diff options
Diffstat (limited to 'kernels/linux-libre-rt/3.14.14-a410a5e2b7-loongson-community.patch')
| -rw-r--r-- | kernels/linux-libre-rt/3.14.14-a410a5e2b7-loongson-community.patch | 10869 |
1 files changed, 10869 insertions, 0 deletions
diff --git a/kernels/linux-libre-rt/3.14.14-a410a5e2b7-loongson-community.patch b/kernels/linux-libre-rt/3.14.14-a410a5e2b7-loongson-community.patch new file mode 100644 index 000000000..c7a63c2e5 --- /dev/null +++ b/kernels/linux-libre-rt/3.14.14-a410a5e2b7-loongson-community.patch @@ -0,0 +1,10869 @@ +diff --git a/Makefile b/Makefile +index 230c7f6..69dfbc4 100644 +--- a/Makefile ++++ b/Makefile +@@ -244,8 +244,8 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ + + HOSTCC = gcc + HOSTCXX = g++ +-HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer +-HOSTCXXFLAGS = -O2 ++HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O3 -fomit-frame-pointer ++HOSTCXXFLAGS = -O3 + + # Decide whether to build built-in, modular, or both. + # Normally, just do built-in. +@@ -582,7 +582,7 @@ all: vmlinux + ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE + KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) + else +-KBUILD_CFLAGS += -O2 ++KBUILD_CFLAGS += -O3 + endif + + include $(srctree)/arch/$(SRCARCH)/Makefile +diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig +index 95fa1f1..82dc7e8 100644 +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -278,7 +278,7 @@ config LASAT + + config MACH_LOONGSON + bool "Loongson family of machines" +- select SYS_SUPPORTS_ZBOOT ++ select SYS_SUPPORTS_ZBOOT_UART16550 + help + This enables the support of Loongson family of machines. + +@@ -885,6 +885,60 @@ config CSRC_IOASIC + config CSRC_R4K + bool + ++config MIPS_USER_RDTSC ++ bool "Emulate rdtsc instruction for MIPS" ++ depends on CSRC_R4K && MIPS32_O32 ++ default n ++ help ++ This optoin enables the Emulated rdtsc support for MIPS, which allows ++ the user-space applications read the R4k count directly. Currently, ++ this only support the CONFIG_MIPS32_O32 and R4K, but future, we may ++ add support for scall64-{n32,64}.S and scall32-32.S and for the count ++ registers provided by the other MIPS variants. ++ ++ This emulation based on the syscall instruction, by default, the ++ syscall is encoded as 0x0000000c, except the 0xc, the other parts can ++ be encoded as specific meaning. when a syscall instruction is issued, ++ through checking the encoding of the instruction, when the encoding ++ is the generic 0x000000c, we do the generic syscall work, if ++ something other is encoded in, we can do relevant things, except for ++ the light-weight things, such as read a register. herein, we read the ++ count register whenever there is something encoded in the syscall ++ instruction. In the future, we may be possible to abstract more ++ light-weight & frequently-used operations and add a ++ sys_call_table-like table to store the entries of some light-weight ++ operations and encode 1,2,3... into the syscall instruction and jump ++ to respective entry for diffrent numbers, as a result, we get ++ fast-syscall and which may speed up the user-space applications and ++ even be possibly improve the determinism. ++ ++ *Example* ++ ++ #include <stdio.h> ++ #include <stdint.h> ++ ++ /* ++ * Currently, our return value is only 32bit, In the long run, ++ * this should be uint64_t, just like clock_gettime(), but it ++ * should has high precision/low overhead than clock_gettime() ++ */ ++ uint32_t rdtsc(void) ++ { ++ /* ++ * Linux will store the value of the count register into ++ * the v0 register, which is just the return value of this ++ * function, so, please ignore the compiling warning. ++ */ ++ __asm__ __volatile__ ( ++ "syscall 1\n" ++ :::"$2"); ++ } ++ ++ int main(int argc, char *argv[]) ++ { ++ return printf("cycles: %u\n", rdtsc()); ++ } ++ + config CSRC_GIC + bool + +@@ -1492,6 +1546,15 @@ config CPU_LOONGSON2 + bool + select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_64BIT_KERNEL ++ select CPU_SUPPORTS_HIGHMEM if ! EMBEDDED ++ select ARCH_WANT_OPTIONAL_GPIOLIB ++ ++config CPU_LOONGSON1 ++ bool ++ select CPU_MIPS32 ++ select CPU_MIPSR2 ++ select CPU_HAS_PREFETCH ++ select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_HIGHMEM + select CPU_SUPPORTS_HUGEPAGES + +@@ -2110,7 +2173,7 @@ config SYS_SUPPORTS_MICROMIPS + + config ARCH_FLATMEM_ENABLE + def_bool y +- depends on !NUMA && !CPU_LOONGSON2 ++ depends on !NUMA && !(CPU_LOONGSON2 && HIBERNATION) + + config ARCH_DISCONTIGMEM_ENABLE + bool +diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug +index b147e70..f32dfb0 100644 +--- a/arch/mips/Kconfig.debug ++++ b/arch/mips/Kconfig.debug +@@ -7,9 +7,9 @@ config TRACE_IRQFLAGS_SUPPORT + source "lib/Kconfig.debug" + + config EARLY_PRINTK +- bool "Early printk" if EXPERT ++ bool "Early printk" + depends on SYS_HAS_EARLY_PRINTK +- default y ++ default n + help + This option enables special console drivers which allow the kernel + to print messages very early in the bootup process. +diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile +index 61af6b6..8598044 100644 +--- a/arch/mips/boot/compressed/Makefile ++++ b/arch/mips/boot/compressed/Makefile +@@ -30,9 +30,10 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ + targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o + + # decompressor objects (linked with vmlinuz) +-vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/dbg.o ++vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o + + ifdef CONFIG_DEBUG_ZBOOT ++vmlinuzobjs-y += $(obj)/dbg.o + vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o + vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o + endif +@@ -79,9 +80,18 @@ quiet_cmd_zld = LD $@ + cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@ + quiet_cmd_strip = STRIP $@ + cmd_strip = $(STRIP) -s $@ ++ifdef CONFIG_EMBEDDED ++quiet_cmd_sstrip = SSTRIP $@ ++ cmd_sstrip = $(srctree)/scripts/sstrip.sh $@ ++endif + vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr + $(call cmd,zld) + $(call cmd,strip) ++ $(call cmd,sstrip) ++ ++vmlinuz.unsstrip: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr ++ $(call cmd,zld) ++ $(call cmd,strip) + + # + # Some DECstations need all possible sections of an ECOFF executable +@@ -94,14 +104,14 @@ endif + hostprogs-y += ../elf2ecoff + + ifdef CONFIG_32BIT +- VMLINUZ = vmlinuz ++ VMLINUZ = vmlinuz.unsstrip + else + VMLINUZ = vmlinuz.32 + endif + + quiet_cmd_32 = OBJCOPY $@ + cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ +-vmlinuz.32: vmlinuz ++vmlinuz.32: vmlinuz.unsstrip + $(call cmd,32) + + quiet_cmd_ecoff = ECOFF $@ +@@ -110,11 +120,11 @@ vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) + $(call cmd,ecoff) + + OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary +-vmlinuz.bin: vmlinuz ++vmlinuz.bin: vmlinuz.unsstrip + $(call cmd,objcopy) + + OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec +-vmlinuz.srec: vmlinuz ++vmlinuz.srec: vmlinuz.unsstrip + $(call cmd,objcopy) + +-clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec} ++clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec,unsstrip} +diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c +index c00c4dd..f4a656d 100644 +--- a/arch/mips/boot/compressed/decompress.c ++++ b/arch/mips/boot/compressed/decompress.c +@@ -27,8 +27,13 @@ unsigned long free_mem_end_ptr; + extern unsigned char __image_begin, __image_end; + + /* debug interfaces */ ++#ifdef CONFIG_DEBUG_ZBOOT + extern void puts(const char *s); + extern void puthex(unsigned long long val); ++#else ++#define puts(s) ++#define puthex(val) ++#endif + + void error(char *x) + { +diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script +index 5a33409..de04ac9 100644 +--- a/arch/mips/boot/compressed/ld.script ++++ b/arch/mips/boot/compressed/ld.script +@@ -49,5 +49,6 @@ SECTIONS + *(.reginfo) + *(.comment) + *(.note) ++ *(.gnu.attributes) + } + } +diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h +index 84238c5..28e0b03 100644 +--- a/arch/mips/include/asm/dma-mapping.h ++++ b/arch/mips/include/asm/dma-mapping.h +@@ -6,9 +6,7 @@ + #include <asm/cache.h> + #include <asm-generic/dma-coherent.h> + +-#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */ + #include <dma-coherence.h> +-#endif + + extern struct dma_map_ops *mips_dma_map_ops; + +diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h +index a0ee0cb..c6df1c4 100644 +--- a/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h ++++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536.h +@@ -299,7 +299,42 @@ extern void _wrmsr(u32 msr, u32 hi, u32 lo); + + /****************** NATIVE ***************************/ + /* GPIO : I/O SPACE; REG : 32BITS */ +-#define GPIOL_OUT_VAL 0x00 +-#define GPIOL_OUT_EN 0x04 ++#define GPIOL_OUT_VAL 0x00 ++#define GPIOL_OUT_EN 0x04 ++#define GPIOL_OUT_AUX1_SEL 0x10 ++/* SMB : I/O SPACE, REG : 8BITS WIDTH */ ++#define SMB_SDA 0x00 ++#define SMB_STS 0x01 ++#define SMB_STS_SLVSTP (1 << 7) ++#define SMB_STS_SDAST (1 << 6) ++#define SMB_STS_BER (1 << 5) ++#define SMB_STS_NEGACK (1 << 4) ++#define SMB_STS_STASTR (1 << 3) ++#define SMB_STS_NMATCH (1 << 2) ++#define SMB_STS_MASTER (1 << 1) ++#define SMB_STS_XMIT (1 << 0) ++#define SMB_CTRL_STS 0x02 ++#define SMB_CSTS_TGSTL (1 << 5) ++#define SMB_CSTS_TSDA (1 << 4) ++#define SMB_CSTS_GCMTCH (1 << 3) ++#define SMB_CSTS_MATCH (1 << 2) ++#define SMB_CSTS_BB (1 << 1) ++#define SMB_CSTS_BUSY (1 << 0) ++#define SMB_CTRL1 0x03 ++#define SMB_CTRL1_STASTRE (1 << 7) ++#define SMB_CTRL1_NMINTE (1 << 6) ++#define SMB_CTRL1_GCMEN (1 << 5) ++#define SMB_CTRL1_ACK (1 << 4) ++#define SMB_CTRL1_RSVD (1 << 3) ++#define SMB_CTRL1_INTEN (1 << 2) ++#define SMB_CTRL1_STOP (1 << 1) ++#define SMB_CTRL1_START (1 << 0) ++#define SMB_ADDR 0x04 ++#define SMB_ADDR_SAEN (1 << 7) ++#define SMB_CONTROLLER_ADDR (0xef << 0) ++#define SMB_CTRL2 0x05 ++#define SMB_FREQ (0x20 << 1) ++#define SMB_ENABLE (0x01 << 0) ++#define SMB_CTRL3 0x06 + + #endif /* _CS5536_H */ +diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_mfgpt.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_mfgpt.h +index 021d017..d058e46 100644 +--- a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_mfgpt.h ++++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_mfgpt.h +@@ -10,26 +10,45 @@ + + #ifdef CONFIG_CS5536_MFGPT + extern void setup_mfgpt0_timer(void); +-extern void disable_mfgpt0_counter(void); +-extern void enable_mfgpt0_counter(void); ++extern void disable_mfgpt_counter(void); ++extern void enable_mfgpt_counter(void); + #else + static inline void __maybe_unused setup_mfgpt0_timer(void) + { + } +-static inline void __maybe_unused disable_mfgpt0_counter(void) ++static inline void __maybe_unused disable_mfgpt_counter(void) + { + } +-static inline void __maybe_unused enable_mfgpt0_counter(void) ++static inline void __maybe_unused enable_mfgpt_counter(void) + { + } + #endif + +-#define MFGPT_TICK_RATE 14318000 +-#define COMPARE ((MFGPT_TICK_RATE + HZ/2) / HZ) ++#define MFGPT_CLK_RATE(c) ((14318000UL-32768)*c + 32768) ++#define MFGPT_TICK_RATE(c, scale) (MFGPT_CLK_RATE(c) / (1 << scale)) ++#define MFGPT_COMPARE(c, scale) ((MFGPT_TICK_RATE(c, scale)+HZ/2)/HZ) + +-#define MFGPT_BASE mfgpt_base +-#define MFGPT0_CMP2 (MFGPT_BASE + 2) +-#define MFGPT0_CNT (MFGPT_BASE + 4) +-#define MFGPT0_SETUP (MFGPT_BASE + 6) ++#define MFGPT_SETUP_ENABLE (1 << 15) ++#define MFGPT_SETUP_ACK (3 << 13) ++#define MFGPT_SETUP_SETUP (1 << 12) ++#define MFGPT_SETUP_CMP2EVT (3 << 8) ++#define MFGPT_SETUP_CMP1EVT (3 << 6) ++#define MFGPT_SETUP_CLOCK(c) (c << 4) ++#define MFGPT_SETUP_SCALE(scale) scale ++ ++#define MFGPT0_CMP1 mfgpt_base ++#define MFGPT0_CMP2 (mfgpt_base + 0x02) ++#define MFGPT0_CNT (mfgpt_base + 0x04) ++#define MFGPT0_SETUP (mfgpt_base + 0x06) ++ ++#define MFGPT1_CMP1 (mfgpt_base + 0x08) ++#define MFGPT1_CMP2 (mfgpt_base + 0x0A) ++#define MFGPT1_CNT (mfgpt_base + 0x0C) ++#define MFGPT1_SETUP (mfgpt_base + 0x0E) ++ ++#define MFGPT2_CMP1 (mfgpt_base + 0x10) ++#define MFGPT2_CMP2 (mfgpt_base + 0x12) ++#define MFGPT2_CNT (mfgpt_base + 0x14) ++#define MFGPT2_SETUP (mfgpt_base + 0x16) + + #endif /*!_CS5536_MFGPT_H */ +diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h +index 8a7ecb4..ac01334 100644 +--- a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h ++++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_pci.h +@@ -13,6 +13,7 @@ + + #include <linux/types.h> + #include <linux/pci_regs.h> ++#include <linux/pci_ids.h> + + extern void cs5536_pci_conf_write4(int function, int reg, u32 value); + extern u32 cs5536_pci_conf_read4(int function, int reg); +diff --git a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h +index 1f17c18..9bc368f0d 100644 +--- a/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h ++++ b/arch/mips/include/asm/mach-loongson/cs5536/cs5536_vsm.h +@@ -17,15 +17,43 @@ typedef u32 (*cs5536_pci_vsm_read)(int reg); + extern void pci_##name##_write_reg(int reg, u32 value); \ + extern u32 pci_##name##_read_reg(int reg); + ++#define DEFINE_CS5536_MODULE(name) \ ++static void pci_##name##_write_reg(int reg, u32 value) {} \ ++static u32 pci_##name##_read_reg(int reg) { return 0; } ++ ++/* isa module */ ++#ifdef CONFIG_CS5536_ISA ++DECLARE_CS5536_MODULE(isa) ++#else ++DEFINE_CS5536_MODULE(isa) ++#endif ++ + /* ide module */ ++#ifdef CONFIG_CS5536_IDE + DECLARE_CS5536_MODULE(ide) ++#else ++DEFINE_CS5536_MODULE(ide) ++#endif ++ + /* acc module */ ++#ifdef CONFIG_CS5536_AUDIO + DECLARE_CS5536_MODULE(acc) ++#else ++DEFINE_CS5536_MODULE(acc) ++#endif ++ + /* ohci module */ ++#ifdef CONFIG_CS5536_OHCI + DECLARE_CS5536_MODULE(ohci) +-/* isa module */ +-DECLARE_CS5536_MODULE(isa) ++#else ++DEFINE_CS5536_MODULE(ohci) ++#endif ++ + /* ehci module */ ++#ifdef CONFIG_CS5536_EHCI + DECLARE_CS5536_MODULE(ehci) ++#else ++DEFINE_CS5536_MODULE(ehci) ++#endif + + #endif /* _CS5536_VSM_H */ +diff --git a/arch/mips/include/asm/mach-loongson/gpio.h b/arch/mips/include/asm/mach-loongson/gpio.h +index 211a7b7..f15db3c 100644 +--- a/arch/mips/include/asm/mach-loongson/gpio.h ++++ b/arch/mips/include/asm/mach-loongson/gpio.h +@@ -13,12 +13,16 @@ + #ifndef __STLS2F_GPIO_H + #define __STLS2F_GPIO_H + ++#ifdef CONFIG_GPIOLIB ++#define ARCH_NR_GPIOS 4 + #include <asm-generic/gpio.h> + + extern void gpio_set_value(unsigned gpio, int value); + extern int gpio_get_value(unsigned gpio); + extern int gpio_cansleep(unsigned gpio); + ++#endif ++ + /* The chip can do interrupt + * but it has not been tested and doc not clear + */ +diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h +index b286534..222d179 100644 +--- a/arch/mips/include/asm/mach-loongson/loongson.h ++++ b/arch/mips/include/asm/mach-loongson/loongson.h +@@ -32,17 +32,13 @@ extern void __init prom_init_memory(void); + extern void __init prom_init_cmdline(void); + extern void __init prom_init_machtype(void); + extern void __init prom_init_env(void); +-#ifdef CONFIG_LOONGSON_UART_BASE +-extern unsigned long _loongson_uart_base, loongson_uart_base; +-extern void prom_init_loongson_uart_base(void); +-#endif ++extern void __init prom_init_uart_base(void); + +-static inline void prom_init_uart_base(void) +-{ +-#ifdef CONFIG_LOONGSON_UART_BASE +- prom_init_loongson_uart_base(); +-#endif +-} ++/* ++ * Copy kernel command line from arcs_cmdline ++ */ ++#include <asm/setup.h> ++extern char loongson_cmdline[COMMAND_LINE_SIZE]; + + /* irq operation functions */ + extern void bonito_irqdispatch(void); +@@ -249,6 +245,12 @@ extern struct cpufreq_frequency_table loongson2_clockmod_table[]; + + /* Chip Config */ + #define LOONGSON_CHIPCFG0 LOONGSON_REG(LOONGSON_REGBASE + 0x80) ++#define LOONGSON_GET_CPUFREQ() (LOONGSON_CHIPCFG0 & 7) ++ ++#define LOONGSON_SET_CPUFREQ(level) do { \ ++ LOONGSON_CHIPCFG0 = (LOONGSON_CHIPCFG0 & (~7)) | (level); \ ++} while (0) ++ + #endif + + /* +diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h +index 3810d5c..d219499 100644 +--- a/arch/mips/include/asm/mach-loongson/machine.h ++++ b/arch/mips/include/asm/mach-loongson/machine.h +@@ -24,4 +24,10 @@ + + #endif + ++#ifdef CONFIG_DEXXON_GDIUM ++ ++#define LOONGSON_MACHTYPE MACH_DEXXON_GDIUM2F10 ++ ++#endif ++ + #endif /* __ASM_MACH_LOONGSON_MACHINE_H */ +diff --git a/arch/mips/include/asm/mach-loongson1/clock.h b/arch/mips/include/asm/mach-loongson1/clock.h +new file mode 100644 +index 0000000..dd1afdb +--- /dev/null ++++ b/arch/mips/include/asm/mach-loongson1/clock.h +@@ -0,0 +1,53 @@ ++#ifndef __ASM_MACH_LOONGSON1_CLOCK_H ++#define __ASM_MACH_LOONGSON1_CLOCK_H ++ ++#include <linux/kref.h> ++#include <linux/list.h> ++#include <linux/seq_file.h> ++#include <linux/clk.h> ++ ++extern void (*cpu_wait) (void); ++ ++struct clk; ++ ++struct clk_ops { ++ void (*init) (struct clk *clk); ++ void (*enable) (struct clk *clk); ++ void (*disable) (struct clk *clk); ++ void (*recalc) (struct clk *clk); ++ int (*set_rate) (struct clk *clk, unsigned long rate, int algo_id); ++ long (*round_rate) (struct clk *clk, unsigned long rate); ++}; ++ ++struct clk { ++ struct list_head node; ++ const char *name; ++ int id; ++ struct module *owner; ++ ++ struct clk *parent; ++ struct clk_ops *ops; ++ ++ struct kref kref; ++ ++ unsigned long rate; ++ unsigned long flags; ++}; ++ ++#define CLK_ALWAYS_ENABLED (1 << 0) ++#define CLK_RATE_PROPAGATES (1 << 1) ++ ++/* Should be defined by processor-specific code */ ++void arch_init_clk_ops(struct clk_ops **, int type); ++ ++int clk_init(void); ++ ++int __clk_enable(struct clk *); ++void __clk_disable(struct clk *); ++ ++void clk_recalc_rate(struct clk *); ++ ++int clk_register(struct clk *); ++void clk_unregister(struct clk *); ++ ++#endif /* __ASM_MIPS_CLOCK_H */ +diff --git a/arch/mips/include/asm/mach-loongson1/regs-intc.h b/arch/mips/include/asm/mach-loongson1/regs-intc.h +new file mode 100644 +index 0000000..6d5db23 +--- /dev/null ++++ b/arch/mips/include/asm/mach-loongson1/regs-intc.h +@@ -0,0 +1,25 @@ ++/* ++ * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com> ++ * ++ * Loongson1 Interrupt register definitions. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#ifndef __ASM_MACH_LOONGSON1_REGS_INTC_H ++#define __ASM_MACH_LOONGSON1_REGS_INTC_H ++ ++#define LS1X_INTC_REG(n, x) \ ++ (ioremap(LS1X_INTC_BASE + (n * 0x18) + (x), 4)) ++ ++#define LS1X_INTC_INTISR(n) LS1X_INTC_REG(n, 0x0) ++#define LS1X_INTC_INTIEN(n) LS1X_INTC_REG(n, 0x4) ++#define LS1X_INTC_INTSET(n) LS1X_INTC_REG(n, 0x8) ++#define LS1X_INTC_INTCLR(n) LS1X_INTC_REG(n, 0xc) ++#define LS1X_INTC_INTPOL(n) LS1X_INTC_REG(n, 0x10) ++#define LS1X_INTC_INTEDGE(n) LS1X_INTC_REG(n, 0x14) ++ ++#endif /* __ASM_MACH_LOONGSON1_REGS_INTC_H */ +diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h +index 44b705d..c28a782 100644 +--- a/arch/mips/include/asm/module.h ++++ b/arch/mips/include/asm/module.h +@@ -126,6 +126,8 @@ search_module_dbetables(unsigned long addr) + #define MODULE_PROC_FAMILY "LOONGSON1 " + #elif defined CONFIG_CPU_LOONGSON2 + #define MODULE_PROC_FAMILY "LOONGSON2 " ++#elif defined CONFIG_CPU_LOONGSON1 ++#define MODULE_PROC_FAMILY "LOONGSON1 " + #elif defined CONFIG_CPU_CAVIUM_OCTEON + #define MODULE_PROC_FAMILY "OCTEON " + #elif defined CONFIG_CPU_XLR +diff --git a/arch/mips/include/asm/timex.h b/arch/mips/include/asm/timex.h +index c542475..74fef34 100644 +--- a/arch/mips/include/asm/timex.h ++++ b/arch/mips/include/asm/timex.h +@@ -10,6 +10,10 @@ + + #ifdef __KERNEL__ + ++#ifdef CONFIG_CSRC_R4K ++#define ARCH_HAS_PREPARED_LPJ ++#endif ++ + #include <asm/cpu-features.h> + #include <asm/mipsregs.h> + #include <asm/cpu-type.h> +diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h +index f25181b..d243152 100644 +--- a/arch/mips/include/uapi/asm/inst.h ++++ b/arch/mips/include/uapi/asm/inst.h +@@ -62,6 +62,8 @@ enum spec_op { + enum spec2_op { + madd_op, maddu_op, mul_op, spec2_3_unused_op, + msub_op, msubu_op, /* more unused ops */ ++ loongson_madd_op = 0x18, loongson_msub_op, ++ loongson_nmadd_op, loongson_nmsub_op, + clz_op = 0x20, clo_op, + dclz_op = 0x24, dclo_op, + sdbpp_op = 0x3f +@@ -135,7 +137,7 @@ enum cop0_com_func { + */ + enum cop1_fmt { + s_fmt, d_fmt, e_fmt, q_fmt, +- w_fmt, l_fmt ++ w_fmt, l_fmt, ps_fmt + }; + + /* +@@ -164,7 +166,8 @@ enum cop1_sdw_func { + enum cop1x_func { + lwxc1_op = 0x00, ldxc1_op = 0x01, + swxc1_op = 0x08, sdxc1_op = 0x09, +- pfetch_op = 0x0f, madd_s_op = 0x20, ++ pfetch_op = 0x0f, ++ prefx_op = 0x17, madd_s_op = 0x20, + madd_d_op = 0x21, madd_e_op = 0x22, + msub_s_op = 0x28, msub_d_op = 0x29, + msub_e_op = 0x2a, nmadd_s_op = 0x30, +diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S +index 6788727..0f81805 100644 +--- a/arch/mips/kernel/scall64-o32.S ++++ b/arch/mips/kernel/scall64-o32.S +@@ -26,6 +26,18 @@ + + .align 5 + NESTED(handle_sys, PT_SIZE, sp) ++#ifdef CONFIG_MIPS_USER_RDTSC ++ MFC0 k0, CP0_EPC ++ lw k1, 0(k0) ++ sltiu k1, k1, 0x1c ++ bne k1, zero, 1f # Normal syscall code: 0x0c < 0x1c ++ nop ++ mfc0 v0, CP0_COUNT # Get TSC ++ PTR_ADDIU k0, 4 # ret from syscall ++ MTC0 k0, CP0_EPC ++ eret ++1: ++#endif /* CONFIG_MIPS_USER_RDTSC */ + .set noat + SAVE_SOME + TRACE_IRQS_ON_RELOAD +diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c +index dcb8e5d..45177bc 100644 +--- a/arch/mips/kernel/time.c ++++ b/arch/mips/kernel/time.c +@@ -120,6 +120,11 @@ static __init int cpu_has_mfc0_count_bug(void) + + void __init time_init(void) + { ++#ifdef CONFIG_HR_SCHED_CLOCK ++ if (!mips_clockevent_init() || !cpu_has_mfc0_count_bug()) ++ write_c0_count(0); ++#endif ++ + plat_time_init(); + + /* +diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile +index eeddc58..d7bec00 100644 +--- a/arch/mips/lib/Makefile ++++ b/arch/mips/lib/Makefile +@@ -2,10 +2,14 @@ + # Makefile for MIPS-specific library files.. + # + +-lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \ ++lib-y += bitops.o csum_partial.o memcpy.o memset.o \ + mips-atomic.o strlen_user.o strncpy_user.o \ + strnlen_user.o uncached.o + ++ifndef CONFIG_CSRC_R4K ++lib-y += delay.o ++endif ++ + obj-y += iomap.o + obj-$(CONFIG_PCI) += iomap-pci.o + +diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig +index 263beb9..d56d594 100644 +--- a/arch/mips/loongson/Kconfig ++++ b/arch/mips/loongson/Kconfig +@@ -32,12 +32,12 @@ config LEMOTE_FULOONG2E + + config LEMOTE_MACH2F + bool "Lemote Loongson 2F family machines" +- select ARCH_SPARSEMEM_ENABLE ++ select ARCH_SPARSEMEM_ENABLE if HIBERNATION + select BOARD_SCACHE + select BOOT_ELF32 + select CEVT_R4K if ! MIPS_EXTERNAL_TIMER + select CPU_HAS_WB +- select CS5536 ++ select CS5536 if PCI + select CSRC_R4K if ! MIPS_EXTERNAL_TIMER + select DMA_NONCOHERENT + select GENERIC_ISA_DMA_SUPPORT_BROKEN +@@ -45,23 +45,68 @@ config LEMOTE_MACH2F + select HW_HAS_PCI + select I8259 + select IRQ_CPU +- select ISA + select SYS_HAS_CPU_LOONGSON2F + select SYS_HAS_EARLY_PRINTK + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_64BIT_KERNEL +- select SYS_SUPPORTS_HIGHMEM ++ select SYS_SUPPORTS_HIGHMEM if ! EMBEDDED + select SYS_SUPPORTS_LITTLE_ENDIAN +- select LOONGSON_MC146818 ++ select LOONGSON_MC146818 if RTC_DRV_CMOS + help + Lemote Loongson 2F family machines utilize the 2F revision of + Loongson processor and the AMD CS5536 south bridge. + + These family machines include fuloong2f mini PC, yeeloong2f notebook, + LingLoong allinone PC and so forth. ++ ++config DEXXON_GDIUM ++ bool "Dexxon Gdium Netbook" ++ select ARCH_SPARSEMEM_ENABLE ++ select BOARD_SCACHE ++ select BOOT_ELF32 ++ select CEVT_R4K if ! MIPS_EXTERNAL_TIMER ++ select CPU_HAS_WB ++ select CSRC_R4K if ! MIPS_EXTERNAL_TIMER ++ select DMA_NONCOHERENT ++ select GENERIC_ISA_DMA_SUPPORT_BROKEN ++ select HW_HAS_PCI ++ select I8259 ++ select IRQ_CPU ++ select ISA ++ select SYS_HAS_CPU_LOONGSON2F ++ select SYS_HAS_EARLY_PRINTK ++ select SYS_SUPPORTS_32BIT_KERNEL ++ select SYS_SUPPORTS_64BIT_KERNEL ++ select SYS_SUPPORTS_HIGHMEM ++ select SYS_SUPPORTS_LITTLE_ENDIAN ++ select ARCH_REQUIRE_GPIOLIB ++ select HAVE_PWM if MFD_SM501 ++ help ++ Dexxon gdium netbook based on Loongson 2F and SM502. + endchoice + + config CS5536 ++ select CS5536_IDE if (PATA_AMD || BLK_DEV_AMD74XX || PATA_CS5536) ++ select CS5536_OHCI if USB_OHCI_HCD ++ select CS5536_EHCI if USB_EHCI_HCD ++ select CS5536_AUDIO if SND_CS5535AUDIO ++ select CS5536_ISA ++ bool ++ ++config CS5536_ISA ++ select ISA ++ bool ++ ++config CS5536_IDE ++ bool ++ ++config CS5536_OHCI ++ bool ++ ++config CS5536_EHCI ++ bool ++ ++config CS5536_AUDIO + bool + + config CS5536_MFGPT +@@ -81,13 +126,25 @@ config LOONGSON_SUSPEND + default y + depends on CPU_SUPPORTS_CPUFREQ && SUSPEND + +-config LOONGSON_UART_BASE +- bool +- default y +- depends on EARLY_PRINTK || SERIAL_8250 +- + config LOONGSON_MC146818 + bool + default n + ++config GDIUM_PWM_CLOCK ++ tristate "Gdium PWM Timer" ++ default n ++ depends on HAVE_PWM && EXPERIMENTAL && BROKEN ++ select MIPS_EXTERNAL_TIMER ++ help ++ This options enables the experimental sm501-pwm based clock. With it, ++ you may be possible to use the loongson2f cpufreq driver. ++ ++config GDIUM_VERSION ++ int "Configure Gdium Version" ++ depends on DEXXON_GDIUM ++ default "3" ++ help ++ I have no information about how to determine which version your board ++ is, If the default config doesn't work for it, please change it to ++ smaller ones. + endif # MACH_LOONGSON +diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile +index 0dc0055..4b69866 100644 +--- a/arch/mips/loongson/Makefile ++++ b/arch/mips/loongson/Makefile +@@ -15,3 +15,9 @@ obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/ + # + + obj-$(CONFIG_LEMOTE_MACH2F) += lemote-2f/ ++ ++# ++# Dexxon gdium netbook, based on loongson 2F and SM502 ++# ++ ++obj-$(CONFIG_DEXXON_GDIUM) += gdium/ +diff --git a/arch/mips/loongson/Platform b/arch/mips/loongson/Platform +index 29692e5..6be5dff 100644 +--- a/arch/mips/loongson/Platform ++++ b/arch/mips/loongson/Platform +@@ -30,3 +30,4 @@ platform-$(CONFIG_MACH_LOONGSON) += loongson/ + cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson -mno-branch-likely + load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000 + load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000 ++load-$(CONFIG_DEXXON_GDIUM) += 0xffffffff80200000 +diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile +index 9e4484c..73f1f9f 100644 +--- a/arch/mips/loongson/common/Makefile ++++ b/arch/mips/loongson/common/Makefile +@@ -12,7 +12,6 @@ obj-$(CONFIG_PCI) += pci.o + # + obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + obj-$(CONFIG_SERIAL_8250) += serial.o +-obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o + obj-$(CONFIG_LOONGSON_MC146818) += rtc.o + + # +diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c +index 72fed00..96d5919 100644 +--- a/arch/mips/loongson/common/cmdline.c ++++ b/arch/mips/loongson/common/cmdline.c +@@ -17,10 +17,15 @@ + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ ++#include <linux/module.h> + #include <asm/bootinfo.h> + + #include <loongson.h> + ++/* the kernel command line copied from arcs_cmdline */ ++char loongson_cmdline[COMMAND_LINE_SIZE]; ++EXPORT_SYMBOL(loongson_cmdline); ++ + void __init prom_init_cmdline(void) + { + int prom_argc; +@@ -45,4 +50,31 @@ void __init prom_init_cmdline(void) + } + + prom_init_machtype(); ++ ++ /* append machine specific command line */ ++ switch (mips_machtype) { ++ case MACH_LEMOTE_LL2F: ++ if ((strstr(arcs_cmdline, "video=")) == NULL) ++ strcat(arcs_cmdline, " video=sisfb:1360x768-16@60"); ++ break; ++ case MACH_LEMOTE_FL2F: ++ if ((strstr(arcs_cmdline, "ide_core.ignore_cable=")) == NULL) ++ strcat(arcs_cmdline, " ide_core.ignore_cable=0"); ++ break; ++ case MACH_LEMOTE_ML2F7: ++ /* Mengloong-2F has a 800x480 screen */ ++ if ((strstr(arcs_cmdline, "vga=")) == NULL) ++ strcat(arcs_cmdline, " vga=0x313"); ++ break; ++ case MACH_DEXXON_GDIUM2F10: ++ /* gdium has a 1024x600 screen */ ++ if ((strstr(arcs_cmdline, "video=")) == NULL) ++ strcat(arcs_cmdline, " video=sm501fb:1024x600@60"); ++ break; ++ default: ++ break; ++ } ++ ++ /* copy arcs_cmdline into loongson_cmdline */ ++ strncpy(loongson_cmdline, arcs_cmdline, COMMAND_LINE_SIZE); + } +diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile +index f12e640..70f6057 100644 +--- a/arch/mips/loongson/common/cs5536/Makefile ++++ b/arch/mips/loongson/common/cs5536/Makefile +@@ -2,8 +2,13 @@ + # Makefile for CS5536 support. + # + +-obj-$(CONFIG_CS5536) += cs5536_pci.o cs5536_ide.o cs5536_acc.o cs5536_ohci.o \ +- cs5536_isa.o cs5536_ehci.o ++obj-$(CONFIG_CS5536) += cs5536_pci.o ++ ++obj-$(CONFIG_ISA) += cs5536_isa.o ++obj-$(CONFIG_CS5536_IDE) += cs5536_ide.o ++obj-$(CONFIG_CS5536_AUDIO) += cs5536_acc.o ++obj-$(CONFIG_CS5536_OHCI) += cs5536_ohci.o ++obj-$(CONFIG_CS5536_EHCI) += cs5536_ehci.o + + # + # Enable cs5536 mfgpt Timer +diff --git a/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c +index c639b9d..a7078ae 100644 +--- a/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c ++++ b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c +@@ -7,6 +7,9 @@ + * Copyright (C) 2009 Lemote Inc. + * Author: Wu zhangjin, wuzhangjin@gmail.com + * ++ * Copyright (C) 2010 Lemote Inc. ++ * Author: Gang Liang, randomizedthinking@gmail.com ++ * + * Reference: AMD Geode(TM) CS5536 Companion Device Data Book + * + * This program is free software; you can redistribute it and/or modify it +@@ -15,11 +18,24 @@ + * option) any later version. + */ + ++/* ++ * The MFGPT base address is variable, i.e., it could change over time. In ++ * reality, it only changes once when setting up the PCI memory mapping (occurs ++ * about 0.2 second from boot). But because of this, we have to read in the ++ * mfgpt base address repeatly in the beginning of various routines, most ++ * noticeably, mfgpt1_read_cycle (for sched_clock), and mfgpt1_interrupt. ++ * ++ * The source of problem is that PMON and the current cs5536 set up pci ++ * register window differently (to be further confirmed). Can we set ++ * them the same so as to save the trouble here? ++ * ++ * Now an ugly hack is used to save a few CPU cycles... likely an ++ * over-optimization. Feel free to remove it. ++ */ ++ + #include <linux/io.h> + #include <linux/init.h> + #include <linux/module.h> +-#include <linux/jiffies.h> +-#include <linux/spinlock.h> + #include <linux/interrupt.h> + #include <linux/clockchips.h> + +@@ -27,108 +43,143 @@ + + #include <cs5536/cs5536_mfgpt.h> + +-DEFINE_SPINLOCK(mfgpt_lock); +-EXPORT_SYMBOL(mfgpt_lock); ++static void mfgpt0_set_mode(enum clock_event_mode, struct clock_event_device*); ++static int mfgpt0_next_event(unsigned long, struct clock_event_device*); ++static irqreturn_t mfgpt0_interrupt(int irq, void *dev_id); ++static void mfgpt0_start_timer(u16 delta); + ++static cycle_t mfgpt1_read_cycle(struct clocksource *cs); ++ ++static enum clock_event_mode mfgpt0_mode = CLOCK_EVT_MODE_SHUTDOWN; + static u32 mfgpt_base; + +-/* +- * Initialize the MFGPT timer. +- * +- * This is also called after resume to bring the MFGPT into operation again. +- */ ++static struct clock_event_device mfgpt0_clockevent = { ++ .name = "mfgpt0", ++ .features = CLOCK_EVT_MODE_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, ++ .set_mode = mfgpt0_set_mode, ++ .set_next_event = mfgpt0_next_event, ++ .rating = 220, ++ .irq = CS5536_MFGPT_INTR, ++}; ++ ++static struct irqaction irq5 = { ++ .handler = mfgpt0_interrupt, ++ .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER, ++ .name = "mfgpt0-timer" ++}; ++ ++static struct clocksource mfgpt1_clocksource = { ++ .name = "mfgpt1", ++ .rating = 210, ++ .read = mfgpt1_read_cycle, ++ .mask = CLOCKSOURCE_MASK(16), ++ .flags = CLOCK_SOURCE_IS_CONTINUOUS ++}; + +-/* disable counter */ +-void disable_mfgpt0_counter(void) ++static inline void enable_mfgpt0_counter(void) + { +- outw(inw(MFGPT0_SETUP) & 0x7fff, MFGPT0_SETUP); ++ u32 basehi; ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base); ++ ++ /* clockevent: 14M, divisor = 8 (scale=3), CMP2 event mode */ ++ outw(MFGPT_SETUP_ACK | MFGPT_SETUP_CMP2EVT | ++ MFGPT_SETUP_CLOCK(1) | MFGPT_SETUP_SCALE(3), MFGPT0_SETUP); ++ outw(0, MFGPT0_CNT); ++ outw(MFGPT_COMPARE(1, 3), MFGPT0_CMP2); ++ outw(0xFFFF, MFGPT0_SETUP); + } +-EXPORT_SYMBOL(disable_mfgpt0_counter); + +-/* enable counter, comparator2 to event mode, 14.318MHz clock */ +-void enable_mfgpt0_counter(void) ++static inline void enable_mfgpt1_counter(void) + { +- outw(0xe310, MFGPT0_SETUP); ++ u32 basehi; ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base); ++ ++ /* clocksource: 32K w/ divisor = 2 (scale=1) */ ++ outw(MFGPT_SETUP_ACK | MFGPT_SETUP_CLOCK(0) | ++ MFGPT_SETUP_SCALE(1), MFGPT1_SETUP); ++ ++ outw(0, MFGPT1_CNT); ++ outw(0xFFFF, MFGPT1_CMP2); /* CNT won't tick with no CMP set */ ++ outw(0xFFFF, MFGPT1_SETUP); + } +-EXPORT_SYMBOL(enable_mfgpt0_counter); + +-static void init_mfgpt_timer(enum clock_event_mode mode, +- struct clock_event_device *evt) ++void enable_mfgpt_counter(void) + { +- spin_lock(&mfgpt_lock); +- +- switch (mode) { +- case CLOCK_EVT_MODE_PERIODIC: +- outw(COMPARE, MFGPT0_CMP2); /* set comparator2 */ +- outw(0, MFGPT0_CNT); /* set counter to 0 */ +- enable_mfgpt0_counter(); +- break; +- +- case CLOCK_EVT_MODE_SHUTDOWN: +- case CLOCK_EVT_MODE_UNUSED: +- if (evt->mode == CLOCK_EVT_MODE_PERIODIC || +- evt->mode == CLOCK_EVT_MODE_ONESHOT) +- disable_mfgpt0_counter(); +- break; +- +- case CLOCK_EVT_MODE_ONESHOT: +- /* The oneshot mode have very high deviation, Not use it! */ +- break; +- +- case CLOCK_EVT_MODE_RESUME: +- /* Nothing to do here */ +- break; +- } +- spin_unlock(&mfgpt_lock); ++ /* TODO: add a mfgpt system hard reset here ++ * timers might not reset correctly when OS crashes ++ */ ++ ++ enable_mfgpt0_counter(); ++ enable_mfgpt1_counter(); + } ++EXPORT_SYMBOL(enable_mfgpt_counter); + +-static struct clock_event_device mfgpt_clockevent = { +- .name = "mfgpt", +- .features = CLOCK_EVT_FEAT_PERIODIC, +- .set_mode = init_mfgpt_timer, +- .irq = CS5536_MFGPT_INTR, +-}; ++void disable_mfgpt_counter(void) ++{ ++ outw(0x7FFF, MFGPT0_SETUP); ++ outw(0x7FFF, MFGPT1_SETUP); ++} ++EXPORT_SYMBOL(disable_mfgpt_counter); + +-static irqreturn_t timer_interrupt(int irq, void *dev_id) ++static void mfgpt0_start_timer(u16 delta) + { +- u32 basehi; ++ outw(0x7FFF, MFGPT0_SETUP); ++ outw(0, MFGPT0_CNT); ++ outw(delta, MFGPT0_CMP2); ++ outw(0xFFFF, MFGPT0_SETUP); ++} + +- /* +- * get MFGPT base address +- * +- * NOTE: do not remove me, it's need for the value of mfgpt_base is +- * variable +- */ ++static void mfgpt0_set_mode(enum clock_event_mode mode, ++ struct clock_event_device *evt) ++{ ++ outw(0x7FFF, MFGPT0_SETUP); ++ if (mode == CLOCK_EVT_MODE_PERIODIC) ++ mfgpt0_start_timer(MFGPT_COMPARE(1, 3)); ++ ++ mfgpt0_mode = mode; ++} ++ ++static int mfgpt0_next_event(unsigned long delta, ++ struct clock_event_device *evt) ++{ ++ mfgpt0_start_timer(delta); ++ return 0; ++} ++ ++static irqreturn_t mfgpt0_interrupt(int irq, void *dev_id) ++{ ++ u32 basehi; + _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base); + +- /* ack */ +- outw(inw(MFGPT0_SETUP) | 0x4000, MFGPT0_SETUP); ++ /* stop the timer and ack the interrupt */ ++ outw(0x7FFF, MFGPT0_SETUP); + +- mfgpt_clockevent.event_handler(&mfgpt_clockevent); ++ if (mfgpt0_mode == CLOCK_EVT_MODE_SHUTDOWN) ++ return IRQ_HANDLED; + ++ /* restart timer for periodic mode */ ++ if (mfgpt0_mode == CLOCK_EVT_MODE_PERIODIC) ++ outw(0xFFFF, MFGPT0_SETUP); ++ ++ mfgpt0_clockevent.event_handler(&mfgpt0_clockevent); + return IRQ_HANDLED; + } + +-static struct irqaction irq5 = { +- .handler = timer_interrupt, +- .flags = IRQF_NOBALANCING | IRQF_TIMER, +- .name = "timer" +-}; +- + /* + * Initialize the conversion factor and the min/max deltas of the clock event + * structure and register the clock event source with the framework. + */ + void __init setup_mfgpt0_timer(void) + { +- u32 basehi; +- struct clock_event_device *cd = &mfgpt_clockevent; ++ struct clock_event_device *cd = &mfgpt0_clockevent; + unsigned int cpu = smp_processor_id(); +- + cd->cpumask = cpumask_of(cpu); +- clockevent_set_clock(cd, MFGPT_TICK_RATE); +- cd->max_delta_ns = clockevent_delta2ns(0xffff, cd); +- cd->min_delta_ns = clockevent_delta2ns(0xf, cd); ++ ++ cd->shift = 22; ++ cd->mult = div_sc(MFGPT_TICK_RATE(1, 3), NSEC_PER_SEC, cd->shift); ++ ++ cd->min_delta_ns = clockevent_delta2ns(0xF, cd); ++ cd->max_delta_ns = clockevent_delta2ns(0xFFFF, cd); + + /* Enable MFGPT0 Comparator 2 Output to the Interrupt Mapper */ + _wrmsr(DIVIL_MSR_REG(MFGPT_IRQ), 0, 0x100); +@@ -136,79 +187,24 @@ void __init setup_mfgpt0_timer(void) + /* Enable Interrupt Gate 5 */ + _wrmsr(DIVIL_MSR_REG(PIC_ZSEL_LOW), 0, 0x50000); + +- /* get MFGPT base address */ +- _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base); +- ++ enable_mfgpt0_counter(); + clockevents_register_device(cd); +- + setup_irq(CS5536_MFGPT_INTR, &irq5); + } + +-/* +- * Since the MFGPT overflows every tick, its not very useful +- * to just read by itself. So use jiffies to emulate a free +- * running counter: +- */ +-static cycle_t mfgpt_read(struct clocksource *cs) ++static cycle_t mfgpt1_read_cycle(struct clocksource *cs) + { +- unsigned long flags; +- int count; +- u32 jifs; +- static int old_count; +- static u32 old_jifs; +- +- spin_lock_irqsave(&mfgpt_lock, flags); +- /* +- * Although our caller may have the read side of xtime_lock, +- * this is now a seqlock, and we are cheating in this routine +- * by having side effects on state that we cannot undo if +- * there is a collision on the seqlock and our caller has to +- * retry. (Namely, old_jifs and old_count.) So we must treat +- * jiffies as volatile despite the lock. We read jiffies +- * before latching the timer count to guarantee that although +- * the jiffies value might be older than the count (that is, +- * the counter may underflow between the last point where +- * jiffies was incremented and the point where we latch the +- * count), it cannot be newer. +- */ +- jifs = jiffies; +- /* read the count */ +- count = inw(MFGPT0_CNT); +- +- /* +- * It's possible for count to appear to go the wrong way for this +- * reason: +- * +- * The timer counter underflows, but we haven't handled the resulting +- * interrupt and incremented jiffies yet. +- * +- * Previous attempts to handle these cases intelligently were buggy, so +- * we just do the simple thing now. +- */ +- if (count < old_count && jifs == old_jifs) +- count = old_count; +- +- old_count = count; +- old_jifs = jifs; +- +- spin_unlock_irqrestore(&mfgpt_lock, flags); +- +- return (cycle_t) (jifs * COMPARE) + count; ++ return inw(MFGPT1_CNT); + } + +-static struct clocksource clocksource_mfgpt = { +- .name = "mfgpt", +- .rating = 120, /* Functional for real use, but not desired */ +- .read = mfgpt_read, +- .mask = CLOCKSOURCE_MASK(32), +-}; +- +-int __init init_mfgpt_clocksource(void) ++int __init init_mfgpt1_clocksource(void) + { + if (num_possible_cpus() > 1) /* MFGPT does not scale! */ + return 0; + +- return clocksource_register_hz(&clocksource_mfgpt, MFGPT_TICK_RATE); ++ enable_mfgpt1_counter(); ++ ++ return clocksource_register_hz(&mfgpt1_clocksource, MFGPT_TICK_RATE(0, 1)); + } + +-arch_initcall(init_mfgpt_clocksource); ++arch_initcall(init_mfgpt1_clocksource); +diff --git a/arch/mips/loongson/common/early_printk.c b/arch/mips/loongson/common/early_printk.c +index ced461b..89aecbf 100644 +--- a/arch/mips/loongson/common/early_printk.c ++++ b/arch/mips/loongson/common/early_printk.c +@@ -10,9 +10,13 @@ + * option) any later version. + */ + #include <linux/serial_reg.h> ++#include <linux/module.h> ++#include <asm/bootinfo.h> + + #include <loongson.h> + ++unsigned long _loongson_uart_base; ++ + #define PORT(base, offset) (u8 *)(base + offset) + + static inline unsigned int serial_in(unsigned char *base, int offset) +@@ -39,3 +43,29 @@ void prom_putchar(char c) + + serial_out(uart_base, UART_TX, c); + } ++ ++void __init prom_init_uart_base(void) ++{ ++ unsigned long loongson_uart_base; ++ ++ switch (mips_machtype) { ++ case MACH_LEMOTE_FL2E: ++ loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8; ++ break; ++ case MACH_LEMOTE_FL2F: ++ case MACH_LEMOTE_LL2F: ++ loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8; ++ break; ++ case MACH_LEMOTE_ML2F7: ++ case MACH_LEMOTE_YL2F89: ++ case MACH_DEXXON_GDIUM2F10: ++ case MACH_LEMOTE_NAS: ++ default: ++ /* The CPU provided serial port */ ++ loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8; ++ break; ++ } ++ ++ _loongson_uart_base = ++ (unsigned long)ioremap_nocache(loongson_uart_base, 8); ++} +diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c +index ae7af1f..3083978 100644 +--- a/arch/mips/loongson/common/init.c ++++ b/arch/mips/loongson/common/init.c +@@ -30,8 +30,10 @@ void __init prom_init(void) + prom_init_env(); + prom_init_memory(); + ++#ifdef CONFIG_EARLY_PRINTK + /*init the uart base address */ + prom_init_uart_base(); ++#endif + } + + void __init prom_free_prom_memory(void) +diff --git a/arch/mips/loongson/common/irq.c b/arch/mips/loongson/common/irq.c +index 687003b..d62fa77 100644 +--- a/arch/mips/loongson/common/irq.c ++++ b/arch/mips/loongson/common/irq.c +@@ -10,6 +10,10 @@ + #include <linux/delay.h> + #include <linux/interrupt.h> + ++#include <asm/irq_cpu.h> ++#include <asm/i8259.h> ++#include <asm/mipsregs.h> ++ + #include <loongson.h> + /* + * the first level int-handler will jump here if it is a bonito irq +@@ -48,20 +52,32 @@ asmlinkage void plat_irq_dispatch(void) + void __init arch_init_irq(void) + { + /* +- * Clear all of the interrupts while we change the able around a bit. +- * int-handler is not on bootstrap ++ * The vector addresses of the generic exceptions are in the cached ++ * address space. + */ +- clear_c0_status(ST0_IM | ST0_BEV); ++ clear_c0_status(ST0_BEV); + +- /* no steer */ ++ /* No steer */ + LOONGSON_INTSTEER = 0; + + /* +- * Mask out all interrupt by writing "1" to all bit position in +- * the interrupt reset reg. ++ * Clear all interrupts + */ + LOONGSON_INTENCLR = ~0; + ++ /* ++ * Sets the first-level interrupt dispatcher: ++ * ++ * 0-15: i8259 interrupt (If CONFIG_I8259 selected) ++ * 16-23: mips cpu interrupt ++ * 32-63: bonito irq ++ */ ++ mips_cpu_irq_init(); ++ bonito_irq_init(); ++#ifdef CONFIG_I8259 ++ init_i8259_irqs(); ++#endif ++ + /* machine specific irq init */ + mach_init_irq(); + } +diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c +index 8626a42..7aea259 100644 +--- a/arch/mips/loongson/common/mem.c ++++ b/arch/mips/loongson/common/mem.c +@@ -14,39 +14,24 @@ + #include <mem.h> + #include <pci.h> + ++#define MB(x) ((x) << 20) ++ + void __init prom_init_memory(void) + { +- add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); +- +- add_memory_region(memsize << 20, LOONGSON_PCI_MEM_START - (memsize << +- 20), BOOT_MEM_RESERVED); +- ++ add_memory_region(0x0, MB(memsize), BOOT_MEM_RAM); ++ add_memory_region(MB(memsize), LOONGSON_PCI_MEM_START - MB(memsize), BOOT_MEM_RESERVED); + #ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG +- { +- int bit; +- +- bit = fls(memsize + highmemsize); +- if (bit != ffs(memsize + highmemsize)) +- bit += 20; +- else +- bit = bit + 20 - 1; +- +- /* set cpu window3 to map CPU to DDR: 2G -> 2G */ +- LOONGSON_ADDRWIN_CPUTODDR(ADDRWIN_WIN3, 0x80000000ul, +- 0x80000000ul, (1 << bit)); +- mmiowb(); +- } +-#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */ ++ /* set cpu window3 to map CPU to DDR: 2G -> 0G */ ++ LOONGSON_ADDRWIN_CPUTODDR(ADDRWIN_WIN3, 0x80000000ul, 0, MB(memsize + highmemsize)); ++ mmiowb(); ++#endif + + #ifdef CONFIG_64BIT + if (highmemsize > 0) +- add_memory_region(LOONGSON_HIGHMEM_START, +- highmemsize << 20, BOOT_MEM_RAM); +- ++ add_memory_region(LOONGSON_HIGHMEM_START, MB(highmemsize), BOOT_MEM_RAM); + add_memory_region(LOONGSON_PCI_MEM_END + 1, LOONGSON_HIGHMEM_START - +- LOONGSON_PCI_MEM_END - 1, BOOT_MEM_RESERVED); +- +-#endif /* !CONFIG_64BIT */ ++ LOONGSON_PCI_MEM_END - 1, BOOT_MEM_RESERVED); ++#endif + } + + /* override of arch/mips/mm/cache.c: __uncached_access */ +diff --git a/arch/mips/loongson/common/mtd.c b/arch/mips/loongson/common/mtd.c +new file mode 100644 +index 0000000..49a57a7 +--- /dev/null ++++ b/arch/mips/loongson/common/mtd.c +@@ -0,0 +1,91 @@ ++/* ++ * Driver for flushing/dumping ROM of PMON on loongson family machines ++ * ++ * Copyright (C) 2008-2009 Lemote Inc. ++ * Author: Yan Hua <yanh@lemote.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/map.h> ++#include <linux/mtd/partitions.h> ++ ++#include <asm/io.h> ++ ++#include <loongson.h> ++ ++#define FLASH_PHYS_ADDR LOONGSON_BOOT_BASE ++#define FLASH_SIZE 0x080000 ++ ++#define FLASH_PARTITION0_ADDR 0x00000000 ++#define FLASH_PARTITION0_SIZE 0x00080000 ++ ++struct map_info flash_map = { ++ .name = "flash device", ++ .size = FLASH_SIZE, ++ .bankwidth = 1, ++}; ++ ++struct mtd_partition flash_parts[] = { ++ { ++ .name = "Bootloader", ++ .offset = FLASH_PARTITION0_ADDR, ++ .size = FLASH_PARTITION0_SIZE}, ++}; ++ ++#define PARTITION_COUNT ARRAY_SIZE(flash_parts) ++ ++static struct mtd_info *mymtd; ++ ++int __init init_flash(void) ++{ ++ printk(KERN_NOTICE "flash device: %x at %x\n", ++ FLASH_SIZE, FLASH_PHYS_ADDR); ++ ++ flash_map.phys = FLASH_PHYS_ADDR; ++ flash_map.virt = ioremap(FLASH_PHYS_ADDR, FLASH_SIZE); ++ ++ if (!flash_map.virt) { ++ printk(KERN_NOTICE "Failed to ioremap\n"); ++ return -EIO; ++ } ++ ++ simple_map_init(&flash_map); ++ ++ mymtd = do_map_probe("cfi_probe", &flash_map); ++ if (mymtd) { ++ add_mtd_partitions(mymtd, flash_parts, PARTITION_COUNT); ++ printk(KERN_NOTICE "pmon flash device initialized\n"); ++ return 0; ++ } ++ ++ iounmap((void *)flash_map.virt); ++ return -ENXIO; ++} ++ ++static void __exit cleanup_flash(void) ++{ ++ if (mymtd) { ++ del_mtd_partitions(mymtd); ++ map_destroy(mymtd); ++ } ++ if (flash_map.virt) { ++ iounmap((void *)flash_map.virt); ++ flash_map.virt = 0; ++ } ++} ++ ++module_init(init_flash); ++module_exit(cleanup_flash); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Yanhua <yanh@lemote.com>"); ++MODULE_DESCRIPTION("MTD driver for pmon flushing/dumping"); +diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c +index fa77844..a992931 100644 +--- a/arch/mips/loongson/common/pci.c ++++ b/arch/mips/loongson/common/pci.c +@@ -50,11 +50,11 @@ static void __init setup_pcimap(void) + LOONGSON_PCIMAP_WIN(0, 0); + + /* +- * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M] ++ * PCI-DMA to local mapping: [2G,4G] -> [0M,2G] + */ + LOONGSON_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */ +- /* size: 256M, burst transmission, pre-fetch enable, 64bit */ +- LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul; ++ /* size: 2G, burst transmission, pre-fetch enable, 64bit */ ++ LOONGSON_PCI_HIT0_SEL_L = 0x8000000cul; + LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful; + LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */ + LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul; +diff --git a/arch/mips/loongson/common/serial.c b/arch/mips/loongson/common/serial.c +index 5f2b78a..c828600 100644 +--- a/arch/mips/loongson/common/serial.c ++++ b/arch/mips/loongson/common/serial.c +@@ -10,6 +10,7 @@ + * Author: Wu Zhangjin (wuzhangjin@gmail.com) + */ + ++#include <linux/module.h> + #include <linux/io.h> + #include <linux/init.h> + #include <linux/serial_8250.h> +@@ -19,58 +20,44 @@ + #include <loongson.h> + #include <machine.h> + +-#define PORT(int) \ ++#define PORT(int, base_baud, io_type, port) \ + { \ + .irq = int, \ +- .uartclk = 1843200, \ +- .iotype = UPIO_PORT, \ ++ .uartclk = base_baud, \ ++ .iotype = io_type, \ + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ + .regshift = 0, \ ++ .iobase = port, \ + } + +-#define PORT_M(int) \ +-{ \ +- .irq = MIPS_CPU_IRQ_BASE + (int), \ +- .uartclk = 3686400, \ +- .iotype = UPIO_MEM, \ +- .membase = (void __iomem *)NULL, \ +- .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ +- .regshift = 0, \ +-} +- +-static struct plat_serial8250_port uart8250_data[][2] = { +- [MACH_LOONGSON_UNKNOWN] {}, +- [MACH_LEMOTE_FL2E] {PORT(4), {} }, +- [MACH_LEMOTE_FL2F] {PORT(3), {} }, +- [MACH_LEMOTE_ML2F7] {PORT_M(3), {} }, +- [MACH_LEMOTE_YL2F89] {PORT_M(3), {} }, +- [MACH_DEXXON_GDIUM2F10] {PORT_M(3), {} }, +- [MACH_LEMOTE_NAS] {PORT_M(3), {} }, +- [MACH_LEMOTE_LL2F] {PORT(3), {} }, +- [MACH_LOONGSON_END] {}, ++static struct plat_serial8250_port uart8250_data[] = { ++ /* ttyS0: cpu_uart0 Yeeloong, Gdium, UNAS, ... */ ++ PORT((MIPS_CPU_IRQ_BASE + 3), 3686400, UPIO_MEM, 0x3f8), ++ /* ttyS1: sb_uart1 2E */ ++ PORT(4, 1843200, UPIO_PORT, 0x3f8), ++ /* ttyS2: sb_uart2 fuloong2f */ ++ PORT(3, 1843200, UPIO_PORT, 0x2f8), ++ {}, + }; + + static struct platform_device uart8250_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, ++ .dev = { ++ .platform_data = uart8250_data, ++ }, + }; + + static int __init serial_init(void) + { +- unsigned char iotype; +- +- iotype = uart8250_data[mips_machtype][0].iotype; +- +- if (UPIO_MEM == iotype) +- uart8250_data[mips_machtype][0].membase = +- (void __iomem *)_loongson_uart_base; +- else if (UPIO_PORT == iotype) +- uart8250_data[mips_machtype][0].iobase = +- loongson_uart_base - LOONGSON_PCIIO_BASE; +- +- uart8250_device.dev.platform_data = uart8250_data[mips_machtype]; ++ uart8250_data[0].membase = (void __iomem *)ioremap_nocache( ++ LOONGSON_LIO1_BASE + uart8250_data[0].iobase, 8); + +- return platform_device_register(&uart8250_device); ++ platform_device_register(&uart8250_device); ++ return 0; + } + + device_initcall(serial_init); ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("liu shiwei <liushiwei@anheng.com.cn>"); ++MODULE_DESCRIPTION("loongson serial"); +diff --git a/arch/mips/loongson/common/time.c b/arch/mips/loongson/common/time.c +index 262a1f6..eebbeef 100644 +--- a/arch/mips/loongson/common/time.c ++++ b/arch/mips/loongson/common/time.c +@@ -10,6 +10,8 @@ + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ ++#include <linux/rtc.h> ++ + #include <asm/mc146818-time.h> + #include <asm/time.h> + +@@ -24,8 +26,81 @@ void __init plat_time_init(void) + setup_mfgpt0_timer(); + } + ++#ifdef CONFIG_LOONGSON_MC146818 + void read_persistent_clock(struct timespec *ts) + { + ts->tv_sec = mc146818_get_cmos_time(); + ts->tv_nsec = 0; + } ++#else ++ ++/* If no CMOS RTC, use the one below */ ++ ++/* ++ * Cloned from drivers/rtc/hctosys.c ++ * ++ * If CONFIG_RTC_HCTOSYS=y is enabled, the system time can be set from the ++ * hardware clock(when boot and resuming from suspend), this may be also done ++ * (duplicately) by the timekeeper, which may need to be avoided(TODO). ++ * ++ * read_persistent_clock() may be useful in some places, e.g. there is not ++ * peristent clock in the system, we can use this to recover the system time. ++ * ++ * Note: The device indicated by CONFIG_RTC_HCTOSYS_DEVICE must be the one ++ * created by the RTC driver. Use Gdium as an example, We must disable the ++ * rt_cmos driver If we want to use the rtc_m41t80 driver for ++ * CONFIG_RTC_HCTOSYS_DEVICE is configured as /dev/rtc0, if rtc_cmos is ++ * enabled, rtc_cmos driver will be used, but it is not supported by Gdium. ++ * So, for Gdium, please ensure "# CONFIG_RTC_DRV_CMOS is not set" ++ */ ++ ++#ifdef CONFIG_RTC_HCTOSYS ++void read_persistent_clock(struct timespec *ts) ++{ ++ int err = -ENODEV; ++ struct rtc_time tm; ++ struct rtc_device *rtc; ++ ++ /* We can not access the RTC device before it is initialized ... */ ++ if (rtc_hctosys_ret != 0) { ++ ts->tv_sec = 0; ++ ts->tv_nsec = 0; ++ return; ++ } ++ ++ rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE); ++ ++ if (rtc == NULL) { ++ pr_err("%s: unable to open rtc device (%s)\n", ++ __FILE__, CONFIG_RTC_HCTOSYS_DEVICE); ++ goto err_open; ++ } ++ ++ err = rtc_read_time(rtc, &tm); ++ if (err) { ++ dev_err(rtc->dev.parent, ++ "hctosys: unable to read the hardware clock\n"); ++ goto err_read; ++ ++ } ++ ++ err = rtc_valid_tm(&tm); ++ if (err) { ++ dev_err(rtc->dev.parent, ++ "hctosys: invalid date/time\n"); ++ goto err_invalid; ++ } ++ ++ ts->tv_nsec = NSEC_PER_SEC >> 1, ++ rtc_tm_to_time(&tm, &ts->tv_sec); ++ ++err_invalid: ++err_read: ++ rtc_class_close(rtc); ++ ++err_open: ++ rtc_hctosys_ret = err; ++} ++#endif /* CONFIG_RTC_HCTOSYS */ ++ ++#endif /* !CONFIG_LOONGSON_MC146818 */ +diff --git a/arch/mips/loongson/common/uart_base.c b/arch/mips/loongson/common/uart_base.c +deleted file mode 100644 +index e192ad0..0000000 +--- a/arch/mips/loongson/common/uart_base.c ++++ /dev/null +@@ -1,45 +0,0 @@ +-/* +- * Copyright (C) 2009 Lemote Inc. +- * Author: Wu Zhangjin, wuzhangjin@gmail.com +- * +- * This program is free software; you can redistribute it and/or modify it +- * under the terms of the GNU General Public License as published by the +- * Free Software Foundation; either version 2 of the License, or (at your +- * option) any later version. +- */ +- +-#include <linux/module.h> +-#include <asm/bootinfo.h> +- +-#include <loongson.h> +- +-/* ioremapped */ +-unsigned long _loongson_uart_base; +-EXPORT_SYMBOL(_loongson_uart_base); +-/* raw */ +-unsigned long loongson_uart_base; +-EXPORT_SYMBOL(loongson_uart_base); +- +-void prom_init_loongson_uart_base(void) +-{ +- switch (mips_machtype) { +- case MACH_LEMOTE_FL2E: +- loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8; +- break; +- case MACH_LEMOTE_FL2F: +- case MACH_LEMOTE_LL2F: +- loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8; +- break; +- case MACH_LEMOTE_ML2F7: +- case MACH_LEMOTE_YL2F89: +- case MACH_DEXXON_GDIUM2F10: +- case MACH_LEMOTE_NAS: +- default: +- /* The CPU provided serial port */ +- loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8; +- break; +- } +- +- _loongson_uart_base = +- (unsigned long)ioremap_nocache(loongson_uart_base, 8); +-} +diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c +index ef5ec8f..232930e 100644 +--- a/arch/mips/loongson/fuloong-2e/irq.c ++++ b/arch/mips/loongson/fuloong-2e/irq.c +@@ -9,7 +9,6 @@ + */ + #include <linux/interrupt.h> + +-#include <asm/irq_cpu.h> + #include <asm/i8259.h> + + #include <loongson.h> +@@ -57,11 +56,6 @@ void __init mach_init_irq(void) + LOONGSON_INTEDGE = LOONGSON_ICU_SYSTEMERR | LOONGSON_ICU_MASTERERR | + LOONGSON_ICU_RETRYERR | LOONGSON_ICU_MBOXES; + +- /* Sets the first-level interrupt dispatcher. */ +- mips_cpu_irq_init(); +- init_i8259_irqs(); +- bonito_irq_init(); +- + /* bonito irq at IP2 */ + setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction); + /* 8259 irq at IP5 */ +diff --git a/arch/mips/loongson/gdium/Makefile b/arch/mips/loongson/gdium/Makefile +new file mode 100644 +index 0000000..f3f4f51 +--- /dev/null ++++ b/arch/mips/loongson/gdium/Makefile +@@ -0,0 +1,6 @@ ++# Makefile for gdium ++ ++obj-y += irq.o reset.o platform.o ++ ++obj-$(CONFIG_MFD_SM501) += sm501-pwm.o ++obj-$(CONFIG_GDIUM_PWM_CLOCK) += gdium-clock.o +diff --git a/arch/mips/loongson/gdium/gdium-clock.c b/arch/mips/loongson/gdium/gdium-clock.c +new file mode 100644 +index 0000000..fdbf42a +--- /dev/null ++++ b/arch/mips/loongson/gdium/gdium-clock.c +@@ -0,0 +1,234 @@ ++/* ++ * Doesn't work really well. When used, the clocksource is producing ++ * bad timings and the clockevent can't be used (don't have one shot feature ++ * thus can't switch on the fly and the pwm is initialised too late to be able ++ * to use it at boot time). ++ */ ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/platform_device.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/pwm.h> ++#include <linux/clocksource.h> ++#include <linux/debugfs.h> ++#include <asm/irq_cpu.h> ++#include <asm/mipsregs.h> ++#include <asm/mips-boards/bonito64.h> ++#include <asm/time.h> ++ ++#include <loongson.h> ++ ++#define CLOCK_PWM 1 ++#define CLOCK_PWM_FREQ 1500000 /* Freq in Hz */ ++#define CLOCK_LATCH ((CLOCK_PWM_FREQ + HZ/2) / HZ) ++#define CLOCK_PWM_PERIOD (1000000000/CLOCK_PWM_FREQ) /* period ns */ ++#define CLOCK_PWM_DUTY 50 ++#define CLOCK_PWM_IRQ (MIPS_CPU_IRQ_BASE + 4) ++ ++static const char drv_name[] = "gdium-clock"; ++ ++static struct pwm_device *clock_pwm; ++ ++static DEFINE_SPINLOCK(clock_pwm_lock); ++static uint64_t clock_tick; ++ ++static irqreturn_t gdium_pwm_clock_interrupt(int irq, void *dev_id) ++{ ++ struct clock_event_device *cd = dev_id; ++ unsigned long flag; ++ ++ spin_lock_irqsave(&clock_pwm_lock, flag); ++ clock_tick++; ++ /* wait intn2 to finish */ ++ do { ++ LOONGSON_INTENCLR = (1 << 13); ++ } while (LOONGSON_INTISR & (1 << 13)); ++ spin_unlock_irqrestore(&clock_pwm_lock, flag); ++ ++ if (cd && cd->event_handler) ++ cd->event_handler(cd); ++ ++ return IRQ_HANDLED; ++} ++ ++static cycle_t gdium_pwm_clock_read(struct clocksource *cs) ++{ ++ unsigned long flag; ++ uint32_t jifs; ++ uint64_t ticks; ++ ++ spin_lock_irqsave(&clock_pwm_lock, flag); ++ jifs = jiffies; ++ ticks = clock_tick; ++ spin_unlock_irqrestore(&clock_pwm_lock, flag); ++ /* return (cycle_t)ticks; */ ++ return (cycle_t)(CLOCK_LATCH * jifs); ++} ++ ++static struct clocksource gdium_pwm_clock_clocksource = { ++ .name = "gdium_csrc", ++ .read = gdium_pwm_clock_read, ++ .mask = CLOCKSOURCE_MASK(64), ++ .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_MUST_VERIFY, ++ .shift = 20, ++}; ++ ++/* Debug fs */ ++static int gdium_pwm_clock_show(struct seq_file *s, void *p) ++{ ++ unsigned long flag; ++ uint64_t ticks; ++ ++ spin_lock_irqsave(&clock_pwm_lock, flag); ++ ticks = clock_tick; ++ spin_unlock_irqrestore(&clock_pwm_lock, flag); ++ seq_printf(s, "%lld\n", ticks); ++ return 0; ++} ++ ++static int gdium_pwm_clock_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, gdium_pwm_clock_show, inode->i_private); ++} ++ ++static const struct file_operations gdium_pwm_clock_fops = { ++ .open = gdium_pwm_clock_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++ .owner = THIS_MODULE, ++}; ++static struct dentry *debugfs_file; ++ ++static void gdium_pwm_clock_set_mode(enum clock_event_mode mode, ++ struct clock_event_device *evt) ++{ ++ /* Nothing to do ... */ ++} ++ ++static struct clock_event_device gdium_pwm_clock_cevt = { ++ .name = "gdium_cevt", ++ .features = CLOCK_EVT_FEAT_PERIODIC, ++ /* .mult, .shift, .max_delta_ns and .min_delta_ns left uninitialized */ ++ .rating = 299, ++ .irq = CLOCK_PWM_IRQ, ++ .set_mode = gdium_pwm_clock_set_mode, ++}; ++ ++static struct platform_device_id platform_device_ids[] = { ++ { ++ .name = "gdium-pwmclk", ++ }, ++ {} ++}; ++MODULE_DEVICE_TABLE(platform, platform_device_ids); ++ ++static struct platform_driver gdium_pwm_clock_driver = { ++ .driver = { ++ .name = drv_name, ++ .owner = THIS_MODULE, ++ }, ++ .id_table = platform_device_ids, ++}; ++ ++static int gdium_pwm_clock_drvinit(void) ++{ ++ int ret; ++ struct clocksource *cs = &gdium_pwm_clock_clocksource; ++ struct clock_event_device *cd = &gdium_pwm_clock_cevt; ++ unsigned int cpu = smp_processor_id(); ++ ++ clock_tick = 0; ++ ++ clock_pwm = pwm_request(CLOCK_PWM, drv_name); ++ if (clock_pwm == NULL) { ++ pr_err("unable to request PWM for Gdium clock\n"); ++ return -EBUSY; ++ } ++ ret = pwm_config(clock_pwm, CLOCK_PWM_DUTY, CLOCK_PWM_PERIOD); ++ if (ret) { ++ pr_err("unable to configure PWM for Gdium clock\n"); ++ goto err_pwm_request; ++ } ++ ret = pwm_enable(clock_pwm); ++ if (ret) { ++ pr_err("unable to enable PWM for Gdium clock\n"); ++ goto err_pwm_request; ++ } ++ ++ cd->cpumask = cpumask_of(cpu); ++ ++ cd->shift = 22; ++ cd->mult = div_sc(CLOCK_PWM_FREQ, NSEC_PER_SEC, cd->shift); ++ cd->max_delta_ns = clockevent_delta2ns(0x7FFF, cd); ++ cd->min_delta_ns = clockevent_delta2ns(0xF, cd); ++ clockevents_register_device(&gdium_pwm_clock_cevt); ++ ++ /* SM501 PWM1 connected to intn2 <->ip4 */ ++ LOONGSON_INTPOL = (1 << 13); ++ LOONGSON_INTEDGE &= ~(1 << 13); ++ ret = request_irq(CLOCK_PWM_IRQ, gdium_pwm_clock_interrupt, IRQF_DISABLED, drv_name, &gdium_pwm_clock_cevt); ++ if (ret) { ++ pr_err("Can't claim irq\n"); ++ goto err_pwm_disable; ++ } ++ ++ cs->rating = 200; ++ cs->mult = clocksource_hz2mult(CLOCK_PWM_FREQ, cs->shift); ++ ret = clocksource_register(&gdium_pwm_clock_clocksource); ++ if (ret) { ++ pr_err("Can't register clocksource\n"); ++ goto err_irq; ++ } ++ pr_info("Clocksource registered with shift %d and mult %d\n", ++ cs->shift, cs->mult); ++ ++ debugfs_file = debugfs_create_file(drv_name, S_IFREG | S_IRUGO, ++ NULL, NULL, &gdium_pwm_clock_fops); ++ ++ return 0; ++ ++err_irq: ++ free_irq(CLOCK_PWM_IRQ, &gdium_pwm_clock_cevt); ++err_pwm_disable: ++ pwm_disable(clock_pwm); ++err_pwm_request: ++ pwm_free(clock_pwm); ++ return ret; ++} ++ ++static void gdium_pwm_clock_drvexit(void) ++{ ++ free_irq(CLOCK_PWM_IRQ, &gdium_pwm_clock_cevt); ++ pwm_disable(clock_pwm); ++ pwm_free(clock_pwm); ++} ++ ++ ++static int __devinit gdium_pwm_clock_init(void) ++{ ++ int ret = gdium_pwm_clock_drvinit(); ++ ++ if (ret) { ++ pr_err("Fail to register gdium clock driver\n"); ++ return ret; ++ } ++ ++ return platform_driver_register(&gdium_pwm_clock_driver); ++} ++ ++static void __exit gdium_pwm_clock_cleanup(void) ++{ ++ gdium_pwm_clock_drvexit(); ++ platform_driver_unregister(&gdium_pwm_clock_driver); ++} ++ ++module_init(gdium_pwm_clock_init); ++module_exit(gdium_pwm_clock_cleanup); ++ ++MODULE_AUTHOR("Arnaud Patard <apatard@mandriva.com>"); ++MODULE_DESCRIPTION("Gdium PWM clock driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:gdium-pwmclk"); +diff --git a/arch/mips/loongson/gdium/irq.c b/arch/mips/loongson/gdium/irq.c +new file mode 100644 +index 0000000..2415d20 +--- /dev/null ++++ b/arch/mips/loongson/gdium/irq.c +@@ -0,0 +1,55 @@ ++/* ++ * Copyright (C) 2007 Lemote Inc. ++ * Author: Fuxin Zhang, zhangfx@lemote.com ++ * ++ * Copyright (c) 2010 yajin <yajin@vm-kernel.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/interrupt.h> ++#include <linux/module.h> ++ ++#include <loongson.h> ++#include <machine.h> ++ ++#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* cpu timer */ ++#define LOONGSON_NORTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 6) /* bonito */ ++#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 3) /* cpu serial port */ ++ ++void mach_irq_dispatch(unsigned int pending) ++{ ++ if (pending & CAUSEF_IP7) ++ do_IRQ(LOONGSON_TIMER_IRQ); ++ else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */ ++ do_perfcnt_IRQ(); ++ bonito_irqdispatch(); ++ } else if (pending & CAUSEF_IP3) /* CPU UART */ ++ do_IRQ(LOONGSON_UART_IRQ); ++#if defined(CONFIG_GDIUM_PWM_CLOCK) || defined(CONFIG_GDIUM_PWM_CLOCK_MODULE) ++ else if (pending & CAUSEF_IP4) /* SM501 PWM clock */ ++ do_IRQ(MIPS_CPU_IRQ_BASE + 4); ++#endif ++ else ++ spurious_interrupt(); ++} ++ ++static irqreturn_t ip6_action(int cpl, void *dev_id) ++{ ++ return IRQ_HANDLED; ++} ++ ++struct irqaction ip6_irqaction = { ++ .handler = ip6_action, ++ .name = "cascade", ++ .flags = IRQF_SHARED, ++}; ++ ++void __init mach_init_irq(void) ++{ ++ /* setup north bridge irq (bonito) */ ++ setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction); ++} +diff --git a/arch/mips/loongson/gdium/platform.c b/arch/mips/loongson/gdium/platform.c +new file mode 100644 +index 0000000..ffafba4 +--- /dev/null ++++ b/arch/mips/loongson/gdium/platform.c +@@ -0,0 +1,135 @@ ++/* ++ * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/init.h> ++#include <linux/kernel.h> ++#include <linux/platform_device.h> ++#include <linux/pwm_backlight.h> ++#include <linux/i2c.h> ++#include <linux/i2c-gpio.h> ++ ++#define GDIUM_GPIO_BASE 224 ++ ++static struct i2c_board_info __initdata sm502dev_i2c_devices[] = { ++ { ++ I2C_BOARD_INFO("lm75", 0x48), ++ }, ++ { ++ I2C_BOARD_INFO("m41t83", 0x68), ++ }, ++ { ++ I2C_BOARD_INFO("gdium-laptop", 0x40), ++ }, ++}; ++ ++static int sm502dev_backlight_init(struct device *dev) ++{ ++ /* Add gpio request stuff here */ ++ return 0; ++} ++ ++static void sm502dev_backlight_exit(struct device *dev) ++{ ++ /* Add gpio free stuff here */ ++} ++ ++static struct platform_pwm_backlight_data backlight_data = { ++ .pwm_id = 0, ++ .max_brightness = 15, ++ .dft_brightness = 8, ++ .pwm_period_ns = 50000, /* 20 kHz */ ++ .init = sm502dev_backlight_init, ++ .exit = sm502dev_backlight_exit, ++}; ++ ++static struct platform_device backlight = { ++ .name = "pwm-backlight", ++ .dev = { ++ .platform_data = &backlight_data, ++ }, ++ .id = -1, ++}; ++ ++/* ++ * Warning this stunt is very dangerous ++ * as the sm501 gpio have dynamic numbers... ++ */ ++/* bus 0 is the one for the ST7, DS75 etc... */ ++static struct i2c_gpio_platform_data i2c_gpio0_data = { ++#if CONFIG_GDIUM_VERSION > 2 ++ .sda_pin = GDIUM_GPIO_BASE + 13, ++ .scl_pin = GDIUM_GPIO_BASE + 6, ++#else ++ .sda_pin = 192+15, ++ .scl_pin = 192+14, ++#endif ++ .udelay = 5, ++ .timeout = HZ / 10, ++ .sda_is_open_drain = 0, ++ .scl_is_open_drain = 0, ++}; ++ ++static struct platform_device i2c_gpio0_device = { ++ .name = "i2c-gpio", ++ .id = 0, ++ .dev = { .platform_data = &i2c_gpio0_data, }, ++}; ++ ++/* bus 1 is for the CRT/VGA external screen */ ++static struct i2c_gpio_platform_data i2c_gpio1_data = { ++ .sda_pin = GDIUM_GPIO_BASE + 10, ++ .scl_pin = GDIUM_GPIO_BASE + 9, ++ .udelay = 5, ++ .timeout = HZ / 10, ++ .sda_is_open_drain = 0, ++ .scl_is_open_drain = 0, ++}; ++ ++static struct platform_device i2c_gpio1_device = { ++ .name = "i2c-gpio", ++ .id = 1, ++ .dev = { .platform_data = &i2c_gpio1_data, }, ++}; ++ ++static struct platform_device gdium_clock = { ++ .name = "gdium-pwmclk", ++ .id = -1, ++}; ++ ++static struct platform_device *devices[] __initdata = { ++ &i2c_gpio0_device, ++ &i2c_gpio1_device, ++ &backlight, ++ &gdium_clock, ++}; ++ ++static int __init gdium_platform_devices_setup(void) ++{ ++ int ret; ++ ++ pr_info("Registering gdium platform devices\n"); ++ ++ ret = i2c_register_board_info(0, sm502dev_i2c_devices, ++ ARRAY_SIZE(sm502dev_i2c_devices)); ++ ++ if (ret != 0) { ++ pr_info("Error while registering platform devices: %d\n", ret); ++ return ret; ++ } ++ ++ platform_add_devices(devices, ARRAY_SIZE(devices)); ++ ++ return 0; ++} ++ ++/* ++ * some devices are on the pwm stuff which is behind the mfd which is ++ * behind the pci bus so arch_initcall can't work because too early ++ */ ++late_initcall(gdium_platform_devices_setup); +diff --git a/arch/mips/loongson/gdium/reset.c b/arch/mips/loongson/gdium/reset.c +new file mode 100644 +index 0000000..8289f95 +--- /dev/null ++++ b/arch/mips/loongson/gdium/reset.c +@@ -0,0 +1,22 @@ ++/* Board-specific reboot/shutdown routines ++ * ++ * Copyright (C) 2010 yajin <yajin@vm-kernel.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++#include <loongson.h> ++ ++void mach_prepare_shutdown(void) ++{ ++ LOONGSON_GPIOIE &= ~(1<<1); ++ LOONGSON_GPIODATA |= (1<<1); ++} ++ ++void mach_prepare_reboot(void) ++{ ++ LOONGSON_GPIOIE &= ~(1<<2); ++ LOONGSON_GPIODATA &= ~(1<<2); ++} +diff --git a/arch/mips/loongson/gdium/sm501-pwm.c b/arch/mips/loongson/gdium/sm501-pwm.c +new file mode 100644 +index 0000000..5af3b23 +--- /dev/null ++++ b/arch/mips/loongson/gdium/sm501-pwm.c +@@ -0,0 +1,465 @@ ++/* ++ * SM501 PWM clock ++ * Copyright (C) 2009-2010 Arnaud Patard <apatard@mandriva.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/errno.h> ++#include <linux/init.h> ++#include <linux/interrupt.h> ++#include <linux/platform_device.h> ++#include <linux/slab.h> ++#include <linux/pwm.h> ++#include <linux/sm501.h> ++#include <linux/sm501-regs.h> ++#include <linux/debugfs.h> ++#include <linux/seq_file.h> ++ ++static const char drv_name[] = "sm501-pwm"; ++ ++#define INPUT_CLOCK 96 /* MHz */ ++#define PWM_COUNT 3 ++ ++#define SM501PWM_HIGH_COUNTER (1<<20) ++#define SM501PWM_LOW_COUNTER (1<<8) ++#define SM501PWM_CLOCK_DIVIDE (1>>4) ++#define SM501PWM_IP (1<<3) ++#define SM501PWM_I (1<<2) ++#define SM501PWM_E (1<<0) ++ ++struct pwm_device { ++ struct list_head node; ++ struct device *dev; ++ void __iomem *regs; ++ int duty_ns; ++ int period_ns; ++ char enabled; ++ void (*handler)(struct pwm_device *pwm); ++ ++ const char *label; ++ unsigned int use_count; ++ unsigned int pwm_id; ++}; ++ ++struct sm501pwm_info { ++ void __iomem *regs; ++ int irq; ++ struct resource *res; ++ struct device *dev; ++ struct dentry *debugfs; ++ ++ struct pwm_device pwm[3]; ++}; ++ ++int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) ++{ ++ unsigned int high, low, divider; ++ int divider1, divider2; ++ unsigned long long delay; ++ ++ if (!pwm || !pwm->regs || period_ns == 0 || duty_ns > period_ns) ++ return -EINVAL; ++ ++ /* Get delay ++ * We're loosing some precision but multiplying then dividing ++ * will overflow ++ */ ++ if (period_ns > 1000) { ++ delay = period_ns / 1000; ++ delay *= INPUT_CLOCK; ++ } else { ++ delay = period_ns * 96; ++ delay /= 1000; ++ } ++ ++ /* Get the number of clock low and high */ ++ high = delay * duty_ns / period_ns; ++ low = delay - high; ++ ++ /* Get divider to make 'low' and 'high' fit into 12 bits */ ++ /* No need to say that the divider must be >= 0 */ ++ divider1 = fls(low)-12; ++ divider2 = fls(high)-12; ++ ++ if (divider1 < 0) ++ divider1 = 0; ++ if (divider2 < 0) ++ divider2 = 0; ++ ++ divider = max(divider1, divider2); ++ ++ low >>= divider; ++ high >>= divider; ++ ++ pwm->duty_ns = duty_ns; ++ pwm->period_ns = period_ns; ++ ++ writel((high<<20)|(low<<8)|(divider<<4), pwm->regs); ++ return 0; ++} ++EXPORT_SYMBOL(pwm_config); ++ ++int pwm_enable(struct pwm_device *pwm) ++{ ++ u32 reg; ++ ++ if (!pwm) ++ return -EINVAL; ++ ++ switch (pwm->pwm_id) { ++ case 0: ++ sm501_configure_gpio(pwm->dev->parent, 29, 1); ++ break; ++ case 1: ++ sm501_configure_gpio(pwm->dev->parent, 30, 1); ++ break; ++ case 2: ++ sm501_configure_gpio(pwm->dev->parent, 31, 1); ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ reg = readl(pwm->regs); ++ reg |= (SM501PWM_IP | SM501PWM_E); ++ writel(reg, pwm->regs); ++ pwm->enabled = 1; ++ ++ return 0; ++} ++EXPORT_SYMBOL(pwm_enable); ++ ++void pwm_disable(struct pwm_device *pwm) ++{ ++ u32 reg; ++ ++ if (!pwm) ++ return; ++ ++ reg = readl(pwm->regs); ++ reg &= ~(SM501PWM_IP | SM501PWM_E); ++ writel(reg, pwm->regs); ++ ++ switch (pwm->pwm_id) { ++ case 0: ++ sm501_configure_gpio(pwm->dev->parent, 29, 0); ++ break; ++ case 1: ++ sm501_configure_gpio(pwm->dev->parent, 30, 0); ++ break; ++ case 2: ++ sm501_configure_gpio(pwm->dev->parent, 31, 0); ++ break; ++ default: ++ break; ++ } ++ pwm->enabled = 0; ++} ++EXPORT_SYMBOL(pwm_disable); ++ ++static DEFINE_MUTEX(pwm_lock); ++static LIST_HEAD(pwm_list); ++ ++struct pwm_device *pwm_request(int pwm_id, const char *label) ++{ ++ struct pwm_device *pwm; ++ int found = 0; ++ ++ mutex_lock(&pwm_lock); ++ ++ list_for_each_entry(pwm, &pwm_list, node) { ++ if (pwm->pwm_id == pwm_id && pwm->use_count == 0) { ++ pwm->use_count++; ++ pwm->label = label; ++ found = 1; ++ break; ++ } ++ } ++ ++ mutex_unlock(&pwm_lock); ++ ++ return (found) ? pwm : NULL; ++} ++EXPORT_SYMBOL(pwm_request); ++ ++void pwm_free(struct pwm_device *pwm) ++{ ++ mutex_lock(&pwm_lock); ++ ++ if (pwm->use_count) { ++ pwm->use_count--; ++ pwm->label = NULL; ++ } else ++ dev_warn(pwm->dev, "PWM device already freed\n"); ++ ++ mutex_unlock(&pwm_lock); ++} ++EXPORT_SYMBOL(pwm_free); ++ ++int pwm_int_enable(struct pwm_device *pwm) ++{ ++ unsigned long conf; ++ ++ if (!pwm || !pwm->regs || !pwm->handler) ++ return -EINVAL; ++ ++ conf = readl(pwm->regs); ++ conf |= SM501PWM_I; ++ writel(conf, pwm->regs); ++ return 0; ++} ++EXPORT_SYMBOL(pwm_int_enable); ++ ++int pwm_int_disable(struct pwm_device *pwm) ++{ ++ unsigned long conf; ++ ++ if (!pwm || !pwm->regs || !pwm->handler) ++ return -EINVAL; ++ ++ conf = readl(pwm->regs); ++ conf &= ~SM501PWM_I; ++ writel(conf, pwm->regs); ++ return 0; ++} ++EXPORT_SYMBOL(pwm_int_disable); ++ ++int pwm_set_handler(struct pwm_device *pwm, ++ void (*handler)(struct pwm_device *pwm)) ++{ ++ if (!pwm || !handler) ++ return -EINVAL; ++ pwm->handler = handler; ++ return 0; ++} ++EXPORT_SYMBOL(pwm_set_handler); ++ ++static irqreturn_t sm501pwm_irq(int irq, void *dev_id) ++{ ++ unsigned long value; ++ struct sm501pwm_info *info = (struct sm501pwm_info *)dev_id; ++ struct pwm_device *pwm; ++ int i; ++ ++ value = sm501_modify_reg(info->dev->parent, SM501_IRQ_STATUS, 0, 0); ++ ++ /* Check is the interrupt is for us */ ++ if (value & (1<<22)) { ++ for (i = 0 ; i < PWM_COUNT ; i++) { ++ /* ++ * Find which pwm triggered the interrupt ++ * and ack ++ */ ++ value = readl(info->regs + i*4); ++ if (value & SM501PWM_IP) ++ writel(value | SM501PWM_IP, info->regs + i*4); ++ ++ pwm = &info->pwm[i]; ++ if (pwm->handler) ++ pwm->handler(pwm); ++ } ++ return IRQ_HANDLED; ++ } ++ ++ return IRQ_NONE; ++} ++ ++static void add_pwm(int id, struct sm501pwm_info *info) ++{ ++ struct pwm_device *pwm = &info->pwm[id]; ++ ++ pwm->use_count = 0; ++ pwm->pwm_id = id; ++ pwm->dev = info->dev; ++ pwm->regs = info->regs + id * 4; ++ ++ mutex_lock(&pwm_lock); ++ list_add_tail(&pwm->node, &pwm_list); ++ mutex_unlock(&pwm_lock); ++} ++ ++static void del_pwm(int id, struct sm501pwm_info *info) ++{ ++ struct pwm_device *pwm = &info->pwm[id]; ++ ++ pwm->use_count = 0; ++ pwm->pwm_id = -1; ++ mutex_lock(&pwm_lock); ++ list_del(&pwm->node); ++ mutex_unlock(&pwm_lock); ++} ++ ++/* Debug fs */ ++static int sm501pwm_show(struct seq_file *s, void *p) ++{ ++ struct pwm_device *pwm; ++ ++ mutex_lock(&pwm_lock); ++ list_for_each_entry(pwm, &pwm_list, node) { ++ if (pwm->use_count) { ++ seq_printf(s, "pwm-%d (%12s) %d %d %s\n", ++ pwm->pwm_id, pwm->label, ++ pwm->duty_ns, pwm->period_ns, ++ pwm->enabled ? "on" : "off"); ++ seq_printf(s, " %08x\n", readl(pwm->regs)); ++ } ++ } ++ mutex_unlock(&pwm_lock); ++ ++ return 0; ++} ++ ++static int sm501pwm_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, sm501pwm_show, inode->i_private); ++} ++ ++static const struct file_operations sm501pwm_fops = { ++ .open = sm501pwm_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++ .owner = THIS_MODULE, ++}; ++ ++static int __init sm501pwm_probe(struct platform_device *pdev) ++{ ++ struct sm501pwm_info *info; ++ struct device *dev = &pdev->dev; ++ struct resource *res; ++ int ret = 0; ++ int res_len; ++ int i; ++ ++ info = kzalloc(sizeof(struct sm501pwm_info), GFP_KERNEL); ++ if (!info) { ++ dev_err(dev, "Allocation failure\n"); ++ ret = -ENOMEM; ++ goto err; ++ } ++ info->dev = dev; ++ platform_set_drvdata(pdev, info); ++ ++ /* Get irq number */ ++ info->irq = platform_get_irq(pdev, 0); ++ if (!info->irq) { ++ dev_err(dev, "no irq found\n"); ++ ret = -ENODEV; ++ goto err_alloc; ++ } ++ ++ /* Get regs address */ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (res == NULL) { ++ dev_err(dev, "No memory resource found\n"); ++ ret = -ENODEV; ++ goto err_alloc; ++ } ++ info->res = res; ++ res_len = (res->end - res->start)+1; ++ ++ if (!request_mem_region(res->start, res_len, drv_name)) { ++ dev_err(dev, "Can't request iomem resource\n"); ++ ret = -EBUSY; ++ goto err_alloc; ++ } ++ ++ info->regs = ioremap(res->start, res_len); ++ if (!info->regs) { ++ dev_err(dev, "ioremap failed\n"); ++ ret = -ENOMEM; ++ goto err_mem; ++ } ++ ++ ret = request_irq(info->irq, sm501pwm_irq, IRQF_SHARED, drv_name, info); ++ if (ret != 0) { ++ dev_err(dev, "can't get irq\n"); ++ goto err_map; ++ } ++ ++ ++ sm501_unit_power(info->dev->parent, SM501_GATE_GPIO, 1); ++ ++ for (i = 0; i < 3; i++) ++ add_pwm(i, info); ++ ++ dev_info(dev, "SM501 PWM Found at %lx irq %d\n", ++ (unsigned long)info->res->start, info->irq); ++ ++ info->debugfs = debugfs_create_file("pwm", S_IFREG | S_IRUGO, ++ NULL, info, &sm501pwm_fops); ++ ++ ++ return 0; ++ ++err_map: ++ iounmap(info->regs); ++ ++err_mem: ++ release_mem_region(res->start, res_len); ++ ++err_alloc: ++ kfree(info); ++ platform_set_drvdata(pdev, NULL); ++err: ++ return ret; ++} ++ ++static int sm501pwm_remove(struct platform_device *pdev) ++{ ++ struct sm501pwm_info *info = platform_get_drvdata(pdev); ++ int i; ++ ++ if (info->debugfs) ++ debugfs_remove(info->debugfs); ++ ++ for (i = 0; i < 3; i++) { ++ pwm_disable(&info->pwm[i]); ++ del_pwm(i, info); ++ } ++ ++ sm501_unit_power(info->dev->parent, SM501_GATE_GPIO, 0); ++ sm501_modify_reg(info->dev->parent, SM501_IRQ_STATUS, 0, 1<<22); ++ ++ free_irq(info->irq, info); ++ iounmap(info->regs); ++ release_mem_region(info->res->start, ++ (info->res->end - info->res->start)+1); ++ kfree(info); ++ platform_set_drvdata(pdev, NULL); ++ ++ return 0; ++} ++ ++static struct platform_driver sm501pwm_driver = { ++ .probe = sm501pwm_probe, ++ .remove = sm501pwm_remove, ++ .driver = { ++ .name = drv_name, ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __devinit sm501pwm_init(void) ++{ ++ return platform_driver_register(&sm501pwm_driver); ++} ++ ++static void __exit sm501pwm_cleanup(void) ++{ ++ platform_driver_unregister(&sm501pwm_driver); ++} ++ ++module_init(sm501pwm_init); ++module_exit(sm501pwm_cleanup); ++ ++MODULE_AUTHOR("Arnaud Patard <apatard@mandriva.com>"); ++MODULE_DESCRIPTION("SM501 PWM driver"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("platform:sm501-pwm"); +diff --git a/arch/mips/loongson/lemote-2f/Makefile b/arch/mips/loongson/lemote-2f/Makefile +index 4f9eaa3..f945bd7a 100644 +--- a/arch/mips/loongson/lemote-2f/Makefile ++++ b/arch/mips/loongson/lemote-2f/Makefile +@@ -2,7 +2,7 @@ + # Makefile for lemote loongson2f family machines + # + +-obj-y += clock.o machtype.o irq.o reset.o ec_kb3310b.o ++obj-y += clock.o machtype.o irq.o reset.o ec_kb3310b.o platform.o + + # + # Suspend Support +diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c +index 6f8682e..2d54037 100644 +--- a/arch/mips/loongson/lemote-2f/irq.c ++++ b/arch/mips/loongson/lemote-2f/irq.c +@@ -11,9 +11,7 @@ + #include <linux/interrupt.h> + #include <linux/module.h> + +-#include <asm/irq_cpu.h> + #include <asm/i8259.h> +-#include <asm/mipsregs.h> + + #include <loongson.h> + #include <machine.h> +@@ -117,11 +115,6 @@ void __init mach_init_irq(void) + LOONGSON_INTPOL = LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1; + LOONGSON_INTEDGE &= ~(LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1); + +- /* Sets the first-level interrupt dispatcher. */ +- mips_cpu_irq_init(); +- init_i8259_irqs(); +- bonito_irq_init(); +- + /* setup north bridge irq (bonito) */ + setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction); + /* setup source bridge irq (i8259) */ +diff --git a/arch/mips/loongson/lemote-2f/platform.c b/arch/mips/loongson/lemote-2f/platform.c +new file mode 100644 +index 0000000..5316360 +--- /dev/null ++++ b/arch/mips/loongson/lemote-2f/platform.c +@@ -0,0 +1,48 @@ ++/* ++ * Copyright (C) 2009 Lemote Inc. ++ * Author: Wu Zhangjin, wuzhangjin@gmail.com ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/err.h> ++#include <linux/platform_device.h> ++ ++#include <asm/bootinfo.h> ++ ++static struct platform_device yeeloong_pdev = { ++ .name = "yeeloong_laptop", ++ .id = -1, ++}; ++ ++static struct platform_device lynloong_pdev = { ++ .name = "lynloong_pc", ++ .id = -1, ++}; ++ ++static int __init lemote2f_platform_init(void) ++{ ++ struct platform_device *pdev = NULL; ++ ++ switch (mips_machtype) { ++ case MACH_LEMOTE_YL2F89: ++ pdev = &yeeloong_pdev; ++ break; ++ case MACH_LEMOTE_LL2F: ++ pdev = &lynloong_pdev; ++ break; ++ default: ++ break; ++ ++ } ++ ++ if (pdev != NULL) ++ return platform_device_register(pdev); ++ ++ return -ENODEV; ++} ++ ++arch_initcall(lemote2f_platform_init); +diff --git a/arch/mips/loongson/lemote-2f/pm.c b/arch/mips/loongson/lemote-2f/pm.c +index cac4d38..2b6e0ef 100644 +--- a/arch/mips/loongson/lemote-2f/pm.c ++++ b/arch/mips/loongson/lemote-2f/pm.c +@@ -140,10 +140,10 @@ int wakeup_loongson(void) + + void __weak mach_suspend(void) + { +- disable_mfgpt0_counter(); ++ disable_mfgpt_counter(); + } + + void __weak mach_resume(void) + { +- enable_mfgpt0_counter(); ++ enable_mfgpt_counter(); + } +diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c +index 0b4e2e3..60fad2c 100644 +--- a/arch/mips/math-emu/cp1emu.c ++++ b/arch/mips/math-emu/cp1emu.c +@@ -7,6 +7,9 @@ + * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com + * Copyright (C) 2000 MIPS Technologies, Inc. + * ++ * Loongson instruction support ++ * Copyright (C) 2011 Mark H Weaver <mhw@netris.org> ++ * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. +@@ -58,6 +61,14 @@ + #endif + #define __mips 4 + ++#ifdef __loongson_fp ++#undef __loongson_fp ++#endif ++#if __mips >= 4 && __mips != 32 ++/* Include support for Loongson floating point instructions */ ++#define __loongson_fp 1 ++#endif ++ + /* Function which emulates a floating point instruction. */ + + static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, +@@ -67,6 +78,10 @@ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, + static int fpux_emu(struct pt_regs *, + struct mips_fpu_struct *, mips_instruction, void *__user *); + #endif ++#ifdef __loongson_fp ++static int loongson_spec2_emu(struct pt_regs *, ++ struct mips_fpu_struct *, mips_instruction, void *__user *); ++#endif + + /* Further private data for which no space exists in mips_fpu_struct */ + +@@ -896,6 +911,14 @@ static inline int cop1_64bit(struct pt_regs *xcp) + #define DPFROMREG(dp, x) DIFROMREG((dp).bits, x) + #define DPTOREG(dp, x) DITOREG((dp).bits, x) + ++/* Support for Loongson paired single floating-point format */ ++#define PSIFROMREG(si1, si2, x) ({ u64 di; DIFROMREG(di, x); \ ++ (si1) = (u32)di; (si2) = (u32)(di >> 32); }) ++#define PSITOREG(si1, si2, x) DITOREG((si1) | ((u64)(si2) << 32), x) ++ ++#define PSPFROMREG(sp1, sp2, x) PSIFROMREG((sp1).bits, (sp2).bits, x) ++#define PSPTOREG(sp1, sp2, x) PSITOREG((sp1).bits, (sp2).bits, x) ++ + /* + * Emulate the single floating point instruction pointed at by EPC. + * Two instructions if the instruction is in a branch delay slot. +@@ -1291,6 +1314,15 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + break; + #endif + ++#ifdef __loongson_fp ++ case spec2_op:{ ++ int sig = loongson_spec2_emu(xcp, ctx, ir, fault_addr); ++ if (sig) ++ return sig; ++ break; ++ } ++#endif ++ + default: + sigill: + return SIGILL; +@@ -1370,6 +1402,172 @@ DEF3OP(msub, dp, ieee754dp_mul, ieee754dp_sub, ); + DEF3OP(nmadd, dp, ieee754dp_mul, ieee754dp_add, ieee754dp_neg); + DEF3OP(nmsub, dp, ieee754dp_mul, ieee754dp_sub, ieee754dp_neg); + ++#ifdef __loongson_fp ++static int loongson_spec2_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, ++ mips_instruction ir, void *__user *fault_addr) ++{ ++ int rfmt; /* resulting format */ ++ unsigned rcsr = 0; /* resulting csr */ ++ union { ++ ieee754dp d; ++ struct { ++ ieee754sp s; ++ ieee754sp s2; ++ }; ++ } rv; /* resulting value */ ++ ++ /* XXX maybe add a counter for loongson spec2 fp instructions? */ ++ /* MIPS_FPU_EMU_INC_STATS(cp1xops); */ ++ ++ switch (rfmt = (MIPSInst_FFMT(ir) & 0xf)) { ++ case s_fmt:{ ++ ieee754sp(*handler) (ieee754sp, ieee754sp, ieee754sp); ++ ieee754sp fd, fs, ft; ++ ++ switch (MIPSInst_FUNC(ir)) { ++ case loongson_madd_op: ++ handler = fpemu_sp_madd; ++ goto scoptop; ++ case loongson_msub_op: ++ handler = fpemu_sp_msub; ++ goto scoptop; ++ case loongson_nmadd_op: ++ handler = fpemu_sp_nmadd; ++ goto scoptop; ++ case loongson_nmsub_op: ++ handler = fpemu_sp_nmsub; ++ goto scoptop; ++ ++ scoptop: ++ SPFROMREG(fd, MIPSInst_FD(ir)); ++ SPFROMREG(fs, MIPSInst_FS(ir)); ++ SPFROMREG(ft, MIPSInst_FT(ir)); ++ rv.s = (*handler) (fd, fs, ft); ++ ++ copcsr: ++ if (ieee754_cxtest(IEEE754_INEXACT)) ++ rcsr |= FPU_CSR_INE_X | FPU_CSR_INE_S; ++ if (ieee754_cxtest(IEEE754_UNDERFLOW)) ++ rcsr |= FPU_CSR_UDF_X | FPU_CSR_UDF_S; ++ if (ieee754_cxtest(IEEE754_OVERFLOW)) ++ rcsr |= FPU_CSR_OVF_X | FPU_CSR_OVF_S; ++ if (ieee754_cxtest(IEEE754_INVALID_OPERATION)) ++ rcsr |= FPU_CSR_INV_X | FPU_CSR_INV_S; ++ ++ break; ++ ++ default: ++ return SIGILL; ++ } ++ break; ++ } ++ ++ case d_fmt:{ ++ ieee754dp(*handler) (ieee754dp, ieee754dp, ieee754dp); ++ ieee754dp fd, fs, ft; ++ ++ switch (MIPSInst_FUNC(ir)) { ++ case loongson_madd_op: ++ handler = fpemu_dp_madd; ++ goto dcoptop; ++ case loongson_msub_op: ++ handler = fpemu_dp_msub; ++ goto dcoptop; ++ case loongson_nmadd_op: ++ handler = fpemu_dp_nmadd; ++ goto dcoptop; ++ case loongson_nmsub_op: ++ handler = fpemu_dp_nmsub; ++ goto dcoptop; ++ ++ dcoptop: ++ DPFROMREG(fd, MIPSInst_FD(ir)); ++ DPFROMREG(fs, MIPSInst_FS(ir)); ++ DPFROMREG(ft, MIPSInst_FT(ir)); ++ rv.d = (*handler) (fd, fs, ft); ++ goto copcsr; ++ ++ default: ++ return SIGILL; ++ } ++ break; ++ } ++ ++ case ps_fmt:{ ++ ieee754sp(*handler) (ieee754sp, ieee754sp, ieee754sp); ++ struct _ieee754_csr ieee754_csr_save; ++ ieee754sp fd1, fs1, ft1; ++ ieee754sp fd2, fs2, ft2; ++ ++ switch (MIPSInst_FUNC(ir)) { ++ case loongson_madd_op: ++ handler = fpemu_sp_madd; ++ goto pscoptop; ++ case loongson_msub_op: ++ handler = fpemu_sp_msub; ++ goto pscoptop; ++ case loongson_nmadd_op: ++ handler = fpemu_sp_nmadd; ++ goto pscoptop; ++ case loongson_nmsub_op: ++ handler = fpemu_sp_nmsub; ++ goto pscoptop; ++ ++ pscoptop: ++ PSPFROMREG(fd1, fd2, MIPSInst_FD(ir)); ++ PSPFROMREG(fs1, fs2, MIPSInst_FS(ir)); ++ PSPFROMREG(ft1, ft2, MIPSInst_FT(ir)); ++ rv.s = (*handler) (fd1, fs1, ft1); ++ ieee754_csr_save = ieee754_csr; ++ rv.s2 = (*handler) (fd2, fs2, ft2); ++ ieee754_csr.cx |= ieee754_csr_save.cx; ++ ieee754_csr.sx |= ieee754_csr_save.sx; ++ goto copcsr; ++ ++ default: ++ return SIGILL; ++ } ++ break; ++ } ++ ++ default: ++ return SIGILL; ++ } ++ ++ /* ++ * Update the fpu CSR register for this operation. ++ * If an exception is required, generate a tidy SIGFPE exception, ++ * without updating the result register. ++ * Note: cause exception bits do not accumulate, they are rewritten ++ * for each op; only the flag/sticky bits accumulate. ++ */ ++ ctx->fcr31 = (ctx->fcr31 & ~FPU_CSR_ALL_X) | rcsr; ++ if ((ctx->fcr31 >> 5) & ctx->fcr31 & FPU_CSR_ALL_E) { ++ /*printk ("SIGFPE: fpu csr = %08x\n",ctx->fcr31); */ ++ return SIGFPE; ++ } ++ ++ /* ++ * Now we can safely write the result back to the register file. ++ */ ++ switch (rfmt) { ++ case d_fmt: ++ DPTOREG(rv.d, MIPSInst_FD(ir)); ++ break; ++ case s_fmt: ++ SPTOREG(rv.s, MIPSInst_FD(ir)); ++ break; ++ case ps_fmt: ++ PSPTOREG(rv.s, rv.s2, MIPSInst_FD(ir)); ++ break; ++ default: ++ return SIGILL; ++ } ++ ++ return 0; ++} ++#endif ++ + static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + mips_instruction ir, void *__user *fault_addr) + { +@@ -1463,7 +1661,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + break; + + default: +- return SIGILL; ++ goto SIGILL_unless_prefx_op; + } + break; + } +@@ -1533,7 +1731,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + goto copcsr; + + default: +- return SIGILL; ++ goto SIGILL_unless_prefx_op; + } + break; + } +@@ -1546,6 +1744,11 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + break; + + default: ++ SIGILL_unless_prefx_op: ++ if (MIPSInst_FUNC(ir) == prefx_op) { ++ /* ignore prefx operation */ ++ break; ++ } + return SIGILL; + } + +@@ -1566,7 +1769,12 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + unsigned cond; + union { + ieee754dp d; +- ieee754sp s; ++ struct { ++ ieee754sp s; ++#ifdef __loongson_fp ++ ieee754sp s2; /* for Loongson paired singles */ ++#endif ++ }; + int w; + #ifdef __mips64 + s64 l; +@@ -1638,7 +1846,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + case fmov_op: + /* an easy one */ + SPFROMREG(rv.s, MIPSInst_FS(ir)); +- goto copcsr; ++ break; + + /* binary op on handler */ + scopbop: +@@ -1825,7 +2033,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + case fmov_op: + /* an easy one */ + DPFROMREG(rv.d, MIPSInst_FS(ir)); +- goto copcsr; ++ break; + + /* binary op on handler */ + dcopbop:{ +@@ -1936,6 +2144,83 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + break; + } + ++#ifdef __loongson_fp ++ case ps_fmt:{ /* 6 */ ++ /* Support for Loongson paired single fp instructions */ ++ union { ++ ieee754sp(*b) (ieee754sp, ieee754sp); ++ ieee754sp(*u) (ieee754sp); ++ } handler; ++ ++ switch (MIPSInst_FUNC(ir)) { ++ /* binary ops */ ++ case fadd_op: ++ handler.b = ieee754sp_add; ++ goto pscopbop; ++ case fsub_op: ++ handler.b = ieee754sp_sub; ++ goto pscopbop; ++ case fmul_op: ++ handler.b = ieee754sp_mul; ++ goto pscopbop; ++ ++ /* unary ops */ ++ case fabs_op: ++ handler.u = ieee754sp_abs; ++ goto pscopuop; ++ case fneg_op: ++ handler.u = ieee754sp_neg; ++ goto pscopuop; ++ case fmov_op: ++ /* an easy one */ ++ PSPFROMREG(rv.s, rv.s2, MIPSInst_FS(ir)); ++ break; ++ ++ pscopbop: /* paired binary op handler */ ++ { ++ struct _ieee754_csr ieee754_csr_save; ++ ieee754sp fs1, ft1; ++ ieee754sp fs2, ft2; ++ ++ PSPFROMREG(fs1, fs2, MIPSInst_FS(ir)); ++ PSPFROMREG(ft1, ft2, MIPSInst_FT(ir)); ++ rv.s = (*handler.b) (fs1, ft1); ++ ieee754_csr_save = ieee754_csr; ++ rv.s2 = (*handler.b) (fs2, ft2); ++ ieee754_csr.cx |= ieee754_csr_save.cx; ++ ieee754_csr.sx |= ieee754_csr_save.sx; ++ goto copcsr; ++ } ++ pscopuop: /* paired unary op handler */ ++ { ++ struct _ieee754_csr ieee754_csr_save; ++ ieee754sp fs1; ++ ieee754sp fs2; ++ ++ PSPFROMREG(fs1, fs2, MIPSInst_FS(ir)); ++ rv.s = (*handler.u) (fs1); ++ ieee754_csr_save = ieee754_csr; ++ rv.s2 = (*handler.u) (fs2); ++ ieee754_csr.cx |= ieee754_csr_save.cx; ++ ieee754_csr.sx |= ieee754_csr_save.sx; ++ goto copcsr; ++ } ++ break; ++ ++ default: ++ if (MIPSInst_FUNC(ir) >= fcmp_op) { ++ /* Loongson fp hardware handles all ++ cases of fp compare insns, so we ++ shouldn't have to */ ++ printk ("Loongson paired-single fp compare" ++ " unimplemented in cp1emu.c\n"); ++ } ++ return SIGILL; ++ } ++ break; ++ } ++#endif ++ + case w_fmt:{ + ieee754sp fs; + +@@ -2025,6 +2310,11 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, + DITOREG(rv.l, MIPSInst_FD(ir)); + break; + #endif ++#ifdef __loongson_fp ++ case ps_fmt: ++ PSPTOREG(rv.s, rv.s2, MIPSInst_FD(ir)); ++ break; ++#endif + default: + return SIGILL; + } +diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c +index 44b6dff..e782fae 100644 +--- a/arch/mips/mm/dma-default.c ++++ b/arch/mips/mm/dma-default.c +@@ -336,7 +336,7 @@ int mips_dma_supported(struct device *dev, u64 mask) + return plat_dma_supported(dev, mask); + } + +-void dma_cache_sync(struct device *dev, void *vaddr, size_t size, ++void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction direction) + { + BUG_ON(direction == DMA_NONE); +@@ -345,8 +345,6 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + __dma_sync_virtual(vaddr, size, direction); + } + +-EXPORT_SYMBOL(dma_cache_sync); +- + static struct dma_map_ops mips_default_dma_map_ops = { + .alloc = mips_dma_alloc_coherent, + .free = mips_dma_free_coherent, +diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile +index 137f2a6..b9845dc 100644 +--- a/arch/mips/pci/Makefile ++++ b/arch/mips/pci/Makefile +@@ -29,6 +29,7 @@ obj-$(CONFIG_LASAT) += pci-lasat.o + obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o + obj-$(CONFIG_LEMOTE_FULOONG2E) += fixup-fuloong2e.o ops-loongson2.o + obj-$(CONFIG_LEMOTE_MACH2F) += fixup-lemote2f.o ops-loongson2.o ++obj-$(CONFIG_DEXXON_GDIUM) += fixup-gdium.o ops-loongson2.o + obj-$(CONFIG_MIPS_MALTA) += fixup-malta.o pci-malta.o + obj-$(CONFIG_PMC_MSP7120_GW) += fixup-pmcmsp.o ops-pmcmsp.o + obj-$(CONFIG_PMC_MSP7120_EVAL) += fixup-pmcmsp.o ops-pmcmsp.o +diff --git a/arch/mips/pci/fixup-gdium.c b/arch/mips/pci/fixup-gdium.c +new file mode 100644 +index 0000000..b296220 +--- /dev/null ++++ b/arch/mips/pci/fixup-gdium.c +@@ -0,0 +1,90 @@ ++/* ++ * Copyright (C) 2010 yajin <yajin@vm-kernel.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/init.h> ++#include <linux/pci.h> ++ ++#include <loongson.h> ++/* ++ * http://www.pcidatabase.com ++ * GDIUM has different PCI mapping ++ * slot 13 (0x1814/0x0301) -> RaLink rt2561 Wireless-G PCI ++ * slog 14 (0x126f/0x0501) -> sm501 ++ * slot 15 (0x1033/0x0035) -> NEC Dual OHCI controllers ++ * plus Single EHCI controller ++ * slot 16 (0x10ec/0x8139) -> Realtek 8139c ++ * slot 17 (0x1033/0x00e0) -> NEC USB 2.0 Host Controller ++ */ ++ ++#undef INT_IRQA ++#undef INT_IRQB ++#undef INT_IRQC ++#undef INT_IRQD ++#define INT_IRQA 36 ++#define INT_IRQB 37 ++#define INT_IRQC 38 ++#define INT_IRQD 39 ++ ++int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) ++{ ++ int irq = 0; ++ ++ switch (slot) { ++ case 13: ++ irq = INT_IRQC + ((pin - 1) & 3); ++ break; ++ case 14: ++ irq = INT_IRQA; ++ break; ++ case 15: ++#if CONFIG_GDIUM_VERSION > 2 ++ irq = INT_IRQB; ++#else ++ irq = INT_IRQA + ((pin - 1) & 3); ++#endif ++ break; ++ case 16: ++ irq = INT_IRQD; ++ break; ++#if CONFIG_GDIUM_VERSION > 2 ++ case 17: ++ irq = INT_IRQC; ++ break; ++#endif ++ default: ++ pr_info(" strange pci slot number %d on gdium.\n", slot); ++ break; ++ } ++ return irq; ++} ++ ++/* Do platform specific device initialization at pci_enable_device() time */ ++int pcibios_plat_dev_init(struct pci_dev *dev) ++{ ++ return 0; ++} ++ ++/* Fixups for the USB host controllers */ ++static void __init gdium_usb_host_fixup(struct pci_dev *dev) ++{ ++ unsigned int val; ++ pci_read_config_dword(dev, 0xe0, &val); ++#if CONFIG_GDIUM_VERSION > 2 ++ pci_write_config_dword(dev, 0xe0, (val & ~3) | 0x3); ++#else ++ pci_write_config_dword(dev, 0xe0, (val & ~7) | 0x5); ++ pci_write_config_dword(dev, 0xe4, 1<<5); ++#endif ++} ++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, ++ gdium_usb_host_fixup); ++#if CONFIG_GDIUM_VERSION > 2 ++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_CT_65550, ++ gdium_usb_host_fixup); ++#endif +diff --git a/arch/mips/power/hibernate.S b/arch/mips/power/hibernate.S +index 32a7c82..7e0277a 100644 +--- a/arch/mips/power/hibernate.S ++++ b/arch/mips/power/hibernate.S +@@ -43,7 +43,6 @@ LEAF(swsusp_arch_resume) + bne t1, t3, 1b + PTR_L t0, PBE_NEXT(t0) + bnez t0, 0b +- jal local_flush_tlb_all /* Avoid TLB mismatch after kernel resume */ + PTR_LA t0, saved_regs + PTR_L ra, PT_R31(t0) + PTR_L sp, PT_R29(t0) +diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c +index 0448860..fa7cfab 100644 +--- a/drivers/ata/pata_cs5536.c ++++ b/drivers/ata/pata_cs5536.c +@@ -46,8 +46,6 @@ static int use_msr; + module_param_named(msr, use_msr, int, 0644); + MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); + #else +-#undef rdmsr /* avoid accidental MSR usage on, e.g. x86-64 */ +-#undef wrmsr + #define rdmsr(x, y, z) do { } while (0) + #define wrmsr(x, y, z) do { } while (0) + #define use_msr 0 +diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig +index f722001..5af02de 100644 +--- a/drivers/hid/Kconfig ++++ b/drivers/hid/Kconfig +@@ -786,6 +786,13 @@ config HID_ZYDACRON + ---help--- + Support for Zydacron remote control. + ++config HID_GDIUM ++ bool "Gdium Fn keys support" if EMBEDDED ++ depends on USB_HID && DEXXON_GDIUM ++ default !EMBEDDED ++ ---help--- ++ Support for Functions keys available on Gdiums. ++ + config HID_SENSOR_HUB + tristate "HID Sensors framework support" + depends on HID +diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile +index 30e4431..e41ca68 100644 +--- a/drivers/hid/Makefile ++++ b/drivers/hid/Makefile +@@ -115,6 +115,7 @@ obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o + obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o + obj-$(CONFIG_HID_WACOM) += hid-wacom.o + obj-$(CONFIG_HID_WALTOP) += hid-waltop.o ++obj-$(CONFIG_HID_GDIUM) += hid-gdium.o + obj-$(CONFIG_HID_WIIMOTE) += hid-wiimote.o + obj-$(CONFIG_HID_SENSOR_HUB) += hid-sensor-hub.o + +diff --git a/drivers/hid/hid-gdium.c b/drivers/hid/hid-gdium.c +new file mode 100644 +index 0000000..67cc095 +--- /dev/null ++++ b/drivers/hid/hid-gdium.c +@@ -0,0 +1,210 @@ ++/* ++ * hid-gdium -- Gdium laptop function keys ++ * ++ * Arnaud Patard <apatard@mandriva.com> ++ * ++ * Based on hid-apple.c ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++ ++#include <linux/device.h> ++#include <linux/hid.h> ++#include <linux/module.h> ++#include <linux/usb.h> ++ ++#include "hid-ids.h" ++ ++#define GDIUM_FN_ON 1 ++ ++static int fnmode = GDIUM_FN_ON; ++module_param(fnmode, int, 0644); ++MODULE_PARM_DESC(fnmode, "Mode of fn key on Gdium (0 = disabled, 1 = Enabled)"); ++ ++struct gdium_data { ++ unsigned int fn_on; ++}; ++ ++ ++struct gdium_key_translation { ++ u16 from; ++ u16 to; ++}; ++ ++static struct gdium_key_translation gdium_fn_keys[] = { ++ { KEY_F1, KEY_CAMERA }, ++ { KEY_F2, KEY_CONNECT }, ++ { KEY_F3, KEY_MUTE }, ++ { KEY_F4, KEY_VOLUMEUP}, ++ { KEY_F5, KEY_VOLUMEDOWN }, ++ { KEY_F6, KEY_SWITCHVIDEOMODE }, ++ { KEY_F7, KEY_F19 }, /* F7+12. Have to use existant keycodes */ ++ { KEY_F8, KEY_BRIGHTNESSUP }, ++ { KEY_F9, KEY_BRIGHTNESSDOWN }, ++ { KEY_F10, KEY_SLEEP }, ++ { KEY_F11, KEY_PROG1 }, ++ { KEY_F12, KEY_PROG2 }, ++ { KEY_UP, KEY_PAGEUP }, ++ { KEY_DOWN, KEY_PAGEDOWN }, ++ { KEY_INSERT, KEY_NUMLOCK }, ++ { KEY_DELETE, KEY_SCROLLLOCK }, ++ { KEY_T, KEY_STOPCD }, ++ { KEY_F, KEY_PREVIOUSSONG }, ++ { KEY_H, KEY_NEXTSONG }, ++ { KEY_G, KEY_PLAYPAUSE }, ++ { } ++}; ++ ++static struct gdium_key_translation *gdium_find_translation( ++ struct gdium_key_translation *table, u16 from) ++{ ++ struct gdium_key_translation *trans; ++ ++ /* Look for the translation */ ++ for (trans = table; trans->from; trans++) ++ if (trans->from == from) ++ return trans; ++ return NULL; ++} ++ ++static int hidinput_gdium_event(struct hid_device *hid, struct input_dev *input, ++ struct hid_usage *usage, __s32 value) ++{ ++ struct gdium_data *data = hid_get_drvdata(hid); ++ struct gdium_key_translation *trans; ++ int do_translate; ++ ++ if (usage->type != EV_KEY) ++ return 0; ++ ++ if ((usage->code == KEY_FN)) { ++ data->fn_on = !!value; ++ input_event(input, usage->type, usage->code, value); ++ return 1; ++ } ++ ++ if (fnmode) { ++ trans = gdium_find_translation(gdium_fn_keys, usage->code); ++ if (trans) { ++ do_translate = data->fn_on; ++ if (do_translate) { ++ input_event(input, usage->type, trans->to, value); ++ return 1; ++ } ++ } ++ } ++ ++ return 0; ++} ++ ++static int gdium_input_event(struct hid_device *hdev, struct hid_field *field, ++ struct hid_usage *usage, __s32 value) ++{ ++ if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || !usage->type) ++ return 0; ++ ++ if (hidinput_gdium_event(hdev, field->hidinput->input, usage, value)) ++ return 1; ++ ++ return 0; ++} ++ ++ ++static void gdium_input_setup(struct input_dev *input) ++{ ++ struct gdium_key_translation *trans; ++ ++ set_bit(KEY_NUMLOCK, input->keybit); ++ ++ /* Enable all needed keys */ ++ for (trans = gdium_fn_keys; trans->from; trans++) ++ set_bit(trans->to, input->keybit); ++} ++ ++static int gdium_input_mapping(struct hid_device *hdev, struct hid_input *hi, ++ struct hid_field *field, struct hid_usage *usage, ++ unsigned long **bit, int *max) ++{ ++ if (((usage->hid & HID_USAGE_PAGE) == HID_UP_KEYBOARD) ++ && ((usage->hid & HID_USAGE) == 0x82)) { ++ hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN); ++ gdium_input_setup(hi->input); ++ return 1; ++ } ++ return 0; ++} ++ ++static int gdium_input_probe(struct hid_device *hdev, const struct hid_device_id *id) ++{ ++ struct gdium_data *data; ++ int ret; ++ ++ data = kzalloc(sizeof(*data), GFP_KERNEL); ++ if (!data) { ++ dev_err(&hdev->dev, "can't alloc gdium keyboard data\n"); ++ return -ENOMEM; ++ } ++ ++ hid_set_drvdata(hdev, data); ++ ++ ret = hid_parse(hdev); ++ if (ret) { ++ dev_err(&hdev->dev, "parse failed\n"); ++ goto err_free; ++ } ++ ++ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); ++ if (ret) { ++ dev_err(&hdev->dev, "hw start failed\n"); ++ goto err_free; ++ } ++ ++ return 0; ++err_free: ++ kfree(data); ++ return ret; ++} ++static void gdium_input_remove(struct hid_device *hdev) ++{ ++ hid_hw_stop(hdev); ++ kfree(hid_get_drvdata(hdev)); ++} ++ ++static const struct hid_device_id gdium_input_devices[] = { ++ { HID_USB_DEVICE(USB_VENDOR_ID_GDIUM, USB_DEVICE_ID_GDIUM) }, ++ {} ++}; ++MODULE_DEVICE_TABLE(hid, gdium_input_devices); ++ ++static struct hid_driver gdium_input_driver = { ++ .name = "gdium-fnkeys", ++ .id_table = gdium_input_devices, ++ .probe = gdium_input_probe, ++ .remove = gdium_input_remove, ++ .event = gdium_input_event, ++ .input_mapping = gdium_input_mapping, ++}; ++ ++static int gdium_input_init(void) ++{ ++ int ret; ++ ++ ret = hid_register_driver(&gdium_input_driver); ++ if (ret) ++ pr_err("can't register gdium keyboard driver\n"); ++ ++ return ret; ++} ++static void gdium_input_exit(void) ++{ ++ hid_unregister_driver(&gdium_input_driver); ++} ++ ++module_init(gdium_input_init); ++module_exit(gdium_input_exit); ++MODULE_LICENSE("GPL"); ++ +diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h +index 6e12cd0..1ce18ed 100644 +--- a/drivers/hid/hid-ids.h ++++ b/drivers/hid/hid-ids.h +@@ -956,6 +956,9 @@ + #define USB_VENDOR_ID_ZYTRONIC 0x14c8 + #define USB_DEVICE_ID_ZYTRONIC_ZXY100 0x0005 + ++#define USB_VENDOR_ID_GDIUM 0x04B4 ++#define USB_DEVICE_ID_GDIUM 0xe001 ++ + #define USB_VENDOR_ID_PRIMAX 0x0461 + #define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05 + +diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig +index c5eec02..9e4eb1d 100644 +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -1002,7 +1002,7 @@ config SCx200_I2C_SDA + + config SCx200_ACB + tristate "Geode ACCESS.bus support" +- depends on X86_32 && PCI ++ depends on PCI + help + Enable the use of the ACCESS.bus controllers on the Geode SCx200 and + SC1100 processors and the CS5535 and CS5536 Geode companion devices. +diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c +index 376f2dc..b576801 100644 +--- a/drivers/ide/ide-iops.c ++++ b/drivers/ide/ide-iops.c +@@ -27,6 +27,10 @@ + #include <asm/uaccess.h> + #include <asm/io.h> + ++#ifdef CONFIG_LEMOTE_MACH2F ++#include <asm/bootinfo.h> ++#endif ++ + void SELECT_MASK(ide_drive_t *drive, int mask) + { + const struct ide_port_ops *port_ops = drive->hwif->port_ops; +@@ -300,6 +304,11 @@ void ide_check_nien_quirk_list(ide_drive_t *drive) + { + const char **list, *m = (char *)&drive->id[ATA_ID_PROD]; + ++#ifdef CONFIG_LEMOTE_MACH2F ++ if (mips_machtype != MACH_LEMOTE_YL2F89) ++ return; ++#endif ++ + for (list = nien_quirk_list; *list != NULL; list++) + if (strstr(m, *list) != NULL) { + drive->dev_flags |= IDE_DFLAG_NIEN_QUIRK; +diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c +index e7dc441..124e8c3 100644 +--- a/drivers/mfd/sm501.c ++++ b/drivers/mfd/sm501.c +@@ -58,7 +58,7 @@ struct sm501_gpio { + struct sm501_gpio { + /* no gpio support, empty definition for sm501_devdata. */ + }; +-#endif ++#endif /* CONFIG_MFD_SM501_GPIO */ + + struct sm501_devdata { + spinlock_t reg_lock; +@@ -1135,6 +1135,22 @@ static inline int sm501_gpio_isregistered(struct sm501_devdata *sm) + { + return sm->gpio.registered; + } ++ ++void sm501_configure_gpio(struct device *dev, unsigned int gpio, unsigned ++ char mode) ++{ ++ unsigned long set, reg, offset = gpio; ++ ++ if (offset >= 32) { ++ reg = SM501_GPIO63_32_CONTROL; ++ offset = gpio - 32; ++ } else ++ reg = SM501_GPIO31_0_CONTROL; ++ ++ set = mode ? 1 << offset : 0; ++ ++ sm501_modify_reg(dev, reg, set, 0); ++} + #else + static inline int sm501_register_gpio(struct sm501_devdata *sm) + { +@@ -1154,7 +1170,13 @@ static inline int sm501_gpio_isregistered(struct sm501_devdata *sm) + { + return 0; + } +-#endif ++ ++void sm501_configure_gpio(struct device *dev, unsigned int gpio, ++ unsigned char mode) ++{ ++} ++#endif /* CONFIG_MFD_SM501_GPIO */ ++EXPORT_SYMBOL_GPL(sm501_configure_gpio); + + static int sm501_register_gpio_i2c_instance(struct sm501_devdata *sm, + struct sm501_platdata_gpio_i2c *iic) +@@ -1209,6 +1231,20 @@ static int sm501_register_gpio_i2c(struct sm501_devdata *sm, + return 0; + } + ++/* register sm501 PWM device */ ++static int sm501_register_pwm(struct sm501_devdata *sm) ++{ ++ struct platform_device *pdev; ++ ++ pdev = sm501_create_subdev(sm, "sm501-pwm", 2, 0); ++ if (!pdev) ++ return -ENOMEM; ++ sm501_create_subio(sm, &pdev->resource[0], 0x10020, 0xC); ++ sm501_create_irq(sm, &pdev->resource[1]); ++ ++ return sm501_register_device(sm, pdev); ++} ++ + /* sm501_dbg_regs + * + * Debug attribute to attach to parent device to show core registers +@@ -1367,6 +1403,8 @@ static int sm501_init_dev(struct sm501_devdata *sm) + sm501_register_uart(sm, idata->devices); + if (idata->devices & SM501_USE_GPIO) + sm501_register_gpio(sm); ++ if (idata->devices & SM501_USE_PWM) ++ sm501_register_pwm(sm); + } + + if (pdata && pdata->gpio_i2c != NULL && pdata->gpio_i2c_nr > 0) { +@@ -1553,10 +1591,15 @@ static struct sm501_initdata sm501_pci_initdata = { + .devices = SM501_USE_ALL, + + /* Errata AB-3 says that 72MHz is the fastest available +- * for 33MHZ PCI with proper bus-mastering operation */ +- ++ * for 33MHZ PCI with proper bus-mastering operation ++ * For gdium, it works under 84&112M clock freq.*/ ++#ifdef CONFIG_DEXXON_GDIUM ++ .mclk = 84 * MHZ, ++ .m1xclk = 112 * MHZ, ++#else + .mclk = 72 * MHZ, + .m1xclk = 144 * MHZ, ++#endif + }; + + static struct sm501_platdata_fbsub sm501_pdata_fbsub = { +diff --git a/drivers/net/titan_ge.c b/drivers/net/titan_ge.c +new file mode 100644 +index 0000000..dc137bf8 +--- /dev/null ++++ b/drivers/net/titan_ge.c +@@ -0,0 +1,2069 @@ ++/* ++ * drivers/net/titan_ge.c - Driver for Titan ethernet ports ++ * ++ * Copyright (C) 2003 PMC-Sierra Inc. ++ * Author : Manish Lachwani (lachwani@pmc-sierra.com) ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2 ++ * of the License, or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++/* ++ * The MAC unit of the Titan consists of the following: ++ * ++ * -> XDMA Engine to move data to from the memory to the MAC packet FIFO ++ * -> FIFO is where the incoming and outgoing data is placed ++ * -> TRTG is the unit that pulls the data from the FIFO for Tx and pushes ++ * the data into the FIFO for Rx ++ * -> TMAC is the outgoing MAC interface and RMAC is the incoming. ++ * -> AFX is the address filtering block ++ * -> GMII block to communicate with the PHY ++ * ++ * Rx will look like the following: ++ * GMII --> RMAC --> AFX --> TRTG --> Rx FIFO --> XDMA --> CPU memory ++ * ++ * Tx will look like the following: ++ * CPU memory --> XDMA --> Tx FIFO --> TRTG --> TMAC --> GMII ++ * ++ * The Titan driver has support for the following performance features: ++ * -> Rx side checksumming ++ * -> Jumbo Frames ++ * -> Interrupt Coalscing ++ * -> Rx NAPI ++ * -> SKB Recycling ++ * -> Transmit/Receive descriptors in SRAM ++ * -> Fast routing for IP forwarding ++ */ ++ ++#include <linux/dma-mapping.h> ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/sched.h> ++#include <linux/ioport.h> ++#include <linux/interrupt.h> ++#include <linux/slab.h> ++#include <linux/string.h> ++#include <linux/errno.h> ++#include <linux/ip.h> ++#include <linux/init.h> ++#include <linux/in.h> ++#include <linux/platform_device.h> ++#include <linux/netdevice.h> ++#include <linux/etherdevice.h> ++#include <linux/skbuff.h> ++#include <linux/mii.h> ++#include <linux/delay.h> ++#include <linux/skbuff.h> ++#include <linux/prefetch.h> ++ ++/* For MII specifc registers, titan_mdio.h should be included */ ++#include <net/ip.h> ++ ++#include <asm/bitops.h> ++#include <asm/io.h> ++#include <asm/types.h> ++#include <asm/pgtable.h> ++#include <asm/system.h> ++#include <asm/titan_dep.h> ++ ++#include "titan_ge.h" ++#include "titan_mdio.h" ++ ++/* Static Function Declarations */ ++static int titan_ge_eth_open(struct net_device *); ++static void titan_ge_eth_stop(struct net_device *); ++static struct net_device_stats *titan_ge_get_stats(struct net_device *); ++static int titan_ge_init_rx_desc_ring(titan_ge_port_info *, int, int, ++ unsigned long, unsigned long, ++ unsigned long); ++static int titan_ge_init_tx_desc_ring(titan_ge_port_info *, int, ++ unsigned long, unsigned long); ++ ++static int titan_ge_open(struct net_device *); ++static int titan_ge_start_xmit(struct sk_buff *, struct net_device *); ++static int titan_ge_stop(struct net_device *); ++ ++static unsigned long titan_ge_tx_coal(unsigned long, int); ++ ++static void titan_ge_port_reset(unsigned int); ++static int titan_ge_free_tx_queue(titan_ge_port_info *); ++static int titan_ge_rx_task(struct net_device *, titan_ge_port_info *); ++static int titan_ge_port_start(struct net_device *, titan_ge_port_info *); ++ ++static int titan_ge_return_tx_desc(titan_ge_port_info *, int); ++ ++/* ++ * Some configuration for the FIFO and the XDMA channel needs ++ * to be done only once for all the ports. This flag controls ++ * that ++ */ ++static unsigned long config_done; ++ ++/* ++ * One time out of memory flag ++ */ ++static unsigned int oom_flag; ++ ++static int titan_ge_poll(struct net_device *netdev, int *budget); ++ ++static int titan_ge_receive_queue(struct net_device *, unsigned int); ++ ++static struct platform_device *titan_ge_device[3]; ++ ++/* MAC Address */ ++extern unsigned char titan_ge_mac_addr_base[6]; ++ ++unsigned long titan_ge_base; ++static unsigned long titan_ge_sram; ++ ++static char titan_string[] = "titan"; ++ ++/* ++ * The Titan GE has two alignment requirements: ++ * -> skb->data to be cacheline aligned (32 byte) ++ * -> IP header alignment to 16 bytes ++ * ++ * The latter is not implemented. So, that results in an extra copy on ++ * the Rx. This is a big performance hog. For the former case, the ++ * dev_alloc_skb() has been replaced with titan_ge_alloc_skb(). The size ++ * requested is calculated: ++ * ++ * Ethernet Frame Size : 1518 ++ * Ethernet Header : 14 ++ * Future Titan change for IP header alignment : 2 ++ * ++ * Hence, we allocate (1518 + 14 + 2+ 64) = 1580 bytes. For IP header ++ * alignment, we use skb_reserve(). ++ */ ++ ++#define ALIGNED_RX_SKB_ADDR(addr) \ ++ ((((unsigned long)(addr) + (64UL - 1UL)) \ ++ & ~(64UL - 1UL)) - (unsigned long)(addr)) ++ ++#define titan_ge_alloc_skb(__length, __gfp_flags) \ ++({ struct sk_buff *__skb; \ ++ __skb = alloc_skb((__length) + 64, (__gfp_flags)); \ ++ if(__skb) { \ ++ int __offset = (int) ALIGNED_RX_SKB_ADDR(__skb->data); \ ++ if(__offset) \ ++ skb_reserve(__skb, __offset); \ ++ } \ ++ __skb; \ ++}) ++ ++/* ++ * Configure the GMII block of the Titan based on what the PHY tells us ++ */ ++static void titan_ge_gmii_config(int port_num) ++{ ++ unsigned int reg_data = 0, phy_reg; ++ int err; ++ ++ err = titan_ge_mdio_read(port_num, TITAN_GE_MDIO_PHY_STATUS, &phy_reg); ++ ++ if (err == TITAN_GE_MDIO_ERROR) { ++ printk(KERN_ERR ++ "Could not read PHY control register 0x11 \n"); ++ printk(KERN_ERR ++ "Setting speed to 1000 Mbps and Duplex to Full \n"); ++ ++ return; ++ } ++ ++ err = titan_ge_mdio_write(port_num, TITAN_GE_MDIO_PHY_IE, 0); ++ ++ if (phy_reg & 0x8000) { ++ if (phy_reg & 0x2000) { ++ /* Full Duplex and 1000 Mbps */ ++ TITAN_GE_WRITE((TITAN_GE_GMII_CONFIG_MODE + ++ (port_num << 12)), 0x201); ++ } else { ++ /* Half Duplex and 1000 Mbps */ ++ TITAN_GE_WRITE((TITAN_GE_GMII_CONFIG_MODE + ++ (port_num << 12)), 0x2201); ++ } ++ } ++ if (phy_reg & 0x4000) { ++ if (phy_reg & 0x2000) { ++ /* Full Duplex and 100 Mbps */ ++ TITAN_GE_WRITE((TITAN_GE_GMII_CONFIG_MODE + ++ (port_num << 12)), 0x100); ++ } else { ++ /* Half Duplex and 100 Mbps */ ++ TITAN_GE_WRITE((TITAN_GE_GMII_CONFIG_MODE + ++ (port_num << 12)), 0x2100); ++ } ++ } ++ reg_data = TITAN_GE_READ(TITAN_GE_GMII_CONFIG_GENERAL + ++ (port_num << 12)); ++ reg_data |= 0x3; ++ TITAN_GE_WRITE((TITAN_GE_GMII_CONFIG_GENERAL + ++ (port_num << 12)), reg_data); ++} ++ ++/* ++ * Enable the TMAC if it is not ++ */ ++static void titan_ge_enable_tx(unsigned int port_num) ++{ ++ unsigned long reg_data; ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_TMAC_CONFIG_1 + (port_num << 12)); ++ if (!