[MIPS] au1xxx: Support both YAMON and U-Boot
Signed-off-by: Domen Puncer <domen.puncer@ultra.si>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index ae7d8c57bf..b4b010a 100644
--- a/arch/mips/au1000/common/prom.c
+++ b/arch/mips/au1000/common/prom.c
@@ -1,7 +1,7 @@
/*
*
* BRIEF MODULE DESCRIPTION
- * PROM library initialisation code, assuming YAMON is the boot loader.
+ * PROM library initialisation code, supports YAMON and U-Boot.
*
* Copyright 2000, 2001, 2006 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
@@ -46,12 +46,6 @@
extern int prom_argc;
extern char **prom_argv, **prom_envp;
-typedef struct
-{
- char *name;
- char *val;
-} t_env_var;
-
char * prom_getcmdline(void)
{
@@ -84,13 +78,21 @@
{
/*
* Return a pointer to the given environment variable.
+ * YAMON uses "name", "value" pairs, while U-Boot uses "name=value".
*/
- t_env_var *env = (t_env_var *)prom_envp;
+ char **env = prom_envp;
+ int i = strlen(envname);
+ int yamon = (*env && strchr(*env, '=') == NULL);
- while (env->name) {
- if (strcmp(envname, env->name) == 0)
- return env->val;
+ while (*env) {
+ if (yamon) {
+ if (strcmp(envname, *env++) == 0)
+ return *env;
+ } else {
+ if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
+ return *env + i + 1;
+ }
env++;
}
return NULL;