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authorGabor Juhos <juhosg@openwrt.org>2010-06-14 20:02:44 +0000
committerGabor Juhos <juhosg@openwrt.org>2010-06-14 20:02:44 +0000
commit08c2e29018c32bafa4a8370783e29c00644465a9 (patch)
treefd863c6c0c4be19f2261b2cf3477d8f5db5baff1 /target/linux/ar71xx
parentb7e3430ba5c8f499cff66a86d2b2b7700b49c1c0 (diff)
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ar71xx: avoid duplicated 'board' parameter in kernel command line
SVN-Revision: 21805
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ar71xx/prom.c39
1 files changed, 31 insertions, 8 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
index 87d6da0067..2accbf8f20 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/prom.c
@@ -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)