From: Gabor Juhos Date: Wed, 2 Sep 2009 10:04:12 +0000 (+0000) Subject: share prom code X-Git-Tag: reboot~22520 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=73b20f81944f4be186f63db39d5c37d733afb8be;p=openwrt%2Fstaging%2Flynxis.git share prom code SVN-Revision: 17466 --- diff --git a/target/linux/ramips/files/arch/mips/ralink/common/Makefile b/target/linux/ramips/files/arch/mips/ralink/common/Makefile index 96f348a5a1..c2cf48bcb7 100644 --- a/target/linux/ramips/files/arch/mips/ralink/common/Makefile +++ b/target/linux/ramips/files/arch/mips/ralink/common/Makefile @@ -7,6 +7,6 @@ # under the terms of the GNU General Public License version 2 as published # by the Free Software Foundation. -obj-y := setup.o intc.o gpio.o +obj-y := prom.o setup.o intc.o gpio.o obj-$(CONFIG_RALINK_DEV_GPIO_LEDS) += dev-gpio-leds.o diff --git a/target/linux/ramips/files/arch/mips/ralink/common/prom.c b/target/linux/ramips/files/arch/mips/ralink/common/prom.c new file mode 100644 index 0000000000..edc3c5e46a --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/common/prom.c @@ -0,0 +1,156 @@ +/* + * Ralink SoC specific prom routines + * + * Copyright (C) 2009 Gabor Juhos + * + * 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 +#include +#include + +#include +#include + +#include +#include +#include + +struct board_rec { + char *name; + enum ramips_mach_type mach_type; +}; + +static int ramips_prom_argc __initdata; +static char **ramips_prom_argv __initdata; +static char **ramips_prom_envp __initdata; + +static struct board_rec boards[] __initdata = { + { + .name = "RT-N15", + .mach_type = RAMIPS_MACH_RT_N15, + }, { + .name = "WHR-G300N", + .mach_type = RAMIPS_MACH_WHR_G300N, + } +}; + +static inline void *to_ram_addr(void *addr) +{ + u32 base; + + base = KSEG0ADDR(RALINK_SOC_SDRAM_BASE); + if (((u32) addr > base) && + ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX))) + return addr; + + base = KSEG1ADDR(RALINK_SOC_SDRAM_BASE); + if (((u32) addr > base) && + ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX))) + return addr; + + /* some U-Boot variants uses physical addresses */ + base = RALINK_SOC_SDRAM_BASE; + if (((u32) addr > base) && + ((u32) addr < (base + RALINK_SOC_MEM_SIZE_MAX))) + return (void *)KSEG0ADDR(addr); + + return NULL; +} + +static __init char *ramips_prom_getargv(const char *name) +{ + int len = strlen(name); + int i; + + if (!ramips_prom_argv) { + printk(KERN_DEBUG "argv=%p is invalid, skipping\n", + ramips_prom_argv); + return NULL; + } + + for (i = 0; i < ramips_prom_argc; i++) { + char *argv = to_ram_addr(ramips_prom_argv[i]); + + if (!argv) { + printk(KERN_DEBUG + "argv[%d]=%p is invalid, skipping\n", + i, ramips_prom_argv[i]); + continue; + } + + printk(KERN_DEBUG "argv[%d]: %s\n", i, argv); + if (strncmp(name, argv, len) == 0 && (argv)[len] == '=') + return argv + len + 1; + } + + return NULL; +} + +static __init char *ramips_prom_getenv(const char *envname) +{ +#define PROM_MAX_ENVS 256 + int len = strlen(envname); + char **env; + int i; + + env = ramips_prom_envp; + if (!env) { + printk(KERN_DEBUG "envp=%p is not in RAM, skipping\n", + ramips_prom_envp); + return NULL; + } + + for (i = 0; i < PROM_MAX_ENVS; i++) { + char *p = to_ram_addr(env[i]); + + if (!p) + break; + + printk(KERN_DEBUG "env[%d]: %s\n", i, p); + if (strncmp(envname, p, len) == 0 && p[len] == '=') + return p + len + 1; + } + + return NULL; +#undef PROM_MAX_ENVS +} + +static __init void find_board_byname(char *name) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(boards); i++) + if (strcmp(name, boards[i].name) == 0) { + ramips_mach = boards[i].mach_type; + break; + } +} + +void __init prom_init(void) +{ + char *p; + + printk(KERN_DEBUG + "prom: fw_arg0=%08x, fw_arg1=%08x, fw_arg2=%08x, fw_arg3=%08x\n", + (unsigned int)fw_arg0, (unsigned int)fw_arg1, + (unsigned int)fw_arg2, (unsigned int)fw_arg3); + + ramips_prom_argc = fw_arg0; + ramips_prom_argv = to_ram_addr((void *)fw_arg1); + ramips_prom_envp = to_ram_addr((void *)fw_arg2); + + p = ramips_prom_getargv("board"); + if (!p) + p = ramips_prom_getenv("board"); + if (p) + find_board_byname(p); +} + +void __init prom_free_prom_memory(void) +{ + /* We do not have to prom memory to free */ +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile b/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile index cac4187d6e..ab98fac7e5 100644 --- a/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile @@ -8,7 +8,7 @@ # under the terms of the GNU General Public License version 2 as published # by the Free Software Foundation. -obj-y := prom.o irq.o setup.o rt288x.o devices.o +obj-y := irq.o setup.o rt288x.o devices.