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ar71xx: avoid duplicated 'board' parameter in kernel command line

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SVN-Revision: 21805
This commit is contained in:
Gabor Juhos 2010-06-14 20:02:44 +00:00
parent b7e3430ba5
commit 08c2e29018
1 changed files with 31 additions and 8 deletions
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39
target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
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@ -1,7 +1,7 @@
/*
* Atheros AR71xx SoC specific prom routines
*
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
@ -42,27 +42,31 @@ static void __init ar71xx_prom_append_cmdline(const char *name,
strlcat(arcs_cmdline, buf, sizeof(arcs_cmdline));
}
static void __init ar71xx_prom_find_env(char **envp, const char *name)
static const char * __init ar71xx_prom_find_env(char **envp, const char *name)
{
int len = strlen(name);
const char *ret = NULL;
int len;
char **p;
if (!is_valid_ram_addr(envp))
return;
return NULL;
len = strlen(name);
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);
ret = *p + len + 1;
break;
}
/* RedBoot env comes in pointer pairs - key, value */
if (strncmp(name, *p, len) == 0 && (*p)[len] == 0)
if (is_valid_ram_addr(*(++p))) {
ar71xx_prom_append_cmdline(name, *p);
ret = *p;
break;
}
}
return ret;
}
static int __init ar71xx_prom_init_myloader(void)
@ -142,6 +146,7 @@ static __init void ar71xx_prom_init_cmdline(int argc, char **argv)
void __init prom_init(void)
{
const char *env;
char **envp;
printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
@ -156,8 +161,26 @@ void __init prom_init(void)
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");
if (!strstr(arcs_cmdline, "ethaddr=")) {
env = ar71xx_prom_find_env(envp, "ethaddr");
if (env)
ar71xx_prom_append_cmdline("ethaddr", env);
}
if (!strstr(arcs_cmdline, "board=")) {
env = ar71xx_prom_find_env(envp, "board");
if (env) {
/* Workaround for buggy bootloaders */
if (strcmp(env, "RouterStation") == 0 ||
strcmp(env, "Ubiquiti AR71xx-based board") == 0)
env = "UBNT-RS";
if (strcmp(env, "RouterStation PRO") == 0)
env = "UBNT-RSPRO";
ar71xx_prom_append_cmdline("board", env);
}
}
}
void __init prom_free_prom_memory(void)