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authorMarkus Klotzbuecher <mk@denx.de>2008-07-10 10:26:07 +0200
committerMarkus Klotzbuecher <mk@denx.de>2008-07-10 10:26:07 +0200
commit794a5924972fc8073616e98a2668da4a5f9aea90 (patch)
treedd0db39b3e183b5bcb0300d5377d7a0d5ac5fd0c /common/env_common.c
parentf2aeecc320f5b181b30effcaa67683aec8d5a843 (diff)
parent4188f0491886b3b486164e819c0a83fdb97efd7d (diff)
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Merge branch 'master' of git://www.denx.de/git/u-boot
Diffstat (limited to 'common/env_common.c')
-rw-r--r--common/env_common.c56
1 files changed, 33 insertions, 23 deletions
diff --git a/common/env_common.c b/common/env_common.c
index a494812..d51c211 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -50,7 +50,6 @@ extern void env_relocate_spec (void);
extern uchar env_get_char_spec(int);
static uchar env_get_char_init (int index);
-uchar (*env_get_char)(int) = env_get_char_init;
/************************************************************************
* Default settings to be used when no valid environment is found
@@ -134,7 +133,8 @@ uchar default_environment[] = {
"\0"
};
-#if defined(CFG_ENV_IS_IN_NAND) /* Environment is in Nand Flash */
+#if defined(CFG_ENV_IS_IN_NAND) /* Environment is in Nand Flash */ \
+ || defined(CFG_ENV_IS_IN_SPI_FLASH)
int default_environment_size = sizeof(default_environment);
#endif
@@ -182,6 +182,19 @@ uchar env_get_char_memory (int index)
}
#endif
+uchar env_get_char (int index)
+{
+ uchar c;
+
+ /* if relocated to RAM */
+ if (gd->flags & GD_FLG_RELOC)
+ c = env_get_char_memory(index);
+ else
+ c = env_get_char_init(index);
+
+ return (c);
+}
+
uchar *env_get_addr (int index)
{
if (gd->env_valid) {
@@ -191,6 +204,23 @@ uchar *env_get_addr (int index)
}
}
+void set_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__,
@@ -215,11 +245,6 @@ void env_relocate (void)
DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
#endif
- /*
- * After relocation to RAM, we can always use the "memory" functions
- */
- env_get_char = env_get_char_memory;
-
if (gd->env_valid == 0) {
#if defined(CONFIG_GTH) || defined(CFG_ENV_IS_NOWHERE) /* Environment not changable */
puts ("Using default environment\n\n");
@@ -227,22 +252,7 @@ void env_relocate (void)
puts ("*** Warning - bad CRC, using default environment\n\n");
show_boot_progress (-60);
#endif
-
- 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;
+ set_default_env();
}
else {
env_relocate_spec ();