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Diffstat (limited to 'common/env_nvram.c')
-rw-r--r--common/env_nvram.c46
1 files changed, 32 insertions, 14 deletions
diff --git a/common/env_nvram.c b/common/env_nvram.c
index 7c7cf98..6e90f2b 100644
--- a/common/env_nvram.c
+++ b/common/env_nvram.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
@@ -44,6 +44,8 @@
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
+#include <search.h>
+#include <errno.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -59,7 +61,7 @@ char * env_name_spec = "NVRAM";
extern uchar default_environment[];
-uchar env_get_char_spec (int index)
+uchar env_get_char_spec(int index)
{
#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
uchar c;
@@ -72,40 +74,56 @@ uchar env_get_char_spec (int index)
#endif
}
-void env_relocate_spec (void)
+void env_relocate_spec(void)
{
+ char buf[CONFIG_ENV_SIZE];
+
#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
- nvram_read(env_ptr, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
+ nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#else
- memcpy (env_ptr, (void*)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
+ memcpy(buf, (void*)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#endif
+ env_import(buf, 1);
}
-int saveenv (void)
+int saveenv(void)
{
- int rcode = 0;
+ env_t env_new;
+ ssize_t len;
+ char *res;
+ int rcode = 0;
+
+ res = (char *)&env_new.data;
+ len = hexport('\0', &res, ENV_SIZE);
+ if (len < 0) {
+ error("Cannot export environment: errno = %d\n", errno);
+ return 1;
+ }
+ env_new.crc = crc32(0, env_new.data, ENV_SIZE);
+
#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
- nvram_write(CONFIG_ENV_ADDR, env_ptr, CONFIG_ENV_SIZE);
+ nvram_write(CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE);
#else
- if (memcpy ((char *)CONFIG_ENV_ADDR, env_ptr, CONFIG_ENV_SIZE) == NULL)
- rcode = 1 ;
+ if (memcpy((char *)CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE) == NULL)
+ rcode = 1;
#endif
return rcode;
}
-/************************************************************************
+/*
* Initialize Environment use
*
* We are still running from ROM, so data use is limited
*/
-int env_init (void)
+int env_init(void)
{
#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
ulong crc;
uchar data[ENV_SIZE];
- nvram_read (&crc, CONFIG_ENV_ADDR, sizeof(ulong));
- nvram_read (data, CONFIG_ENV_ADDR+sizeof(ulong), ENV_SIZE);
+
+ nvram_read(&crc, CONFIG_ENV_ADDR, sizeof(ulong));
+ nvram_read(data, CONFIG_ENV_ADDR+sizeof(ulong), ENV_SIZE);
if (crc32(0, data, ENV_SIZE) == crc) {
gd->env_addr = (ulong)CONFIG_ENV_ADDR + sizeof(long);