(reg_data & 0x8000)) { ++ printk("TMAC disabled for port %d!! \n", port_num); ++ ++ reg_data |= 0x0001; /* Enable TMAC */ ++ reg_data |= 0x4000; /* CRC Check Enable */ ++ reg_data |= 0x2000; /* Padding enable */ ++ reg_data |= 0x0800; /* CRC Add enable */ ++ reg_data |= 0x0080; /* PAUSE frame */ ++ ++ TITAN_GE_WRITE((TITAN_GE_TMAC_CONFIG_1 + ++ (port_num << 12)), reg_data); ++ } ++} ++ ++/* ++ * Tx Timeout function ++ */ ++static void titan_ge_tx_timeout(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ ++ printk(KERN_INFO "%s: TX timeout ", netdev->name); ++ printk(KERN_INFO "Resetting card \n"); ++ ++ /* Do the reset outside of interrupt context */ ++ schedule_work(&titan_ge_eth->tx_timeout_task); ++} ++ ++/* ++ * Update the AFX tables for UC and MC for slice 0 only ++ */ ++static void titan_ge_update_afx(titan_ge_port_info * titan_ge_eth) ++{ ++ int port = titan_ge_eth->port_num; ++ unsigned int i; ++ volatile unsigned long reg_data = 0; ++ u8 p_addr[6]; ++ ++ memcpy(p_addr, titan_ge_eth->port_mac_addr, 6); ++ ++ /* Set the MAC address here for TMAC and RMAC */ ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_HI + (port << 12)), ++ ((p_addr[5] << 8) | p_addr[4])); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_MID + (port << 12)), ++ ((p_addr[3] << 8) | p_addr[2])); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_LOW + (port << 12)), ++ ((p_addr[1] << 8) | p_addr[0])); ++ ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_HI + (port << 12)), ++ ((p_addr[5] << 8) | p_addr[4])); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_MID + (port << 12)), ++ ((p_addr[3] << 8) | p_addr[2])); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_LOW + (port << 12)), ++ ((p_addr[1] << 8) | p_addr[0])); ++ ++ TITAN_GE_WRITE((0x112c | (port << 12)), 0x1); ++ /* Configure the eight address filters */ ++ for (i = 0; i < 8; i++) { ++ /* Select each of the eight filters */ ++ TITAN_GE_WRITE((TITAN_GE_AFX_ADDRS_FILTER_CTRL_2 + ++ (port << 12)), i); ++ ++ /* Configure the match */ ++ reg_data = 0x9; /* Forward Enable Bit */ ++ TITAN_GE_WRITE((TITAN_GE_AFX_ADDRS_FILTER_CTRL_0 + ++ (port << 12)), reg_data); ++ ++ /* Finally, AFX Exact Match Address Registers */ ++ TITAN_GE_WRITE((TITAN_GE_AFX_EXACT_MATCH_LOW + (port << 12)), ++ ((p_addr[1] << 8) | p_addr[0])); ++ TITAN_GE_WRITE((TITAN_GE_AFX_EXACT_MATCH_MID + (port << 12)), ++ ((p_addr[3] << 8) | p_addr[2])); ++ TITAN_GE_WRITE((TITAN_GE_AFX_EXACT_MATCH_HIGH + (port << 12)), ++ ((p_addr[5] << 8) | p_addr[4])); ++ ++ /* VLAN id set to 0 */ ++ TITAN_GE_WRITE((TITAN_GE_AFX_EXACT_MATCH_VID + ++ (port << 12)), 0); ++ } ++} ++ ++/* ++ * Actual Routine to reset the adapter when the timeout occurred ++ */ ++static void titan_ge_tx_timeout_task(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ int port = titan_ge_eth->port_num; ++ ++ printk("Titan GE: Transmit timed out. Resetting ... \n"); ++ ++ /* Dump debug info */ ++ printk(KERN_ERR "TRTG cause : %x \n", ++ TITAN_GE_READ(0x100c + (port << 12))); ++ ++ /* Fix this for the other ports */ ++ printk(KERN_ERR "FIFO cause : %x \n", TITAN_GE_READ(0x482c)); ++ printk(KERN_ERR "IE cause : %x \n", TITAN_GE_READ(0x0040)); ++ printk(KERN_ERR "XDMA GDI ERROR : %x \n", ++ TITAN_GE_READ(0x5008 + (port << 8))); ++ printk(KERN_ERR "CHANNEL ERROR: %x \n", ++ TITAN_GE_READ(TITAN_GE_CHANNEL0_INTERRUPT ++ + (port << 8))); ++ ++ netif_device_detach(netdev); ++ titan_ge_port_reset(titan_ge_eth->port_num); ++ titan_ge_port_start(netdev, titan_ge_eth); ++ netif_device_attach(netdev); ++} ++ ++/* ++ * Change the MTU of the Ethernet Device ++ */ ++static int titan_ge_change_mtu(struct net_device *netdev, int new_mtu) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned long flags; ++ ++ if ((new_mtu > 9500) || (new_mtu < 64)) ++ return -EINVAL; ++ ++ spin_lock_irqsave(&titan_ge_eth->lock, flags); ++ ++ netdev->mtu = new_mtu; ++ ++ /* Now we have to reopen the interface so that SKBs with the new ++ * size will be allocated */ ++ ++ if (netif_running(netdev)) { ++ titan_ge_eth_stop(netdev); ++ ++ if (titan_ge_eth_open(netdev) != TITAN_OK) { ++ printk(KERN_ERR ++ "%s: Fatal error on opening device\n", ++ netdev->name); ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ return -1; ++ } ++ } ++ ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ return 0; ++} ++ ++/* ++ * Titan Gbe Interrupt Handler. All the three ports send interrupt to one line ++ * only. Once an interrupt is triggered, figure out the port and then check ++ * the channel. ++ */ ++static irqreturn_t titan_ge_int_handler(int irq, void *dev_id) ++{ ++ struct net_device *netdev = (struct net_device *) dev_id; ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ unsigned int reg_data; ++ unsigned int eth_int_cause_error = 0, is; ++ unsigned long eth_int_cause1; ++ int err = 0; ++#ifdef CONFIG_SMP ++ unsigned long eth_int_cause2; ++#endif ++ ++ /* Ack the CPU interrupt */ ++ switch (port_num) { ++ case 0: ++ is = OCD_READ(RM9000x2_OCD_INTP0STATUS1); ++ OCD_WRITE(RM9000x2_OCD_INTP0CLEAR1, is); ++ ++#ifdef CONFIG_SMP ++ is = OCD_READ(RM9000x2_OCD_INTP1STATUS1); ++ OCD_WRITE(RM9000x2_OCD_INTP1CLEAR1, is); ++#endif ++ break; ++ ++ case 1: ++ is = OCD_READ(RM9000x2_OCD_INTP0STATUS0); ++ OCD_WRITE(RM9000x2_OCD_INTP0CLEAR0, is); ++ ++#ifdef CONFIG_SMP ++ is = OCD_READ(RM9000x2_OCD_INTP1STATUS0); ++ OCD_WRITE(RM9000x2_OCD_INTP1CLEAR0, is); ++#endif ++ break; ++ ++ case 2: ++ is = OCD_READ(RM9000x2_OCD_INTP0STATUS4); ++ OCD_WRITE(RM9000x2_OCD_INTP0CLEAR4, is); ++ ++#ifdef CONFIG_SMP ++ is = OCD_READ(RM9000x2_OCD_INTP1STATUS4); ++ OCD_WRITE(RM9000x2_OCD_INTP1CLEAR4, is); ++#endif ++ } ++ ++ eth_int_cause1 = TITAN_GE_READ(TITAN_GE_INTR_XDMA_CORE_A); ++#ifdef CONFIG_SMP ++ eth_int_cause2 = TITAN_GE_READ(TITAN_GE_INTR_XDMA_CORE_B); ++#endif ++ ++ /* Spurious interrupt */ ++#ifdef CONFIG_SMP ++ if ( (eth_int_cause1 == 0) && (eth_int_cause2 == 0)) { ++#else ++ if (eth_int_cause1 == 0) { ++#endif ++ eth_int_cause_error = TITAN_GE_READ(TITAN_GE_CHANNEL0_INTERRUPT + ++ (port_num << 8)); ++ ++ if (eth_int_cause_error == 0) ++ return IRQ_NONE; ++ } ++ ++ /* Handle Tx first. No need to ack interrupts */ ++#ifdef CONFIG_SMP ++ if ( (eth_int_cause1 & 0x20202) || ++ (eth_int_cause2 & 0x20202) ) ++#else ++ if (eth_int_cause1 & 0x20202) ++#endif ++ titan_ge_free_tx_queue(titan_ge_eth); ++ ++ /* Handle the Rx next */ ++#ifdef CONFIG_SMP ++ if ( (eth_int_cause1 & 0x10101) || ++ (eth_int_cause2 & 0x10101)) { ++#else ++ if (eth_int_cause1 & 0x10101) { ++#endif ++ if (netif_rx_schedule_prep(netdev)) { ++ unsigned int ack; ++ ++ ack = TITAN_GE_READ(TITAN_GE_INTR_XDMA_IE); ++ /* Disable Tx and Rx both */ ++ if (port_num == 0) ++ ack &= ~(0x3); ++ if (port_num == 1) ++ ack &= ~(0x300); ++ ++ if (port_num == 2) ++ ack &= ~(0x30000); ++ ++ /* Interrupts have been disabled */ ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_IE, ack); ++ ++ __netif_rx_schedule(netdev); ++ } ++ } ++ ++ /* Handle error interrupts */ ++ if (eth_int_cause_error && (eth_int_cause_error != 0x2)) { ++ printk(KERN_ERR ++ "XDMA Channel Error : %x on port %d\n", ++ eth_int_cause_error, port_num); ++ ++ printk(KERN_ERR ++ "XDMA GDI Hardware error : %x on port %d\n", ++ TITAN_GE_READ(0x5008 + (port_num << 8)), port_num); ++ ++ printk(KERN_ERR ++ "XDMA currently has %d Rx descriptors \n", ++ TITAN_GE_READ(0x5048 + (port_num << 8))); ++ ++ printk(KERN_ERR ++ "XDMA currently has prefetcted %d Rx descriptors \n", ++ TITAN_GE_READ(0x505c + (port_num << 8))); ++ ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_INTERRUPT + ++ (port_num << 8)), eth_int_cause_error); ++ } ++ ++ /* ++ * PHY interrupt to inform abt the changes. Reading the ++ * PHY Status register will clear the interrupt ++ */ ++ if ((!(eth_int_cause1 & 0x30303)) && ++ (eth_int_cause_error == 0)) { ++ err = ++ titan_ge_mdio_read(port_num, ++ TITAN_GE_MDIO_PHY_IS, ®_data); ++ ++ if (reg_data & 0x0400) { ++ /* Link status change */ ++ titan_ge_mdio_read(port_num, ++ TITAN_GE_MDIO_PHY_STATUS, ®_data); ++ if (!(reg_data & 0x0400)) { ++ /* Link is down */ ++ netif_carrier_off(netdev); ++ netif_stop_queue(netdev); ++ } else { ++ /* Link is up */ ++ netif_carrier_on(netdev); ++ netif_wake_queue(netdev); ++ ++ /* Enable the queue */ ++ titan_ge_enable_tx(port_num); ++ } ++ } ++ } ++ ++ return IRQ_HANDLED; ++} ++ ++/* ++ * Multicast and Promiscuous mode set. The ++ * set_multi entry point is called whenever the ++ * multicast address list or the network interface ++ * flags are updated. ++ */ ++static void titan_ge_set_multi(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ unsigned long reg_data; ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_AFX_ADDRS_FILTER_CTRL_1 + ++ (port_num << 12)); ++ ++ if (netdev->flags & IFF_PROMISC) { ++ reg_data |= 0x2; ++ } ++ else if (netdev->flags & IFF_ALLMULTI) { ++ reg_data |= 0x01; ++ reg_data |= 0x400; /* Use the 64-bit Multicast Hash bin */ ++ } ++ else { ++ reg_data = 0x2; ++ } ++ ++ TITAN_GE_WRITE((TITAN_GE_AFX_ADDRS_FILTER_CTRL_1 + ++ (port_num << 12)), reg_data); ++ if (reg_data & 0x01) { ++ TITAN_GE_WRITE((TITAN_GE_AFX_MULTICAST_HASH_LOW + ++ (port_num << 12)), 0xffff); ++ TITAN_GE_WRITE((TITAN_GE_AFX_MULTICAST_HASH_MIDLOW + ++ (port_num << 12)), 0xffff); ++ TITAN_GE_WRITE((TITAN_GE_AFX_MULTICAST_HASH_MIDHI + ++ (port_num << 12)), 0xffff); ++ TITAN_GE_WRITE((TITAN_GE_AFX_MULTICAST_HASH_HI + ++ (port_num << 12)), 0xffff); ++ } ++} ++ ++/* ++ * Open the network device ++ */ ++static int titan_ge_open(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ unsigned int irq = TITAN_ETH_PORT_IRQ - port_num; ++ int retval; ++ ++ retval = request_irq(irq, titan_ge_int_handler, ++ SA_INTERRUPT | SA_SAMPLE_RANDOM , netdev->name, netdev); ++ ++ if (retval != 0) { ++ printk(KERN_ERR "Cannot assign IRQ number to TITAN GE \n"); ++ return -1; ++ } ++ ++ netdev->irq = irq; ++ printk(KERN_INFO "Assigned IRQ %d to port %d\n", irq, port_num); ++ ++ spin_lock_irq(&(titan_ge_eth->lock)); ++ ++ if (titan_ge_eth_open(netdev) != TITAN_OK) { ++ spin_unlock_irq(&(titan_ge_eth->lock)); ++ printk("%s: Error opening interface \n", netdev->name); ++ free_irq(netdev->irq, netdev); ++ return -EBUSY; ++ } ++ ++ spin_unlock_irq(&(titan_ge_eth->lock)); ++ ++ return 0; ++} ++ ++/* ++ * Allocate the SKBs for the Rx ring. Also used ++ * for refilling the queue ++ */ ++static int titan_ge_rx_task(struct net_device *netdev, ++ titan_ge_port_info *titan_ge_port) ++{ ++ struct device *device = &titan_ge_device[titan_ge_port->port_num]->dev; ++ volatile titan_ge_rx_desc *rx_desc; ++ struct sk_buff *skb; ++ int rx_used_desc; ++ int count = 0; ++ ++ while (titan_ge_port->rx_ring_skbs < titan_ge_port->rx_ring_size) { ++ ++ /* First try to get the skb from the recycler */ ++#ifdef TITAN_GE_JUMBO_FRAMES ++ skb = titan_ge_alloc_skb(TITAN_GE_JUMBO_BUFSIZE, GFP_ATOMIC); ++#else ++ skb = titan_ge_alloc_skb(TITAN_GE_STD_BUFSIZE, GFP_ATOMIC); ++#endif ++ if (unlikely(!skb)) { ++ /* OOM, set the flag */ ++ printk("OOM \n"); ++ oom_flag = 1; ++ break; ++ } ++ count++; ++ skb->dev = netdev; ++ ++ titan_ge_port->rx_ring_skbs++; ++ ++ rx_used_desc = titan_ge_port->rx_used_desc_q; ++ rx_desc = &(titan_ge_port->rx_desc_area[rx_used_desc]); ++ ++#ifdef TITAN_GE_JUMBO_FRAMES ++ rx_desc->buffer_addr = dma_map_single(device, skb->data, ++ TITAN_GE_JUMBO_BUFSIZE - 2, DMA_FROM_DEVICE); ++#else ++ rx_desc->buffer_addr = dma_map_single(device, skb->data, ++ TITAN_GE_STD_BUFSIZE - 2, DMA_FROM_DEVICE); ++#endif ++ ++ titan_ge_port->rx_skb[rx_used_desc] = skb; ++ rx_desc->cmd_sts = TITAN_GE_RX_BUFFER_OWNED; ++ ++ titan_ge_port->rx_used_desc_q = ++ (rx_used_desc + 1) % TITAN_GE_RX_QUEUE; ++ } ++ ++ return count; ++} ++ ++/* ++ * Actual init of the Tital GE port. There is one register for ++ * the channel configuration ++ */ ++static void titan_port_init(struct net_device *netdev, ++ titan_ge_port_info * titan_ge_eth) ++{ ++ unsigned long reg_data; ++ ++ titan_ge_port_reset(titan_ge_eth->port_num); ++ ++ /* First reset the TMAC */ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG); ++ reg_data |= 0x80000000; ++ TITAN_GE_WRITE(TITAN_GE_CHANNEL0_CONFIG, reg_data); ++ ++ udelay(30); ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG); ++ reg_data &= ~(0xc0000000); ++ TITAN_GE_WRITE(TITAN_GE_CHANNEL0_CONFIG, reg_data); ++ ++ /* Now reset the RMAC */ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG); ++ reg_data |= 0x00080000; ++ TITAN_GE_WRITE(TITAN_GE_CHANNEL0_CONFIG, reg_data); ++ ++ udelay(30); ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG); ++ reg_data &= ~(0x000c0000); ++ TITAN_GE_WRITE(TITAN_GE_CHANNEL0_CONFIG, reg_data); ++} ++ ++/* ++ * Start the port. All the hardware specific configuration ++ * for the XDMA, Tx FIFO, Rx FIFO, TMAC, RMAC, TRTG and AFX ++ * go here ++ */ ++static int titan_ge_port_start(struct net_device *netdev, ++ titan_ge_port_info * titan_port) ++{ ++ volatile unsigned long reg_data, reg_data1; ++ int port_num = titan_port->port_num; ++ int count = 0; ++ unsigned long reg_data_1; ++ ++ if (config_done == 0) { ++ reg_data = TITAN_GE_READ(0x0004); ++ reg_data |= 0x100; ++ TITAN_GE_WRITE(0x0004, reg_data); ++ ++ reg_data &= ~(0x100); ++ TITAN_GE_WRITE(0x0004, reg_data); ++ ++ /* Turn on GMII/MII mode and turn off TBI mode */ ++ reg_data = TITAN_GE_READ(TITAN_GE_TSB_CTRL_1); ++ reg_data |= 0x00000700; ++ reg_data &= ~(0x00800000); /* Fencing */ ++ ++ TITAN_GE_WRITE(0x000c, 0x00001100); ++ ++ TITAN_GE_WRITE(TITAN_GE_TSB_CTRL_1, reg_data); ++ ++ /* Set the CPU Resource Limit register */ ++ TITAN_GE_WRITE(0x00f8, 0x8); ++ ++ /* Be conservative when using the BIU buffers */ ++ TITAN_GE_WRITE(0x0068, 0x4); ++ } ++ ++ titan_port->tx_threshold = 0; ++ titan_port->rx_threshold = 0; ++ ++ /* We need to write the descriptors for Tx and Rx */ ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_TX_DESC + (port_num << 8)), ++ (unsigned long) titan_port->tx_dma); ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_RX_DESC + (port_num << 8)), ++ (unsigned long) titan_port->rx_dma); ++ ++ if (config_done == 0) { ++ /* Step 1: XDMA config */ ++ reg_data = TITAN_GE_READ(TITAN_GE_XDMA_CONFIG); ++ reg_data &= ~(0x80000000); /* clear reset */ ++ reg_data |= 0x1 << 29; /* sparse tx descriptor spacing */ ++ reg_data |= 0x1 << 28; /* sparse rx descriptor spacing */ ++ reg_data |= (0x1 << 23) | (0x1 << 24); /* Descriptor Coherency */ ++ reg_data |= (0x1 << 21) | (0x1 << 22); /* Data Coherency */ ++ TITAN_GE_WRITE(TITAN_GE_XDMA_CONFIG, reg_data); ++ } ++ ++ /* IR register for the XDMA */ ++ reg_data = TITAN_GE_READ(TITAN_GE_GDI_INTERRUPT_ENABLE + (port_num << 8)); ++ reg_data |= 0x80068000; /* No Rx_OOD */ ++ TITAN_GE_WRITE((TITAN_GE_GDI_INTERRUPT_ENABLE + (port_num << 8)), reg_data); ++ ++ /* Start the Tx and Rx XDMA controller */ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG + (port_num << 8)); ++ reg_data &= 0x4fffffff; /* Clear tx reset */ ++ reg_data &= 0xfff4ffff; /* Clear rx reset */ ++ ++#ifdef TITAN_GE_JUMBO_FRAMES ++ reg_data |= 0xa0 | 0x30030000; ++#else ++ reg_data |= 0x40 | 0x20030000; ++#endif ++ ++#ifndef CONFIG_SMP ++ reg_data &= ~(0x10); ++ reg_data |= 0x0f; /* All of the packet */ ++#endif ++ ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_CONFIG + (port_num << 8)), reg_data); ++ ++ /* Rx desc count */ ++ count = titan_ge_rx_task(netdev, titan_port); ++ TITAN_GE_WRITE((0x5048 + (port_num << 8)), count); ++ count = TITAN_GE_READ(0x5048 + (port_num << 8)); ++ ++ udelay(30); ++ ++ /* ++ * Step 2: Configure the SDQPF, i.e. FIFO ++ */ ++ if (config_done == 0) { ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_RXFIFO_CTL); ++ reg_data = 0x1; ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_RXFIFO_CTL, reg_data); ++ reg_data &= ~(0x1); ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_RXFIFO_CTL, reg_data); ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_RXFIFO_CTL); ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_RXFIFO_CTL, reg_data); ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_TXFIFO_CTL); ++ reg_data = 0x1; ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_CTL, reg_data); ++ reg_data &= ~(0x1); ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_CTL, reg_data); ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_TXFIFO_CTL); ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_CTL, reg_data); ++ } ++ /* ++ * Enable RX FIFO 0, 4 and 8 ++ */ ++ if (port_num == 0) { ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_RXFIFO_0); ++ ++ reg_data |= 0x100000; ++ reg_data |= (0xff << 10); ++ ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_RXFIFO_0, reg_data); ++ /* ++ * BAV2,BAV and DAV settings for the Rx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x4844); ++ reg_data1 |= ( (0x10 << 20) | (0x10 << 10) | 0x1); ++ TITAN_GE_WRITE(0x4844, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_RXFIFO_0, reg_data); ++ ++ reg_data = TITAN_GE_READ(TITAN_GE_SDQPF_TXFIFO_0); ++ reg_data |= 0x100000; ++ ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_0, reg_data); ++ ++ reg_data |= (0xff << 10); ++ ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_0, reg_data); ++ ++ /* ++ * BAV2, BAV and DAV settings for the Tx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x4944); ++ reg_data1 = ( (0x1 << 20) | (0x1 << 10) | 0x10); ++ ++ TITAN_GE_WRITE(0x4944, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(TITAN_GE_SDQPF_TXFIFO_0, reg_data); ++ ++ } ++ ++ if (port_num == 1) { ++ reg_data = TITAN_GE_READ(0x4870); ++ ++ reg_data |= 0x100000; ++ reg_data |= (0xff << 10) | (0xff + 1); ++ ++ TITAN_GE_WRITE(0x4870, reg_data); ++ /* ++ * BAV2,BAV and DAV settings for the Rx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x4874); ++ reg_data1 |= ( (0x10 << 20) | (0x10 << 10) | 0x1); ++ TITAN_GE_WRITE(0x4874, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x4870, reg_data); ++ ++ reg_data = TITAN_GE_READ(0x494c); ++ reg_data |= 0x100000; ++ ++ TITAN_GE_WRITE(0x494c, reg_data); ++ reg_data |= (0xff << 10) | (0xff + 1); ++ TITAN_GE_WRITE(0x494c, reg_data); ++ ++ /* ++ * BAV2, BAV and DAV settings for the Tx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x4950); ++ reg_data1 = ( (0x1 << 20) | (0x1 << 10) | 0x10); ++ ++ TITAN_GE_WRITE(0x4950, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x494c, reg_data); ++ } ++ ++ /* ++ * Titan 1.2 revision does support port #2 ++ */ ++ if (port_num == 2) { ++ /* ++ * Put the descriptors in the SRAM ++ */ ++ reg_data = TITAN_GE_READ(0x48a0); ++ ++ reg_data |= 0x100000; ++ reg_data |= (0xff << 10) | (2*(0xff + 1)); ++ ++ TITAN_GE_WRITE(0x48a0, reg_data); ++ /* ++ * BAV2,BAV and DAV settings for the Rx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x48a4); ++ reg_data1 |= ( (0x10 << 20) | (0x10 << 10) | 0x1); ++ TITAN_GE_WRITE(0x48a4, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x48a0, reg_data); ++ ++ reg_data = TITAN_GE_READ(0x4958); ++ reg_data |= 0x100000; ++ ++ TITAN_GE_WRITE(0x4958, reg_data); ++ reg_data |= (0xff << 10) | (2*(0xff + 1)); ++ TITAN_GE_WRITE(0x4958, reg_data); ++ ++ /* ++ * BAV2, BAV and DAV settings for the Tx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x495c); ++ reg_data1 = ( (0x1 << 20) | (0x1 << 10) | 0x10); ++ ++ TITAN_GE_WRITE(0x495c, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x4958, reg_data); ++ } ++ ++ if (port_num == 2) { ++ reg_data = TITAN_GE_READ(0x48a0); ++ ++ reg_data |= 0x100000; ++ reg_data |= (0xff << 10) | (2*(0xff + 1)); ++ ++ TITAN_GE_WRITE(0x48a0, reg_data); ++ /* ++ * BAV2,BAV and DAV settings for the Rx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x48a4); ++ reg_data1 |= ( (0x10 << 20) | (0x10 << 10) | 0x1); ++ TITAN_GE_WRITE(0x48a4, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x48a0, reg_data); ++ ++ reg_data = TITAN_GE_READ(0x4958); ++ reg_data |= 0x100000; ++ ++ TITAN_GE_WRITE(0x4958, reg_data); ++ reg_data |= (0xff << 10) | (2*(0xff + 1)); ++ TITAN_GE_WRITE(0x4958, reg_data); ++ ++ /* ++ * BAV2, BAV and DAV settings for the Tx FIFO ++ */ ++ reg_data1 = TITAN_GE_READ(0x495c); ++ reg_data1 = ( (0x1 << 20) | (0x1 << 10) | 0x10); ++ ++ TITAN_GE_WRITE(0x495c, reg_data1); ++ ++ reg_data &= ~(0x00100000); ++ reg_data |= 0x200000; ++ ++ TITAN_GE_WRITE(0x4958, reg_data); ++ } ++ ++ /* ++ * Step 3: TRTG block enable ++ */ ++ reg_data = TITAN_GE_READ(TITAN_GE_TRTG_CONFIG + (port_num << 12)); ++ ++ /* ++ * This is the 1.2 revision of the chip. It has fix for the ++ * IP header alignment. Now, the IP header begins at an ++ * aligned address and this wont need an extra copy in the ++ * driver. This performance drawback existed in the previous ++ * versions of the silicon ++ */ ++ reg_data_1 = TITAN_GE_READ(0x103c + (port_num << 12)); ++ reg_data_1 |= 0x40000000; ++ TITAN_GE_WRITE((0x103c + (port_num << 12)), reg_data_1); ++ ++ reg_data_1 |= 0x04000000; ++ TITAN_GE_WRITE((0x103c + (port_num << 12)), reg_data_1); ++ ++ mdelay(5); ++ ++ reg_data_1 &= ~(0x04000000); ++ TITAN_GE_WRITE((0x103c + (port_num << 12)), reg_data_1); ++ ++ mdelay(5); ++ ++ reg_data |= 0x0001; ++ TITAN_GE_WRITE((TITAN_GE_TRTG_CONFIG + (port_num << 12)), reg_data); ++ ++ /* ++ * Step 4: Start the Tx activity ++ */ ++ TITAN_GE_WRITE((TITAN_GE_TMAC_CONFIG_2 + (port_num << 12)), 0xe197); ++#ifdef TITAN_GE_JUMBO_FRAMES ++ TITAN_GE_WRITE((0x1258 + (port_num << 12)), 0x4000); ++#endif ++ reg_data = TITAN_GE_READ(TITAN_GE_TMAC_CONFIG_1 + (port_num << 12)); ++ reg_data |= 0x0001; /* Enable TMAC */ ++ reg_data |= 0x6c70; /* PAUSE also set */ ++ ++ TITAN_GE_WRITE((TITAN_GE_TMAC_CONFIG_1 + (port_num << 12)), reg_data); ++ ++ udelay(30); ++ ++ /* Destination Address drop bit */ ++ reg_data = TITAN_GE_READ(TITAN_GE_RMAC_CONFIG_2 + (port_num << 12)); ++ reg_data |= 0x218; /* DA_DROP bit and pause */ ++ TITAN_GE_WRITE((TITAN_GE_RMAC_CONFIG_2 + (port_num << 12)), reg_data); ++ ++ TITAN_GE_WRITE((0x1218 + (port_num << 12)), 0x3); ++ ++#ifdef TITAN_GE_JUMBO_FRAMES ++ TITAN_GE_WRITE((0x1208 + (port_num << 12)), 0x4000); ++#endif ++ /* Start the Rx activity */ ++ reg_data = TITAN_GE_READ(TITAN_GE_RMAC_CONFIG_1 + (port_num << 12)); ++ reg_data |= 0x0001; /* RMAC Enable */ ++ reg_data |= 0x0010; /* CRC Check enable */ ++ reg_data |= 0x0040; /* Min Frame check enable */ ++ reg_data |= 0x4400; /* Max Frame check enable */ ++ ++ TITAN_GE_WRITE((TITAN_GE_RMAC_CONFIG_1 + (port_num << 12)), reg_data); ++ ++ udelay(30); ++ ++ /* ++ * Enable the Interrupts for Tx and Rx ++ */ ++ reg_data1 = TITAN_GE_READ(TITAN_GE_INTR_XDMA_IE); ++ ++ if (port_num == 0) { ++ reg_data1 |= 0x3; ++#ifdef CONFIG_SMP ++ TITAN_GE_WRITE(0x0038, 0x003); ++#else ++ TITAN_GE_WRITE(0x0038, 0x303); ++#endif ++ } ++ ++ if (port_num == 1) { ++ reg_data1 |= 0x300; ++ } ++ ++ if (port_num == 2) ++ reg_data1 |= 0x30000; ++ ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_IE, reg_data1); ++ TITAN_GE_WRITE(0x003c, 0x300); ++ ++ if (config_done == 0) { ++ TITAN_GE_WRITE(0x0024, 0x04000024); /* IRQ vector */ ++ TITAN_GE_WRITE(0x0020, 0x000fb000); /* INTMSG base */ ++ } ++ ++ /* Priority */ ++ reg_data = TITAN_GE_READ(0x1038 + (port_num << 12)); ++ reg_data &= ~(0x00f00000); ++ TITAN_GE_WRITE((0x1038 + (port_num << 12)), reg_data); ++ ++ /* Step 5: GMII config */ ++ titan_ge_gmii_config(port_num); ++ ++ if (config_done == 0) { ++ TITAN_GE_WRITE(0x1a80, 0); ++ config_done = 1; ++ } ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Function to queue the packet for the Ethernet device ++ */ ++static void titan_ge_tx_queue(titan_ge_port_info * titan_ge_eth, ++ struct sk_buff * skb) ++{ ++ struct device *device = &titan_ge_device[titan_ge_eth->port_num]->dev; ++ unsigned int curr_desc = titan_ge_eth->tx_curr_desc_q; ++ volatile titan_ge_tx_desc *tx_curr; ++ int port_num = titan_ge_eth->port_num; ++ ++ tx_curr = &(titan_ge_eth->tx_desc_area[curr_desc]); ++ tx_curr->buffer_addr = ++ dma_map_single(device, skb->data, skb_headlen(skb), ++ DMA_TO_DEVICE); ++ ++ titan_ge_eth->tx_skb[curr_desc] = (struct sk_buff *) skb; ++ tx_curr->buffer_len = skb_headlen(skb); ++ ++ /* Last descriptor enables interrupt and changes ownership */ ++ tx_curr->cmd_sts = 0x1 | (1 << 15) | (1 << 5); ++ ++ /* Kick the XDMA to start the transfer from memory to the FIFO */ ++ TITAN_GE_WRITE((0x5044 + (port_num << 8)), 0x1); ++ ++ /* Current descriptor updated */ ++ titan_ge_eth->tx_curr_desc_q = (curr_desc + 1) % TITAN_GE_TX_QUEUE; ++ ++ /* Prefetch the next descriptor */ ++ prefetch((const void *) ++ &titan_ge_eth->tx_desc_area[titan_ge_eth->tx_curr_desc_q]); ++} ++ ++/* ++ * Actually does the open of the Ethernet device ++ */ ++static int titan_ge_eth_open(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ struct device *device = &titan_ge_device[port_num]->dev; ++ unsigned long reg_data; ++ unsigned int phy_reg; ++ int err = 0; ++ ++ /* Stop the Rx activity */ ++ reg_data = TITAN_GE_READ(TITAN_GE_RMAC_CONFIG_1 + (port_num << 12)); ++ reg_data &= ~(0x00000001); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_CONFIG_1 + (port_num << 12)), reg_data); ++ ++ /* Clear the port interrupts */ ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_INTERRUPT + (port_num << 8)), 0x0); ++ ++ if (config_done == 0) { ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_CORE_A, 0); ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_CORE_B, 0); ++ } ++ ++ /* Set the MAC Address */ ++ memcpy(titan_ge_eth->port_mac_addr, netdev->dev_addr, 6); ++ ++ if (config_done == 0) ++ titan_port_init(netdev, titan_ge_eth); ++ ++ titan_ge_update_afx(titan_ge_eth); ++ ++ /* Allocate the Tx ring now */ ++ titan_ge_eth->tx_ring_skbs = 0; ++ titan_ge_eth->tx_ring_size = TITAN_GE_TX_QUEUE; ++ ++ /* Allocate space in the SRAM for the descriptors */ ++ titan_ge_eth->tx_desc_area = (titan_ge_tx_desc *) ++ (titan_ge_sram + TITAN_TX_RING_BYTES * port_num); ++ titan_ge_eth->tx_dma = TITAN_SRAM_BASE + TITAN_TX_RING_BYTES * port_num; ++ ++ if (!titan_ge_eth->tx_desc_area) { ++ printk(KERN_ERR ++ "%s: Cannot allocate Tx Ring (size %d bytes) for port %d\n", ++ netdev->name, TITAN_TX_RING_BYTES, port_num); ++ return -ENOMEM; ++ } ++ ++ memset(titan_ge_eth->tx_desc_area, 0, titan_ge_eth->tx_desc_area_size); ++ ++ /* Now initialize the Tx descriptor ring */ ++ titan_ge_init_tx_desc_ring(titan_ge_eth, ++ titan_ge_eth->tx_ring_size, ++ (unsigned long) titan_ge_eth->tx_desc_area, ++ (unsigned long) titan_ge_eth->tx_dma); ++ ++ /* Allocate the Rx ring now */ ++ titan_ge_eth->rx_ring_size = TITAN_GE_RX_QUEUE; ++ titan_ge_eth->rx_ring_skbs = 0; ++ ++ titan_ge_eth->rx_desc_area = ++ (titan_ge_rx_desc *)(titan_ge_sram + 0x1000 + TITAN_RX_RING_BYTES * port_num); ++ ++ titan_ge_eth->rx_dma = TITAN_SRAM_BASE + 0x1000 + TITAN_RX_RING_BYTES * port_num; ++ ++ if (!titan_ge_eth->rx_desc_area) { ++ printk(KERN_ERR "%s: Cannot allocate Rx Ring (size %d bytes)\n", ++ netdev->name, TITAN_RX_RING_BYTES); ++ ++ printk(KERN_ERR "%s: Freeing previously allocated TX queues...", ++ netdev->name); ++ ++ dma_free_coherent(device, titan_ge_eth->tx_desc_area_size, ++ (void *) titan_ge_eth->tx_desc_area, ++ titan_ge_eth->tx_dma); ++ ++ return -ENOMEM; ++ } ++ ++ memset(titan_ge_eth->rx_desc_area, 0, titan_ge_eth->rx_desc_area_size); ++ ++ /* Now initialize the Rx ring */ ++#ifdef TITAN_GE_JUMBO_FRAMES ++ if ((titan_ge_init_rx_desc_ring ++ (titan_ge_eth, titan_ge_eth->rx_ring_size, TITAN_GE_JUMBO_BUFSIZE, ++ (unsigned long) titan_ge_eth->rx_desc_area, 0, ++ (unsigned long) titan_ge_eth->rx_dma)) == 0) ++#else ++ if ((titan_ge_init_rx_desc_ring ++ (titan_ge_eth, titan_ge_eth->rx_ring_size, TITAN_GE_STD_BUFSIZE, ++ (unsigned long) titan_ge_eth->rx_desc_area, 0, ++ (unsigned long) titan_ge_eth->rx_dma)) == 0) ++#endif ++ panic("%s: Error initializing RX Ring\n", netdev->name); ++ ++ /* Fill the Rx ring with the SKBs */ ++ titan_ge_port_start(netdev, titan_ge_eth); ++ ++ /* ++ * Check if Interrupt Coalscing needs to be turned on. The ++ * values specified in the register is multiplied by ++ * (8 x 64 nanoseconds) to determine when an interrupt should ++ * be sent to the CPU. ++ */ ++ ++ if (TITAN_GE_TX_COAL) { ++ titan_ge_eth->tx_int_coal = ++ titan_ge_tx_coal(TITAN_GE_TX_COAL, port_num); ++ } ++ ++ err = titan_ge_mdio_read(port_num, TITAN_GE_MDIO_PHY_STATUS, &phy_reg); ++ if (err == TITAN_GE_MDIO_ERROR) { ++ printk(KERN_ERR ++ "Could not read PHY control register 0x11 \n"); ++ return TITAN_ERROR; ++ } ++ if (!(phy_reg & 0x0400)) { ++ netif_carrier_off(netdev); ++ netif_stop_queue(netdev); ++ return TITAN_ERROR; ++ } else { ++ netif_carrier_on(netdev); ++ netif_start_queue(netdev); ++ } ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Queue the packet for Tx. Currently no support for zero copy, ++ * checksum offload and Scatter Gather. The chip does support ++ * Scatter Gather only. But, that wont help here since zero copy ++ * requires support for Tx checksumming also. ++ */ ++int titan_ge_start_xmit(struct sk_buff *skb, struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned long flags; ++ struct net_device_stats *stats; ++//printk("titan_ge_start_xmit\n"); ++ ++ stats = &titan_ge_eth->stats; ++ spin_lock_irqsave(&titan_ge_eth->lock, flags); ++ ++ if ((TITAN_GE_TX_QUEUE - titan_ge_eth->tx_ring_skbs) <= ++ (skb_shinfo(skb)->nr_frags + 1)) { ++ netif_stop_queue(netdev); ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ printk(KERN_ERR "Tx OOD \n"); ++ return 1; ++ } ++ ++ titan_ge_tx_queue(titan_ge_eth, skb); ++ titan_ge_eth->tx_ring_skbs++; ++ ++ if (TITAN_GE_TX_QUEUE <= (titan_ge_eth->tx_ring_skbs + 4)) { ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ titan_ge_free_tx_queue(titan_ge_eth); ++ spin_lock_irqsave(&titan_ge_eth->lock, flags); ++ } ++ ++ stats->tx_bytes += skb->len; ++ stats->tx_packets++; ++ ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ ++ netdev->trans_start = jiffies; ++ ++ return 0; ++} ++ ++/* ++ * Actually does the Rx. Rx side checksumming supported. ++ */ ++static int titan_ge_rx(struct net_device *netdev, int port_num, ++ titan_ge_port_info * titan_ge_port, ++ titan_ge_packet * packet) ++{ ++ int rx_curr_desc, rx_used_desc; ++ volatile titan_ge_rx_desc *rx_desc; ++ ++ rx_curr_desc = titan_ge_port->rx_curr_desc_q; ++ rx_used_desc = titan_ge_port->rx_used_desc_q; ++ ++ if (((rx_curr_desc + 1) % TITAN_GE_RX_QUEUE) == rx_used_desc) ++ return TITAN_ERROR; ++ ++ rx_desc = &(titan_ge_port->rx_desc_area[rx_curr_desc]); ++ ++ if (rx_desc->cmd_sts & TITAN_GE_RX_BUFFER_OWNED) ++ return TITAN_ERROR; ++ ++ packet->skb = titan_ge_port->rx_skb[rx_curr_desc]; ++ packet->len = (rx_desc->cmd_sts & 0x7fff); ++ ++ /* ++ * At this point, we dont know if the checksumming ++ * actually helps relieve CPU. So, keep it for ++ * port 0 only ++ */ ++ packet->checksum = ntohs((rx_desc->buffer & 0xffff0000) >> 16); ++ packet->cmd_sts = rx_desc->cmd_sts; ++ ++ titan_ge_port->rx_curr_desc_q = (rx_curr_desc + 1) % TITAN_GE_RX_QUEUE; ++ ++ /* Prefetch the next descriptor */ ++ prefetch((const void *) ++ &titan_ge_port->rx_desc_area[titan_ge_port->rx_curr_desc_q + 1]); ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Free the Tx queue of the used SKBs ++ */ ++static int titan_ge_free_tx_queue(titan_ge_port_info *titan_ge_eth) ++{ ++ unsigned long flags; ++ ++ /* Take the lock */ ++ spin_lock_irqsave(&(titan_ge_eth->lock), flags); ++ ++ while (titan_ge_return_tx_desc(titan_ge_eth, titan_ge_eth->port_num) == 0) ++ if (titan_ge_eth->tx_ring_skbs != 1) ++ titan_ge_eth->tx_ring_skbs--; ++ ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Threshold beyond which we do the cleaning of ++ * Tx queue and new allocation for the Rx ++ * queue ++ */ ++#define TX_THRESHOLD 4 ++#define RX_THRESHOLD 10 ++ ++/* ++ * Receive the packets and send it to the kernel. ++ */ ++static int titan_ge_receive_queue(struct net_device *netdev, unsigned int max) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ titan_ge_packet packet; ++ struct net_device_stats *stats; ++ struct sk_buff *skb; ++ unsigned long received_packets = 0; ++ unsigned int ack; ++ ++ stats = &titan_ge_eth->stats; ++ ++ while ((--max) ++ && (titan_ge_rx(netdev, port_num, titan_ge_eth, &packet) == TITAN_OK)) { ++ skb = (struct sk_buff *) packet.skb; ++ ++ titan_ge_eth->rx_ring_skbs--; ++ ++ if (--titan_ge_eth->rx_work_limit < 0) ++ break; ++ received_packets++; ++ ++ stats->rx_packets++; ++ stats->rx_bytes += packet.len; ++ ++ if ((packet.cmd_sts & TITAN_GE_RX_PERR) || ++ (packet.cmd_sts & TITAN_GE_RX_OVERFLOW_ERROR) || ++ (packet.cmd_sts & TITAN_GE_RX_TRUNC) || ++ (packet.cmd_sts & TITAN_GE_RX_CRC_ERROR)) { ++ stats->rx_dropped++; ++ dev_kfree_skb_any(skb); ++ ++ continue; ++ } ++ /* ++ * Either support fast path or slow path. Decision ++ * making can really slow down the performance. The ++ * idea is to cut down the number of checks and improve ++ * the fastpath. ++ */ ++ ++ skb_put(skb, packet.len - 2); ++ ++ /* ++ * Increment data pointer by two since thats where ++ * the MAC starts ++ */ ++ skb_reserve(skb, 2); ++ skb->protocol = eth_type_trans(skb, netdev); ++ netif_receive_skb(skb); ++ ++ if (titan_ge_eth->rx_threshold > RX_THRESHOLD) { ++ ack = titan_ge_rx_task(netdev, titan_ge_eth); ++ TITAN_GE_WRITE((0x5048 + (port_num << 8)), ack); ++ titan_ge_eth->rx_threshold = 0; ++ } else ++ titan_ge_eth->rx_threshold++; ++ ++ if (titan_ge_eth->tx_threshold > TX_THRESHOLD) { ++ titan_ge_eth->tx_threshold = 0; ++ titan_ge_free_tx_queue(titan_ge_eth); ++ } ++ else ++ titan_ge_eth->tx_threshold++; ++ ++ } ++ return received_packets; ++} ++ ++ ++/* ++ * Enable the Rx side interrupts ++ */ ++static void titan_ge_enable_int(unsigned int port_num, ++ titan_ge_port_info *titan_ge_eth, ++ struct net_device *netdev) ++{ ++ unsigned long reg_data = TITAN_GE_READ(TITAN_GE_INTR_XDMA_IE); ++ ++ if (port_num == 0) ++ reg_data |= 0x3; ++ if (port_num == 1) ++ reg_data |= 0x300; ++ if (port_num == 2) ++ reg_data |= 0x30000; ++ ++ /* Re-enable interrupts */ ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_IE, reg_data); ++} ++ ++/* ++ * Main function to handle the polling for Rx side NAPI. ++ * Receive interrupts have been disabled at this point. ++ * The poll schedules the transmit followed by receive. ++ */ ++static int titan_ge_poll(struct net_device *netdev, int *budget) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ int port_num = titan_ge_eth->port_num; ++ int work_done = 0; ++ unsigned long flags, status; ++ ++ titan_ge_eth->rx_work_limit = *budget; ++ if (titan_ge_eth->rx_work_limit > netdev->quota) ++ titan_ge_eth->rx_work_limit = netdev->quota; ++ ++ do { ++ /* Do the transmit cleaning work here */ ++ titan_ge_free_tx_queue(titan_ge_eth); ++ ++ /* Ack the Rx interrupts */ ++ if (port_num == 0) ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_CORE_A, 0x3); ++ if (port_num == 1) ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_CORE_A, 0x300); ++ if (port_num == 2) ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_CORE_A, 0x30000); ++ ++ work_done += titan_ge_receive_queue(netdev, 0); ++ ++ /* Out of quota and there is work to be done */ ++ if (titan_ge_eth->rx_work_limit < 0) ++ goto not_done; ++ ++ /* Receive alloc_skb could lead to OOM */ ++ if (oom_flag == 1) { ++ oom_flag = 0; ++ goto oom; ++ } ++ ++ status = TITAN_GE_READ(TITAN_GE_INTR_XDMA_CORE_A); ++ } while (status & 0x30300); ++ ++ /* If we are here, then no more interrupts to process */ ++ goto done; ++ ++not_done: ++ *budget -= work_done; ++ netdev->quota -= work_done; ++ return 1; ++ ++oom: ++ printk(KERN_ERR "OOM \n"); ++ netif_rx_complete(netdev); ++ return 0; ++ ++done: ++ /* ++ * No more packets on the poll list. Turn the interrupts ++ * back on and we should be able to catch the new ++ * packets in the interrupt handler ++ */ ++ if (!work_done) ++ work_done = 1; ++ ++ *budget -= work_done; ++ netdev->quota -= work_done; ++ ++ spin_lock_irqsave(&titan_ge_eth->lock, flags); ++ ++ /* Remove us from the poll list */ ++ netif_rx_complete(netdev); ++ ++ /* Re-enable interrupts */ ++ titan_ge_enable_int(port_num, titan_ge_eth, netdev); ++ ++ spin_unlock_irqrestore(&titan_ge_eth->lock, flags); ++ ++ return 0; ++} ++ ++/* ++ * Close the network device ++ */ ++int titan_ge_stop(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ ++ spin_lock_irq(&(titan_ge_eth->lock)); ++ titan_ge_eth_stop(netdev); ++ free_irq(netdev->irq, netdev); ++ spin_unlock_irq(&titan_ge_eth->lock); ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Free the Tx ring ++ */ ++static void titan_ge_free_tx_rings(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ unsigned