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-rw-r--r--common/env_onenand.c65
1 files changed, 36 insertions, 29 deletions
diff --git a/common/env_onenand.c b/common/env_onenand.c
index cf997bf..02cb535 100644
--- a/common/env_onenand.c
+++ b/common/env_onenand.c
@@ -1,4 +1,7 @@
/*
+ * (C) Copyright 2010 DENX Software Engineering
+ * Wolfgang Denk <wd@denx.de>
+ *
* (C) Copyright 2005-2009 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
@@ -26,6 +29,8 @@
#include <environment.h>
#include <linux/stddef.h>
#include <malloc.h>
+#include <search.h>
+#include <errno.h>
#include <linux/mtd/compat.h>
#include <linux/mtd/mtd.h>
@@ -44,17 +49,13 @@ char *env_name_spec = "OneNAND";
#ifdef ENV_IS_EMBEDDED
extern uchar environment[];
-env_t *env_ptr = (env_t *) (&environment[0]);
-#else /* ! ENV_IS_EMBEDDED */
-static unsigned char onenand_env[ONENAND_MAX_ENV_SIZE];
-env_t *env_ptr = (env_t *) onenand_env;
#endif /* ENV_IS_EMBEDDED */
DECLARE_GLOBAL_DATA_PTR;
uchar env_get_char_spec(int index)
{
- return (*((uchar *) (gd->env_addr + index)));
+ return (*((uchar *)(gd->env_addr + index)));
}
void env_relocate_spec(void)
@@ -63,48 +64,57 @@ void env_relocate_spec(void)
#ifdef CONFIG_ENV_ADDR_FLEX
struct onenand_chip *this = &onenand_chip;
#endif
- loff_t env_addr;
- int use_default = 0;
+ int rc;
size_t retlen;
+#ifdef ENV_IS_EMBEDDED
+ char *buf = (char *)&environment[0];
+#else
+ loff_t env_addr = CONFIG_ENV_ADDR;
+ char onenand_env[ONENAND_MAX_ENV_SIZE];
+ char *buf = (char *)&onenand_env[0];
+#endif /* ENV_IS_EMBEDDED */
- env_addr = CONFIG_ENV_ADDR;
-#ifdef CONFIG_ENV_ADDR_FLEX
+#ifndef ENV_IS_EMBEDDED
+# ifdef CONFIG_ENV_ADDR_FLEX
if (FLEXONENAND(this))
env_addr = CONFIG_ENV_ADDR_FLEX;
-#endif
+# endif
/* Check OneNAND exist */
if (mtd->writesize)
/* Ignore read fail */
mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
- &retlen, (u_char *) env_ptr);
+ &retlen, (u_char *)buf);
else
mtd->writesize = MAX_ONENAND_PAGESIZE;
+#endif /* !ENV_IS_EMBEDDED */
- if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)) != env_ptr->crc)
- use_default = 1;
-
- if (use_default) {
- memcpy(env_ptr->data, default_environment,
- ONENAND_ENV_SIZE(mtd));
- env_ptr->crc =
- crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd));
- }
-
- gd->env_addr = (ulong) & env_ptr->data;
- gd->env_valid = 1;
+ rc = env_import(buf, 1);
+ if (rc)
+ gd->env_valid = 1;
}
int saveenv(void)
{
+ env_t env_new;
+ ssize_t len;
+ char *res;
struct mtd_info *mtd = &onenand_mtd;
#ifdef CONFIG_ENV_ADDR_FLEX
struct onenand_chip *this = &onenand_chip;
#endif
- loff_t env_addr = CONFIG_ENV_ADDR;
+ loff_t env_addr = CONFIG_ENV_ADDR;
+ size_t retlen;
struct erase_info instr = {
.callback = NULL,
};
- size_t retlen;
+
+ 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);
instr.len = CONFIG_ENV_SIZE;
#ifdef CONFIG_ENV_ADDR_FLEX
@@ -122,11 +132,8 @@ int saveenv(void)
return 1;
}
- /* update crc */
- env_ptr->crc = crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd));
-
if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
- (u_char *) env_ptr)) {
+ (u_char *)&env_new)) {
printf("OneNAND: write failed at 0x%llx\n", instr.addr);
return 2;
}