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c deleted file mode 100644 index 8becfc92ee..0000000000 --- a/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Ralink RT288x SoC specific prom routines - * - * Copyright (C) 2008 Gabor Juhos - * Copyright (C) 2008 Imre Kaloz - * - * 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 -#include -#include -#include - -#include -#include - -#include -#include - -void __init prom_init(void) -{ - printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, " - "fw_arg2=%08x, fw_arg3=%08x\n", - (unsigned int)fw_arg0, (unsigned int)fw_arg1, - (unsigned int)fw_arg2, (unsigned int)fw_arg3); -} - -void __init prom_free_prom_memory(void) -{ - /* We do not have to prom memory to free */ -} - diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile index 52231fdcce..c7c1c31d74 100644 --- a/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile @@ -7,7 +7,7 @@ # under the terms of the GNU General Public License version 2 as published # by the Free Software Foundation. -obj-y := prom.o irq.o setup.o devices.o rt305x.o +obj-y := irq.o setup.o devices.o rt305x.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c deleted file mode 100644 index 774291ab79..0000000000 --- a/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Ralink RT305x SoC specific prom routines - * - * Copyright (C) 2009 Gabor Juhos - * - * 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 -#include - -#include - -#include -#include -#include -#include - -struct board_rec { - char *name; - enum ramips_mach_type mach_type; -}; - -static int rt305x_prom_argc __initdata; -static char **rt305x_prom_argv __initdata; -static char **rt305x_prom_envp __initdata; - -static struct board_rec boards[] __initdata = { - { - .name = "WHR-G300N", - .mach_type = RAMIPS_MACH_WHR_G300N, - } -}; - -static inline void *to_ram_addr(void *addr) -{ - u32 base; - - base = KSEG0ADDR(RT305X_SDRAM_BASE); - if (((u32) addr > base) && - ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) - return addr; - - base = KSEG1ADDR(RT305X_SDRAM_BASE); - if (((u32) addr > base) && - ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) - return addr; - - /* some U-Boot variants uses physical addresses */ - base = RT305X_SDRAM_BASE; - if (((u32) addr > base) && - ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) - return (void *)KSEG0ADDR(addr); - - return NULL; -} - -static __init char *rt305x_prom_getargv(const char *name) -{ - int len = strlen(name); - int i; - - if (!rt305x_prom_argv) { - printk(KERN_DEBUG "argv=%p is invalid, skipping\n", - rt305x_prom_argv); - return NULL; - } - - for (i = 0; i < rt305x_prom_argc; i++) { - char *argv = to_ram_addr(rt305x_prom_argv[i]); - - if (!argv) { - printk(KERN_DEBUG - "argv[%d]=%p is invalid, skipping\n", - i, rt305x_prom_argv[i]); - continue; - } - - printk(KERN_DEBUG "argv[i]: %s\n", argv); - if (strncmp(name, argv, len) == 0 && (argv)[len] == '=') - return argv + len + 1; - } - - return NULL; -} - -static __init char *rt305x_prom_getenv(const char *envname) -{ - int len = strlen(envname); - char **env; - char *p; - - env = rt305x_prom_envp; - if (!env) { - printk(KERN_DEBUG "envp=%p is not in RAM, skipping\n", - rt305x_prom_envp); - return NULL; - } - - for (p = to_ram_addr(*env); p; env++) { - printk(KERN_DEBUG "env: %s\n", *env); - if (strncmp(envname, p, len) == 0 && (p)[len] == '=') - return p + len + 1; - } - - return NULL; -} - -static __init void find_board_byname(char *name) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(boards); i++) - if (strcmp(name, boards[i].name) == 0) { - ramips_mach = boards[i].mach_type; - break; - } -} - -void __init prom_init(void) -{ - char *p; - - printk(KERN_DEBUG - "prom: fw_arg0=%08x, fw_arg1=%08x, fw_arg2=%08x, fw_arg3=%08x\n", - (unsigned int)fw_arg0, (unsigned int)fw_arg1, - (unsigned int)fw_arg2, (unsigned int)fw_arg3); - - rt305x_prom_argc = fw_arg0; - rt305x_prom_argv = to_ram_addr((void *)fw_arg1); - rt305x_prom_envp = to_ram_addr((void *)fw_arg2); - - p = rt305x_prom_getargv("board"); - if (!p) - p = rt305x_prom_getenv("board"); - if (p) - find_board_byname(p); -} - -void __init prom_free_prom_memory(void) -{ - /* We do not have to prom memory to free */ -}