int curr; ++ unsigned long reg_data; ++ ++ /* Stop the Tx DMA */ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG + ++ (port_num << 8)); ++ reg_data |= 0xc0000000; ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_CONFIG + ++ (port_num << 8)), reg_data); ++ ++ /* Disable the TMAC */ ++ reg_data = TITAN_GE_READ(TITAN_GE_TMAC_CONFIG_1 + ++ (port_num << 12)); ++ reg_data &= ~(0x00000001); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_CONFIG_1 + ++ (port_num << 12)), reg_data); ++ ++ for (curr = 0; ++ (titan_ge_eth->tx_ring_skbs) && (curr < TITAN_GE_TX_QUEUE); ++ curr++) { ++ if (titan_ge_eth->tx_skb[curr]) { ++ dev_kfree_skb(titan_ge_eth->tx_skb[curr]); ++ titan_ge_eth->tx_ring_skbs--; ++ } ++ } ++ ++ if (titan_ge_eth->tx_ring_skbs != 0) ++ printk ++ ("%s: Error on Tx descriptor free - could not free %d" ++ " descriptors\n", netdev->name, ++ titan_ge_eth->tx_ring_skbs); ++ ++#ifndef TITAN_RX_RING_IN_SRAM ++ dma_free_coherent(&titan_ge_device[port_num]->dev, ++ titan_ge_eth->tx_desc_area_size, ++ (void *) titan_ge_eth->tx_desc_area, ++ titan_ge_eth->tx_dma); ++#endif ++} ++ ++/* ++ * Free the Rx ring ++ */ ++static void titan_ge_free_rx_rings(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ unsigned int curr; ++ unsigned long reg_data; ++ ++ /* Stop the Rx DMA */ ++ reg_data = TITAN_GE_READ(TITAN_GE_CHANNEL0_CONFIG + ++ (port_num << 8)); ++ reg_data |= 0x000c0000; ++ TITAN_GE_WRITE((TITAN_GE_CHANNEL0_CONFIG + ++ (port_num << 8)), reg_data); ++ ++ /* Disable the RMAC */ ++ reg_data = TITAN_GE_READ(TITAN_GE_RMAC_CONFIG_1 + ++ (port_num << 12)); ++ reg_data &= ~(0x00000001); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_CONFIG_1 + ++ (port_num << 12)), reg_data); ++ ++ for (curr = 0; ++ titan_ge_eth->rx_ring_skbs && (curr < TITAN_GE_RX_QUEUE); ++ curr++) { ++ if (titan_ge_eth->rx_skb[curr]) { ++ dev_kfree_skb(titan_ge_eth->rx_skb[curr]); ++ titan_ge_eth->rx_ring_skbs--; ++ } ++ } ++ ++ if (titan_ge_eth->rx_ring_skbs != 0) ++ printk(KERN_ERR ++ "%s: Error in freeing Rx Ring. %d skb's still" ++ " stuck in RX Ring - ignoring them\n", netdev->name, ++ titan_ge_eth->rx_ring_skbs); ++ ++#ifndef TITAN_RX_RING_IN_SRAM ++ dma_free_coherent(&titan_ge_device[port_num]->dev, ++ titan_ge_eth->rx_desc_area_size, ++ (void *) titan_ge_eth->rx_desc_area, ++ titan_ge_eth->rx_dma); ++#endif ++} ++ ++/* ++ * Actually does the stop of the Ethernet device ++ */ ++static void titan_ge_eth_stop(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ ++ netif_stop_queue(netdev); ++ ++ titan_ge_port_reset(titan_ge_eth->port_num); ++ ++ titan_ge_free_tx_rings(netdev); ++ titan_ge_free_rx_rings(netdev); ++ ++ /* Disable the Tx and Rx Interrupts for all channels */ ++ TITAN_GE_WRITE(TITAN_GE_INTR_XDMA_IE, 0x0); ++} ++ ++/* ++ * Update the MAC address. Note that we have to write the ++ * address in three station registers, 16 bits each. And this ++ * has to be done for TMAC and RMAC ++ */ ++static void titan_ge_update_mac_address(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ unsigned int port_num = titan_ge_eth->port_num; ++ u8 p_addr[6]; ++ ++ memcpy(titan_ge_eth->port_mac_addr, netdev->dev_addr, 6); ++ memcpy(p_addr, netdev->dev_addr, 6); ++ ++ /* Update the Address Filtering Match tables */ ++ titan_ge_update_afx(titan_ge_eth); ++ ++ printk("Station MAC : %d %d %d %d %d %d \n", ++ p_addr[5], p_addr[4], p_addr[3], ++ p_addr[2], p_addr[1], p_addr[0]); ++ ++ /* Set the MAC address here for TMAC and RMAC */ ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_HI + (port_num << 12)), ++ ((p_addr[5] << 8) | p_addr[4])); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_MID + (port_num << 12)), ++ ((p_addr[3] << 8) | p_addr[2])); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_STATION_LOW + (port_num << 12)), ++ ((p_addr[1] << 8) | p_addr[0])); ++ ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_HI + (port_num << 12)), ++ ((p_addr[5] << 8) | p_addr[4])); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_MID + (port_num << 12)), ++ ((p_addr[3] << 8) | p_addr[2])); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_STATION_LOW + (port_num << 12)), ++ ((p_addr[1] << 8) | p_addr[0])); ++} ++ ++/* ++ * Set the MAC address of the Ethernet device ++ */ ++static int titan_ge_set_mac_address(struct net_device *dev, void *addr) ++{ ++ titan_ge_port_info *tp = netdev_priv(dev); ++ struct sockaddr *sa = addr; ++ ++ memcpy(dev->dev_addr, sa->sa_data, dev->addr_len); ++ ++ spin_lock_irq(&tp->lock); ++ titan_ge_update_mac_address(dev); ++ spin_unlock_irq(&tp->lock); ++ ++ return 0; ++} ++ ++/* ++ * Get the Ethernet device stats ++ */ ++static struct net_device_stats *titan_ge_get_stats(struct net_device *netdev) ++{ ++ titan_ge_port_info *titan_ge_eth = netdev_priv(netdev); ++ ++ return &titan_ge_eth->stats; ++} ++ ++/* ++ * Initialize the Rx descriptor ring for the Titan Ge ++ */ ++static int titan_ge_init_rx_desc_ring(titan_ge_port_info * titan_eth_port, ++ int rx_desc_num, ++ int rx_buff_size, ++ unsigned long rx_desc_base_addr, ++ unsigned long rx_buff_base_addr, ++ unsigned long rx_dma) ++{ ++ volatile titan_ge_rx_desc *rx_desc; ++ unsigned long buffer_addr; ++ int index; ++ unsigned long titan_ge_rx_desc_bus = rx_dma; ++ ++ buffer_addr = rx_buff_base_addr; ++ rx_desc = (titan_ge_rx_desc *) rx_desc_base_addr; ++ ++ /* Check alignment */ ++ if (rx_buff_base_addr & 0xF) ++ return 0; ++ ++ /* Check Rx buffer size */ ++ if ((rx_buff_size < 8) || (rx_buff_size > TITAN_GE_MAX_RX_BUFFER)) ++ return 0; ++ ++ /* 64-bit alignment ++ if ((rx_buff_base_addr + rx_buff_size) & 0x7) ++ return 0; */ ++ ++ /* Initialize the Rx desc ring */ ++ for (index = 0; index < rx_desc_num; index++) { ++ titan_ge_rx_desc_bus += sizeof(titan_ge_rx_desc); ++ rx_desc[index].cmd_sts = 0; ++ rx_desc[index].buffer_addr = buffer_addr; ++ titan_eth_port->rx_skb[index] = NULL; ++ buffer_addr += rx_buff_size; ++ } ++ ++ titan_eth_port->rx_curr_desc_q = 0; ++ titan_eth_port->rx_used_desc_q = 0; ++ ++ titan_eth_port->rx_desc_area = (titan_ge_rx_desc *) rx_desc_base_addr; ++ titan_eth_port->rx_desc_area_size = ++ rx_desc_num * sizeof(titan_ge_rx_desc); ++ ++ titan_eth_port->rx_dma = rx_dma; ++ ++ return TITAN_OK; ++} ++ ++/* ++ * Initialize the Tx descriptor ring. Descriptors in the SRAM ++ */ ++static int titan_ge_init_tx_desc_ring(titan_ge_port_info * titan_ge_port, ++ int tx_desc_num, ++ unsigned long tx_desc_base_addr, ++ unsigned long tx_dma) ++{ ++ titan_ge_tx_desc *tx_desc; ++ int index; ++ unsigned long titan_ge_tx_desc_bus = tx_dma; ++ ++ if (tx_desc_base_addr & 0xF) ++ return 0; ++ ++ tx_desc = (titan_ge_tx_desc *) tx_desc_base_addr; ++ ++ for (index = 0; index < tx_desc_num; index++) { ++ titan_ge_port->tx_dma_array[index] = ++ (dma_addr_t) titan_ge_tx_desc_bus; ++ titan_ge_tx_desc_bus += sizeof(titan_ge_tx_desc); ++ tx_desc[index].cmd_sts = 0x0000; ++ tx_desc[index].buffer_len = 0; ++ tx_desc[index].buffer_addr = 0x00000000; ++ titan_ge_port->tx_skb[index] = NULL; ++ } ++ ++ titan_ge_port->tx_curr_desc_q = 0; ++ titan_ge_port->tx_used_desc_q = 0; ++ ++ titan_ge_port->tx_desc_area = (titan_ge_tx_desc *) tx_desc_base_addr; ++ titan_ge_port->tx_desc_area_size = ++ tx_desc_num * sizeof(titan_ge_tx_desc); ++ ++ titan_ge_port->tx_dma = tx_dma; ++ return TITAN_OK; ++} ++ ++/* ++ * Initialize the device as an Ethernet device ++ */ ++static int __init titan_ge_probe(struct device *device) ++{ ++ titan_ge_port_info *titan_ge_eth; ++ struct net_device *netdev; ++ int port = to_platform_device(device)->id; ++ int err; ++ ++ netdev = alloc_etherdev(sizeof(titan_ge_port_info)); ++ if (!netdev) { ++ err = -ENODEV; ++ goto out; ++ } ++ ++ netdev->open = titan_ge_open; ++ netdev->stop = titan_ge_stop; ++ netdev->hard_start_xmit = titan_ge_start_xmit; ++ netdev->get_stats = titan_ge_get_stats; ++ netdev->set_multicast_list = titan_ge_set_multi; ++ netdev->set_mac_address = titan_ge_set_mac_address; ++ ++ /* Tx timeout */ ++ netdev->tx_timeout = titan_ge_tx_timeout; ++ netdev->watchdog_timeo = 2 * HZ; ++ ++ /* Set these to very high values */ ++ netdev->poll = titan_ge_poll; ++ netdev->weight = 64; ++ ++ netdev->tx_queue_len = TITAN_GE_TX_QUEUE; ++ netif_carrier_off(netdev); ++ netdev->base_addr = 0; ++ ++ netdev->change_mtu = titan_ge_change_mtu; ++ ++ titan_ge_eth = netdev_priv(netdev); ++ /* Allocation of memory for the driver structures */ ++ ++ titan_ge_eth->port_num = port; ++ ++ /* Configure the Tx timeout handler */ ++ INIT_WORK(&titan_ge_eth->tx_timeout_task, ++ (void (*)(void *)) titan_ge_tx_timeout_task, netdev); ++ ++ spin_lock_init(&titan_ge_eth->lock); ++ ++ /* set MAC addresses */ ++ memcpy(netdev->dev_addr, titan_ge_mac_addr_base, 6); ++ netdev->dev_addr[5] += port; ++ ++ err = register_netdev(netdev); ++ ++ if (err) ++ goto out_free_netdev; ++ ++ printk(KERN_NOTICE ++ "%s: port %d with MAC address %02x:%02x:%02x:%02x:%02x:%02x\n", ++ netdev->name, port, netdev->dev_addr[0], ++ netdev->dev_addr[1], netdev->dev_addr[2], ++ netdev->dev_addr[3], netdev->dev_addr[4], ++ netdev->dev_addr[5]); ++ ++ printk(KERN_NOTICE "Rx NAPI supported, Tx Coalescing ON \n"); ++ ++ return 0; ++ ++out_free_netdev: ++ kfree(netdev); ++ ++out: ++ return err; ++} ++ ++static void __devexit titan_device_remove(struct device *device) ++{ ++} ++ ++/* ++ * Reset the Ethernet port ++ */ ++static void titan_ge_port_reset(unsigned int port_num) ++{ ++ unsigned int reg_data; ++ ++ /* Stop the Tx port activity */ ++ reg_data = TITAN_GE_READ(TITAN_GE_TMAC_CONFIG_1 + ++ (port_num << 12)); ++ reg_data &= ~(0x0001); ++ TITAN_GE_WRITE((TITAN_GE_TMAC_CONFIG_1 + ++ (port_num << 12)), reg_data); ++ ++ /* Stop the Rx port activity */ ++ reg_data = TITAN_GE_READ(TITAN_GE_RMAC_CONFIG_1 + ++ (port_num << 12)); ++ reg_data &= ~(0x0001); ++ TITAN_GE_WRITE((TITAN_GE_RMAC_CONFIG_1 + ++ (port_num << 12)), reg_data); ++ ++ return; ++} ++ ++/* ++ * Return the Tx desc after use by the XDMA ++ */ ++static int titan_ge_return_tx_desc(titan_ge_port_info * titan_ge_eth, int port) ++{ ++ int tx_desc_used; ++ struct sk_buff *skb; ++ ++ tx_desc_used = titan_ge_eth->tx_used_desc_q; ++ ++ /* return right away */ ++ if (tx_desc_used == titan_ge_eth->tx_curr_desc_q) ++ return TITAN_ERROR; ++ ++ /* Now the critical stuff */ ++ skb = titan_ge_eth->tx_skb[tx_desc_used]; ++ ++ dev_kfree_skb_any(skb); ++ ++ titan_ge_eth->tx_skb[tx_desc_used] = NULL; ++ titan_ge_eth->tx_used_desc_q = ++ (tx_desc_used + 1) % TITAN_GE_TX_QUEUE; ++ ++ return 0; ++} ++ ++/* ++ * Coalescing for the Tx path ++ */ ++static unsigned long titan_ge_tx_coal(unsigned long delay, int port) ++{ ++ unsigned long rx_delay; ++ ++ rx_delay = TITAN_GE_READ(TITAN_GE_INT_COALESCING); ++ delay = (delay << 16) | rx_delay; ++ ++ TITAN_GE_WRITE(TITAN_GE_INT_COALESCING, delay); ++ TITAN_GE_WRITE(0x5038, delay); ++ ++ return delay; ++} ++ ++static struct device_driver titan_soc_driver = { ++ .name = titan_string, ++ .bus = &platform_bus_type, ++ .probe = titan_ge_probe, ++ .remove = __devexit_p(titan_device_remove), ++}; ++ ++static void titan_platform_release (struct device *device) ++{ ++ struct platform_device *pldev; ++ ++ /* free device */ ++ pldev = to_platform_device (device); ++ kfree (pldev); ++} ++ ++/* ++ * Register the Titan GE with the kernel ++ */ ++static int __init titan_ge_init_module(void) ++{ ++ struct platform_device *pldev; ++ unsigned int version, device; ++ int i; ++ ++ printk(KERN_NOTICE ++ "PMC-Sierra TITAN 10/100/1000 Ethernet Driver \n"); ++ ++ titan_ge_base = (unsigned long) ioremap(TITAN_GE_BASE, TITAN_GE_SIZE); ++ if (!titan_ge_base) { ++ printk("Mapping Titan GE failed\n"); ++ goto out; ++ } ++ ++ device = TITAN_GE_READ(TITAN_GE_DEVICE_ID); ++ version = (device & 0x000f0000) >> 16; ++ device &= 0x0000ffff; ++ ++ printk(KERN_NOTICE "Device Id : %x, Version : %x \n", device, version); ++ ++#ifdef TITAN_RX_RING_IN_SRAM ++ titan_ge_sram = (unsigned long) ioremap(TITAN_SRAM_BASE, ++ TITAN_SRAM_SIZE); ++ if (!titan_ge_sram) { ++ printk("Mapping Titan SRAM failed\n"); ++ goto out_unmap_ge; ++ } ++#endif ++ ++ if (driver_register(&titan_soc_driver)) { ++ printk(KERN_ERR "Driver registration failed\n"); ++ goto out_unmap_sram; ++ } ++ ++ for (i = 0; i < 3; i++) { ++ titan_ge_device[i] = NULL; ++ ++ if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL))) ++ continue; ++ ++ memset (pldev, 0, sizeof (*pldev)); ++ pldev->name = titan_string; ++ pldev->id = i; ++ pldev->dev.release = titan_platform_release; ++ titan_ge_device[i] = pldev; ++ ++ if (platform_device_register (pldev)) { ++ kfree (pldev); ++ titan_ge_device[i] = NULL; ++ continue; ++ } ++ ++ if (!pldev->dev.driver) { ++ /* ++ * The driver was not bound to this device, there was ++ * no hardware at this address. Unregister it, as the ++ * release fuction will take care of freeing the ++ * allocated structure ++ */ ++ titan_ge_device[i] = NULL; ++ platform_device_unregister (pldev); ++ } ++ } ++ ++ return 0; ++ ++out_unmap_sram: ++ iounmap((void *)titan_ge_sram); ++ ++out_unmap_ge: ++ iounmap((void *)titan_ge_base); ++ ++out: ++ return -ENOMEM; ++} ++ ++/* ++ * Unregister the Titan GE from the kernel ++ */ ++static void __exit titan_ge_cleanup_module(void) ++{ ++ int i; ++ ++ driver_unregister(&titan_soc_driver); ++ ++ for (i = 0; i < 3; i++) { ++ if (titan_ge_device[i]) { ++ platform_device_unregister (titan_ge_device[i]); ++ titan_ge_device[i] = NULL; ++ } ++ } ++ ++ iounmap((void *)titan_ge_sram); ++ iounmap((void *)titan_ge_base); ++} ++ ++MODULE_AUTHOR("Manish Lachwani <lachwani@pmc-sierra.com>"); ++MODULE_DESCRIPTION("Titan GE Ethernet driver"); ++MODULE_LICENSE("GPL"); ++ ++module_init(titan_ge_init_module); ++module_exit(titan_ge_cleanup_module); +diff --git a/drivers/net/titan_ge.h b/drivers/net/titan_ge.h +new file mode 100644 +index 0000000..3719f78 +--- /dev/null ++++ b/drivers/net/titan_ge.h +@@ -0,0 +1,415 @@ ++#ifndef _TITAN_GE_H_ ++#define _TITAN_GE_H_ ++ ++#include <linux/module.h> ++#include <linux/kernel.h> ++#include <linux/spinlock.h> ++#include <asm/byteorder.h> ++ ++/* ++ * These functions should be later moved to a more generic location since there ++ * will be others accessing it also ++ */ ++ ++/* ++ * This is the way it works: LKB5 Base is at 0x0128. TITAN_BASE is defined in ++ * include/asm/titan_dep.h. TITAN_GE_BASE is the value in the TITAN_GE_LKB5 ++ * register. ++ */ ++ ++#define TITAN_GE_BASE 0xfe000000UL ++#define TITAN_GE_SIZE 0x10000UL ++ ++extern unsigned long titan_ge_base; ++ ++#define TITAN_GE_WRITE(offset, data) \ ++ *(volatile u32 *)(titan_ge_base + (offset)) = (data) ++ ++#define TITAN_GE_READ(offset) *(volatile u32 *)(titan_ge_base + (offset)) ++ ++#ifndef msec_delay ++#define msec_delay(x) do { if(in_interrupt()) { \ ++ /* Don't mdelay in interrupt context! */ \ ++ BUG(); \ ++ } else { \ ++ set_current_state(TASK_UNINTERRUPTIBLE); \ ++ schedule_timeout((x * HZ)/1000); \ ++ } } while(0) ++#endif ++ ++#define TITAN_GE_PORT_0 ++ ++#define TITAN_SRAM_BASE ((OCD_READ(RM9000x2_OCD_LKB13) & ~1) << 4) ++#define TITAN_SRAM_SIZE 0x2000UL ++ ++/* ++ * We may need these constants ++ */ ++#define TITAN_BIT0 0x00000001 ++#define TITAN_BIT1 0x00000002 ++#define TITAN_BIT2 0x00000004 ++#define TITAN_BIT3 0x00000008 ++#define TITAN_BIT4 0x00000010 ++#define TITAN_BIT5 0x00000020 ++#define TITAN_BIT6 0x00000040 ++#define TITAN_BIT7 0x00000080 ++#define TITAN_BIT8 0x00000100 ++#define TITAN_BIT9 0x00000200 ++#define TITAN_BIT10 0x00000400 ++#define TITAN_BIT11 0x00000800 ++#define TITAN_BIT12 0x00001000 ++#define TITAN_BIT13 0x00002000 ++#define TITAN_BIT14 0x00004000 ++#define TITAN_BIT15 0x00008000 ++#define TITAN_BIT16 0x00010000 ++#define TITAN_BIT17 0x00020000 ++#define TITAN_BIT18 0x00040000 ++#define TITAN_BIT19 0x00080000 ++#define TITAN_BIT20 0x00100000 ++#define TITAN_BIT21 0x00200000 ++#define TITAN_BIT22 0x00400000 ++#define TITAN_BIT23 0x00800000 ++#define TITAN_BIT24 0x01000000 ++#define TITAN_BIT25 0x02000000 ++#define TITAN_BIT26 0x04000000 ++#define TITAN_BIT27 0x08000000 ++#define TITAN_BIT28 0x10000000 ++#define TITAN_BIT29 0x20000000 ++#define TITAN_BIT30 0x40000000 ++#define TITAN_BIT31 0x80000000 ++ ++/* Flow Control */ ++#define TITAN_GE_FC_NONE 0x0 ++#define TITAN_GE_FC_FULL 0x1 ++#define TITAN_GE_FC_TX_PAUSE 0x2 ++#define TITAN_GE_FC_RX_PAUSE 0x3 ++ ++/* Duplex Settings */ ++#define TITAN_GE_FULL_DUPLEX 0x1 ++#define TITAN_GE_HALF_DUPLEX 0x2 ++ ++/* Speed settings */ ++#define TITAN_GE_SPEED_1000 0x1 ++#define TITAN_GE_SPEED_100 0x2 ++#define TITAN_GE_SPEED_10 0x3 ++ ++/* Debugging info only */ ++#undef TITAN_DEBUG ++ ++/* Keep the rings in the Titan's SSRAM */ ++#define TITAN_RX_RING_IN_SRAM ++ ++#ifdef CONFIG_64BIT ++#define TITAN_GE_IE_MASK 0xfffffffffb001b64 ++#define TITAN_GE_IE_STATUS 0xfffffffffb001b60 ++#else ++#define TITAN_GE_IE_MASK 0xfb001b64 ++#define TITAN_GE_IE_STATUS 0xfb001b60 ++#endif ++ ++/* Support for Jumbo Frames */ ++#undef TITAN_GE_JUMBO_FRAMES ++ ++/* Rx buffer size */ ++#ifdef TITAN_GE_JUMBO_FRAMES ++#define TITAN_GE_JUMBO_BUFSIZE 9080 ++#else ++#define TITAN_GE_STD_BUFSIZE 1580 ++#endif ++ ++/* ++ * Tx and Rx Interrupt Coalescing parameter. These values are ++ * for 1 Ghz processor. Rx coalescing can be taken care of ++ * by NAPI. NAPI is adaptive and hence useful. Tx coalescing ++ * is not adaptive. Hence, these values need to be adjusted ++ * based on load, CPU speed etc. ++ */ ++#define TITAN_GE_RX_COAL 150 ++#define TITAN_GE_TX_COAL 300 ++ ++#if defined(__BIG_ENDIAN) ++ ++/* Define the Rx descriptor */ ++typedef struct eth_rx_desc { ++ u32 reserved; /* Unused */ ++ u32 buffer_addr; /* CPU buffer address */ ++ u32 cmd_sts; /* Command and Status */ ++ u32 buffer; /* XDMA buffer address */ ++} titan_ge_rx_desc; ++ ++/* Define the Tx descriptor */ ++typedef struct eth_tx_desc { ++ u16 cmd_sts; /* Command, Status and Buffer count */ ++ u16 buffer_len; /* Length of the buffer */ ++ u32 buffer_addr; /* Physical address of the buffer */ ++} titan_ge_tx_desc; ++ ++#elif defined(__LITTLE_ENDIAN) ++ ++/* Define the Rx descriptor */ ++typedef struct eth_rx_desc { ++ u32 buffer_addr; /* CPU buffer address */ ++ u32 reserved; /* Unused */ ++ u32 buffer; /* XDMA buffer address */ ++ u32 cmd_sts; /* Command and Status */ ++} titan_ge_rx_desc; ++ ++/* Define the Tx descriptor */ ++typedef struct eth_tx_desc { ++ u32 buffer_addr; /* Physical address of the buffer */ ++ u16 buffer_len; /* Length of the buffer */ ++ u16 cmd_sts; /* Command, Status and Buffer count */ ++} titan_ge_tx_desc; ++#endif ++ ++/* Default Tx Queue Size */ ++#define TITAN_GE_TX_QUEUE 128 ++#define TITAN_TX_RING_BYTES (TITAN_GE_TX_QUEUE * sizeof(struct eth_tx_desc)) ++ ++/* Default Rx Queue Size */ ++#define TITAN_GE_RX_QUEUE 64 ++#define TITAN_RX_RING_BYTES (TITAN_GE_RX_QUEUE * sizeof(struct eth_rx_desc)) ++ ++/* Packet Structure */ ++typedef struct _pkt_info { ++ unsigned int len; ++ unsigned int cmd_sts; ++ unsigned int buffer; ++ struct sk_buff *skb; ++ unsigned int checksum; ++} titan_ge_packet; ++ ++ ++#define PHYS_CNT 3 ++ ++/* Titan Port specific data structure */ ++typedef struct _eth_port_ctrl { ++ unsigned int port_num; ++ u8 port_mac_addr[6]; ++ ++ /* Rx descriptor pointers */ ++ int rx_curr_desc_q, rx_used_desc_q; ++ ++ /* Tx descriptor pointers */ ++ int tx_curr_desc_q, tx_used_desc_q; ++ ++ /* Rx descriptor area */ ++ volatile titan_ge_rx_desc *rx_desc_area; ++ unsigned int rx_desc_area_size; ++ struct sk_buff* rx_skb[TITAN_GE_RX_QUEUE]; ++ ++ /* Tx Descriptor area */ ++ volatile titan_ge_tx_desc *tx_desc_area; ++ unsigned int tx_desc_area_size; ++ struct sk_buff* tx_skb[TITAN_GE_TX_QUEUE]; ++ ++ /* Timeout task */ ++ struct work_struct tx_timeout_task; ++ ++ /* DMA structures and handles */ ++ dma_addr_t tx_dma; ++ dma_addr_t rx_dma; ++ dma_addr_t tx_dma_array[TITAN_GE_TX_QUEUE]; ++ ++ /* Device lock */ ++ spinlock_t lock; ++ ++ unsigned int tx_ring_skbs; ++ unsigned int rx_ring_size; ++ unsigned int tx_ring_size; ++ unsigned int rx_ring_skbs; ++ ++ struct net_device_stats stats; ++ ++ /* Tx and Rx coalescing */ ++ unsigned long rx_int_coal; ++ unsigned long tx_int_coal; ++ ++ /* Threshold for replenishing the Rx and Tx rings */ ++ unsigned int tx_threshold; ++ unsigned int rx_threshold; ++ ++ /* NAPI work limit */ ++ unsigned int rx_work_limit; ++} titan_ge_port_info; ++ ++/* Titan specific constants */ ++#define TITAN_ETH_PORT_IRQ 3 ++ ++/* Max Rx buffer */ ++#define TITAN_GE_MAX_RX_BUFFER 65536 ++ ++/* Tx and Rx Error */ ++#define TITAN_GE_ERROR ++ ++/* Rx Descriptor Command and Status */ ++ ++#define TITAN_GE_RX_CRC_ERROR TITAN_BIT27 /* crc error */ ++#define TITAN_GE_RX_OVERFLOW_ERROR TITAN_BIT15 /* overflow */ ++#define TITAN_GE_RX_BUFFER_OWNED TITAN_BIT21 /* buffer ownership */ ++#define TITAN_GE_RX_STP TITAN_BIT31 /* start of packet */ ++#define TITAN_GE_RX_BAM TITAN_BIT30 /* broadcast address match */ ++#define TITAN_GE_RX_PAM TITAN_BIT28 /* physical address match */ ++#define TITAN_GE_RX_LAFM TITAN_BIT29 /* logical address filter match */ ++#define TITAN_GE_RX_VLAN TITAN_BIT26 /* virtual lans */ ++#define TITAN_GE_RX_PERR TITAN_BIT19 /* packet error */ ++#define TITAN_GE_RX_TRUNC TITAN_BIT20 /* packet size greater than 32 buffers */ ++ ++/* Tx Descriptor Command */ ++#define TITAN_GE_TX_BUFFER_OWNED TITAN_BIT5 /* buffer ownership */ ++#define TITAN_GE_TX_ENABLE_INTERRUPT TITAN_BIT15 /* Interrupt Enable */ ++ ++/* Return Status */ ++#define TITAN_OK 0x1 /* Good Status */ ++#define TITAN_ERROR 0x2 /* Error Status */ ++ ++/* MIB specific register offset */ ++#define TITAN_GE_MSTATX_STATS_BASE_LOW 0x0800 /* MSTATX COUNTL[15:0] */ ++#define TITAN_GE_MSTATX_STATS_BASE_MID 0x0804 /* MSTATX COUNTM[15:0] */ ++#define TITAN_GE_MSTATX_STATS_BASE_HI 0x0808 /* MSTATX COUNTH[7:0] */ ++#define TITAN_GE_MSTATX_CONTROL 0x0828 /* MSTATX Control */ ++#define TITAN_GE_MSTATX_VARIABLE_SELECT 0x082C /* MSTATX Variable Select */ ++ ++/* MIB counter offsets, add to the TITAN_GE_MSTATX_STATS_BASE_XXX */ ++#define TITAN_GE_MSTATX_RXFRAMESOK 0x0040 ++#define TITAN_GE_MSTATX_RXOCTETSOK 0x0050 ++#define TITAN_GE_MSTATX_RXFRAMES 0x0060 ++#define TITAN_GE_MSTATX_RXOCTETS 0x0070 ++#define TITAN_GE_MSTATX_RXUNICASTFRAMESOK 0x0080 ++#define TITAN_GE_MSTATX_RXBROADCASTFRAMESOK 0x0090 ++#define TITAN_GE_MSTATX_RXMULTICASTFRAMESOK 0x00A0 ++#define TITAN_GE_MSTATX_RXTAGGEDFRAMESOK 0x00B0 ++#define TITAN_GE_MSTATX_RXMACPAUSECONTROLFRAMESOK 0x00C0 ++#define TITAN_GE_MSTATX_RXMACCONTROLFRAMESOK 0x00D0 ++#define TITAN_GE_MSTATX_RXFCSERROR 0x00E0 ++#define TITAN_GE_MSTATX_RXALIGNMENTERROR 0x00F0 ++#define TITAN_GE_MSTATX_RXSYMBOLERROR 0x0100 ++#define TITAN_GE_MSTATX_RXLAYER1ERROR 0x0110 ++#define TITAN_GE_MSTATX_RXINRANGELENGTHERROR 0x0120 ++#define TITAN_GE_MSTATX_RXLONGLENGTHERROR 0x0130 ++#define TITAN_GE_MSTATX_RXLONGLENGTHCRCERROR 0x0140 ++#define TITAN_GE_MSTATX_RXSHORTLENGTHERROR 0x0150 ++#define TITAN_GE_MSTATX_RXSHORTLLENGTHCRCERROR 0x0160 ++#define TITAN_GE_MSTATX_RXFRAMES64OCTETS 0x0170 ++#define TITAN_GE_MSTATX_RXFRAMES65TO127OCTETS 0x0180 ++#define TITAN_GE_MSTATX_RXFRAMES128TO255OCTETS 0x0190 ++#define TITAN_GE_MSTATX_RXFRAMES256TO511OCTETS 0x01A0 ++#define TITAN_GE_MSTATX_RXFRAMES512TO1023OCTETS 0x01B0 ++#define TITAN_GE_MSTATX_RXFRAMES1024TO1518OCTETS 0x01C0 ++#define TITAN_GE_MSTATX_RXFRAMES1519TOMAXSIZE 0x01D0 ++#define TITAN_GE_MSTATX_RXSTATIONADDRESSFILTERED 0x01E0 ++#define TITAN_GE_MSTATX_RXVARIABLE 0x01F0 ++#define TITAN_GE_MSTATX_GENERICADDRESSFILTERED 0x0200 ++#define TITAN_GE_MSTATX_UNICASTFILTERED 0x0210 ++#define TITAN_GE_MSTATX_MULTICASTFILTERED 0x0220 ++#define TITAN_GE_MSTATX_BROADCASTFILTERED 0x0230 ++#define TITAN_GE_MSTATX_HASHFILTERED 0x0240 ++#define TITAN_GE_MSTATX_TXFRAMESOK 0x0250 ++#define TITAN_GE_MSTATX_TXOCTETSOK 0x0260 ++#define TITAN_GE_MSTATX_TXOCTETS 0x0270 ++#define TITAN_GE_MSTATX_TXTAGGEDFRAMESOK 0x0280 ++#define TITAN_GE_MSTATX_TXMACPAUSECONTROLFRAMESOK 0x0290 ++#define TITAN_GE_MSTATX_TXFCSERROR 0x02A0 ++#define TITAN_GE_MSTATX_TXSHORTLENGTHERROR 0x02B0 ++#define TITAN_GE_MSTATX_TXLONGLENGTHERROR 0x02C0 ++#define TITAN_GE_MSTATX_TXSYSTEMERROR 0x02D0 ++#define TITAN_GE_MSTATX_TXMACERROR 0x02E0 ++#define TITAN_GE_MSTATX_TXCARRIERSENSEERROR 0x02F0 ++#define TITAN_GE_MSTATX_TXSQETESTERROR 0x0300 ++#define TITAN_GE_MSTATX_TXUNICASTFRAMESOK 0x0310 ++#define TITAN_GE_MSTATX_TXBROADCASTFRAMESOK 0x0320 ++#define TITAN_GE_MSTATX_TXMULTICASTFRAMESOK 0x0330 ++#define TITAN_GE_MSTATX_TXUNICASTFRAMESATTEMPTED 0x0340 ++#define TITAN_GE_MSTATX_TXBROADCASTFRAMESATTEMPTED 0x0350 ++#define TITAN_GE_MSTATX_TXMULTICASTFRAMESATTEMPTED 0x0360 ++#define TITAN_GE_MSTATX_TXFRAMES64OCTETS 0x0370 ++#define TITAN_GE_MSTATX_TXFRAMES65TO127OCTETS 0x0380 ++#define TITAN_GE_MSTATX_TXFRAMES128TO255OCTETS 0x0390 ++#define TITAN_GE_MSTATX_TXFRAMES256TO511OCTETS 0x03A0 ++#define TITAN_GE_MSTATX_TXFRAMES512TO1023OCTETS 0x03B0 ++#define TITAN_GE_MSTATX_TXFRAMES1024TO1518OCTETS 0x03C0 ++#define TITAN_GE_MSTATX_TXFRAMES1519TOMAXSIZE 0x03D0 ++#define TITAN_GE_MSTATX_TXVARIABLE 0x03E0 ++#define TITAN_GE_MSTATX_RXSYSTEMERROR 0x03F0 ++#define TITAN_GE_MSTATX_SINGLECOLLISION 0x0400 ++#define TITAN_GE_MSTATX_MULTIPLECOLLISION 0x0410 ++#define TITAN_GE_MSTATX_DEFERREDXMISSIONS 0x0420 ++#define TITAN_GE_MSTATX_LATECOLLISIONS 0x0430 ++#define TITAN_GE_MSTATX_ABORTEDDUETOXSCOLLS 0x0440 ++ ++/* Interrupt specific defines */ ++#define TITAN_GE_DEVICE_ID 0x0000 /* Device ID */ ++#define TITAN_GE_RESET 0x0004 /* Reset reg */ ++#define TITAN_GE_TSB_CTRL_0 0x000C /* TSB Control reg 0 */ ++#define TITAN_GE_TSB_CTRL_1 0x0010 /* TSB Control reg 1 */ ++#define TITAN_GE_INTR_GRP0_STATUS 0x0040 /* General Interrupt Group 0 Status */ ++#define TITAN_GE_INTR_XDMA_CORE_A 0x0048 /* XDMA Channel Interrupt Status, Core A*/ ++#define TITAN_GE_INTR_XDMA_CORE_B 0x004C /* XDMA Channel Interrupt Status, Core B*/ ++#define TITAN_GE_INTR_XDMA_IE 0x0058 /* XDMA Channel Interrupt Enable */ ++#define TITAN_GE_SDQPF_ECC_INTR 0x480C /* SDQPF ECC Interrupt Status */ ++#define TITAN_GE_SDQPF_RXFIFO_CTL 0x4828 /* SDQPF RxFifo Control and Interrupt Enb*/ ++#define TITAN_GE_SDQPF_RXFIFO_INTR 0x482C /* SDQPF RxFifo Interrupt Status */ ++#define TITAN_GE_SDQPF_TXFIFO_CTL 0x4928 /* SDQPF TxFifo Control and Interrupt Enb*/ ++#define TITAN_GE_SDQPF_TXFIFO_INTR 0x492C /* SDQPF TxFifo Interrupt Status */ ++#define TITAN_GE_SDQPF_RXFIFO_0 0x4840 /* SDQPF RxFIFO Enable */ ++#define TITAN_GE_SDQPF_TXFIFO_0 0x4940 /* SDQPF TxFIFO Enable */ ++#define TITAN_GE_XDMA_CONFIG 0x5000 /* XDMA Global Configuration */ ++#define TITAN_GE_XDMA_INTR_SUMMARY 0x5010 /* XDMA Interrupt Summary */ ++#define TITAN_GE_XDMA_BUFADDRPRE 0x5018 /* XDMA Buffer Address Prefix */ ++#define TITAN_GE_XDMA_DESCADDRPRE 0x501C /* XDMA Descriptor Address Prefix */ ++#define TITAN_GE_XDMA_PORTWEIGHT 0x502C /* XDMA Port Weight Configuration */ ++ ++/* Rx MAC defines */ ++#define TITAN_GE_RMAC_CONFIG_1 0x1200 /* RMAC Configuration 1 */ ++#define TITAN_GE_RMAC_CONFIG_2 0x1204 /* RMAC Configuration 2 */ ++#define TITAN_GE_RMAC_MAX_FRAME_LEN 0x1208 /* RMAC Max Frame Length */ ++#define TITAN_GE_RMAC_STATION_HI 0x120C /* Rx Station Address High */ ++#define TITAN_GE_RMAC_STATION_MID 0x1210 /* Rx Station Address Middle */ ++#define TITAN_GE_RMAC_STATION_LOW 0x1214 /* Rx Station Address Low */ ++#define TITAN_GE_RMAC_LINK_CONFIG 0x1218 /* RMAC Link Configuration */ ++ ++/* Tx MAC defines */ ++#define TITAN_GE_TMAC_CONFIG_1 0x1240 /* TMAC Configuration 1 */ ++#define TITAN_GE_TMAC_CONFIG_2 0x1244 /* TMAC Configuration 2 */ ++#define TITAN_GE_TMAC_IPG 0x1248 /* TMAC Inter-Packet Gap */ ++#define TITAN_GE_TMAC_STATION_HI 0x124C /* Tx Station Address High */ ++#define TITAN_GE_TMAC_STATION_MID 0x1250 /* Tx Station Address Middle */ ++#define TITAN_GE_TMAC_STATION_LOW 0x1254 /* Tx Station Address Low */ ++#define TITAN_GE_TMAC_MAX_FRAME_LEN 0x1258 /* TMAC Max Frame Length */ ++#define TITAN_GE_TMAC_MIN_FRAME_LEN 0x125C /* TMAC Min Frame Length */ ++#define TITAN_GE_TMAC_PAUSE_FRAME_TIME 0x1260 /* TMAC Pause Frame Time */ ++#define TITAN_GE_TMAC_PAUSE_FRAME_INTERVAL 0x1264 /* TMAC Pause Frame Interval */ ++ ++/* GMII register */ ++#define TITAN_GE_GMII_INTERRUPT_STATUS 0x1348 /* GMII Interrupt Status */ ++#define TITAN_GE_GMII_CONFIG_GENERAL 0x134C /* GMII Configuration General */ ++#define TITAN_GE_GMII_CONFIG_MODE 0x1350 /* GMII Configuration Mode */ ++ ++/* Tx and Rx XDMA defines */ ++#define TITAN_GE_INT_COALESCING 0x5030 /* Interrupt Coalescing */ ++#define TITAN_GE_CHANNEL0_CONFIG 0x5040 /* Channel 0 XDMA config */ ++#define TITAN_GE_CHANNEL0_INTERRUPT 0x504c /* Channel 0 Interrupt Status */ ++#define TITAN_GE_GDI_INTERRUPT_ENABLE 0x5050 /* IE for the GDI Errors */ ++#define TITAN_GE_CHANNEL0_PACKET 0x5060 /* Channel 0 Packet count */ ++#define TITAN_GE_CHANNEL0_BYTE 0x5064 /* Channel 0 Byte count */ ++#define TITAN_GE_CHANNEL0_TX_DESC 0x5054 /* Channel 0 Tx first desc */ ++#define TITAN_GE_CHANNEL0_RX_DESC 0x5058 /* Channel 0 Rx first desc */ ++ ++/* AFX (Address Filter Exact) register offsets for Slice 0 */ ++#define TITAN_GE_AFX_EXACT_MATCH_LOW 0x1100 /* AFX Exact Match Address Low*/ ++#define TITAN_GE_AFX_EXACT_MATCH_MID 0x1104 /* AFX Exact Match Address Mid*/ ++#define TITAN_GE_AFX_EXACT_MATCH_HIGH 0x1108 /* AFX Exact Match Address Hi */ ++#define TITAN_GE_AFX_EXACT_MATCH_VID 0x110C /* AFX Exact Match VID */ ++#define TITAN_GE_AFX_MULTICAST_HASH_LOW 0x1110 /* AFX Multicast HASH Low */ ++#define TITAN_GE_AFX_MULTICAST_HASH_MIDLOW 0x1114 /* AFX Multicast HASH MidLow */ ++#define TITAN_GE_AFX_MULTICAST_HASH_MIDHI 0x1118 /* AFX Multicast HASH MidHi */ ++#define TITAN_GE_AFX_MULTICAST_HASH_HI 0x111C /* AFX Multicast HASH Hi */ ++#define TITAN_GE_AFX_ADDRS_FILTER_CTRL_0 0x1120 /* AFX Address Filter Ctrl 0 */ ++#define TITAN_GE_AFX_ADDRS_FILTER_CTRL_1 0x1124 /* AFX Address Filter Ctrl 1 */ ++#define TITAN_GE_AFX_ADDRS_FILTER_CTRL_2 0x1128 /* AFX Address Filter Ctrl 2 */ ++ ++/* Traffic Groomer block */ ++#define TITAN_GE_TRTG_CONFIG 0x1000 /* TRTG Config */ ++ ++#endif /* _TITAN_GE_H_ */ ++ +diff --git a/drivers/net/titan_mdio.c b/drivers/net/titan_mdio.c +new file mode 100644 +index 0000000..8a8785b +--- /dev/null ++++ b/drivers/net/titan_mdio.c +@@ -0,0 +1,217 @@ ++/* ++ * drivers/net/titan_mdio.c - Driver for Titan ethernet ports ++ * ++ * Copyright (C) 2003 PMC-Sierra Inc. ++ * Author : Manish Lachwani (lachwani@pmc-sierra.com) ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2 ++ * of the License, or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * Management Data IO (MDIO) driver for the Titan GMII. Interacts with the Marvel PHY ++ * on the Titan. No support for the TBI as yet. ++ * ++ */ ++ ++#include "titan_mdio.h" ++ ++#define MDIO_DEBUG ++ ++/* ++ * Local constants ++ */ ++#define MAX_CLKA 1023 ++#define MAX_PHY_DEV 31 ++#define MAX_PHY_REG 31 ++#define WRITEADDRS_OPCODE 0x0 ++#define READ_OPCODE 0x2 ++#define WRITE_OPCODE 0x1 ++#define MAX_MDIO_POLL 100 ++ ++/* ++ * Titan MDIO and SCMB registers ++ */ ++#define TITAN_GE_SCMB_CONTROL 0x01c0 /* SCMB Control */ ++#define TITAN_GE_SCMB_CLKA 0x01c4 /* SCMB Clock A */ ++#define TITAN_GE_MDIO_COMMAND 0x01d0 /* MDIO Command */ ++#define TITAN_GE_MDIO_DEVICE_PORT_ADDRESS 0x01d4 /* MDIO Device and Port addrs */ ++#define TITAN_GE_MDIO_DATA 0x01d8 /* MDIO Data */ ++#define TITAN_GE_MDIO_INTERRUPTS 0x01dC /* MDIO Interrupts */ ++ ++/* ++ * Function to poll the MDIO ++ */ ++static int titan_ge_mdio_poll(void) ++{ ++ int i, val; ++ ++ for (i = 0; i < MAX_MDIO_POLL; i++) { ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_COMMAND); ++ ++ if (!(val & 0x8000)) ++ return TITAN_GE_MDIO_GOOD; ++ } ++ ++ return TITAN_GE_MDIO_ERROR; ++} ++ ++ ++/* ++ * Initialize and configure the MDIO ++ */ ++int titan_ge_mdio_setup(titan_ge_mdio_config *titan_mdio) ++{ ++ unsigned long val; ++ ++ /* Reset the SCMB and program into MDIO mode*/ ++ TITAN_GE_MDIO_WRITE(TITAN_GE_SCMB_CONTROL, 0x9000); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_SCMB_CONTROL, 0x1000); ++ ++ /* CLK A */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_SCMB_CLKA); ++ val = ( (val & ~(0x03ff)) | (titan_mdio->clka & 0x03ff)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_SCMB_CLKA, val); ++ ++ /* Preamble Suppresion */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_COMMAND); ++ val = ( (val & ~(0x0001)) | (titan_mdio->mdio_spre & 0x0001)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_COMMAND, val); ++ ++ /* MDIO mode */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS); ++ val = ( (val & ~(0x4000)) | (titan_mdio->mdio_mode & 0x4000)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS, val); ++ ++ return TITAN_GE_MDIO_GOOD; ++} ++ ++/* ++ * Set the PHY address in indirect mode ++ */ ++int titan_ge_mdio_inaddrs(int dev_addr, int reg_addr) ++{ ++ volatile unsigned long val; ++ ++ /* Setup the PHY device */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS); ++ val = ( (val & ~(0x1f00)) | ( (dev_addr << 8) & 0x1f00)); ++ val = ( (val & ~(0x001f)) | ( reg_addr & 0x001f)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS, val); ++ ++ /* Write the new address */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_COMMAND); ++ val = ( (val & ~(0x0300)) | ( (WRITEADDRS_OPCODE << 8) & 0x0300)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_COMMAND, val); ++ ++ return TITAN_GE_MDIO_GOOD; ++} ++ ++/* ++ * Read the MDIO register. This is what the individual parametes mean: ++ * ++ * dev_addr : PHY ID ++ * reg_addr : register offset ++ * ++ * See the spec for the Titan MAC. We operate in the Direct Mode. ++ */ ++ ++#define MAX_RETRIES 2 ++ ++int titan_ge_mdio_read(int dev_addr, int reg_addr, unsigned int *pdata) ++{ ++ volatile unsigned long val; ++ int retries = 0; ++ ++ /* Setup the PHY device */ ++ ++again: ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS); ++ val = ( (val & ~(0x1f00)) | ( (dev_addr << 8) & 0x1f00)); ++ val = ( (val & ~(0x001f)) | ( reg_addr & 0x001f)); ++ val |= 0x4000; ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS, val); ++ ++ udelay(30); ++ ++ /* Issue the read command */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_COMMAND); ++ val = ( (val & ~(0x0300)) | ( (READ_OPCODE << 8) & 0x0300)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_COMMAND, val); ++ ++ udelay(30); ++ ++ if (titan_ge_mdio_poll() != TITAN_GE_MDIO_GOOD) ++ return TITAN_GE_MDIO_ERROR; ++ ++ *pdata = (unsigned int)TITAN_GE_MDIO_READ(TITAN_GE_MDIO_DATA); ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_INTERRUPTS); ++ ++ udelay(30); ++ ++ if (val & 0x2) { ++ if (retries == MAX_RETRIES) ++ return TITAN_GE_MDIO_ERROR; ++ else { ++ retries++; ++ goto again; ++ } ++ } ++ ++ return TITAN_GE_MDIO_GOOD; ++} ++ ++/* ++ * Write to the MDIO register ++ * ++ * dev_addr : PHY ID ++ * reg_addr : register that needs to be written to ++ * ++ */ ++int titan_ge_mdio_write(int dev_addr, int reg_addr, unsigned int data) ++{ ++ volatile unsigned long val; ++ ++ if (titan_ge_mdio_poll() != TITAN_GE_MDIO_GOOD) ++ return TITAN_GE_MDIO_ERROR; ++ ++ /* Setup the PHY device */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS); ++ val = ( (val & ~(0x1f00)) | ( (dev_addr << 8) & 0x1f00)); ++ val = ( (val & ~(0x001f)) | ( reg_addr & 0x001f)); ++ val |= 0x4000; ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_DEVICE_PORT_ADDRESS, val); ++ ++ udelay(30); ++ ++ /* Setup the data to write */ ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_DATA, data); ++ ++ udelay(30); ++ ++ /* Issue the write command */ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_COMMAND); ++ val = ( (val & ~(0x0300)) | ( (WRITE_OPCODE << 8) & 0x0300)); ++ TITAN_GE_MDIO_WRITE(TITAN_GE_MDIO_COMMAND, val); ++ ++ udelay(30); ++ ++ if (titan_ge_mdio_poll() != TITAN_GE_MDIO_GOOD) ++ return TITAN_GE_MDIO_ERROR; ++ ++ val = TITAN_GE_MDIO_READ(TITAN_GE_MDIO_INTERRUPTS); ++ if (val & 0x2) ++ return TITAN_GE_MDIO_ERROR; ++ ++ return TITAN_GE_MDIO_GOOD; ++} ++ +diff --git a/drivers/net/titan_mdio.h b/drivers/net/titan_mdio.h +new file mode 100644 +index 0000000..5d23344 +--- /dev/null ++++ b/drivers/net/titan_mdio.h +@@ -0,0 +1,56 @@ ++/* ++ * MDIO used to interact with the PHY when using GMII/MII ++ */ ++#ifndef _TITAN_MDIO_H ++#define _TITAN_MDIO_H ++ ++#include <linux/netdevice.h> ++#include <linux/workqueue.h> ++#include <linux/delay.h> ++#include "titan_ge.h" ++ ++ ++#define TITAN_GE_MDIO_ERROR (-9000) ++#define TITAN_GE_MDIO_GOOD 0 ++ ++#define TITAN_GE_MDIO_BASE titan_ge_base ++ ++#define TITAN_GE_MDIO_READ(offset) \ ++ *(volatile u32 *)(titan_ge_base + (offset)) ++ ++#define TITAN_GE_MDIO_WRITE(offset, data) \ ++ *(volatile u32 *)(titan_ge_base + (offset)) = (data) ++ ++ ++/* GMII specific registers */ ++#define TITAN_GE_MARVEL_PHY_ID 0x00 ++#define TITAN_PHY_AUTONEG_ADV 0x04 ++#define TITAN_PHY_LP_ABILITY 0x05 ++#define TITAN_GE_MDIO_MII_CTRL 0x09 ++#define TITAN_GE_MDIO_MII_EXTENDED 0x0f ++#define TITAN_GE_MDIO_PHY_CTRL 0x10 ++#define TITAN_GE_MDIO_PHY_STATUS 0x11 ++#define TITAN_GE_MDIO_PHY_IE 0x12 ++#define TITAN_GE_MDIO_PHY_IS 0x13 ++#define TITAN_GE_MDIO_PHY_LED 0x18 ++#define TITAN_GE_MDIO_PHY_LED_OVER 0x19 ++#define PHY_ANEG_TIME_WAIT 45 /* 45 seconds wait time */ ++ ++/* ++ * MDIO Config Structure ++ */ ++typedef struct { ++ unsigned int clka; ++ int mdio_spre; ++ int mdio_mode; ++} titan_ge_mdio_config; ++ ++/* ++ * Function Prototypes ++ */ ++int titan_ge_mdio_setup(titan_ge_mdio_config *); ++int titan_ge_mdio_inaddrs(int, int); ++int titan_ge_mdio_read(int, int, unsigned int *); ++int titan_ge_mdio_write(int, int, unsigned int); ++ ++#endif /* _TITAN_MDIO_H */ +diff --git a/drivers/net/wireless/rtl818x/rtl8187/rfkill.c b/drivers/net/wireless/rtl818x/rtl8187/rfkill.c +index 3411671..4d252c1 100644 +--- a/drivers/net/wireless/rtl818x/rtl8187/rfkill.c ++++ b/drivers/net/wireless/rtl818x/rtl8187/rfkill.c +@@ -22,6 +22,10 @@ + + static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) + { ++#ifdef CONFIG_LEMOTE_MACH2F ++ /* Allow users to activate rfkill through only the /sys interface */ ++ return 1; ++#else + u8 gpio; + + gpio = rtl818x_ioread8(priv, &priv->map->GPIO0); +@@ -29,6 +33,7 @@ static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) + gpio = rtl818x_ioread8(priv, &priv->map->GPIO1); + + return gpio & priv->rfkill_mask; ++#endif + } + + void rtl8187_rfkill_init(struct ieee80211_hw *hw) +diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig +index 09fde58..eacabd1 100644 +--- a/drivers/platform/Kconfig ++++ b/drivers/platform/Kconfig +@@ -4,5 +4,8 @@ endif + if GOLDFISH + source "drivers/platform/goldfish/Kconfig" + endif ++if MIPS ++source "drivers/platform/mips/Kconfig" ++endif + + source "drivers/platform/chrome/Kconfig" +diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile +index 3656b7b..ca26925 100644 +--- a/drivers/platform/Makefile ++++ b/drivers/platform/Makefile +@@ -3,6 +3,7 @@ + # + + obj-$(CONFIG_X86) += x86/ ++obj-$(CONFIG_MIPS) += mips/ + obj-$(CONFIG_OLPC) += olpc/ + obj-$(CONFIG_GOLDFISH) += goldfish/ + obj-$(CONFIG_CHROME_PLATFORMS) += chrome/ +diff --git a/drivers/platform/mips/Kconfig b/drivers/platform/mips/Kconfig +new file mode 100644 +index 0000000..722d690 +--- /dev/null ++++ b/drivers/platform/mips/Kconfig +@@ -0,0 +1,60 @@ ++# ++# MIPS Platform Specific Drivers ++# ++ ++menuconfig MIPS_PLATFORM_DEVICES ++ bool "MIPS Platform Specific Device Drivers" ++ default y ++ help ++ Say Y here to get to see options for device drivers of various ++ MIPS platforms, including vendor-specific netbook/laptop/pc extension ++ drivers. This option alone does not add any kernel code. ++ ++ If you say N, all options in this submenu will be skipped and disabled. ++ ++if MIPS_PLATFORM_DEVICES ++ ++config LEMOTE_YEELOONG2F ++ tristate "Lemote YeeLoong Laptop" ++ depends on LEMOTE_MACH2F ++ select BACKLIGHT_LCD_SUPPORT ++ select LCD_CLASS_DEVICE ++ select BACKLIGHT_CLASS_DEVICE ++ select POWER_SUPPLY ++ select HWMON ++ select VIDEO_OUTPUT_CONTROL ++ select INPUT_SPARSEKMAP ++ select INPUT_EVDEV ++ depends on INPUT ++ default m ++ help ++ YeeLoong netbook is a mini laptop made by Lemote, which is basically ++ compatible to FuLoong2F mini PC, but it has an extra Embedded ++ Controller(kb3310b) for battery, hotkey, backlight, temperature and ++ fan management. ++ ++config LEMOTE_LYNLOONG2F ++ tristate "Lemote LynLoong PC" ++ depends on LEMOTE_MACH2F ++ select BACKLIGHT_LCD_SUPPORT ++ select BACKLIGHT_CLASS_DEVICE ++ select VIDEO_OUTPUT_CONTROL ++ default m ++ help ++ LynLoong PC is an AllINONE machine made by Lemote, which is basically ++ compatible to FuLoong2F Mini PC, the only difference is that it has a ++ size-fixed screen: 1360x768 with sisfb video driver. and also, it has ++ its own specific suspend support. ++ ++config GDIUM_LAPTOP ++ tristate "GDIUM laptop extras" ++ depends on DEXXON_GDIUM ++ select POWER_SUPPLY ++ select I2C ++ select INPUT_POLLDEV ++ default m ++ help ++ This mini-driver drives the ST7 chipset present in the Gdium laptops. ++ This gives battery support, wlan rfkill. ++ ++endif # MIPS_PLATFORM_DEVICES +diff --git a/drivers/platform/mips/Makefile b/drivers/platform/mips/Makefile +new file mode 100644 +index 0000000..f013e78 +--- /dev/null ++++ b/drivers/platform/mips/Makefile +@@ -0,0 +1,9 @@ ++# ++# Makefile for MIPS Platform-Specific Drivers ++# ++ ++obj-$(CONFIG_LEMOTE_YEELOONG2F) += yeeloong_laptop.o # yeeloong_ecrom.o ++CFLAGS_yeeloong_laptop.o = -I$(srctree)/arch/mips/loongson/lemote-2f ++ ++obj-$(CONFIG_LEMOTE_LYNLOONG2F) += lynloong_pc.o ++obj-$(CONFIG_GDIUM_LAPTOP) += gdium_laptop.o +diff --git a/drivers/platform/mips/gdium_laptop.c b/drivers/platform/mips/gdium_laptop.c +new file mode 100644 +index 0000000..41a65ad +--- /dev/null ++++ b/drivers/platform/mips/gdium_laptop.c +@@ -0,0 +1,927 @@ ++/* ++ * gdium_laptop -- Gdium laptop extras ++ * ++ * Arnaud Patard <apatard@mandriva.