diff options
Diffstat (limited to 'target/linux/ar71xx/files/arch')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ar71xx/prom.c | 181 |
1 files changed, 114 insertions, 67 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c index 24373cdca..23493cdb9 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/string.h> #include <asm/bootinfo.h> #include <asm/addrspace.h> @@ -26,10 +27,6 @@ struct board_rec { enum ar71xx_mach_type mach_type; }; -static int ar71xx_prom_argc __initdata; -static char **ar71xx_prom_argv __initdata; -static char **ar71xx_prom_envp __initdata; - static struct board_rec boards[] __initdata = { { .name = "411", @@ -92,6 +89,9 @@ static struct board_rec boards[] __initdata = { .name = "WRT160NL", .mach_type = AR71XX_MACH_WRT160NL, }, { + .name = "WP543", + .mach_type = AR71XX_MACH_WP543, + }, { .name = "WRT400N", .mach_type = AR71XX_MACH_WRT400N, }, { @@ -109,6 +109,34 @@ static struct board_rec boards[] __initdata = { } }; +static int __init ar71xx_board_setup(char *name) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(boards); i++) + if (strcmp(name, boards[i].name) == 0) { + ar71xx_mach = boards[i].mach_type; + break; + } + + return 1; +} +__setup("board=", ar71xx_board_setup); + +static int __init ar71xx_ethaddr_setup(char *str) +{ + ar71xx_parse_mac_addr(str); + return 1; +} +__setup("ethaddr=", ar71xx_ethaddr_setup); + +static int __init ar71xx_kmac_setup(char *str) +{ + ar71xx_parse_mac_addr(str); + return 1; +} +__setup("kmac=", ar71xx_kmac_setup); + static inline int is_valid_ram_addr(void *addr) { if (((u32) addr > KSEG0) && @@ -122,62 +150,43 @@ static inline int is_valid_ram_addr(void *addr) return 0; } -static __init char *ar71xx_prom_getargv(const char *name) +static void __init ar71xx_prom_append_cmdline(const char *name, + const char *value) { - int len = strlen(name); - int i; - - if (!is_valid_ram_addr(ar71xx_prom_argv)) - return NULL; - - for (i = 0; i < ar71xx_prom_argc; i++) { - char *argv = ar71xx_prom_argv[i]; - - if (!is_valid_ram_addr(argv)) - continue; + char buf[CL_SIZE]; - if (strncmp(name, argv, len) == 0 && (argv)[len] == '=') - return argv + len + 1; - } - - return NULL; + snprintf(buf, sizeof(buf), " %s=%s", name, value); + strlcat(arcs_cmdline, buf, sizeof(arcs_cmdline)); } -static __init char *ar71xx_prom_getenv(const char *envname) +static void __init ar71xx_prom_find_env(char **envp, const char *name) { - int len = strlen(envname); - char **env; + int len = strlen(name); + char **p; - if (!is_valid_ram_addr(ar71xx_prom_envp)) - return NULL; + if (!is_valid_ram_addr(envp)) + return; - for (env = ar71xx_prom_envp; is_valid_ram_addr(*env); env++) { - if (strncmp(envname, *env, len) == 0 && (*env)[len] == '=') - return *env + len + 1; + for (p = envp; is_valid_ram_addr(*p); p++) { + if (strncmp(name, *p, len) == 0 && (*p)[len] == '=') { + ar71xx_prom_append_cmdline(name, *p + len + 1); + break; + } /* RedBoot env comes in pointer pairs - key, value */ - if (strncmp(envname, *env, len) == 0 && (*env)[len] == 0) - if (is_valid_ram_addr(*(++env))) - return *env; + if (strncmp(name, *p, len) == 0 && (*p)[len] == 0) + if (is_valid_ram_addr(*(++p))) { + ar71xx_prom_append_cmdline(name, *p); + break; + } } - - return NULL; } -static __init unsigned long find_board_byname(char *name) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(boards); i++) - if (strcmp(name, boards[i].name) == 0) - return boards[i].mach_type; - - return AR71XX_MACH_GENERIC; -} - -static int ar71xx_prom_init_myloader(void) +static int __init ar71xx_prom_init_myloader(void) { struct myloader_info *mylo; + char mac_buf[32]; + char *mac; mylo = myloader_get_info(); if (!mylo) @@ -185,51 +194,89 @@ static int ar71xx_prom_init_myloader(void) switch (mylo->did) { case DEVID_COMPEX_WP543: - ar71xx_mach = AR71XX_MACH_WP543; + ar71xx_prom_append_cmdline("board", "WP543"); break; default: printk(KERN_WARNING "prom: unknown device id: %x\n", mylo->did); + return 0; } - ar71xx_set_mac_base(mylo->macs[0]); + + mac = mylo->macs[0]; + snprintf(mac_buf, sizeof(mac_buf), "%02x:%02x:%02x:%02x:%02x:%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + + ar71xx_prom_append_cmdline("ethaddr", mac_buf); return 1; } -static void ar71xx_prom_init_generic(void) +#ifdef CONFIG_IMAGE_CMDLINE_HACK +extern char __image_cmdline[]; + +static int __init ar71xx_use__image_cmdline(void) { - char *p; - - ar71xx_prom_argc = fw_arg0; - ar71xx_prom_argv = (char **)fw_arg1; - ar71xx_prom_envp = (char **)fw_arg2; - - p = ar71xx_prom_getargv("board"); - if (!p) - p = ar71xx_prom_getenv("board"); - if (p) - ar71xx_mach = find_board_byname(p); - - p = ar71xx_prom_getenv("ethaddr"); - if (!p) - p = ar71xx_prom_getargv("kmac"); - if (p) - ar71xx_parse_mac_addr(p); + char *p = __image_cmdline; + int replace = 0; + + if (*p == '-') { + replace = 1; + p++; + } + + if (*p == '\0') + return 0; + + if (replace) { + strlcpy(arcs_cmdline, p, sizeof(arcs_cmdline)); + } else { + strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); + strlcat(arcs_cmdline, p, sizeof(arcs_cmdline)); + } + + return 1; +} +#else +static int inline ar71xx_use__image_cmdline(void) { return 0; } +#endif + +static __init void ar71xx_prom_init_cmdline(int argc, char **argv) +{ + int i; + + if (ar71xx_use__image_cmdline()) + return; + + if (!is_valid_ram_addr(argv)) + return; + + for (i = 0; i < argc; i++) + if (is_valid_ram_addr(argv[i])) { + strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); + strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline)); + } } void __init prom_init(void) { + char **envp; + 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); + ar71xx_mach = AR71XX_MACH_GENERIC; if (ar71xx_prom_init_myloader()) return; - ar71xx_prom_init_generic(); + ar71xx_prom_init_cmdline(fw_arg0, (char **)fw_arg1); + + envp = (char **)fw_arg2; + ar71xx_prom_find_env(envp, "board"); + ar71xx_prom_find_env(envp, "ethaddr"); } void __init prom_free_prom_memory(void) |