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--- a/arch/mips/ath79/prom.c
+++ b/arch/mips/ath79/prom.c
@@ -19,6 +19,8 @@
#include "common.h"
+static char ath79_cmdline_buf[COMMAND_LINE_SIZE] __initdata;
+
static inline int is_valid_ram_addr(void *addr)
{
if (((u32) addr > KSEG0) &&
@@ -32,6 +34,41 @@ static inline int is_valid_ram_addr(void
return 0;
}
+static void __init ath79_prom_append_cmdline(const char *name,
+ const char *value)
+{
+ snprintf(ath79_cmdline_buf, sizeof(ath79_cmdline_buf),
+ " %s=%s", name, value);
+ strlcat(arcs_cmdline, ath79_cmdline_buf, sizeof(arcs_cmdline));
+}
+
+static const char * __init ath79_prom_find_env(char **envp, const char *name)
+{
+ const char *ret = NULL;
+ int len;
+ char **p;
+
+ if (!is_valid_ram_addr(envp))
+ return NULL;
+
+ len = strlen(name);
+ for (p = envp; is_valid_ram_addr(*p); p++) {
+ if (strncmp(name, *p, len) == 0 && (*p)[len] == '=') {
+ 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))) {
+ ret = *p;
+ break;
+ }
+ }
+
+ return ret;
+}
+
static __init void ath79_prom_init_cmdline(int argc, char **argv)
{
int i;
@@ -48,7 +85,32 @@ static __init void ath79_prom_init_cmdli
void __init prom_init(void)
{
+ const char *env;
+ char **envp;
+
ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
+
+ envp = (char **)fw_arg2;
+ if (!strstr(arcs_cmdline, "ethaddr=")) {
+ env = ath79_prom_find_env(envp, "ethaddr");
+ if (env)
+ ath79_prom_append_cmdline("ethaddr", env);
+ }
+
+ if (!strstr(arcs_cmdline, "board=")) {
+ env = ath79_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";
+
+ ath79_prom_append_cmdline("board", env);
+ }
+ }
}
void __init prom_free_prom_memory(void)
|