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ */ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/platform_device.h> ++#include <linux/input-polldev.h> ++#include <linux/debugfs.h> ++#include <linux/seq_file.h> ++#include <linux/i2c.h> ++#include <linux/mutex.h> ++#include <linux/power_supply.h> ++#include <linux/workqueue.h> ++#include <linux/delay.h> ++#include <linux/slab.h> ++#include <asm/gpio.h> ++ ++/* For input device */ ++#define SCAN_INTERVAL 150 ++ ++/* For battery status */ ++#define BAT_SCAN_INTERVAL 500 ++ ++#define EC_FIRM_VERSION 0 ++ ++#if CONFIG_GDIUM_VERSION > 2 ++#define EC_REG_BASE 1 ++#else ++#define EC_REG_BASE 0 ++#endif ++ ++#define EC_STATUS (EC_REG_BASE+0) ++#define EC_STATUS_LID (1<<0) ++#define EC_STATUS_PWRBUT (1<<1) ++#define EC_STATUS_BATID (1<<2) /* this bit has no real meaning on v2. */ ++ /* Same as EC_STATUS_ADAPT */ ++ /* but on v3 it's BATID which mean bat present */ ++#define EC_STATUS_SYS_POWER (1<<3) ++#define EC_STATUS_WLAN (1<<4) ++#define EC_STATUS_ADAPT (1<<5) ++ ++#define EC_CTRL (EC_REG_BASE+1) ++#define EC_CTRL_DDR_CLK (1<<0) ++#define EC_CTRL_CHARGE_LED (1<<1) ++#define EC_CTRL_BEEP (1<<2) ++#define EC_CTRL_SUSB (1<<3) /* memory power */ ++#define EC_CTRL_TRICKLE (1<<4) ++#define EC_CTRL_WLAN_EN (1<<5) ++#define EC_CTRL_SUSC (1<<6) /* main power */ ++#define EC_CTRL_CHARGE_EN (1<<7) ++ ++#define EC_BAT_LOW (EC_REG_BASE+2) ++#define EC_BAT_HIGH (EC_REG_BASE+3) ++ ++#define EC_SIGN (EC_REG_BASE+4) ++#define EC_SIGN_OS 0xAE /* write 0xae to control pm stuff */ ++#define EC_SIGN_EC 0x00 /* write 0x00 to let the st7 manage pm stuff */ ++ ++#if 0 ++#define EC_TEST (EC_REG_BASE+5) /* Depending on firmware version this register */ ++ /* may be the programmation register so don't play */ ++ /* with it */ ++#endif ++ ++#define BAT_VOLT_PRESENT 500000 /* Min voltage to consider battery present uV */ ++#define BAT_MIN 7000000 /* Min battery voltage in uV */ ++#define BAT_MIN_MV 7000 /* Min battery voltage in mV */ ++#define BAT_TRICKLE_EN 8000000 /* Charging at 1.4A before 8.0V and then charging at 0.25A */ ++#define BAT_MAX 7950000 /* Max battery voltage ~8V in V */ ++#define BAT_MAX_MV 7950 /* Max battery voltage ~8V in V */ ++#define BAT_READ_ERROR 300000 /* battery read error of 0.3V */ ++#define BAT_READ_ERROR_MV 300 /* battery read error of 0.3V */ ++ ++#define SM502_WLAN_ON (224+16)/* SM502 GPIO16 may be used on gdium v2 (v3?) as wlan_on */ ++ /* when R422 is connected */ ++ ++static unsigned char verbose; ++static unsigned char gpio16; ++static unsigned char ec; ++module_param(verbose, byte, S_IRUGO | S_IWUSR); ++MODULE_PARM_DESC(verbose, "Add some debugging messages"); ++module_param(gpio16, byte, S_IRUGO); ++MODULE_PARM_DESC(gpio16, "Enable wlan_on signal on SM502"); ++module_param(ec, byte, S_IRUGO); ++MODULE_PARM_DESC(ec, "Let the ST7 handle the battery (default OS)"); ++ ++struct gdium_laptop_data { ++ struct i2c_client *client; ++ struct input_polled_dev *input_polldev; ++ struct dentry *debugfs; ++ struct mutex mutex; ++ struct platform_device *bat_pdev; ++ struct power_supply gdium_ac; ++ struct power_supply gdium_battery; ++ struct workqueue_struct *workqueue; ++ struct delayed_work work; ++ char charge_cmd; ++ /* important registers value */ ++ char status; ++ char ctrl; ++ /* mV */ ++ int battery_level; ++ char version; ++}; ++ ++/**********************************************************************/ ++/* Low level I2C functions */ ++/* All are supposed to be called with mutex held */ ++/**********************************************************************/ ++/* ++ * Return battery voltage in mV ++ * >= 0 battery voltage ++ * < 0 error ++ */ ++static s32 ec_read_battery(struct i2c_client *client) ++{ ++ unsigned char bat_low, bat_high; ++ s32 data; ++ unsigned int ret; ++ ++ /* ++ * a = battery high ++ * b = battery low ++ * bat = a << 2 | b & 0x03; ++ * battery voltage = (bat / 1024) * 5 * 2 ++ */ ++ data = i2c_smbus_read_byte_data(client, EC_BAT_LOW); ++ if (data < 0) { ++ dev_err(&client->dev, "ec_read_bat: read bat_low failed\n"); ++ return data; ++ } ++ bat_low = data & 0xff; ++ if (verbose) ++ dev_info(&client->dev, "bat_low %x\n", bat_low); ++ ++ data = i2c_smbus_read_byte_data(client, EC_BAT_HIGH); ++ if (data < 0) { ++ dev_err(&client->dev, "ec_read_bat: read bat_high failed\n"); ++ return data; ++ } ++ bat_high = data & 0xff; ++ if (verbose) ++ dev_info(&client->dev, "bat_high %x\n", bat_high); ++ ++ ret = (bat_high << 2) | (bat_low & 3); ++ /* ++ * mV ++ */ ++ ret = (ret * 5 * 2) * 1000 / 1024; ++ ++ return ret; ++} ++ ++static s32 ec_read_version(struct i2c_client *client) ++{ ++#if CONFIG_GDIUM_VERSION > 2 ++ return i2c_smbus_read_byte_data(client, EC_FIRM_VERSION); ++#else ++ return 0; ++#endif ++} ++ ++static s32 ec_read_status(struct i2c_client *client) ++{ ++ return i2c_smbus_read_byte_data(client, EC_STATUS); ++} ++ ++static s32 ec_read_ctrl(struct i2c_client *client) ++{ ++ return i2c_smbus_read_byte_data(client, EC_CTRL); ++} ++ ++static s32 ec_write_ctrl(struct i2c_client *client, unsigned char newvalue) ++{ ++ return i2c_smbus_write_byte_data(client, EC_CTRL, newvalue); ++} ++ ++static s32 ec_read_sign(struct i2c_client *client) ++{ ++ return i2c_smbus_read_byte_data(client, EC_SIGN); ++} ++ ++static s32 ec_write_sign(struct i2c_client *client, unsigned char sign) ++{ ++ unsigned char value; ++ s32 ret; ++ ++ ret = i2c_smbus_write_byte_data(client, EC_SIGN, sign); ++ if (ret < 0) { ++ dev_err(&client->dev, "ec_set_control: write failed\n"); ++ return ret; ++ } ++ ++ value = ec_read_sign(client); ++ if (value != sign) { ++ dev_err(&client->dev, "Failed to set control to %s\n", ++ sign == EC_SIGN_OS ? "OS" : "EC"); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++#if 0 ++static int ec_power_off(struct i2c_client *client) ++{ ++ char value; ++ int ret; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) { ++ dev_err(&client->dev, "ec_power_off: read failed\n"); ++ return value; ++ } ++ value &= ~(EC_CTRL_SUSB | EC_CTRL_SUSC); ++ ret = ec_write_ctrl(client, value); ++ if (ret < 0) { ++ dev_err(&client->dev, "ec_power_off: write failed\n"); ++ return ret; ++ } ++ ++ return 0; ++} ++#endif ++ ++static s32 ec_wlan_status(struct i2c_client *client) ++{ ++ s32 value; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) ++ return value; ++ ++ return (value & EC_CTRL_WLAN_EN) ? 1 : 0; ++} ++ ++static s32 ec_wlan_en(struct i2c_client *client, int on) ++{ ++ s32 value; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) ++ return value; ++ ++ value &= ~EC_CTRL_WLAN_EN; ++ if (on) ++ value |= EC_CTRL_WLAN_EN; ++ ++ return ec_write_ctrl(client, value&0xff); ++} ++ ++#if 0 ++static s32 ec_led_status(struct i2c_client *client) ++{ ++ s32 value; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) ++ return value; ++ ++ return (value & EC_CTRL_CHARGE_LED) ? 1 : 0; ++} ++#endif ++ ++/* Changing the charging led status has never worked */ ++static s32 ec_led_en(struct i2c_client *client, int on) ++{ ++#if 0 ++ s32 value; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) ++ return value; ++ ++ value &= ~EC_CTRL_CHARGE_LED; ++ if (on) ++ value |= EC_CTRL_CHARGE_LED; ++ return ec_write_ctrl(client, value&0xff); ++#else ++ return 0; ++#endif ++} ++ ++static s32 ec_charge_en(struct i2c_client *client, int on, int trickle) ++{ ++ s32 value; ++ s32 set = 0; ++ ++ value = ec_read_ctrl(client); ++ if (value < 0) ++ return value; ++ ++ if (on) ++ set |= EC_CTRL_CHARGE_EN; ++ if (trickle) ++ set |= EC_CTRL_TRICKLE; ++ ++ /* Be clever : don't change values if you don't need to */ ++ if ((value & (EC_CTRL_CHARGE_EN | EC_CTRL_TRICKLE)) == set) ++ return 0; ++ ++ value &= ~(EC_CTRL_CHARGE_EN | EC_CTRL_TRICKLE); ++ value |= set; ++ ec_led_en(client, on); ++ return ec_write_ctrl(client, (unsigned char)(value&0xff)); ++ ++} ++ ++/**********************************************************************/ ++/* Input functions */ ++/**********************************************************************/ ++struct gdium_keys { ++ int last_state; ++ int key_code; ++ int mask; ++ int type; ++}; ++ ++static struct gdium_keys gkeys[] = { ++ { ++ .key_code = KEY_WLAN, ++ .mask = EC_STATUS_WLAN, ++ .type = EV_KEY, ++ }, ++ { ++ .key_code = KEY_POWER, ++ .mask = EC_STATUS_PWRBUT, ++ .type = EV_KEY, /*EV_PWR,*/ ++ }, ++ { ++ .key_code = SW_LID, ++ .mask = EC_STATUS_LID, ++ .type = EV_SW, ++ }, ++}; ++ ++static void gdium_laptop_keys_poll(struct input_polled_dev *dev) ++{ ++ int state, i; ++ struct gdium_laptop_data *data = dev->private; ++ struct i2c_client *client = data->client; ++ struct input_dev *input = dev->input; ++ s32 status; ++ ++ mutex_lock(&data->mutex); ++ status = ec_read_status(client); ++ mutex_unlock(&data->mutex); ++ ++ if (status < 0) { ++ /* ++ * Don't know exactly which version of the firmware ++ * has this bug but when the power button is pressed ++ * there are i2c read errors :( ++ */ ++ if ((data->version >= 0x13) && !gkeys[1].last_state) { ++ input_event(input, EV_KEY, KEY_POWER, 1); ++ input_sync(input); ++ gkeys[1].last_state = 1; ++ } ++ return; ++ } ++ ++ for (i = 0; i < ARRAY_SIZE(gkeys); i++) { ++ state = status & gkeys[i].mask; ++ if (state != gkeys[i].last_state) { ++ gkeys[i].last_state = state; ++ /* for power key, we want power & key press/release event */ ++ if (gkeys[i].type == EV_PWR) { ++ input_event(input, EV_KEY, gkeys[i].key_code, !!state); ++ input_sync(input); ++ } ++ /* Disable wifi on key press but not key release */ ++ /* ++ * On firmware >= 0x13 the EC_STATUS_WLAN has it's ++ * original meaning of Wifi status and no more the ++ * wifi button status so we have to ignore the event ++ * on theses versions ++ */ ++ if (state && (gkeys[i].key_code == KEY_WLAN) && (data->version < 0x13)) { ++ mutex_lock(&data->mutex); ++ ec_wlan_en(client, !ec_wlan_status(client)); ++ if (gpio16) ++ gpio_set_value(SM502_WLAN_ON, !ec_wlan_status(client)); ++ mutex_unlock(&data->mutex); ++ } ++ ++ input_event(input, gkeys[i].type, gkeys[i].key_code, !!state); ++ input_sync(input); ++ } ++ } ++} ++ ++static int gdium_laptop_input_init(struct gdium_laptop_data *data) ++{ ++ struct i2c_client *client = data->client; ++ struct input_dev *input; ++ int ret, i; ++ ++ data->input_polldev = input_allocate_polled_device(); ++ if (!data->input_polldev) { ++ ret = -ENOMEM; ++ goto err; ++ } ++ ++ input = data->input_polldev->input; ++ input->evbit[0] = BIT(EV_KEY) | BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); ++ data->input_polldev->poll = gdium_laptop_keys_poll; ++ data->input_polldev->poll_interval = SCAN_INTERVAL; ++ data->input_polldev->private = data; ++ input->name = "gdium-keys"; ++ input->dev.parent = &client->dev; ++ ++ input->id.bustype = BUS_HOST; ++ input->id.vendor = 0x0001; ++ input->id.product = 0x0001; ++ input->id.version = 0x0100; ++ ++ for (i = 0; i < ARRAY_SIZE(gkeys); i++) ++ input_set_capability(input, gkeys[i].type, gkeys[i].key_code); ++ ++ ret = input_register_polled_device(data->input_polldev); ++ if (ret) { ++ dev_err(&client->dev, "Unable to register button device\n"); ++ goto err_poll_dev; ++ } ++ ++ return 0; ++ ++err_poll_dev: ++ input_free_polled_device(data->input_polldev); ++err: ++ return ret; ++} ++ ++static void gdium_laptop_input_exit(struct gdium_laptop_data *data) ++{ ++ input_unregister_polled_device(data->input_polldev); ++ input_free_polled_device(data->input_polldev); ++} ++ ++/**********************************************************************/ ++/* Battery management */ ++/**********************************************************************/ ++static int gdium_ac_get_props(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ char status; ++ struct gdium_laptop_data *data = container_of(psy, struct gdium_laptop_data, gdium_ac); ++ int ret = 0; ++ ++ if (!data) { ++ pr_err("gdium-ac: gdium_laptop_data not found\n"); ++ return -EINVAL; ++ } ++ ++ status = data->status; ++ switch (psp) { ++ case POWER_SUPPLY_PROP_ONLINE: ++ val->intval = !!(status & EC_STATUS_ADAPT); ++ break; ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ return ret; ++} ++ ++#undef RET ++#define RET (val->intval) ++ ++static int gdium_battery_get_props(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ char status, ctrl; ++ struct gdium_laptop_data *data = container_of(psy, struct gdium_laptop_data, gdium_battery); ++ int percentage_capacity = 0, charge_now = 0, time_to_empty = 0; ++ int ret = 0, tmp; ++ ++ if (!data) { ++ pr_err("gdium-battery: gdium_laptop_data not found\n"); ++ return -EINVAL; ++ } ++ ++ status = data->status; ++ ctrl = data->ctrl; ++ switch (psp) { ++ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: ++ /* uAh */ ++ RET = 5000000; ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_NOW: ++ case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: ++ /* This formula is gotten by gnuplot with the statistic data */ ++ time_to_empty = (data->battery_level - BAT_MIN_MV + BAT_READ_ERROR_MV) * 113 - 29870; ++ if (psp == POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW) { ++ /* seconds */ ++ RET = time_to_empty / 10; ++ break; ++ } ++ /* fall through */ ++ case POWER_SUPPLY_PROP_CHARGE_NOW: ++ case POWER_SUPPLY_PROP_CAPACITY: { ++ tmp = data->battery_level * 1000; ++ /* > BAT_MIN to avoid negative values */ ++ percentage_capacity = 0; ++ if ((status & EC_STATUS_BATID) && (tmp > BAT_MIN)) ++ percentage_capacity = (tmp-BAT_MIN)*100/(BAT_MAX-BAT_MIN); ++ ++ if (percentage_capacity > 100) ++ percentage_capacity = 100; ++ ++ if (psp == POWER_SUPPLY_PROP_CAPACITY) { ++ RET = percentage_capacity; ++ break; ++ } ++ charge_now = 50000 * percentage_capacity; ++ if (psp == POWER_SUPPLY_PROP_CHARGE_NOW) { ++ /* uAh */ ++ RET = charge_now; ++ break; ++ } ++ } /* fall through */ ++ case POWER_SUPPLY_PROP_STATUS: { ++ if (status & EC_STATUS_ADAPT) ++ if (ctrl & EC_CTRL_CHARGE_EN) ++ RET = POWER_SUPPLY_STATUS_CHARGING; ++ else ++ RET = POWER_SUPPLY_STATUS_NOT_CHARGING; ++ else ++ RET = POWER_SUPPLY_STATUS_DISCHARGING; ++ ++ if (psp == POWER_SUPPLY_PROP_STATUS) ++ break; ++ /* mAh -> µA */ ++ switch (RET) { ++ case POWER_SUPPLY_STATUS_CHARGING: ++ RET = -(data->charge_cmd == 2) ? 1400000 : 250000; ++ break; ++ case POWER_SUPPLY_STATUS_DISCHARGING: ++ RET = charge_now / time_to_empty * 36000; ++ break; ++ case POWER_SUPPLY_STATUS_NOT_CHARGING: ++ default: ++ RET = 0; ++ break; ++ } ++ } break; ++ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: ++ RET = BAT_MAX+BAT_READ_ERROR; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: ++ RET = BAT_MIN-BAT_READ_ERROR; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_NOW: ++ /* mV -> uV */ ++ RET = data->battery_level * 1000; ++ break; ++ case POWER_SUPPLY_PROP_PRESENT: ++#if CONFIG_GDIUM_VERSION > 2 ++ RET = !!(status & EC_STATUS_BATID); ++#else ++ RET = !!(data->battery_level > BAT_VOLT_PRESENT); ++#endif ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY_LEVEL: ++ tmp = data->battery_level * 1000; ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; ++ if (status & EC_STATUS_BATID) { ++ if (tmp >= BAT_MAX) { ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_HIGH; ++ if (tmp >= BAT_MAX+BAT_READ_ERROR) ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_FULL; ++ } else if (tmp <= BAT_MIN+BAT_READ_ERROR) { ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_LOW; ++ if (tmp <= BAT_MIN) ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; ++ } else ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; ++ } ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_TYPE: ++ if (ctrl & EC_CTRL_TRICKLE) ++ RET = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; ++ else if (ctrl & EC_CTRL_CHARGE_EN) ++ RET = POWER_SUPPLY_CHARGE_TYPE_FAST; ++ else ++ RET = POWER_SUPPLY_CHARGE_TYPE_NONE; ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_MAX: ++ /* 1.4A ? */ ++ RET = 1400000; ++ break; ++ default: ++ break; ++ } ++ ++ return ret; ++} ++#undef RET ++ ++static enum power_supply_property gdium_ac_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static enum power_supply_property gdium_battery_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_NOW, ++ POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, ++ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++ POWER_SUPPLY_PROP_CURRENT_MAX, ++ POWER_SUPPLY_PROP_CURRENT_NOW, ++ POWER_SUPPLY_PROP_CAPACITY, ++ POWER_SUPPLY_PROP_CAPACITY_LEVEL, ++ POWER_SUPPLY_PROP_CHARGE_TYPE, ++}; ++ ++static void gdium_laptop_battery_work(struct work_struct *work) ++{ ++ struct gdium_laptop_data *data = container_of(work, struct gdium_laptop_data, work.work); ++ struct i2c_client *client; ++ int ret; ++ char old_status, old_charge_cmd; ++ char present; ++ s32 status; ++ ++ mutex_lock(&data->mutex); ++ client = data->client; ++ status = ec_read_status(client); ++ ret = ec_read_battery(client); ++ ++ if ((status < 0) || (ret < 0)) ++ goto i2c_read_error; ++ ++ old_status = data->status; ++ old_charge_cmd = data->charge_cmd; ++ data->status = status; ++ ++ /* ++ * Charge only if : ++ * - battery present ++ * - ac adapter plugged in ++ * - battery not fully charged ++ */ ++#if CONFIG_GDIUM_VERSION > 2 ++ present = !!(data->status & EC_STATUS_BATID); ++#else ++ present = !!(ret > BAT_VOLT_PRESENT); ++#endif ++ data->battery_level = 0; ++ if (present) { ++ data->battery_level = (unsigned int)ret; ++ if (data->status & EC_STATUS_ADAPT) ++ data->battery_level -= BAT_READ_ERROR_MV; ++ } ++ ++ data->charge_cmd = 0; ++ if ((data->status & EC_STATUS_ADAPT) && present && (data->battery_level <= BAT_MAX_MV)) ++ data->charge_cmd = (ret < BAT_TRICKLE_EN) ? 2 : 3; ++ ++ ec_charge_en(client, (data->charge_cmd >> 1) & 1, data->charge_cmd & 1); ++ ++ /* ++ * data->ctrl must be set _after_ calling ec_charge_en as this will change the ++ * control register content ++ */ ++ data->ctrl = ec_read_ctrl(client); ++ ++ if ((data->status & EC_STATUS_ADAPT) != (old_status & EC_STATUS_ADAPT)) { ++ power_supply_changed(&data->gdium_ac); ++ /* Send charging/discharging state change */ ++ power_supply_changed(&data->gdium_battery); ++ } else if ((data->status & EC_STATUS_ADAPT) && ++ ((old_charge_cmd&2) != (data->charge_cmd&2))) ++ power_supply_changed(&data->gdium_battery); ++ ++i2c_read_error: ++ mutex_unlock(&data->mutex); ++ queue_delayed_work(data->workqueue, &data->work, msecs_to_jiffies(BAT_SCAN_INTERVAL)); ++} ++ ++static int gdium_laptop_battery_init(struct gdium_laptop_data *data) ++{ ++ int ret; ++ ++ data->bat_pdev = platform_device_register_simple("gdium-battery", 0, NULL, 0); ++ if (IS_ERR(data->bat_pdev)) ++ return PTR_ERR(data->bat_pdev); ++ ++ data->gdium_battery.name = data->bat_pdev->name; ++ data->gdium_battery.properties = gdium_battery_props; ++ data->gdium_battery.num_properties = ARRAY_SIZE(gdium_battery_props); ++ data->gdium_battery.get_property = gdium_battery_get_props; ++ data->gdium_battery.use_for_apm = 1; ++ ++ ret = power_supply_register(&data->bat_pdev->dev, &data->gdium_battery); ++ if (ret) ++ goto err_platform; ++ ++ data->gdium_ac.name = "gdium-ac"; ++ data->gdium_ac.type = POWER_SUPPLY_TYPE_MAINS; ++ data->gdium_ac.properties = gdium_ac_props; ++ data->gdium_ac.num_properties = ARRAY_SIZE(gdium_ac_props); ++ data->gdium_ac.get_property = gdium_ac_get_props; ++/* data->gdium_ac.use_for_apm_ac = 1, */ ++ ++ ret = power_supply_register(&data->bat_pdev->dev, &data->gdium_ac); ++ if (ret) ++ goto err_battery; ++ ++ if (!ec) { ++ INIT_DELAYED_WORK(&data->work, gdium_laptop_battery_work); ++ data->workqueue = create_singlethread_workqueue("gdium-battery-work"); ++ if (!data->workqueue) { ++ ret = -ESRCH; ++ goto err_work; ++ } ++ queue_delayed_work(data->workqueue, &data->work, msecs_to_jiffies(BAT_SCAN_INTERVAL)); ++ } ++ ++ return 0; ++ ++err_work: ++err_battery: ++ power_supply_unregister(&data->gdium_battery); ++err_platform: ++ platform_device_unregister(data->bat_pdev); ++ ++ return ret; ++} ++static void gdium_laptop_battery_exit(struct gdium_laptop_data *data) ++{ ++ if (!ec) { ++ cancel_rearming_delayed_workqueue(data->workqueue, &data->work); ++ destroy_workqueue(data->workqueue); ++ } ++ power_supply_unregister(&data->gdium_battery); ++ power_supply_unregister(&data->gdium_ac); ++ platform_device_unregister(data->bat_pdev); ++} ++ ++/* Debug fs */ ++static int gdium_laptop_regs_show(struct seq_file *s, void *p) ++{ ++ struct gdium_laptop_data *data = s->private; ++ struct i2c_client *client = data->client; ++ ++ mutex_lock(&data->mutex); ++ seq_printf(s, "Version : 0x%02x\n", (unsigned char)ec_read_version(client)); ++ seq_printf(s, "Status : 0x%02x\n", (unsigned char)ec_read_status(client)); ++ seq_printf(s, "Ctrl : 0x%02x\n", (unsigned char)ec_read_ctrl(client)); ++ seq_printf(s, "Sign : 0x%02x\n", (unsigned char)ec_read_sign(client)); ++ seq_printf(s, "Bat Lo : 0x%02x\n", (unsigned char)i2c_smbus_read_byte_data(client, EC_BAT_LOW)); ++ seq_printf(s, "Bat Hi : 0x%02x\n", (unsigned char)i2c_smbus_read_byte_data(client, EC_BAT_HIGH)); ++ seq_printf(s, "Battery : %d uV\n", (unsigned int)ec_read_battery(client) * 1000); ++ seq_printf(s, "Charge cmd : %s %s\n", data->charge_cmd & 2 ? "C" : " ", data->charge_cmd & 1 ? "T" : " "); ++ ++ mutex_unlock(&data->mutex); ++ return 0; ++} ++ ++static int gdium_laptop_regs_open(struct inode *inode, ++ struct file *file) ++{ ++ return single_open(file, gdium_laptop_regs_show, inode->i_private); ++} ++ ++static const struct file_operations gdium_laptop_regs_fops = { ++ .open = gdium_laptop_regs_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++ .owner = THIS_MODULE, ++}; ++ ++ ++static int gdium_laptop_probe(struct i2c_client *client, const struct i2c_device_id *id) ++{ ++ struct gdium_laptop_data *data; ++ int ret; ++ ++ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { ++ dev_err(&client->dev, ++ "%s: no smbus_byte support !\n", __func__); ++ return -ENODEV; ++ } ++ ++ data = kzalloc(sizeof(struct gdium_laptop_data), GFP_KERNEL); ++ if (!data) ++ return -ENOMEM; ++ ++ i2c_set_clientdata(client, data); ++ data->client = client; ++ mutex_init(&data->mutex); ++ ++ ret = ec_read_version(client); ++ if (ret < 0) ++ goto err_alloc; ++ ++ data->version = (unsigned char)ret; ++ ++ ret = gdium_laptop_input_init(data); ++ if (ret) ++ goto err_alloc; ++ ++ ret = gdium_laptop_battery_init(data); ++ if (ret) ++ goto err_input; ++ ++ ++ if (!ec) { ++ ret = ec_write_sign(client, EC_SIGN_OS); ++ if (ret) ++ goto err_sign; ++ } ++ ++ if (gpio16) { ++ ret = gpio_request(SM502_WLAN_ON, "wlan-on"); ++ if (ret < 0) ++ goto err_sign; ++ gpio_set_value(SM502_WLAN_ON, ec_wlan_status(client)); ++ gpio_direction_output(SM502_WLAN_ON, 1); ++ } ++ ++ dev_info(&client->dev, "Found firmware 0x%02x\n", data->version); ++ data->debugfs = debugfs_create_file("gdium_laptop", S_IFREG | S_IRUGO, ++ NULL, data, &gdium_laptop_regs_fops); ++ ++ return 0; ++ ++err_sign: ++ gdium_laptop_battery_exit(data); ++err_input: ++ gdium_laptop_input_exit(data); ++err_alloc: ++ kfree(data); ++ return ret; ++} ++ ++static int gdium_laptop_remove(struct i2c_client *client) ++{ ++ struct gdium_laptop_data *data = i2c_get_clientdata(client); ++ ++ if (gpio16) ++ gpio_free(SM502_WLAN_ON); ++ ec_write_sign(client, EC_SIGN_EC); ++ if (data->debugfs) ++ debugfs_remove(data->debugfs); ++ ++ gdium_laptop_battery_exit(data); ++ gdium_laptop_input_exit(data); ++ ++ kfree(data); ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++static int gdium_laptop_suspend(struct i2c_client *client, pm_message_t msg) ++{ ++ struct gdium_laptop_data *data = i2c_get_clientdata(client); ++ ++ if (!ec) ++ cancel_rearming_delayed_workqueue(data->workqueue, &data->work); ++ return 0; ++} ++ ++static int gdium_laptop_resume(struct i2c_client *client) ++{ ++ struct gdium_laptop_data *data = i2c_get_clientdata(client); ++ ++ if (!ec) ++ queue_delayed_work(data->workqueue, &data->work, msecs_to_jiffies(BAT_SCAN_INTERVAL)); ++ return 0; ++} ++#else ++#define gdium_laptop_suspend NULL ++#define gdium_laptop_resume NULL ++#endif ++static const struct i2c_device_id gdium_id[] = { ++ { "gdium-laptop" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(i2c, gdium_id); ++ ++static struct i2c_driver gdium_laptop_driver = { ++ .driver = { ++ .name = "gdium-laptop", ++ .owner = THIS_MODULE, ++ }, ++ .probe = gdium_laptop_probe, ++ .remove = gdium_laptop_remove, ++ .shutdown = gdium_laptop_remove, ++ .suspend = gdium_laptop_suspend, ++ .resume = gdium_laptop_resume, ++ .id_table = gdium_id, ++}; ++ ++static int __init gdium_laptop_init(void) ++{ ++ return i2c_add_driver(&gdium_laptop_driver); ++} ++ ++static void __exit gdium_laptop_exit(void) ++{ ++ i2c_del_driver(&gdium_laptop_driver); ++} ++ ++module_init(gdium_laptop_init); ++module_exit(gdium_laptop_exit); ++ ++MODULE_AUTHOR("Arnaud Patard <apatard@mandriva.com>"); ++MODULE_DESCRIPTION("Gdium laptop extras"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/platform/mips/lynloong_pc.c b/drivers/platform/mips/lynloong_pc.c +new file mode 100644 +index 0000000..68f29e4 +--- /dev/null ++++ b/drivers/platform/mips/lynloong_pc.c +@@ -0,0 +1,515 @@ ++/* ++ * Driver for LynLoong PC extras ++ * ++ * Copyright (C) 2009 Lemote Inc. ++ * Author: Wu Zhangjin <wuzhangjin@gmail.com>, Xiang Yu <xiangy@lemote.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/err.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/backlight.h> /* for backlight subdriver */ ++#include <linux/fb.h> ++#include <linux/video_output.h> /* for video output subdriver */ ++#include <linux/delay.h> /* for suspend support */ ++ ++#include <cs5536/cs5536.h> ++#include <cs5536/cs5536_mfgpt.h> ++ ++#include <loongson.h> ++ ++static u32 gpio_base, mfgpt_base; ++ ++static void set_gpio_reg_high(int gpio, int reg) ++{ ++ u32 val; ++ ++ val = inl(gpio_base + reg); ++ val |= (1 << gpio); ++ val &= ~(1 << (16 + gpio)); ++ outl(val, gpio_base + reg); ++ mmiowb(); ++} ++ ++static void set_gpio_reg_low(int gpio, int reg) ++{ ++ u32 val; ++ ++ val = inl(gpio_base + reg); ++ val |= (1 << (16 + gpio)); ++ val &= ~(1 << gpio); ++ outl(val, gpio_base + reg); ++ mmiowb(); ++} ++ ++static void set_gpio_output_low(int gpio) ++{ ++ set_gpio_reg_high(gpio, GPIOL_OUT_EN); ++ set_gpio_reg_low(gpio, GPIOL_OUT_VAL); ++} ++ ++static void set_gpio_output_high(int gpio) ++{ ++ set_gpio_reg_high(gpio, GPIOL_OUT_EN); ++ set_gpio_reg_high(gpio, GPIOL_OUT_VAL); ++} ++ ++/* backlight subdriver */ ++ ++#define MAX_BRIGHTNESS 100 ++#define DEFAULT_BRIGHTNESS 50 ++#define MIN_BRIGHTNESS 0 ++static unsigned int level; ++ ++DEFINE_SPINLOCK(backlight_lock); ++/* Tune the brightness */ ++static void setup_mfgpt2(void) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&backlight_lock, flags); ++ ++ /* Set MFGPT2 comparator 1,2 */ ++ outw(MAX_BRIGHTNESS-level, MFGPT2_CMP1); ++ outw(MAX_BRIGHTNESS, MFGPT2_CMP2); ++ /* Clear MFGPT2 UP COUNTER */ ++ outw(0, MFGPT2_CNT); ++ /* Enable counter, compare mode, 32k */ ++ outw(0x8280, MFGPT2_SETUP); ++ ++ spin_unlock_irqrestore(&backlight_lock, flags); ++} ++ ++static int lynloong_set_brightness(struct backlight_device *bd) ++{ ++ level = (bd->props.fb_blank == FB_BLANK_UNBLANK && ++ bd->props.power == FB_BLANK_UNBLANK) ? ++ bd->props.brightness : 0; ++ ++ if (level > MAX_BRIGHTNESS) ++ level = MAX_BRIGHTNESS; ++ else if (level < MIN_BRIGHTNESS) ++ level = MIN_BRIGHTNESS; ++ ++ setup_mfgpt2(); ++ ++ return 0; ++} ++ ++static int lynloong_get_brightness(struct backlight_device *bd) ++{ ++ return level; ++} ++ ++static struct backlight_ops backlight_ops = { ++ .get_brightness = lynloong_get_brightness, ++ .update_status = lynloong_set_brightness, ++}; ++ ++static struct backlight_device *lynloong_backlight_dev; ++ ++static int lynloong_backlight_init(void) ++{ ++ int ret; ++ u32 hi; ++ struct backlight_properties props; ++ ++ /* Get gpio_base */ ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &gpio_base); ++ /* Get mfgpt_base */ ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &hi, &mfgpt_base); ++ /* Get gpio_base */ ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &gpio_base); ++ ++ /* Select for mfgpt */ ++ set_gpio_reg_high(7, GPIOL_OUT_AUX1_SEL); ++ /* Enable brightness controlling */ ++ set_gpio_output_high(7); ++ ++ memset(&props, 0, sizeof(struct backlight_properties)); ++ props.max_brightness = MAX_BRIGHTNESS; ++ props.type = BACKLIGHT_PLATFORM; ++ lynloong_backlight_dev = backlight_device_register("backlight0", NULL, ++ NULL, &backlight_ops, &props); ++ ++ if (IS_ERR(lynloong_backlight_dev)) { ++ ret = PTR_ERR(lynloong_backlight_dev); ++ return ret; ++ } ++ ++ lynloong_backlight_dev->props.brightness = DEFAULT_BRIGHTNESS; ++ backlight_update_status(lynloong_backlight_dev); ++ ++ return 0; ++} ++ ++static void lynloong_backlight_exit(void) ++{ ++ if (lynloong_backlight_dev) { ++ backlight_device_unregister(lynloong_backlight_dev); ++ lynloong_backlight_dev = NULL; ++ } ++ /* Disable brightness controlling */ ++ set_gpio_output_low(7); ++} ++ ++/* video output driver */ ++static int vo_status = 1; ++ ++static int lcd_video_output_get(struct output_device *od) ++{ ++ return vo_status; ++} ++ ++static int lcd_video_output_set(struct output_device *od) ++{ ++ int i; ++ unsigned long status; ++ ++ status = !!od->request_state; ++ ++ if (status == 0) { ++ /* Set the current status as off */ ++ vo_status = 0; ++ /* Turn off the backlight */ ++ set_gpio_output_low(11); ++ for (i = 0; i < 0x500; i++) ++ delay(); ++ /* Turn off the LCD */ ++ set_gpio_output_high(8); ++ } else { ++ /* Turn on the LCD */ ++ set_gpio_output_low(8); ++ for (i = 0; i < 0x500; i++) ++ delay(); ++ /* Turn on the backlight */ ++ set_gpio_output_high(11); ++ /* Set the current status as on */ ++ vo_status = 1; ++ } ++ ++ return 0; ++} ++ ++static struct output_properties lcd_output_properties = { ++ .set_state = lcd_video_output_set, ++ .get_status = lcd_video_output_get, ++}; ++ ++static struct output_device *lcd_output_dev; ++ ++static void lynloong_lcd_vo_set(int status) ++{ ++ lcd_output_dev->request_state = status; ++ lcd_video_output_set(lcd_output_dev); ++} ++ ++static int lynloong_vo_init(void) ++{ ++ int ret; ++ ++ /* Register video output device: lcd */ ++ lcd_output_dev = video_output_register("LCD", NULL, NULL, ++ &lcd_output_properties); ++ ++ if (IS_ERR(lcd_output_dev)) { ++ ret = PTR_ERR(lcd_output_dev); ++ lcd_output_dev = NULL; ++ return ret; ++ } ++ /* Ensure LCD is on by default */ ++ lynloong_lcd_vo_set(1); ++ ++ return 0; ++} ++ ++static void lynloong_vo_exit(void) ++{ ++ if (lcd_output_dev) { ++ video_output_unregister(lcd_output_dev); ++ lcd_output_dev = NULL; ++ } ++} ++ ++/* suspend support */ ++ ++#ifdef CONFIG_PM ++ ++static u32 smb_base; ++ ++/* I2C operations */ ++ ++static int i2c_wait(void) ++{ ++ char c; ++ int i; ++ ++ udelay(1000); ++ for (i = 0; i < 20; i++) { ++ c = inb(smb_base | SMB_STS); ++ if (c & (SMB_STS_BER | SMB_STS_NEGACK)) ++ return -1; ++ if (c & SMB_STS_SDAST) ++ return 0; ++ udelay(100); ++ } ++ return -2; ++} ++ ++static void i2c_read_single(int addr, int regNo, char *value) ++{ ++ unsigned char c; ++ ++ /* Start condition */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_START, smb_base | SMB_CTRL1); ++ i2c_wait(); ++ ++ /* Send slave address */ ++ outb(addr & 0xfe, smb_base | SMB_SDA); ++ i2c_wait(); ++ ++ /* Acknowledge smbus */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_ACK, smb_base | SMB_CTRL1); ++ ++ /* Send register index */ ++ outb(regNo, smb_base | SMB_SDA); ++ i2c_wait(); ++ ++ /* Acknowledge smbus */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_ACK, smb_base | SMB_CTRL1); ++ ++ /* Start condition again */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_START, smb_base | SMB_CTRL1); ++ i2c_wait(); ++ ++ /* Send salve address again */ ++ outb(1 | addr, smb_base | SMB_SDA); ++ i2c_wait(); ++ ++ /* Acknowledge smbus */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_ACK, smb_base | SMB_CTRL1); ++ ++ /* Read data */ ++ *value = inb(smb_base | SMB_SDA); ++ ++ /* Stop condition */ ++ outb(SMB_CTRL1_STOP, smb_base | SMB_CTRL1); ++ i2c_wait(); ++} ++ ++static void i2c_write_single(int addr, int regNo, char value) ++{ ++ unsigned char c; ++ ++ /* Start condition */ ++ c = inb(smb_base | SMB_CTRL1); ++ outb(c | SMB_CTRL1_START, smb_base | SMB_CTRL1); ++ i2c_wait(); ++ /* Send slave address */ ++ outb(addr & 0xfe, smb_base | SMB_SDA); ++ i2c_wait();; ++ ++ /* Send register index */ ++ outb(regNo, smb_base | SMB_SDA); ++ i2c_wait(); ++ ++ /* Write data */ ++ outb(value, smb_base | SMB_SDA); ++ i2c_wait(); ++ /* Stop condition */ ++ outb(SMB_CTRL1_STOP, smb_base | SMB_CTRL1); ++ i2c_wait(); ++} ++ ++static void stop_clock(int clk_reg, int clk_sel) ++{ ++ u8 value; ++ ++ i2c_read_single(0xd3, clk_reg, &value); ++ value &= ~(1 << clk_sel); ++ i2c_write_single(0xd2, clk_reg, value); ++} ++ ++static void enable_clock(int clk_reg, int clk_sel) ++{ ++ u8 value; ++ ++ i2c_read_single(0xd3, clk_reg, &value); ++ value |= (1 << clk_sel); ++ i2c_write_single(0xd2, clk_reg, value); ++} ++ ++static char cached_clk_freq; ++static char cached_pci_fixed_freq; ++ ++static void decrease_clk_freq(void) ++{ ++ char value; ++ ++ i2c_read_single(0xd3, 1, &value); ++ cached_clk_freq = value; ++ ++ /* Select frequency by software */ ++ value |= (1 << 1); ++ /* CPU, 3V66, PCI : 100, 66, 33(1) */ ++ value |= (1 << 2); ++ i2c_write_single(0xd2, 1, value); ++ ++ /* Cache the pci frequency */ ++ i2c_read_single(0xd3, 14, &value); ++ cached_pci_fixed_freq = value; ++ ++ /* Enable PCI fix mode */ ++ value |= (1 << 5); ++ /* 3V66, PCI : 64MHz, 32MHz */ ++ value |= (1 << 3); ++ i2c_write_single(0xd2, 14, value); ++ ++} ++ ++static void resume_clk_freq(void) ++{ ++ i2c_write_single(0xd2, 1, cached_clk_freq); ++ i2c_write_single(0xd2, 14, cached_pci_fixed_freq); ++} ++ ++static void stop_clocks(void) ++{ ++ /* CPU Clock Register */ ++ stop_clock(2, 5); /* not used */ ++ stop_clock(2, 6); /* not used */ ++ stop_clock(2, 7); /* not used */ ++ ++ /* PCI Clock Register */ ++ stop_clock(3, 1); /* 8100 */ ++ stop_clock(3, 5); /* SIS */ ++ stop_clock(3, 0); /* not used */ ++ stop_clock(3, 6); /* not used */ ++ ++ /* PCI 48M Clock Register */ ++ stop_clock(4, 6); /* USB grounding */ ++ stop_clock(4, 5); /* REF(5536_14M) */ ++ ++ /* 3V66 Control Register */ ++ stop_clock(5, 0); /* VCH_CLK..., grounding */ ++} ++ ++static void enable_clocks(void) ++{ ++ enable_clock(3, 1); /* 8100 */ ++ enable_clock(3, 5); /* SIS */ ++ ++ enable_clock(4, 6); ++ enable_clock(4, 5); /* REF(5536_14M) */ ++ ++ enable_clock(5, 0); /* VCH_CLOCK, grounding */ ++} ++ ++static int lynloong_suspend(struct device *dev) ++{ ++ /* Disable AMP */ ++ set_gpio_output_high(6); ++ /* Turn off LCD */ ++ lynloong_lcd_vo_set(0); ++ ++ /* Stop the clocks of some devices */ ++ stop_clocks(); ++ ++ /* Decrease the external clock frequency */ ++ decrease_clk_freq(); ++ ++ return 0; ++} ++ ++static int lynloong_resume(struct device *dev) ++{ ++ /* Turn on the LCD */ ++ lynloong_lcd_vo_set(1); ++ ++ /* Resume clock frequency, enable the relative clocks */ ++ resume_clk_freq(); ++ enable_clocks(); ++ ++ /* Enable AMP */ ++ set_gpio_output_low(6); ++ ++ return 0; ++} ++ ++static const SIMPLE_DEV_PM_OPS(lynloong_pm_ops, lynloong_suspend, ++ lynloong_resume); ++#endif /* !CONFIG_PM */ ++ ++static struct platform_device_id platform_device_ids[] = { ++ { ++ .name = "lynloong_pc", ++ }, ++ {} ++}; ++ ++MODULE_DEVICE_TABLE(platform, platform_device_ids); ++ ++static struct platform_driver platform_driver = { ++ .driver = { ++ .name = "lynloong_pc", ++ .owner = THIS_MODULE, ++#ifdef CONFIG_PM ++ .pm = &lynloong_pm_ops, ++#endif ++ }, ++ .id_table = platform_device_ids, ++}; ++ ++static int __init lynloong_init(void) ++{ ++ int ret; ++ ++ pr_info("LynLoong platform specific driver loaded.