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env_mmc: fix cannot save env issue 

The env change its implementation after this log, while env mmc
didn't change it immediately, which cause issue. Follow to the
new style to fix it.

commit ea882baf9c
Author: Wolfgang Denk <wd@denx.de>
Date:   Sun Jun 20 23:33:59 2010 +0200

    New implementation for internal handling of environment variables.

Signed-off-by: Lei Wen <leiwen@marvell.com>
utp
Lei Wen 2010-10-13 11:07:21 +08:00 committed by Wolfgang Denk
parent 1a2d9b30e3
commit e79f48393d
1 changed files with 12 additions and 1 deletions
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13
common/env_mmc.c
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@ -29,6 +29,7 @@
#include <linux/stddef.h>
#include <malloc.h>
#include <mmc.h>
#include <errno.h>
/* references to names in env_common.c */
extern uchar default_environment[];
@ -96,13 +97,23 @@ inline int write_env(struct mmc *mmc, unsigned long size,
int saveenv(void)
{
env_t env_new;
ssize_t len;
char *res;
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
if (init_mmc_for_env(mmc))
return 1;
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);
printf("Writing to MMC(%d)... ", CONFIG_SYS_MMC_ENV_DEV);
if (write_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr)) {
if (write_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, (u_char *)&env_new)) {
puts("failed\n");
return 1;
}