1 files changed, 101 insertions, 0 deletions
diff --git a/packages/u-boot/u-boot-mkimage-openmoko-native/default-env.patch b/packages/u-boot/u-boot-mkimage-openmoko-native/default-env.patch
new file mode 100644
index 0000000000..b9ae4f29fe
--- /dev/null
+++ b/packages/u-boot/u-boot-mkimage-openmoko-native/default-env.patch
@@ -0,0 +1,101 @@
+common/env_common.c (default_env): new function that resets the environment to
+  the default value
+common/env_common.c (env_relocate): use default_env instead of own copy
+common/env_nand.c (env_relocate_spec): use default_env instead of own copy
+include/environment.h: added default_env prototype
+
+- Werner Almesberger <werner@openmoko.org>
+
+Index: u-boot/common/env_common.c
+===================================================================
+--- u-boot.orig/common/env_common.c
++++ u-boot/common/env_common.c
+@@ -202,6 +202,25 @@ uchar *env_get_addr (int index)
+ 	}
+ }
+ 
++void default_env(void)
++{
++	if (sizeof(default_environment) > ENV_SIZE)
++	{
++		puts ("*** Error - default environment is too large\n\n");
++		return;
++	}
++
++	memset (env_ptr, 0, sizeof(env_t));
++	memcpy (env_ptr->data,
++		default_environment,
++		sizeof(default_environment));
++#ifdef CFG_REDUNDAND_ENVIRONMENT
++	env_ptr->flags = 0xFF;
++#endif
++	env_crc_update ();
++	gd->env_valid = 1;
++}
++
+ void env_relocate (void)
+ {
+ 	DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
+@@ -245,23 +264,8 @@ void env_relocate (void)
+ 		gd->env_valid = 0;
+ #endif
+ 
+-	if (gd->env_valid == 0) {
+-		if (sizeof(default_environment) > ENV_SIZE)
+-		{
+-			puts ("*** Error - default environment is too large\n\n");
+-			return;
+-		}
+-
+-		memset (env_ptr, 0, sizeof(env_t));
+-		memcpy (env_ptr->data,
+-			default_environment,
+-			sizeof(default_environment));
+-#ifdef CFG_REDUNDAND_ENVIRONMENT
+-		env_ptr->flags = 0xFF;
+-#endif
+-		env_crc_update ();
+-		gd->env_valid = 1;
+-	}
++	if (gd->env_valid == 0)
++		default_env();
+ 	else {
+ 		env_relocate_spec ();
+ 	}
+Index: u-boot/common/env_nand.c
+===================================================================
+--- u-boot.orig/common/env_nand.c
++++ u-boot/common/env_nand.c
+@@ -313,19 +313,7 @@ void env_relocate_spec (void)
+ static void use_default()
+ {
+ 	puts ("*** Warning - bad CRC or NAND, using default environment\n\n");
+-
+-	if (default_environment_size > CFG_ENV_SIZE){
+-		puts ("*** Error - default environment is too large\n\n");
+-		return;
+-	}
+-
+-	memset (env_ptr, 0, sizeof(env_t));
+-	memcpy (env_ptr->data,
+-			default_environment,
+-			default_environment_size);
+-	env_ptr->crc = crc32(0, env_ptr->data, ENV_SIZE);
+-	gd->env_valid = 1;
+-
++	default_env();
+ }
+ #endif
+ 
+Index: u-boot/include/environment.h
+===================================================================
+--- u-boot.orig/include/environment.h
++++ u-boot/include/environment.h
+@@ -107,4 +107,7 @@ typedef	struct environment_s {
+ 	unsigned char	data[ENV_SIZE]; /* Environment data		*/
+ } env_t;
+ 
++
++void default_env(void);
++
+ #endif	/* _ENVIRONMENT_H_ */