\n"); ++ ++ /* Register platform stuff */ ++ ret = platform_driver_register(&platform_driver); ++ if (ret) { ++ pr_err("Failed to register LynLoong platform driver.\n"); ++ return ret; ++ } ++ ++ ret = lynloong_backlight_init(); ++ if (ret) { ++ pr_err("Failed to register LynLoong backlight driver.\n"); ++ return ret; ++ } ++ ++ ret = lynloong_vo_init(); ++ if (ret) { ++ pr_err("Failed to register LynLoong backlight driver.\n"); ++ lynloong_vo_exit(); ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static void __exit lynloong_exit(void) ++{ ++ lynloong_vo_exit(); ++ lynloong_backlight_exit(); ++ platform_driver_unregister(&platform_driver); ++ ++ pr_info("LynLoong platform specific driver unloaded.\n"); ++} ++ ++module_init(lynloong_init); ++module_exit(lynloong_exit); ++ ++MODULE_AUTHOR("Wu Zhangjin <wuzhangjin@gmail.com>; Xiang Yu <xiangy@lemote.com>"); ++MODULE_DESCRIPTION("LynLoong PC driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/platform/mips/yeeloong_ecrom.c b/drivers/platform/mips/yeeloong_ecrom.c +new file mode 100644 +index 0000000..1bfe4cf +--- /dev/null ++++ b/drivers/platform/mips/yeeloong_ecrom.c +@@ -0,0 +1,944 @@ ++/* ++ * Driver for flushing/dumping ROM of EC on YeeLoong laptop ++ * ++ * Copyright (C) 2009 Lemote Inc. ++ * Author: liujl <liujl@lemote.com> ++ * ++ * NOTE : ++ * The EC resources accessing and programming are supported. ++ */ ++ ++#include <linux/module.h> ++#include <linux/proc_fs.h> ++#include <linux/miscdevice.h> ++#include <linux/init.h> ++#include <linux/delay.h> ++ ++#include <ec_kb3310b.h> ++ ++#define EC_MISC_DEV "ec_misc" ++#define EC_IOC_MAGIC 'E' ++ ++/* ec registers range */ ++#define EC_MAX_REGADDR 0xFFFF ++#define EC_MIN_REGADDR 0xF000 ++#define EC_RAM_ADDR 0xF800 ++ ++/* version burned address */ ++#define VER_ADDR 0xf7a1 ++#define VER_MAX_SIZE 7 ++#define EC_ROM_MAX_SIZE 0x10000 ++ ++/* ec internal register */ ++#define REG_POWER_MODE 0xF710 ++#define FLAG_NORMAL_MODE 0x00 ++#define FLAG_IDLE_MODE 0x01 ++#define FLAG_RESET_MODE 0x02 ++ ++/* ec update program flag */ ++#define PROGRAM_FLAG_NONE 0x00 ++#define PROGRAM_FLAG_IE 0x01 ++#define PROGRAM_FLAG_ROM 0x02 ++ ++/* XBI relative registers */ ++#define REG_XBISEG0 0xFEA0 ++#define REG_XBISEG1 0xFEA1 ++#define REG_XBIRSV2 0xFEA2 ++#define REG_XBIRSV3 0xFEA3 ++#define REG_XBIRSV4 0xFEA4 ++#define REG_XBICFG 0xFEA5 ++#define REG_XBICS 0xFEA6 ++#define REG_XBIWE 0xFEA7 ++#define REG_XBISPIA0 0xFEA8 ++#define REG_XBISPIA1 0xFEA9 ++#define REG_XBISPIA2 0xFEAA ++#define REG_XBISPIDAT 0xFEAB ++#define REG_XBISPICMD 0xFEAC ++#define REG_XBISPICFG 0xFEAD ++#define REG_XBISPIDATR 0xFEAE ++#define REG_XBISPICFG2 0xFEAF ++ ++/* commands definition for REG_XBISPICMD */ ++#define SPICMD_WRITE_STATUS 0x01 ++#define SPICMD_BYTE_PROGRAM 0x02 ++#define SPICMD_READ_BYTE 0x03 ++#define SPICMD_WRITE_DISABLE 0x04 ++#define SPICMD_READ_STATUS 0x05 ++#define SPICMD_WRITE_ENABLE 0x06 ++#define SPICMD_HIGH_SPEED_READ 0x0B ++#define SPICMD_POWER_DOWN 0xB9 ++#define SPICMD_SST_EWSR 0x50 ++#define SPICMD_SST_SEC_ERASE 0x20 ++#define SPICMD_SST_BLK_ERASE 0x52 ++#define SPICMD_SST_CHIP_ERASE 0x60 ++#define SPICMD_FRDO 0x3B ++#define SPICMD_SEC_ERASE 0xD7 ++#define SPICMD_BLK_ERASE 0xD8 ++#define SPICMD_CHIP_ERASE 0xC7 ++ ++/* bits definition for REG_XBISPICFG */ ++#define SPICFG_AUTO_CHECK 0x01 ++#define SPICFG_SPI_BUSY 0x02 ++#define SPICFG_DUMMY_READ 0x04 ++#define SPICFG_EN_SPICMD 0x08 ++#define SPICFG_LOW_SPICS 0x10 ++#define SPICFG_EN_SHORT_READ 0x20 ++#define SPICFG_EN_OFFSET_READ 0x40 ++#define SPICFG_EN_FAST_READ 0x80 ++ ++/* watchdog timer registers */ ++#define REG_WDTCFG 0xfe80 ++#define REG_WDTPF 0xfe81 ++#define REG_WDT 0xfe82 ++ ++/* lpc configure register */ ++#define REG_LPCCFG 0xfe95 ++ ++/* 8051 reg */ ++#define REG_PXCFG 0xff14 ++ ++/* Fan register in KB3310 */ ++#define REG_ECFAN_SPEED_LEVEL 0xf4e4 ++#define REG_ECFAN_SWITCH 0xf4d2 ++ ++/* the ec flash rom id number */ ++#define EC_ROM_PRODUCT_ID_SPANSION 0x01 ++#define EC_ROM_PRODUCT_ID_MXIC 0xC2 ++#define EC_ROM_PRODUCT_ID_AMIC 0x37 ++#define EC_ROM_PRODUCT_ID_EONIC 0x1C ++ ++/* misc ioctl operations */ ++#define IOCTL_RDREG _IOR(EC_IOC_MAGIC, 1, int) ++#define IOCTL_WRREG _IOW(EC_IOC_MAGIC, 2, int) ++#define IOCTL_READ_EC _IOR(EC_IOC_MAGIC, 3, int) ++#define IOCTL_PROGRAM_IE _IOW(EC_IOC_MAGIC, 4, int) ++#define IOCTL_PROGRAM_EC _IOW(EC_IOC_MAGIC, 5, int) ++ ++/* start address for programming of EC content or IE */ ++/* ec running code start address */ ++#define EC_START_ADDR 0x00000000 ++/* ec information element storing address */ ++#define IE_START_ADDR 0x00020000 ++ ++/* EC state */ ++#define EC_STATE_IDLE 0x00 /* ec in idle state */ ++#define EC_STATE_BUSY 0x01 /* ec in busy state */ ++ ++/* timeout value for programming */ ++#define EC_FLASH_TIMEOUT 0x1000 /* ec program timeout */ ++/* command checkout timeout including cmd to port or state flag check */ ++#define EC_CMD_TIMEOUT 0x1000 ++#define EC_SPICMD_STANDARD_TIMEOUT (4 * 1000) /* unit : us */ ++#define EC_MAX_DELAY_UNIT (10) /* every time for polling */ ++#define SPI_FINISH_WAIT_TIME 10 ++/* EC content max size */ ++#define EC_CONTENT_MAX_SIZE (64 * 1024) ++#define IE_CONTENT_MAX_SIZE (0x100000 - IE_START_ADDR) ++ ++/* the register operation access struct */ ++struct ec_reg { ++ u32 addr; /* the address of kb3310 registers */ ++ u8 val; /* the register value */ ++}; ++ ++struct ec_info { ++ u32 start_addr; ++ u32 size; ++ u8 *buf; ++}; ++ ++/* open for using rom protection action */ ++#define EC_ROM_PROTECTION ++ ++/* enable the chip reset mode */ ++static int ec_init_reset_mode(void) ++{ ++ int timeout; ++ unsigned char status = 0; ++ int ret = 0; ++ ++ /* make chip goto reset mode */ ++ ret = ec_query_seq(CMD_INIT_RESET_MODE); ++ if (ret < 0) { ++ printk(KERN_ERR "ec init reset mode failed.\n"); ++ goto out; ++ } ++ ++ /* make the action take active */ ++ timeout = EC_CMD_TIMEOUT; ++ status = ec_read(REG_POWER_MODE) & FLAG_RESET_MODE; ++ while (timeout--) { ++ if (status) { ++ udelay(EC_REG_DELAY); ++ break; ++ } ++ status = ec_read(REG_POWER_MODE) & FLAG_RESET_MODE; ++ udelay(EC_REG_DELAY); ++ } ++ if (timeout <= 0) { ++ printk(KERN_ERR "ec rom fixup : can't check reset status.\n"); ++ ret = -EINVAL; ++ } else ++ printk(KERN_INFO "(%d/%d)reset 0xf710 : 0x%x\n", timeout, ++ EC_CMD_TIMEOUT - timeout, status); ++ ++ /* set MCU to reset mode */ ++ udelay(EC_REG_DELAY); ++ status = ec_read(REG_PXCFG); ++ status |= (1 << 0); ++ ec_write(REG_PXCFG, status); ++ udelay(EC_REG_DELAY); ++ ++ /* disable FWH/LPC */ ++ udelay(EC_REG_DELAY); ++ status = ec_read(REG_LPCCFG); ++ status &= ~(1 << 7); ++ ec_write(REG_LPCCFG, status); ++ udelay(EC_REG_DELAY); ++ ++ printk(KERN_INFO "entering reset mode ok..............\n"); ++ ++ out: ++ return ret; ++} ++ ++/* make ec exit from reset mode */ ++static void ec_exit_reset_mode(void) ++{ ++ unsigned char regval; ++ ++ udelay(EC_REG_DELAY); ++ regval = ec_read(REG_LPCCFG); ++ regval |= (1 << 7); ++ ec_write(REG_LPCCFG, regval); ++ regval = ec_read(REG_PXCFG); ++ regval &= ~(1 << 0); ++ ec_write(REG_PXCFG, regval); ++ printk(KERN_INFO "exit reset mode ok..................\n"); ++ ++ return; ++} ++ ++/* make ec disable WDD */ ++static void ec_disable_WDD(void) ++{ ++ unsigned char status; ++ ++ udelay(EC_REG_DELAY); ++ status = ec_read(REG_WDTCFG); ++ ec_write(REG_WDTPF, 0x03); ++ ec_write(REG_WDTCFG, (status & 0x80) | 0x48); ++ printk(KERN_INFO "Disable WDD ok..................\n"); ++ ++ return; ++} ++ ++/* make ec enable WDD */ ++static void ec_enable_WDD(void) ++{ ++ unsigned char status; ++ ++ udelay(EC_REG_DELAY); ++ status = ec_read(REG_WDTCFG); ++ ec_write(REG_WDT, 0x28); /* set WDT 5sec(0x28) */ ++ ec_write(REG_WDTCFG, (status & 0x80) | 0x03); ++ printk(KERN_INFO "Enable WDD ok..................\n"); ++ ++ return; ++} ++ ++/* make ec goto idle mode */ ++static int ec_init_idle_mode(void) ++{ ++ int timeout; ++ unsigned char status = 0; ++ int ret = 0; ++ ++ ec_query_seq(CMD_INIT_IDLE_MODE); ++ ++ /* make the action take active */ ++ timeout = EC_CMD_TIMEOUT; ++ status = ec_read(REG_POWER_MODE) & FLAG_IDLE_MODE; ++ while (timeout--) { ++ if (status) { ++ udelay(EC_REG_DELAY); ++ break; ++ } ++ status = ec_read(REG_POWER_MODE) & FLAG_IDLE_MODE; ++ udelay(EC_REG_DELAY); ++ } ++ if (timeout <= 0) { ++ printk(KERN_ERR "ec rom fixup : can't check out the status.\n"); ++ ret = -EINVAL; ++ } else ++ printk(KERN_INFO "(%d/%d)0xf710 : 0x%x\n", timeout, ++ EC_CMD_TIMEOUT - timeout, ec_read(REG_POWER_MODE)); ++ ++ printk(KERN_INFO "entering idle mode ok...................\n"); ++ ++ return ret; ++} ++ ++/* make ec exit from idle mode */ ++static int ec_exit_idle_mode(void) ++{ ++ ++ ec_query_seq(CMD_EXIT_IDLE_MODE); ++ ++ printk(KERN_INFO "exit idle mode ok...................\n"); ++ ++ return 0; ++} ++ ++static int ec_instruction_cycle(void) ++{ ++ unsigned long timeout; ++ int ret = 0; ++ ++ timeout = EC_FLASH_TIMEOUT; ++ while (timeout-- >= 0) { ++ if (!(ec_read(REG_XBISPICFG) & SPICFG_SPI_BUSY)) ++ break; ++ } ++ if (timeout <= 0) { ++ printk(KERN_ERR ++ "EC_INSTRUCTION_CYCLE : timeout for check flag.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ out: ++ return ret; ++} ++ ++/* To see if the ec is in busy state or not. */ ++static inline int ec_flash_busy(unsigned long timeout) ++{ ++ /* assurance the first command be going to rom */ ++ if (ec_instruction_cycle() < 0) ++ return EC_STATE_BUSY; ++#if 1 ++ timeout = timeout / EC_MAX_DELAY_UNIT; ++ while (timeout-- > 0) { ++ /* check the rom's status of busy flag */ ++ ec_write(REG_XBISPICMD, SPICMD_READ_STATUS); ++ if (ec_instruction_cycle() < 0) ++ return EC_STATE_BUSY; ++ if ((ec_read(REG_XBISPIDAT) & 0x01) == 0x00) ++ return EC_STATE_IDLE; ++ udelay(EC_MAX_DELAY_UNIT); ++ } ++ if (timeout <= 0) { ++ printk(KERN_ERR ++ "EC_FLASH_BUSY : timeout for check rom flag.\n"); ++ return EC_STATE_BUSY; ++ } ++#else ++ /* check the rom's status of busy flag */ ++ ec_write(REG_XBISPICMD, SPICMD_READ_STATUS); ++ if (ec_instruction_cycle() < 0) ++ return EC_STATE_BUSY; ++ ++ timeout = timeout / EC_MAX_DELAY_UNIT; ++ while (timeout-- > 0) { ++ if ((ec_read(REG_XBISPIDAT) & 0x01) == 0x00) ++ return EC_STATE_IDLE; ++ udelay(EC_MAX_DELAY_UNIT); ++ } ++ if (timeout <= 0) { ++ printk(KERN_ERR ++ "EC_FLASH_BUSY : timeout for check rom flag.\n"); ++ return EC_STATE_BUSY; ++ } ++#endif ++ ++ return EC_STATE_IDLE; ++} ++ ++static int rom_instruction_cycle(unsigned char cmd) ++{ ++ unsigned long timeout = 0; ++ ++ switch (cmd) { ++ case SPICMD_READ_STATUS: ++ case SPICMD_WRITE_ENABLE: ++ case SPICMD_WRITE_DISABLE: ++ case SPICMD_READ_BYTE: ++ case SPICMD_HIGH_SPEED_READ: ++ timeout = 0; ++ break; ++ case SPICMD_WRITE_STATUS: ++ timeout = 300 * 1000; ++ break; ++ case SPICMD_BYTE_PROGRAM: ++ timeout = 5 * 1000; ++ break; ++ case SPICMD_SST_SEC_ERASE: ++ case SPICMD_SEC_ERASE: ++ timeout = 1000 * 1000; ++ break; ++ case SPICMD_SST_BLK_ERASE: ++ case SPICMD_BLK_ERASE: ++ timeout = 3 * 1000 * 1000; ++ break; ++ case SPICMD_SST_CHIP_ERASE: ++ case SPICMD_CHIP_ERASE: ++ timeout = 20 * 1000 * 1000; ++ break; ++ default: ++ timeout = EC_SPICMD_STANDARD_TIMEOUT; ++ } ++ if (timeout == 0) ++ return ec_instruction_cycle(); ++ if (timeout < EC_SPICMD_STANDARD_TIMEOUT) ++ timeout = EC_SPICMD_STANDARD_TIMEOUT; ++ ++ return ec_flash_busy(timeout); ++} ++ ++/* delay for start/stop action */ ++static void delay_spi(int n) ++{ ++ while (n--) ++ inb(EC_IO_PORT_HIGH); ++} ++ ++/* start the action to spi rom function */ ++static void ec_start_spi(void) ++{ ++ unsigned char val; ++ ++ delay_spi(SPI_FINISH_WAIT_TIME); ++ val = ec_read(REG_XBISPICFG) | SPICFG_EN_SPICMD | SPICFG_AUTO_CHECK; ++ ec_write(REG_XBISPICFG, val); ++ delay_spi(SPI_FINISH_WAIT_TIME); ++} ++ ++/* stop the action to spi rom function */ ++static void ec_stop_spi(void) ++{ ++ unsigned char val; ++ ++ delay_spi(SPI_FINISH_WAIT_TIME); ++ val = ++ ec_read(REG_XBISPICFG) & (~(SPICFG_EN_SPICMD | SPICFG_AUTO_CHECK)); ++ ec_write(REG_XBISPICFG, val); ++ delay_spi(SPI_FINISH_WAIT_TIME); ++} ++ ++/* read one byte from xbi interface */ ++static int ec_read_byte(unsigned int addr, unsigned char *byte) ++{ ++ int ret = 0; ++ ++ /* enable spicmd writing. */ ++ ec_start_spi(); ++ ++ /* enable write spi flash */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_ENABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_ENABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR "EC_READ_BYTE : SPICMD_WRITE_ENABLE failed.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ /* write the address */ ++ ec_write(REG_XBISPIA2, (addr & 0xff0000) >> 16); ++ ec_write(REG_XBISPIA1, (addr & 0x00ff00) >> 8); ++ ec_write(REG_XBISPIA0, (addr & 0x0000ff) >> 0); ++ /* start action */ ++ ec_write(REG_XBISPICMD, SPICMD_HIGH_SPEED_READ); ++ if (rom_instruction_cycle(SPICMD_HIGH_SPEED_READ) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_READ_BYTE : SPICMD_HIGH_SPEED_READ failed.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ *byte = ec_read(REG_XBISPIDAT); ++ ++ out: ++ /* disable spicmd writing. */ ++ ec_stop_spi(); ++ ++ return ret; ++} ++ ++/* write one byte to ec rom */ ++static int ec_write_byte(unsigned int addr, unsigned char byte) ++{ ++ int ret = 0; ++ ++ /* enable spicmd writing. */ ++ ec_start_spi(); ++ ++ /* enable write spi flash */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_ENABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_ENABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_WRITE_BYTE : SPICMD_WRITE_ENABLE failed.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ /* write the address */ ++ ec_write(REG_XBISPIA2, (addr & 0xff0000) >> 16); ++ ec_write(REG_XBISPIA1, (addr & 0x00ff00) >> 8); ++ ec_write(REG_XBISPIA0, (addr & 0x0000ff) >> 0); ++ ec_write(REG_XBISPIDAT, byte); ++ /* start action */ ++ ec_write(REG_XBISPICMD, SPICMD_BYTE_PROGRAM); ++ if (rom_instruction_cycle(SPICMD_BYTE_PROGRAM) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_WRITE_BYTE : SPICMD_BYTE_PROGRAM failed.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ out: ++ /* disable spicmd writing. */ ++ ec_stop_spi(); ++ ++ return ret; ++} ++ ++/* unprotect SPI ROM */ ++/* EC_ROM_unprotect function code */ ++static int EC_ROM_unprotect(void) ++{ ++ unsigned char status; ++ ++ /* enable write spi flash */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_ENABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_ENABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_UNIT_ERASE : SPICMD_WRITE_ENABLE failed.\n"); ++ return 1; ++ } ++ ++ /* unprotect the status register of rom */ ++ ec_write(REG_XBISPICMD, SPICMD_READ_STATUS); ++ if (rom_instruction_cycle(SPICMD_READ_STATUS) == EC_STATE_BUSY) { ++ printk(KERN_ERR "EC_UNIT_ERASE : SPICMD_READ_STATUS failed.\n"); ++ return 1; ++ } ++ status = ec_read(REG_XBISPIDAT); ++ ec_write(REG_XBISPIDAT, status & 0x02); ++ if (ec_instruction_cycle() < 0) { ++ printk(KERN_ERR "EC_UNIT_ERASE : write status value failed.\n"); ++ return 1; ++ } ++ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_STATUS); ++ if (rom_instruction_cycle(SPICMD_WRITE_STATUS) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_UNIT_ERASE : SPICMD_WRITE_STATUS failed.\n"); ++ return 1; ++ } ++ ++ /* enable write spi flash */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_ENABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_ENABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_UNIT_ERASE : SPICMD_WRITE_ENABLE failed.\n"); ++ return 1; ++ } ++ ++ return 0; ++} ++ ++/* erase one block or chip or sector as needed */ ++static int ec_unit_erase(unsigned char erase_cmd, unsigned int addr) ++{ ++ unsigned char status; ++ int ret = 0, i = 0; ++ int unprotect_count = 3; ++ int check_flag = 0; ++ ++ /* enable spicmd writing. */ ++ ec_start_spi(); ++ ++#ifdef EC_ROM_PROTECTION ++ /* added for re-check SPICMD_READ_STATUS */ ++ while (unprotect_count-- > 0) { ++ if (EC_ROM_unprotect()) { ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ /* first time:500ms --> 5.5sec -->10.5sec */ ++ for (i = 0; i < ((2 - unprotect_count) * 100 + 10); i++) ++ udelay(50000); ++ ec_write(REG_XBISPICMD, SPICMD_READ_STATUS); ++ if (rom_instruction_cycle(SPICMD_READ_STATUS) ++ == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : SPICMD_READ_STATUS failed.\n"); ++ } else { ++ status = ec_read(REG_XBISPIDAT); ++ printk(KERN_INFO "Read unprotect status : 0x%x\n", ++ status); ++ if ((status & 0x1C) == 0x00) { ++ printk(KERN_INFO ++ "Read unprotect status OK1 : 0x%x\n", ++ status & 0x1C); ++ check_flag = 1; ++ break; ++ } ++ } ++ } ++ ++ if (!check_flag) { ++ printk(KERN_INFO "SPI ROM unprotect fail.\n"); ++ return 1; ++ } ++#endif ++ ++ /* block address fill */ ++ if (erase_cmd == SPICMD_BLK_ERASE) { ++ ec_write(REG_XBISPIA2, (addr & 0x00ff0000) >> 16); ++ ec_write(REG_XBISPIA1, (addr & 0x0000ff00) >> 8); ++ ec_write(REG_XBISPIA0, (addr & 0x000000ff) >> 0); ++ } ++ ++ /* erase the whole chip first */ ++ ec_write(REG_XBISPICMD, erase_cmd); ++ if (rom_instruction_cycle(erase_cmd) == EC_STATE_BUSY) { ++ printk(KERN_ERR "EC_UNIT_ERASE : erase failed.\n"); ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ out: ++ /* disable spicmd writing. */ ++ ec_stop_spi(); ++ ++ return ret; ++} ++ ++/* update the whole rom content with H/W mode ++ * PLEASE USING ec_unit_erase() FIRSTLY ++ */ ++static int ec_program_rom(struct ec_info *info, int flag) ++{ ++ unsigned int addr = 0; ++ unsigned long size = 0; ++ unsigned char *ptr = NULL; ++ unsigned char data; ++ unsigned char val = 0; ++ int ret = 0; ++ int i, j; ++ unsigned char status; ++ ++ /* modify for program serial No. ++ * set IE_START_ADDR & use idle mode, ++ * disable WDD ++ */ ++ if (flag == PROGRAM_FLAG_ROM) { ++ ret = ec_init_reset_mode(); ++ addr = info->start_addr + EC_START_ADDR; ++ printk(KERN_INFO "PROGRAM_FLAG_ROM..............\n"); ++ } else if (flag == PROGRAM_FLAG_IE) { ++ ret = ec_init_idle_mode(); ++ ec_disable_WDD(); ++ addr = info->start_addr + IE_START_ADDR; ++ printk(KERN_INFO "PROGRAM_FLAG_IE..............\n"); ++ } else { ++ return 0; ++ } ++ ++ if (ret < 0) { ++ if (flag == PROGRAM_FLAG_IE) ++ ec_enable_WDD(); ++ return ret; ++ } ++ ++ size = info->size; ++ ptr = info->buf; ++ printk(KERN_INFO "starting update ec ROM..............\n"); ++ ++ ret = ec_unit_erase(SPICMD_BLK_ERASE, addr); ++ if (ret) { ++ printk(KERN_ERR "program ec : erase block failed.\n"); ++ goto out; ++ } ++ printk(KERN_ERR "program ec : erase block OK.\n"); ++ ++ i = 0; ++ while (i < size) { ++ data = *(ptr + i); ++ ec_write_byte(addr, data); ++ ec_read_byte(addr, &val); ++ if (val != data) { ++ ec_write_byte(addr, data); ++ ec_read_byte(addr, &val); ++ if (val != data) { ++ printk(KERN_INFO ++ "EC : Second flash program failed at:\t"); ++ printk(KERN_INFO ++ "addr : 0x%x, source : 0x%x, dest: 0x%x\n", ++ addr, data, val); ++ printk(KERN_INFO "This should not happen... STOP\n"); ++ break; ++ } ++ } ++ i++; ++ addr++; ++ } ++ ++#ifdef EC_ROM_PROTECTION ++ /* we should start spi access firstly */ ++ ec_start_spi(); ++ ++ /* enable write spi flash */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_ENABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_ENABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : SPICMD_WRITE_ENABLE failed.\n"); ++ goto out1; ++ } ++ ++ /* protect the status register of rom */ ++ ec_write(REG_XBISPICMD, SPICMD_READ_STATUS); ++ if (rom_instruction_cycle(SPICMD_READ_STATUS) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : SPICMD_READ_STATUS failed.\n"); ++ goto out1; ++ } ++ status = ec_read(REG_XBISPIDAT); ++ ++ ec_write(REG_XBISPIDAT, status | 0x1C); ++ if (ec_instruction_cycle() < 0) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : write status value failed.\n"); ++ goto out1; ++ } ++ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_STATUS); ++ if (rom_instruction_cycle(SPICMD_WRITE_STATUS) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : SPICMD_WRITE_STATUS failed.\n"); ++ goto out1; ++ } ++#endif ++ ++ /* disable the write action to spi rom */ ++ ec_write(REG_XBISPICMD, SPICMD_WRITE_DISABLE); ++ if (rom_instruction_cycle(SPICMD_WRITE_DISABLE) == EC_STATE_BUSY) { ++ printk(KERN_ERR ++ "EC_PROGRAM_ROM : SPICMD_WRITE_DISABLE failed.\n"); ++ goto out1; ++ } ++ ++ out1: ++ /* we should stop spi access firstly */ ++ ec_stop_spi(); ++ out: ++ /* for security */ ++ for (j = 0; j < 2000; j++) ++ udelay(1000); ++ ++ /* modify for program serial No. ++ * after program No exit idle mode ++ * and enable WDD ++ */ ++ if (flag == PROGRAM_FLAG_ROM) { ++ /* exit from the reset mode */ ++ ec_exit_reset_mode(); ++ } else { ++ /* ec exit from idle mode */ ++ ret = ec_exit_idle_mode(); ++ ec_enable_WDD(); ++ if (ret < 0) ++ return ret; ++ } ++ ++ return 0; ++} ++ ++/* ioctl */ ++static int misc_ioctl(struct inode *inode, struct file *filp, u_int cmd, ++ u_long arg) ++{ ++ struct ec_info ecinfo; ++ void __user *ptr = (void __user *)arg; ++ struct ec_reg *ecreg = (struct ec_reg *)(filp->private_data); ++ int ret = 0; ++ ++ switch (cmd) { ++ case IOCTL_RDREG: ++ ret = copy_from_user(ecreg, ptr, sizeof(struct ec_reg)); ++ if (ret) { ++ printk(KERN_ERR "reg read : copy from user error.\n"); ++ return -EFAULT; ++ } ++ if ((ecreg->addr > EC_MAX_REGADDR) ++ || (ecreg->addr < EC_MIN_REGADDR)) { ++ printk(KERN_ERR ++ "reg read : out of register address range.\n"); ++ return -EINVAL; ++ } ++ ecreg->val = ec_read(ecreg->addr); ++ ret = copy_to_user(ptr, ecreg, sizeof(struct ec_reg)); ++ if (ret) { ++ printk(KERN_ERR "reg read : copy to user error.\n"); ++ return -EFAULT; ++ } ++ break; ++ case IOCTL_WRREG: ++ ret = copy_from_user(ecreg, ptr, sizeof(struct ec_reg)); ++ if (ret) { ++ printk(KERN_ERR "reg write : copy from user error.\n"); ++ return -EFAULT; ++ } ++ if ((ecreg->addr > EC_MAX_REGADDR) ++ || (ecreg->addr < EC_MIN_REGADDR)) { ++ printk(KERN_ERR ++ "reg write : out of register address range.\n"); ++ return -EINVAL; ++ } ++ ec_write(ecreg->addr, ecreg->val); ++ break; ++ case IOCTL_READ_EC: ++ ret = copy_from_user(ecreg, ptr, sizeof(struct ec_reg)); ++ if (ret) { ++ printk(KERN_ERR "spi read : copy from user error.\n"); ++ return -EFAULT; ++ } ++ if ((ecreg->addr > EC_RAM_ADDR) ++ && (ecreg->addr < EC_MAX_REGADDR)) { ++ printk(KERN_ERR ++ "spi read : out of register address range.\n"); ++ return -EINVAL; ++ } ++ ec_read_byte(ecreg->addr, &(ecreg->val)); ++ ret = copy_to_user(ptr, ecreg, sizeof(struct ec_reg)); ++ if (ret) { ++ printk(KERN_ERR "spi read : copy to user error.\n"); ++ return -EFAULT; ++ } ++ break; ++ case IOCTL_PROGRAM_IE: ++ ecinfo.start_addr = EC_START_ADDR; ++ ecinfo.size = EC_CONTENT_MAX_SIZE; ++ ecinfo.buf = (u8 *) kmalloc(ecinfo.size, GFP_KERNEL); ++ if (ecinfo.buf == NULL) { ++ printk(KERN_ERR "program ie : kmalloc failed.\n"); ++ return -ENOMEM; ++ } ++ ret = copy_from_user(ecinfo.buf, (u8 *) ptr, ecinfo.size); ++ if (ret) { ++ printk(KERN_ERR "program ie : copy from user error.\n"); ++ kfree(ecinfo.buf); ++ ecinfo.buf = NULL; ++ return -EFAULT; ++ } ++ ++ /* use ec_program_rom to write serial No */ ++ ec_program_rom(&ecinfo, PROGRAM_FLAG_IE); ++ ++ kfree(ecinfo.buf); ++ ecinfo.buf = NULL; ++ break; ++ case IOCTL_PROGRAM_EC: ++ ecinfo.start_addr = EC_START_ADDR; ++ if (get_user((ecinfo.size), (u32 *) ptr)) { ++ printk(KERN_ERR "program ec : get user error.\n"); ++ return -EFAULT; ++ } ++ if ((ecinfo.size) > EC_CONTENT_MAX_SIZE) { ++ printk(KERN_ERR "program ec : size out of limited.\n"); ++ return -EINVAL; ++ } ++ ecinfo.buf = (u8 *) kmalloc(ecinfo.size, GFP_KERNEL); ++ if (ecinfo.buf == NULL) { ++ printk(KERN_ERR "program ec : kmalloc failed.\n"); ++ return -ENOMEM; ++ } ++ ret = copy_from_user(ecinfo.buf, ((u8 *) ptr + 4), ecinfo.size); ++ if (ret) { ++ printk(KERN_ERR "program ec : copy from user error.\n"); ++ kfree(ecinfo.buf); ++ ecinfo.buf = NULL; ++ return -EFAULT; ++ } ++ ++ ec_program_rom(&ecinfo, PROGRAM_FLAG_ROM); ++ ++ kfree(ecinfo.buf); ++ ecinfo.buf = NULL; ++ break; ++ ++ default: ++ break; ++ } ++ ++ return 0; ++} ++ ++static long misc_compat_ioctl(struct file *file, unsigned int cmd, ++ unsigned long arg) ++{ ++ return misc_ioctl(file->f_dentry->d_inode, file, cmd, arg); ++} ++ ++static int misc_open(struct inode *inode, struct file *filp) ++{ ++ struct ec_reg *ecreg = NULL; ++ ecreg = kmalloc(sizeof(struct ec_reg), GFP_KERNEL); ++ if (ecreg) ++ filp->private_data = ecreg; ++ ++ return ecreg ? 0 : -ENOMEM; ++} ++ ++static int misc_release(struct inode *inode, struct file *filp) ++{ ++ struct ec_reg *ecreg = (struct ec_reg *)(filp->private_data); ++ ++ filp->private_data = NULL; ++ kfree(ecreg); ++ ++ return 0; ++} ++ ++static const struct file_operations ecmisc_fops = { ++ .open = misc_open, ++ .release = misc_release, ++ .read = NULL, ++ .write = NULL, ++#ifdef CONFIG_64BIT ++ .compat_ioctl = misc_compat_ioctl, ++#else ++ .ioctl = misc_ioctl, ++#endif ++}; ++ ++static struct miscdevice ecmisc_device = { ++ .minor = MISC_DYNAMIC_MINOR, ++ .name = EC_MISC_DEV, ++ .fops = &ecmisc_fops ++}; ++ ++static int __init ecmisc_init(void) ++{ ++ int ret; ++ ++ printk(KERN_INFO "EC misc device init.\n"); ++ ret = misc_register(&ecmisc_device); ++ ++ return ret; ++} ++ ++static void __exit ecmisc_exit(void) ++{ ++ printk(KERN_INFO "EC misc device exit.\n"); ++ misc_deregister(&ecmisc_device); ++} ++ ++module_init(ecmisc_init); ++module_exit(ecmisc_exit); ++ ++MODULE_AUTHOR("liujl <liujl@lemote.com>"); ++MODULE_DESCRIPTION("Driver for flushing/dumping ROM of EC on YeeLoong laptop"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/platform/mips/yeeloong_laptop.c b/drivers/platform/mips/yeeloong_laptop.c +new file mode 100644 +index 0000000..c285a67 +--- /dev/null ++++ b/drivers/platform/mips/yeeloong_laptop.c +@@ -0,0 +1,1360 @@ ++/* ++ * Driver for YeeLoong laptop extras ++ * ++ * Copyright (C) 2009 Lemote Inc. ++ * Author: Wu Zhangjin <wuzhangjin@gmail.com>, Liu Junliang <liujl@lemote.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/err.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/backlight.h> /* for backlight subdriver */ ++#include <linux/fb.h> ++#include <linux/hwmon.h> /* for hwmon subdriver */ ++#include <linux/hwmon-sysfs.h> ++#include <linux/video_output.h> /* for video output subdriver */ ++#include <linux/lcd.h> /* for lcd output subdriver */ ++#include <linux/input.h> /* for hotkey subdriver */ ++#include <linux/input/sparse-keymap.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/power_supply.h> /* for AC & Battery subdriver */ ++#include <linux/reboot.h> /* for register_reboot_notifier */ ++#include <linux/suspend.h> /* for register_pm_notifier */ ++ ++#include <cs5536/cs5536.h> ++ ++#include <loongson.h> /* for loongson_cmdline */ ++#include <ec_kb3310b.h> ++ ++#define ON 1 ++#define OFF 0 ++#define EVENT_START EVENT_LID ++ ++/* common function */ ++#define EC_VER_LEN 64 ++ ++static int ec_version_before(char *version) ++{ ++ char *p, ec_ver[EC_VER_LEN]; ++ ++ p = strstr(loongson_cmdline, "EC_VER="); ++ if (!p) ++ memset(ec_ver, 0, EC_VER_LEN); ++ else { ++ strncpy(ec_ver, p, EC_VER_LEN); ++ p = strstr(ec_ver, " "); ++ if (p) ++ *p = '\0'; ++ } ++ ++ return (strncasecmp(ec_ver, version, 64) < 0); ++} ++ ++/* backlight subdriver */ ++#define MIN_BRIGHTNESS 1 ++#define MAX_BRIGHTNESS 8 ++ ++static int yeeloong_set_brightness(struct backlight_device *bd) ++{ ++ unsigned char level; ++ static unsigned char old_level; ++ ++ level = (bd->props.fb_blank == FB_BLANK_UNBLANK && ++ bd->props.power == FB_BLANK_UNBLANK) ? ++ bd->props.brightness : 0; ++ ++ level = clamp_val(level, MIN_BRIGHTNESS, MAX_BRIGHTNESS); ++ ++ /* Avoid to modify the brightness when EC is tuning it */ ++ if (old_level != level) { ++ if (ec_read(REG_DISPLAY_BRIGHTNESS) == old_level) ++ ec_write(REG_DISPLAY_BRIGHTNESS, level); ++ old_level = level; ++ } ++ ++ return 0; ++} ++ ++static int yeeloong_get_brightness(struct backlight_device *bd) ++{ ++ return ec_read(REG_DISPLAY_BRIGHTNESS); ++} ++ ++static struct backlight_ops backlight_ops = { ++ .get_brightness = yeeloong_get_brightness, ++ .update_status = yeeloong_set_brightness, ++}; ++ ++static struct backlight_device *yeeloong_backlight_dev; ++ ++static int yeeloong_backlight_init(void) ++{ ++ int ret; ++ struct backlight_properties props; ++ ++ memset(&props, 0, sizeof(struct backlight_properties)); ++ props.max_brightness = MAX_BRIGHTNESS; ++ props.type = BACKLIGHT_PLATFORM; ++ yeeloong_backlight_dev = backlight_device_register("backlight0", NULL, ++ NULL, &backlight_ops, &props); ++ ++ if (IS_ERR(yeeloong_backlight_dev)) { ++ ret = PTR_ERR(yeeloong_backlight_dev); ++ yeeloong_backlight_dev = NULL; ++ return ret; ++ } ++ ++ yeeloong_backlight_dev->props.brightness = ++ yeeloong_get_brightness(yeeloong_backlight_dev); ++ backlight_update_status(yeeloong_backlight_dev); ++ ++ return 0; ++} ++ ++static void yeeloong_backlight_exit(void) ++{ ++ if (yeeloong_backlight_dev) { ++ backlight_device_unregister(yeeloong_backlight_dev); ++ yeeloong_backlight_dev = NULL; ++ } ++} ++ ++/* AC & Battery subdriver */ ++ ++static struct power_supply yeeloong_ac, yeeloong_bat; ++ ++#define RET (val->intval) ++ ++#define BAT_CAP_CRITICAL 5 ++#define BAT_CAP_HIGH 95 ++ ++#define get_bat(type) \ ++ ec_read(REG_BAT_##type) ++ ++#define get_bat_l(type) \ ++ ((get_bat(type##_HIGH) << 8) | get_bat(type##_LOW)) ++ ++static int yeeloong_get_ac_props(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ if (psp == POWER_SUPPLY_PROP_ONLINE) ++ RET = !!(get_bat(POWER) & BIT_BAT_POWER_ACIN); ++ ++ return 0; ++} ++ ++static enum power_supply_property yeeloong_ac_props[] = { ++ POWER_SUPPLY_PROP_ONLINE, ++}; ++ ++static struct power_supply yeeloong_ac = { ++ .name = "yeeloong-ac", ++ .type = POWER_SUPPLY_TYPE_MAINS, ++ .properties = yeeloong_ac_props, ++ .num_properties = ARRAY_SIZE(yeeloong_ac_props), ++ .get_property = yeeloong_get_ac_props, ++}; ++ ++static inline bool is_bat_in(void) ++{ ++ return !!(get_bat(STATUS) & BIT_BAT_STATUS_IN); ++} ++ ++static int get_bat_temp(void) ++{ ++ return get_bat_l(TEMPERATURE) * 10; ++} ++ ++static int get_bat_current(void) ++{ ++ return -(s16)get_bat_l(CURRENT); ++} ++ ++static int get_bat_voltage(void) ++{ ++ return get_bat_l(VOLTAGE); ++} ++ ++static char *get_manufacturer(void) ++{ ++ return (get_bat(VENDOR) == FLAG_BAT_VENDOR_SANYO) ? "SANYO" : "SIMPLO"; ++} ++ ++static int get_relative_cap(void) ++{ ++ /* ++ * When the relative capacity becomes 2, the hardware is observed to ++ * have been turned off forcely. so, we must tune it be suitable to ++ * make the software do related actions. ++ */ ++ int tmp = get_bat_l(RELATIVE_CAP); ++ ++ if (tmp <= (BAT_CAP_CRITICAL * 2)) ++ tmp -= 3; ++ ++ return tmp; ++} ++ ++static int yeeloong_get_bat_props(struct power_supply *psy, ++ enum power_supply_property psp, ++ union power_supply_propval *val) ++{ ++ switch (psp) { ++ /* Fixed information */ ++ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: ++ /* mV -> µV */ ++ RET = get_bat_l(DESIGN_VOL) * 1000; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: ++ /* mAh->µAh */ ++ RET = get_bat_l(DESIGN_CAP) * 1000; ++ break; ++ case POWER_SUPPLY_PROP_CHARGE_FULL: ++ /* µAh */ ++ RET = get_bat_l(FULLCHG_CAP) * 1000; ++ break; ++ case POWER_SUPPLY_PROP_MANUFACTURER: ++ val->strval = get_manufacturer(); ++ break; ++ /* Dynamic information */ ++ case POWER_SUPPLY_PROP_PRESENT: ++ RET = is_bat_in(); ++ break; ++ case POWER_SUPPLY_PROP_CURRENT_NOW: ++ /* mA -> µA */ ++ RET = is_bat_in() ? get_bat_current() * 1000 : 0; ++ break; ++ case POWER_SUPPLY_PROP_VOLTAGE_NOW: ++ /* mV -> µV */ ++ RET = is_bat_in() ? get_bat_voltage() * 1000 : 0; ++ break; ++ case POWER_SUPPLY_PROP_TEMP: ++ /* Celcius */ ++ RET = is_bat_in() ? get_bat_temp() : 0; ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY: ++ RET = is_bat_in() ? get_relative_cap() : 0; ++ break; ++ case POWER_SUPPLY_PROP_CAPACITY_LEVEL: { ++ int status; ++ ++ if (!is_bat_in()) { ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; ++ break; ++ } ++ ++ status = get_bat(STATUS); ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; ++ ++ if (unlikely(status & BIT_BAT_STATUS_DESTROY)) { ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; ++ break; ++ } ++ ++ if (status & BIT_BAT_STATUS_FULL) ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_FULL; ++ else { ++ int curr_cap = get_relative_cap(); ++ ++ if (status & BIT_BAT_STATUS_LOW) { ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_LOW; ++ if (curr_cap <= BAT_CAP_CRITICAL) ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; ++ } else if (curr_cap >= BAT_CAP_HIGH) ++ RET = POWER_SUPPLY_CAPACITY_LEVEL_HIGH; ++ } ++ } break; ++ case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: ++ /* seconds */ ++ RET = is_bat_in() ? (get_relative_cap() - 3) * 54 + 142 : 0; ++ break; ++ case POWER_SUPPLY_PROP_STATUS: { ++ int charge = get_bat(CHARGE); ++ ++ RET = POWER_SUPPLY_STATUS_UNKNOWN; ++ if (charge & FLAG_BAT_CHARGE_DISCHARGE) ++ RET = POWER_SUPPLY_STATUS_DISCHARGING; ++ else if (charge & FLAG_BAT_CHARGE_CHARGE) ++ RET = POWER_SUPPLY_STATUS_CHARGING; ++ } break; ++ case POWER_SUPPLY_PROP_HEALTH: { ++ int status; ++ ++ if (!is_bat_in()) { ++ RET = POWER_SUPPLY_HEALTH_UNKNOWN; ++ break; ++ } ++ ++ status = get_bat(STATUS); ++ RET = POWER_SUPPLY_HEALTH_GOOD; ++ ++ if (status & (BIT_BAT_STATUS_DESTROY | ++ BIT_BAT_STATUS_LOW)) ++ RET = POWER_SUPPLY_HEALTH_DEAD; ++ if (get_bat(CHARGE_STATUS) & ++ BIT_BAT_CHARGE_STATUS_OVERTEMP) ++ RET = POWER_SUPPLY_HEALTH_OVERHEAT; ++ } break; ++ case POWER_SUPPLY_PROP_CHARGE_NOW: /* 1/100(%)*1000 µAh */ ++ RET = get_relative_cap() * get_bat_l(FULLCHG_CAP) * 10; ++ break; ++ default: ++ return -EINVAL; ++ } ++ return 0; ++} ++#undef RET ++ ++static enum power_supply_property yeeloong_bat_props[] = { ++ POWER_SUPPLY_PROP_STATUS, ++ POWER_SUPPLY_PROP_PRESENT, ++ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, ++ POWER_SUPPLY_PROP_CHARGE_FULL, ++ POWER_SUPPLY_PROP_CHARGE_NOW, ++ POWER_SUPPLY_PROP_CURRENT_NOW, ++ POWER_SUPPLY_PROP_VOLTAGE_NOW, ++ POWER_SUPPLY_PROP_HEALTH, ++ POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, ++ POWER_SUPPLY_PROP_CAPACITY, ++ POWER_SUPPLY_PROP_CAPACITY_LEVEL, ++ POWER_SUPPLY_PROP_TEMP, ++ POWER_SUPPLY_PROP_MANUFACTURER, ++}; ++ ++static struct power_supply yeeloong_bat = { ++ .name = "yeeloong-bat", ++ .type = POWER_SUPPLY_TYPE_BATTERY, ++ .properties = yeeloong_bat_props, ++ .num_properties = ARRAY_SIZE(yeeloong_bat_props), ++ .get_property = yeeloong_get_bat_props, ++}; ++ ++static int ac_bat_initialized; ++ ++static int yeeloong_bat_init(void) ++{ ++ int ret; ++ ++ ret = power_supply_register(NULL, &yeeloong_ac); ++ if (ret) ++ return ret; ++ ret = power_supply_register(NULL, &yeeloong_bat); ++ if (ret) { ++ power_supply_unregister(&yeeloong_ac); ++ return ret; ++ } ++ ac_bat_initialized = 1; ++ ++ return 0; ++} ++ ++static void yeeloong_bat_exit(void) ++{ ++ ac_bat_initialized = 0; ++ ++ power_supply_unregister(&yeeloong_ac); ++ power_supply_unregister(&yeeloong_bat); ++} ++/* hwmon subdriver */ ++ ++#define MIN_FAN_SPEED 0 ++#define MAX_FAN_SPEED 3 ++ ++#define get_fan(type) \ ++ ec_read(REG_FAN_##type) ++ ++#define set_fan(type, val) \ ++ ec_write(REG_FAN_##type, val) ++ ++static inline int get_fan_speed_level(void) ++{ ++ return get_fan(SPEED_LEVEL); ++} ++static inline void set_fan_speed_level(int speed) ++{ ++ set_fan(SPEED_LEVEL, speed); ++} ++ ++static inline int get_fan_mode(void) ++{ ++ return get_fan(AUTO_MAN_SWITCH); ++} ++static inline void set_fan_mode(int mode) ++{ ++ set_fan(AUTO_MAN_SWITCH, mode); ++} ++ ++/* ++ * 3 different modes: Full speed(0); manual mode(1); auto mode(2) ++ */ ++static int get_fan_pwm_enable(void) ++{ ++ return (get_fan_mode() == BIT_FAN_AUTO) ? 2 : ++ (get_fan_speed_level() == MAX_FAN_SPEED) ? 0 : 1; ++} ++ ++static void set_fan_pwm_enable(int mode) ++{ ++ set_fan_mode((mode == 2) ? BIT_FAN_AUTO : BIT_FAN_MANUAL); ++ if (mode == 0) ++ set_fan_speed_level(MAX_FAN_SPEED); ++} ++ ++static int get_fan_pwm(void) ++{ ++ return get_fan_speed_level(); ++} ++ ++static void set_fan_pwm(int value) ++{ ++ if (get_fan_mode() != BIT_FAN_MANUAL) ++ return; ++ ++ value = clamp_val(value, MIN_FAN_SPEED, MAX_FAN_SPEED); ++ ++ /* We must ensure the fan is on */ ++ if (value > 0) ++ set_fan(CONTROL, ON); ++ ++ set_fan_speed_level(value); ++} ++ ++static inline int get_fan_speed(void) ++{ ++ return ((get_fan(SPEED_HIGH) & 0x0f) << 8) | get_fan(SPEED_LOW); ++} ++ ++static int get_fan_rpm(void) ++{ ++ return FAN_SPEED_DIVIDER / get_fan_speed(); ++} ++ ++static int get_cpu_temp(void) ++{ ++ return (s8)ec_read(REG_TEMPERATURE_VALUE) * 1000; ++} ++ ++static int get_cpu_temp_max(void) ++{ ++ return 60 * 1000; ++} ++ ++static int get_bat_temp_alarm(void) ++{ ++ return !!(get_bat(CHARGE_STATUS) & BIT_BAT_CHARGE_STATUS_OVERTEMP); ++} ++ ++static ssize_t store_sys_hwmon(void (*set) (int), const char *buf, size_t count) ++{ ++ int ret; ++ unsigned long value; ++ ++ if (!count) ++ return 0; ++ ++ ret = strict_strtoul(buf, 10, &value); ++ if (ret) ++ return ret; ++ ++ set(value); ++ ++ return count; ++} ++ ++static ssize_t show_sys_hwmon(int (*get) (void), char *buf) ++{ ++ return sprintf(buf, "%d\n", get()); ++} ++ ++#define CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \ ++ static ssize_t show_##_name(struct device *dev, \ ++ struct device_attribute *attr, \ ++ char *buf) \ ++ { \ ++ return show_sys_hwmon(_set, buf); \ ++ } \ ++ static ssize_t store_##_name(struct device *dev, \ ++ struct device_attribute *attr, \ ++ const char *buf, size_t count) \ ++ { \ ++ return store_sys_hwmon(_get, buf, count); \ ++ } \ ++ static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0); ++ ++CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, get_fan_rpm, NULL); ++CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR, get_fan_pwm, set_fan_pwm); ++CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, get_fan_pwm_enable, ++ set_fan_pwm_enable); ++CREATE_SENSOR_ATTR(temp1_input, S_IRUGO, get_cpu_temp, NULL); ++CREATE_SENSOR_ATTR(temp1_max, S_IRUGO, get_cpu_temp_max, NULL); ++CREATE_SENSOR_ATTR(temp2_input, S_IRUGO, get_bat_temp, NULL); ++CREATE_SENSOR_ATTR(temp2_max_alarm, S_IRUGO, get_bat_temp_alarm, NULL); ++CREATE_SENSOR_ATTR(curr1_input, S_IRUGO, get_bat_current, NULL); ++CREATE_SENSOR_ATTR(in1_input, S_IRUGO, get_bat_voltage, NULL); ++ ++static ssize_t ++show_name(struct device *dev, struct device_attribute *attr, char *buf) ++{ ++ return sprintf(buf, "yeeloong\n"); ++} ++ ++static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0); ++ ++static struct attribute *hwmon_attributes[] = { ++ &sensor_dev_attr_pwm1.dev_attr.attr, ++ &sensor_dev_attr_pwm1_enable.dev_attr.attr, ++ &sensor_dev_attr_fan1_input.dev_attr.attr, ++ &sensor_dev_attr_temp1_input.dev_attr.attr, ++ &sensor_dev_attr_temp1_max.dev_attr.attr, ++ &sensor_dev_attr_temp2_input.dev_attr.attr, ++ &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, ++ &sensor_dev_attr_curr1_input.dev_attr.attr, ++ &sensor_dev_attr_in1_input.dev_attr.attr, ++ &sensor_dev_attr_name.dev_attr.attr, ++ NULL ++}; ++ ++static struct attribute_group hwmon_attribute_group = { ++ .attrs = hwmon_attributes ++}; ++ ++static struct device *yeeloong_hwmon_dev; ++ ++static int yeeloong_hwmon_init(void) ++{ ++ int ret; ++ ++ yeeloong_hwmon_dev = hwmon_device_register(NULL); ++ if (IS_ERR(yeeloong_hwmon_dev)) { ++ yeeloong_hwmon_dev = NULL; ++ return PTR_ERR(yeeloong_hwmon_dev); ++ } ++ ret = sysfs_create_group(&yeeloong_hwmon_dev->kobj, ++ &hwmon_attribute_group); ++ if (ret) { ++ hwmon_device_unregister(yeeloong_hwmon_dev); ++ yeeloong_hwmon_dev = NULL; ++ return ret; ++ } ++ /* ensure fan is set to auto mode */ ++ set_fan_pwm_enable(2); ++ ++ return 0; ++} ++ ++static void yeeloong_hwmon_exit(void) ++{ ++ if (yeeloong_hwmon_dev) { ++ sysfs_remove_group(&yeeloong_hwmon_dev->kobj, ++ &hwmon_attribute_group); ++ hwmon_device_unregister(yeeloong_hwmon_dev); ++ yeeloong_hwmon_dev = NULL; ++ } ++} ++ ++/* video output subdriver */ ++ ++#define LCD 0 ++#define CRT 1 ++#define VOD_NUM 2 /* The total number of video output device*/ ++ ++static struct output_device *vod[VOD_NUM]; ++ ++static int vor[] = {REG_DISPLAY_LCD, REG_CRT_DETECT}; ++ ++static int get_vo_dev(struct output_device *od) ++{ ++ int i, dev; ++ ++ dev = -1; ++ for (i = 0; i < VOD_NUM; i++) ++ if (od == vod[i]) ++ dev = i; ++ ++ return dev; ++} ++ ++static int vo_get_status(int dev) ++{ ++ return ec_read(vor[dev]); ++} ++ ++static int yeeloong_vo_get_status(struct output_device *od) ++{ ++ int vd; ++ ++ vd = get_vo_dev(od); ++ if (vd != -1) ++ return vo_get_status(vd); ++ ++ return -ENODEV; ++} ++ ++static void vo_set_state(int dev, int state) ++{ ++ int addr; ++ unsigned long value; ++ ++ switch (dev) { ++ case LCD: ++ addr = 0x31; ++ break; ++ case CRT: ++ addr = 0x21; ++ break; ++ default: ++ /* return directly if the wrong video output device */ ++ return; ++ } ++ ++ outb(addr, 0x3c4); ++ value = inb(0x3c5); ++ ++ switch (dev) { ++ case LCD: ++ value |= (state ? 0x03 : 0x02); ++ break; ++ case CRT: ++ if (state) ++ clear_bit(7, &value); ++ else ++ set_bit(7, &value); ++ break; ++ default: ++ break; ++ } ++ ++ outb(addr, 0x3c4); ++ outb(value, 0x3c5); ++ ++ if (dev == LCD) ++ ec_write(REG_BACKLIGHT_CTRL, state); ++} ++ ++static int yeeloong_vo_set_state(struct output_device *od) ++{ ++ int vd; ++ ++ vd = get_vo_dev(od); ++ if (vd == -1) ++ return -ENODEV; ++ ++ if (vd == CRT && !vo_get_status(vd)) ++ return 0; ++ ++ vo_set_state(vd, !!od->request_state); ++ ++ return 0; ++} ++ ++static struct output_properties vop = { ++ .set_state = yeeloong_vo_set_state, ++ .get_status = yeeloong_vo_get_status, ++}; ++ ++static int yeeloong_vo_init(void) ++{ ++ int ret, i; ++ char dev_name[VOD_NUM][4] = {"LCD", "CRT"}; ++ ++ /* Register video output device: lcd, crt */ ++ for (i = 0; i < VOD_NUM; i++) { ++ vod[i] = video_output_register(dev_name[i], NULL, NULL, &vop); ++ if (IS_ERR(vod[i])) { ++ if (i != 0) ++ video_output_unregister(vod[i-1]); ++ ret = PTR_ERR(vod[i]); ++ vod[i] = NULL; ++ return ret; ++ } ++ } ++ /* Ensure LCD is on by default */ ++ vo_set_state(LCD, ON); ++ ++ /* ++ * Turn off CRT by default, and will be enabled when the CRT ++ * connectting event reported by SCI ++ */ ++ vo_set_state(CRT, OFF); ++ ++ return 0; ++} ++ ++static void yeeloong_vo_exit(void) ++{ ++ int i; ++ ++ for (i = 0; i < VOD_NUM; i++) { ++ if (vod[i]) { ++ video_output_unregister(vod[i]); ++ vod[i] = NULL; ++ } ++ } ++} ++ ++/* lcd subdriver */ ++ ++struct lcd_device *lcd[VOD_NUM]; ++ ++static int get_lcd_dev(struct lcd_device *ld) ++{ ++ int i, dev; ++ ++ dev = -1; ++ for (i = 0; i < VOD_NUM; i++) ++ if (ld == lcd[i]) ++ dev = i; ++ ++ return dev; ++} ++ ++static int yeeloong_lcd_set_power(struct lcd_device *ld, int power) ++{ ++ int dev = get_lcd_dev(ld); ++ ++ if (power == FB_BLANK_UNBLANK) ++ vo_set_state(dev, ON); ++ if (power == FB_BLANK_POWERDOWN) ++ vo_set_state(dev, OFF); ++ ++ return 0; ++} ++ ++static int yeeloong_lcd_get_power(struct lcd_device *ld) ++{ ++ return vo_get_status(get_lcd_dev(ld)); ++} ++ ++static struct lcd_ops lcd_ops = { ++ .set_power = yeeloong_lcd_set_power, ++ .get_power = yeeloong_lcd_get_power, ++}; ++ ++static int yeeloong_lcd_init(void) ++{ ++ int ret, i; ++ char dev_name[VOD_NUM][4] = {"LCD", "CRT"}; ++ ++ /* Register video output device: lcd, crt */ ++ for (i = 0; i < VOD_NUM; i++) { ++ lcd[i] = lcd_device_register(dev_name[i], NULL, NULL, &lcd_ops); ++ if (IS_ERR(lcd[i])) { ++ if (i != 0) ++ lcd_device_unregister(lcd[i-1]); ++ ret = PTR_ERR(lcd[i]); ++ lcd[i] = NULL; ++ return ret; ++ } ++ } ++#if 0 ++ /* This has been done by the vide output driver */ ++ ++ /* Ensure LCD is on by default */ ++ vo_set_state(LCD, ON); ++ ++ /* ++ * Turn off CRT by default, and will be enabled when the CRT ++ * connectting event reported by SCI ++ */ ++ vo_set_state(CRT, OFF); ++#endif ++ return 0; ++} ++ ++static void yeeloong_lcd_exit(void) ++{ ++ int i; ++ ++ for (i = 0; i < VOD_NUM; i++) { ++ if (lcd[i]) { ++ lcd_device_unregister(lcd[i]); ++ lcd[i] = NULL; ++ } ++ } ++} ++ ++/* hotkey subdriver */ ++ ++static struct input_dev *yeeloong_hotkey_dev; ++ ++static atomic_t reboot_flag, sleep_flag; ++#define in_sleep() (&sleep_flag) ++#define in_reboot() (&reboot_flag) ++ ++static const struct key_entry yeeloong_keymap[] = { ++ {KE_SW, EVENT_LID, { SW_LID } }, ++ {KE_KEY, EVENT_CAMERA, { KEY_CAMERA } }, /* Fn + ESC */ ++ {KE_KEY, EVENT_SLEEP, { KEY_SLEEP } }, /* Fn + F1 */ ++ {KE_KEY, EVENT_BLACK_SCREEN, { KEY_DISPLAYTOGGLE } }, /* Fn + F2 */ ++ {KE_KEY, EVENT_DISPLAY_TOGGLE, { KEY_SWITCHVIDEOMODE } }, /* Fn + F3 */ ++ {KE_KEY, EVENT_AUDIO_MUTE, { KEY_MUTE } }, /* Fn + F4 */ ++ {KE_KEY, EVENT_WLAN, { KEY_WLAN } }, /* Fn + F5 */ ++ {KE_KEY, EVENT_DISPLAY_BRIGHTNESS, { KEY_BRIGHTNESSUP } }, /* Fn + up */ ++ {KE_KEY, EVENT_DISPLAY_BRIGHTNESS, { KEY_BRIGHTNESSDOWN } }, /* Fn + down */ ++ {KE_KEY, EVENT_AUDIO_VOLUME, { KEY_VOLUMEUP } }, /* Fn + right */ ++ {KE_KEY, EVENT_AUDIO_VOLUME, { KEY_VOLUMEDOWN } }, /* Fn + left */ ++ {KE_END, 0} ++}; ++ ++static int is_fake_event(u16 keycode) ++{ ++ switch (keycode) { ++ case KEY_SLEEP: ++ case SW_LID: ++ return atomic_read(in_sleep()) | atomic_read(in_reboot()); ++ break; ++ default: ++ break; ++ } ++ return 0; ++} ++ ++static struct key_entry *get_event_key_entry(int event, int status) ++{ ++ struct key_entry *ke; ++ static int old_brightness_status = -1; ++ static int old_volume_status = -1; ++ ++ ke = sparse_keymap_entry_from_scancode(yeeloong_hotkey_dev, event); ++ if (!ke) ++ return NULL; ++ ++ switch (event) { ++ case EVENT_DISPLAY_BRIGHTNESS: ++ /* current status > old one, means up */ ++ if ((status < old_brightness_status) || (0 == status)) ++ ke++; ++ old_brightness_status = status; ++ break; ++ case EVENT_AUDIO_VOLUME: ++ if ((status < old_volume_status) || (0 == status)) ++ ke++; ++ old_volume_status = status; ++ break; ++ default: ++ break; ++ } ++ ++ return ke; ++} ++ ++static int report_lid_switch(int status) ++{ ++ static int old_status; ++ ++ /* ++ * LID is a switch button, so, two continuous same status should be ++ * ignored ++ */ ++ if (old_status != status) { ++ input_report_switch(yeeloong_hotkey_dev, SW_LID, !status); ++ input_sync(yeeloong_hotkey_dev); ++ } ++ old_status = status; ++ ++ return status; ++} ++ ++static int crt_detect_handler(int status) ++{ ++ /* ++ * When CRT is inserted, enable its output and disable the LCD output, ++ * otherwise, do reversely. ++ */ ++ vo_set_state(CRT, status); ++ vo_set_state(LCD, !status); ++ ++ return status; ++} ++ ++static int displaytoggle_handler(int status) ++{ ++ /* EC(>=PQ1D26) does this job for us, we can not do it again, ++ * otherwise, the brightness will not resume to the normal level! */ ++ if (ec_version_before("EC_VER=PQ1D26")) ++ vo_set_state(LCD, status); ++ ++ return status; ++} ++ ++static int mypow(int x, int y) ++{ ++ int i, j = x; ++ ++ for (i = 1; i < y; i++) ++ j *= j; ++ ++ return j; ++} ++ ++static int switchvideomode_handler(int status) ++{ ++ /* Default status: CRT|LCD = 0|1 = 1 */ ++ static int bin_state = 1; ++ int i; ++ ++ /* ++ * Only enable switch video output button ++ * when CRT is connected ++ */ ++ if (!vo_get_status(CRT)) ++ return 0; ++ /* ++ * 2. no CRT connected: LCD on, CRT off ++ * 3. BOTH on ++ * 0. BOTH off ++ * 1. LCD off, CRT on ++ */ ++ ++ bin_state++; ++ if (bin_state > mypow(2, VOD_NUM) - 1) ++ bin_state = 0; ++ ++ for (i = 0; i < VOD_NUM; i++) ++ vo_set_state(i, bin_state & (1 << i)); ++ ++ return bin_state; ++} ++ ++static int camera_handler(int status) ++{ ++ int value; ++ ++ value = ec_read(REG_CAMERA_CONTROL); ++ ec_write(REG_CAMERA_CONTROL, value | (1 << 1)); ++ ++ return status; ++} ++ ++static int usb2_handler(int status) ++{ ++ pr_emerg("USB2 Over Current occurred\n"); ++ ++ return status; ++} ++ ++static int usb0_handler(int status) ++{ ++ pr_emerg("USB0 Over Current occurred\n"); ++ ++ return status; ++} ++ ++static int ac_bat_handler(int status) ++{ ++ if (ac_bat_initialized) { ++ power_supply_changed(&yeeloong_ac); ++ power_supply_changed(&yeeloong_bat); ++ } ++ ++ return status; ++} ++ ++struct sci_event { ++ int reg; ++ sci_handler handler; ++}; ++ ++static const struct sci_event se[] = { ++ [EVENT_AC_BAT] = {0, ac_bat_handler}, ++ [EVENT_AUDIO_MUTE] = {REG_AUDIO_MUTE, NULL}, ++ [EVENT_AUDIO_VOLUME] = {REG_AUDIO_VOLUME, NULL}, ++ [EVENT_CRT_DETECT] = {REG_CRT_DETECT, crt_detect_handler}, ++ [EVENT_CAMERA] = {REG_CAMERA_STATUS, camera_handler}, ++ [EVENT_BLACK_SCREEN] = {REG_DISPLAY_LCD, displaytoggle_handler}, ++ [EVENT_DISPLAY_BRIGHTNESS] = {REG_DISPLAY_BRIGHTNESS, NULL}, ++ [EVENT_LID] = {REG_LID_DETECT, NULL}, ++ [EVENT_DISPLAY_TOGGLE] = {0, switchvideomode_handler}, ++ [EVENT_USB_OC0] = {REG_USB2_FLAG, usb0_handler}, ++ [EVENT_USB_OC2] = {REG_USB2_FLAG, usb2_handler}, ++ [EVENT_WLAN] = {REG_WLAN, NULL}, ++}; ++ ++static void do_event_action(int event) ++{ ++ int status = -1; ++ struct key_entry *ke; ++ struct sci_event *sep; ++ ++ sep = (struct sci_event *)&se[event]; ++ ++ if (sep->reg != 0) ++ status = ec_read(sep->reg); ++ ++ if (status == -1) { ++ /* ec_read hasn't been called, status is invalid */ ++ return; ++ } ++ ++ if (sep->handler != NULL) ++ status = sep->handler(status); ++ ++ pr_debug("%s: event: %d status: %d\n", __func__, event, status); ++ ++ /* Report current key to user-space */ ++ ke = get_event_key_entry(event, status); ++ ++ /* ++ * Ignore the LID and SLEEP event when we are already in sleep or ++ * reboot state, this will avoid the recursive pm operations. but note: ++ * the report_lid_switch() called in arch/mips/loongson/lemote-2f/pm.c ++ * is necessary, because it is used to wake the system from sleep ++ * state. In the future, perhaps SW_LID should works like SLEEP, no ++ * need to function as a SWITCH, just report the state when the LID is ++ * closed is enough, this event can tell the software to "SLEEP", no ++ * need to tell the softwares when we are resuming from "SLEEP". ++ */ ++ if (ke && !is_fake_event(ke->keycode)) { ++ if (ke->keycode == SW_LID) ++ report_lid_switch(status); ++ else ++ sparse_keymap_report_entry(yeeloong_hotkey_dev, ke, 1, ++ true); ++ } ++} ++ ++/* ++ * SCI(system control interrupt) main interrupt routine ++ * ++ * We will do the query and get event number together so the interrupt routine ++ * should be longer than 120us now at least 3ms elpase for it. ++ */ ++static irqreturn_t sci_irq_handler(int irq, void *dev_id) ++{ ++ int ret, event; ++ ++ if (SCI_IRQ_NUM != irq) ++ return IRQ_NONE; ++ ++ /* Query the event number */ ++ ret = ec_query_event_num(); ++ if (ret < 0) ++ return IRQ_NONE; ++ ++ event = ec_get_event_num(); ++ if (event < EVENT_START || event > EVENT_END) ++ return IRQ_NONE; ++ ++ /* Execute corresponding actions */ ++ do_event_action(event); ++ ++ return IRQ_HANDLED; ++} ++ ++/* ++ * Config and init some msr and gpio register properly. ++ */ ++static int sci_irq_init(void) ++{ ++ u32 hi, lo; ++ u32 gpio_base; ++ unsigned long flags; ++ int ret; ++ ++ /* Get gpio base */ ++ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &lo); ++ gpio_base = lo & 0xff00; ++ ++ /* Filter the former kb3310 interrupt for security */ ++ ret = ec_query_event_num(); ++ if (ret) ++ return ret; ++ ++ /* For filtering next number interrupt */ ++ udelay(10000); ++ ++ /* Set gpio native registers and msrs for GPIO27 SCI EVENT PIN ++ * gpio : ++ * input, pull-up, no-invert, event-count and value 0, ++ * no-filter, no edge mode ++ * gpio27 map to Virtual gpio0 ++ * msr : ++ * no primary and lpc ++ * Unrestricted Z input to IG10 from Virtual gpio 0. ++ */ ++ local_irq_save(flags); ++ _rdmsr(0x80000024, &hi, &lo); ++ lo &= ~(1 << 10); ++ _wrmsr(0x80000024, hi, lo); ++ _rdmsr(0x80000025, &hi, &lo); ++ lo &= ~(1 << 10); ++ _wrmsr(0x80000025, hi, lo); ++ _rdmsr(0x80000023, &hi, &lo); ++ lo |= (0x0a << 0); ++ _wrmsr(0x80000023, hi, lo); ++ local_irq_restore(flags); ++ ++ /* Set gpio27 as sci interrupt ++ * ++ * input, pull-up, no-fliter, no-negedge, invert ++ * the sci event is just about 120us ++ */ ++ asm(".set noreorder\n"); ++ /* input enable */ ++ outl(0x00000800, (gpio_base | 0xA0)); ++ /* revert the input */ ++ outl(0x00000800, (gpio_base | 0xA4)); ++ /* event-int enable */ ++ outl(0x00000800, (gpio_base | 0xB8)); ++ asm(".set reorder\n"); ++ ++ return 0; ++} ++ ++static int notify_reboot(struct notifier_block *nb, unsigned long event, void *buf) ++{ ++ switch (event) { ++ case SYS_RESTART: ++ case SYS_HALT: ++ case SYS_POWER_OFF: ++ atomic_set(in_reboot(), 1); ++ break; ++ default: ++ return NOTIFY_DONE; ++ } ++ ++ return NOTIFY_OK; ++} ++ ++static int notify_pm(struct notifier_block *nb, unsigned long event, void *buf) ++{ ++ switch (event) { ++ case PM_HIBERNATION_PREPARE: ++ case PM_SUSPEND_PREPARE: ++ atomic_inc(in_sleep()); ++ break; ++ case PM_POST_HIBERNATION: ++ case PM_POST_SUSPEND: ++ case PM_RESTORE_PREPARE: /* do we need this ?? */ ++ atomic_dec(in_sleep()); ++ break; ++ default: ++ return NOTIFY_DONE; ++ } ++ ++ pr_debug("%s: event = %lu, in_sleep() = %d\n", __func__, event, ++ atomic_read(in_sleep())); ++ ++ return NOTIFY_OK; ++} ++ ++static struct notifier_block reboot_notifier = { ++ .notifier_call = notify_reboot, ++}; ++ ++static struct notifier_block pm_notifier = { ++ .notifier_call = notify_pm, ++}; ++ ++static int yeeloong_hotkey_init(void) ++{ ++ int ret = 0; ++ ++ ret = register_reboot_notifier(&reboot_notifier); ++ if (ret) { ++ pr_err("Can't register reboot notifier\n"); ++ goto end; ++ } ++ ++ ret = register_pm_notifier(&pm_notifier); ++ if (ret) { ++ pr_err("Can't register pm notifier\n"); ++ goto free_reboot_notifier; ++ } ++ ++ ret = sci_irq_init(); ++ if (ret) { ++ pr_err("Can't init SCI interrupt\n"); ++ goto free_pm_notifier; ++ } ++ ++ ret = request_threaded_irq(SCI_IRQ_NUM, NULL, &sci_irq_handler, ++ IRQF_ONESHOT, "sci", NULL); ++ if (ret) { ++ pr_err("Can't thread SCI interrupt handler\n"); ++ goto free_pm_notifier; ++ } ++ ++ yeeloong_hotkey_dev = input_allocate_device(); ++ ++ if (!yeeloong_hotkey_dev) { ++ ret = -ENOMEM; ++ goto free_irq; ++ } ++ ++ yeeloong_hotkey_dev->name = "HotKeys"; ++ yeeloong_hotkey_dev->phys = "button/input0"; ++ yeeloong_hotkey_dev->id.bustype = BUS_HOST; ++ yeeloong_hotkey_dev->dev.parent = NULL; ++ ++ ret = sparse_keymap_setup(yeeloong_hotkey_dev, yeeloong_keymap, NULL); ++ if (ret) { ++ pr_err("Failed to setup input device keymap\n"); ++ goto free_dev; ++ } ++ ++ ret = input_register_device(yeeloong_hotkey_dev); ++ if (ret) ++ goto free_keymap; ++ ++ /* Update the current status of LID */ ++ report_lid_switch(ON); ++ ++#ifdef CONFIG_LOONGSON_SUSPEND ++ /* Install the real yeeloong_report_lid_status for pm.c */ ++ yeeloong_report_lid_status = report_lid_switch; ++#endif ++ return 0; ++ ++free_keymap: ++ sparse_keymap_free(yeeloong_hotkey_dev); ++free_dev: ++ input_free_device(yeeloong_hotkey_dev); ++free_irq: ++ free_irq(SCI_IRQ_NUM, NULL); ++free_pm_notifier: ++ unregister_pm_notifier(&pm_notifier); ++free_reboot_notifier: ++ unregister_reboot_notifier(&reboot_notifier); ++end: ++ return ret; ++} ++ ++static void yeeloong_hotkey_exit(void) ++{ ++ /* Free irq */ ++ free_irq(SCI_IRQ_NUM, NULL); ++ ++#ifdef CONFIG_LOONGSON_SUSPEND ++ /* Uninstall yeeloong_report_lid_status for pm.c */ ++ if (yeeloong_report_lid_status == report_lid_switch) ++ yeeloong_report_lid_status = NULL; ++#endif ++ ++ if (yeeloong_hotkey_dev) { ++ sparse_keymap_free(yeeloong_hotkey_dev); ++ input_unregister_device(yeeloong_hotkey_dev); ++ yeeloong_hotkey_dev = NULL; ++ } ++} ++ ++#ifdef CONFIG_PM ++static void usb_ports_set(int status) ++{ ++ status = !!status; ++ ++ ec_write(REG_USB0_FLAG, status); ++ ec_write(REG_USB1_FLAG, status); ++ ec_write(REG_USB2_FLAG, status); ++} ++ ++static int yeeloong_suspend(struct device *dev) ++ ++{ ++ if (ec_version_before("EC_VER=PQ1D27")) ++ vo_set_state(LCD, OFF); ++ vo_set_state(CRT, OFF); ++ usb_ports_set(OFF); ++ ++ return 0; ++} ++ ++static int yeeloong_resume(struct device *dev) ++{ ++ int ret; ++ ++ if (ec_version_before("EC_VER=PQ1D27")) ++ vo_set_state(LCD, ON); ++ vo_set_state(CRT, ON); ++ usb_ports_set(ON); ++ ++ ret = sci_irq_init(); ++ if (ret) ++ return -EFAULT; ++ ++ return 0; ++} ++ ++static const SIMPLE_DEV_PM_OPS(yeeloong_pm_ops, yeeloong_suspend, ++ yeeloong_resume); ++#endif ++ ++static struct platform_device_id platform_device_ids[] = { ++ { ++ .name = "yeeloong_laptop", ++ }, ++ {} ++}; ++ ++MODULE_DEVICE_TABLE(platform, platform_device_ids); ++ ++static struct platform_driver platform_driver = { ++ .driver = { ++ .name = "yeeloong_laptop", ++ .owner = THIS_MODULE, ++#ifdef CONFIG_PM ++ .pm = &yeeloong_pm_ops, ++#endif ++ }, ++ .id_table = platform_device_ids, ++}; ++ ++static int __init yeeloong_init(void) ++{ ++ int ret; ++ ++ pr_info("YeeLoong Laptop platform specific driver loaded.\n"); ++ ++ /* Register platform stuff */ ++ ret = platform_driver_register(&platform_driver); ++ if (ret) { ++ pr_err("Failed to register YeeLoong platform driver.\n"); ++ return ret; ++ } ++ ++#define yeeloong_init_drv(drv, alias) do { \ ++ pr_info("Registered YeeLoong " alias " driver.\n"); \ ++ ret = yeeloong_ ## drv ## _init(); \ ++ if (ret) { \ ++ pr_err("Failed to register YeeLoong " alias " driver.\n"); \ ++ yeeloong_ ## drv ## _exit(); \ ++ return ret; \ ++ } \ ++} while (0) ++ ++ yeeloong_init_drv(backlight, "backlight"); ++ yeeloong_init_drv(bat, "battery and AC"); ++ yeeloong_init_drv(hwmon, "hardware monitor"); ++ yeeloong_init_drv(vo, "video output"); ++ yeeloong_init_drv(lcd, "lcd output"); ++ yeeloong_init_drv(hotkey, "hotkey input"); ++ ++ return 0; ++} ++ ++static void __exit yeeloong_exit(void) ++{ ++ yeeloong_hotkey_exit(); ++ yeeloong_lcd_exit(); ++ yeeloong_vo_exit(); ++ yeeloong_hwmon_exit(); ++ yeeloong_bat_exit(); ++ yeeloong_backlight_exit(); ++ platform_driver_unregister(&platform_driver); ++ ++ pr_info("YeeLoong platform specific driver unloaded.\n"); ++} ++ ++module_init(yeeloong_init); ++module_exit(yeeloong_exit); ++ ++MODULE_AUTHOR("Wu Zhangjin <wuzhangjin@gmail.com>; Liu Junliang <liujl@lemote.com>"); ++MODULE_DESCRIPTION("YeeLoong laptop driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig +index db933de..1232c4b 100644 +--- a/drivers/rtc/Kconfig ++++ b/drivers/rtc/Kconfig +@@ -649,6 +649,7 @@ comment "Platform RTC drivers" + config RTC_DRV_CMOS + tristate "PC-style 'CMOS'" + depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 ++ depends on !DEXXON_GDIUM + default y if X86 + help + Say "yes" here to get direct support for the real time clock +diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c +index 6176d98..e40ce80 100644 +--- a/drivers/staging/sm7xxfb/sm7xxfb.c ++++ b/drivers/staging/sm7xxfb/sm7xxfb.c +@@ -101,6 +101,7 @@ static struct vesa_mode vesa_mode_table[] = { + {"0x307", 1280, 1024, 8}, + + {"0x311", 640, 480, 16}, ++ {"0x313", 800, 480, 16}, + {"0x314", 800, 600, 16}, + {"0x317", 1024, 768, 16}, + {"0x31A", 1280, 1024, 16}, +diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c +index 3586460..15f66e5 100644 +--- a/drivers/usb/host/ohci-hcd.c ++++ b/drivers/usb/host/ohci-hcd.c +@@ -864,9 +864,13 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) + } + + if (ints & OHCI_INTR_WDH) { +- spin_lock (&ohci->lock); +- dl_done_list (ohci); +- spin_unlock (&ohci->lock); ++ if (ohci->hcca->done_head == 0) { ++ ints &= ~OHCI_INTR_WDH; ++ } else { ++ spin_lock (&ohci->lock); ++ dl_done_list (ohci); ++ spin_unlock (&ohci->lock); ++ } + } + + if (quirk_zfmicro(ohci) && (ints & OHCI_INTR_SF)) { +diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c +index 2f3aceb..6647c3f 100644 +--- a/drivers/usb/host/pci-quirks.c ++++ b/drivers/usb/host/pci-quirks.c +@@ -454,6 +454,7 @@ void usb_amd_dev_put(void) + } + EXPORT_SYMBOL_GPL(usb_amd_dev_put); + ++#if defined(CONFIG_USB_UHCI_HCD) || defined(CONFIG_USB_UHCI_HCD_MODULE) + /* + * Make sure the controller is completely inactive, unable to + * generate interrupts or do DMA. +@@ -561,12 +562,16 @@ static void quirk_usb_handoff_uhci(struct pci_dev *pdev) + if (base) + uhci_check_and_reset_hc(pdev, base); + } ++#else ++#define quirk_usb_handoff_uhci(x) do { } while (0) ++#endif /* CONFIG_USB_UHCI_HCD* */ + + static int mmio_resource_enabled(struct pci_dev *pdev, int idx) + { + return pci_resource_start(pdev, idx) && mmio_enabled(pdev); + } + ++#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) + static void quirk_usb_handoff_ohci(struct pci_dev *pdev) + { + void __iomem *base; +@@ -633,7 +638,11 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) + /* Now the controller is safely in SUSPEND and nothing can wake it up */ + iounmap(base); + } ++#else ++#define quirk_usb_handoff_ohci(x) do { } while(0) ++#endif /* CONFIG_USB_OHCI_HCD* */ + ++#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) + static const struct dmi_system_id ehci_dmi_nohandoff_table[] = { + { + /* Pegatron Lucid (ExoPC) */ +@@ -806,6 +815,9 @@ static void quirk_usb_disable_ehci(struct pci_dev *pdev) + + iounmap(base); + } ++#else ++#define quirk_usb_disable_ehci(x) do { } while (0) ++#endif /* CONFIG_USB_EHCI_HCD* */ + + /* + * handshake - spin reading a register until handshake completes +@@ -945,6 +957,7 @@ void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) + } + EXPORT_SYMBOL_GPL(usb_disable_xhci_ports); + ++#if defined(CONFIG_USB_XHCI_HCD) || defined(CONFIG_USB_XHCI_HCD_MODULE) + /** + * PCI Quirks for xHCI. + * +@@ -1052,6 +1065,9 @@ hc_init: + + iounmap(base); + } ++#else ++#define quirk_usb_handoff_xhci(x) do { } while (0) ++#endif /* CONFIG_USB_UHCI_HCD* */ + + static void quirk_usb_early_handoff(struct pci_dev *pdev) + { +diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c +index 9da566a..fffecfb 100644 +--- a/drivers/usb/serial/option.c ++++ b/drivers/usb/serial/option.c +@@ -79,6 +79,9 @@ static void option_instat_callback(struct urb *urb); + #define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100 + #define OPTION_PRODUCT_GTM380_MODEM 0x7201 + ++#define HUAWO_VENDOR_ID 0x21F5 ++#define HUAWO_PRODUCT_E1621 0x2008 ++ + #define HUAWEI_VENDOR_ID 0x12D1 + #define HUAWEI_PRODUCT_E173 0x140C + #define HUAWEI_PRODUCT_E1750 0x1406 +@@ -610,6 +613,7 @@ static const struct usb_device_id option_ids[] = { + { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLE) }, + { USB_DEVICE(QUANTA_VENDOR_ID, 0xea42), + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, ++ { USB_DEVICE(HUAWO_VENDOR_ID, HUAWO_PRODUCT_E1621) }, /* QUANTA 6500 chips, Unicom extensive use of this card */ + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1c05, USB_CLASS_COMM, 0x02, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1c1f, USB_CLASS_COMM, 0x02, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1c23, USB_CLASS_COMM, 0x02, 0xff) }, +diff --git a/include/linux/sm501.h b/include/linux/sm501.h +index 02fde50..a8677f0 100644 +--- a/include/linux/sm501.h ++++ b/include/linux/sm501.h +@@ -27,6 +27,9 @@ extern unsigned long sm501_set_clock(struct device *dev, + extern unsigned long sm501_find_clock(struct device *dev, + int clksrc, unsigned long req_freq); + ++extern void sm501_configure_gpio(struct device *dev, ++ unsigned int gpio, unsigned char mode); ++ + /* sm501_misc_control + * + * Modify the SM501's MISC_CONTROL register +@@ -122,6 +125,7 @@ struct sm501_reg_init { + #define SM501_USE_AC97 (1<<7) + #define SM501_USE_I2S (1<<8) + #define SM501_USE_GPIO (1<<9) ++#define SM501_USE_PWM (1<<10) + + #define SM501_USE_ALL (0xffffffff) + +diff --git a/init/calibrate.c b/init/calibrate.c +index 520702d..e78762a 100644 +--- a/init/calibrate.c ++++ b/init/calibrate.c +@@ -21,6 +21,7 @@ static int __init lpj_setup(char *str) + + __setup("lpj=", lpj_setup); + ++#ifndef ARCH_HAS_PREPARED_LPJ + #ifdef ARCH_HAS_READ_CURRENT_TIMER + + /* This routine uses the read_current_timer() routine and gets the +@@ -171,6 +172,7 @@ static unsigned long calibrate_delay_direct(void) + return 0; + } + #endif ++#endif /* ARCH_HAS_PREPARED_LPJ */ + + /* + * This is the number of bits of precision for the loops_per_jiffy. Each +@@ -282,6 +284,7 @@ void calibrate_delay(void) + lpj = lpj_fine; + pr_info("Calibrating delay loop (skipped), " + "value calculated using timer frequency.. "); ++#ifndef ARCH_HAS_PREPARED_LPJ + } else if ((lpj = calibrate_delay_is_known())) { + ; + } else if ((lpj = calibrate_delay_direct()) != 0) { +@@ -292,6 +295,7 @@ void calibrate_delay(void) + if (!printed) + pr_info("Calibrating delay loop... "); + lpj = calibrate_delay_converge(); ++#endif /* ARCH_HAS_PREPARED_LPJ */ + } + per_cpu(cpu_loops_per_jiffy, this_cpu) = lpj; + if (!printed) +diff --git a/net/rfkill/core.c b/net/rfkill/core.c +index ed7e0b4..6cb1ae8 100644 +--- a/net/rfkill/core.c ++++ b/net/rfkill/core.c +@@ -111,7 +111,7 @@ static LIST_HEAD(rfkill_list); /* list of registered rf switches */ + static DEFINE_MUTEX(rfkill_global_mutex); + static LIST_HEAD(rfkill_fds); /* list of open fds of /dev/rfkill */ + +-static unsigned int rfkill_default_state = 1; ++static unsigned int rfkill_default_state; /* default: 0 = radio off */ + module_param_named(default_state, rfkill_default_state, uint, 0444); + MODULE_PARM_DESC(default_state, + "Default initial state for all radio types, 0 = radio off"); +diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl +index 91280b8..6b147ae 100755 +--- a/scripts/recordmcount.pl ++++ b/scripts/recordmcount.pl +@@ -307,14 +307,33 @@ if ($arch eq "x86_64") { + $cc .= " -m64"; + $objcopy .= " -O elf64-sparc"; + } elsif ($arch eq "mips") { +- # To enable module support, we need to enable the -mlong-calls option +- # of gcc for module, after using this option, we can not get the real +- # offset of the calling to _mcount, but the offset of the lui +- # instruction or the addiu one. herein, we record the address of the +- # first one, and then we can replace this instruction by a branch +- # instruction to jump over the profiling function to filter the +- # indicated functions, or swith back to the lui instruction to trace +- # them, which means dynamic tracing. ++ # <For kernel> ++ # To disable tracing, just replace "jal _mcount" with nop; ++ # to enable tracing, replace back. so, the offset 14 is ++ # needed to be recorded. ++ # ++ # 10: 03e0082d move at,ra ++ # 14: 0c000000 jal 0 ++ # 14: R_MIPS_26 _mcount ++ # 14: R_MIPS_NONE *ABS* ++ # 14: R_MIPS_NONE *ABS* ++ # 18: 00020021 nop ++ # ++ # <For module> ++ # ++ # If no long call(-mlong-calls), the same to kernel. ++ # ++ # If the module space differs from the kernel space, long ++ # call is needed, as a result, the address of _mcount is ++ # needed to be recorded in a register and then jump from ++ # module space to kernel space via "jalr <register>". To ++ # disable tracing, "jalr <register>" can be replaced by ++ # nop; to enable tracing, replace it back. Since the ++ # offset of "jalr <register>" is not easy to be matched, ++ # the offset of the 1st _mcount below is recorded and to ++ # disable tracing, "lui v1, 0x0" is substituted with "b ++ # label", which jumps over "jalr <register>"; to enable ++ # tracing, replace it back. + # + # c: 3c030000 lui v1,0x0 + # c: R_MIPS_HI16 _mcount +@@ -326,19 +345,12 @@ if ($arch eq "x86_64") { + # 10: R_MIPS_NONE *ABS* + # 14: 03e0082d move at,ra + # 18: 0060f809 jalr v1 ++ # label: + # +- # for the kernel: +- # +- # 10: 03e0082d move at,ra +- # 14: 0c000000 jal 0 <loongson_halt> +- # 14: R_MIPS_26 _mcount +- # 14: R_MIPS_NONE *ABS* +- # 14: R_MIPS_NONE *ABS* +- # 18: 00020021 nop + if ($is_module eq "0") { + $mcount_regex = "^\\s*([0-9a-fA-F]+): R_MIPS_26\\s+_mcount\$"; + } else { +- $mcount_regex = "^\\s*([0-9a-fA-F]+): R_MIPS_HI16\\s+_mcount\$"; ++ $mcount_regex = "^\\s*([0-9a-fA-F]+): R_MIPS_(HI16|26)\\s+_mcount\$"; + } + $objdump .= " -Melf-trad".$endian."mips "; + +diff --git a/scripts/sstrip.sh b/scripts/sstrip.sh +new file mode 100755 +index 0000000..49b973a +--- /dev/null ++++ b/scripts/sstrip.sh +@@ -0,0 +1,59 @@ ++#!/bin/bash ++# sstrip.sh -- strip the section table of an elf file ++# ++# Copyright (C) 2010 Wu Zhangjin, wuzhangjin@gmail.com ++# Licensed under the GPLv2 ++# ++# Since the section table is useless for the embedded device, it can be ++# stripped out. ++# ++# Note: Some bootloader may check the section table but most of the time, it ++# may be not really used, If it really need the section table, it may need the ++# decompressed kernel image. ++ ++# Usage ++ ++function usage ++{ ++cat <<EOF ++ ++ # sstrip.sh -- strip the section table of an elf file ++ ++ # Input: elf file ++ # Output: truncated elf file without the section table ++ # Usage: sstrip.sh /path/to/image ++ ++EOF ++} ++ ++# Do some necessary check ++IMAGE=$1 ++ ++[ -z "${IMAGE}" ] && echo "$0 : No indicated file to be stripped" && usage && exit -1 ++[ ! -f "${IMAGE}" ] && echo "$0 : ${IMAGE} : No such file" && exit -1 ++FILE_TYPE=`dd if=${IMAGE} bs=1 skip=1 count=3 2>/dev/null` ++[ "xELF" != "x${FILE_TYPE}" ] && echo "$0: ${IMAGE} is not an ELF file" && exit -1 ++ ++[ "x${V}" == "x1" ] && orig_filesz=`wc -c ${IMAGE} | cut -d' ' -f1` ++ ++# Get the offset of the section table, here get the end of the program section ++filesz=$((`${OBJDUMP} -p ${IMAGE} | grep -m1 filesz | tr -s ' ' | cut -d' ' -f3`)) ++ ++# Truncate it via the dd tool ++dd if=/dev/null bs=1 of=${IMAGE} seek=${filesz} 2>/dev/null ++ ++# Clear the section table information in the ELF header ++# The last 6 bytes of the ELF header are the section table information ++echo -ne "\x00\x00\x00\x00\x00\x00" | dd of=${IMAGE} bs=1 seek=46 count=6 conv=notrunc 2>/dev/null ++ ++# Debug ++if [ "x${V}" == "x1" ]; then ++ echo "----------------------------------------------------------------" ++ echo "Strip the section table at ${filesz} of ${IMAGE}" ++ echo "----------------------------------------------------------------" ++ echo " sstrip: $0" ++ echo " objdump: ${OBJDUMP}" ++ echo "original size: ${orig_filesz}" ++ echo "current size: ${filesz}" ++ echo "reduced size: $((${orig_filesz} - ${filesz}))" ++fi |