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| author | Terry Lv <r65388@freescale.com> | 2010-06-02 14:32:43 +0800 |
|---|---|---|
| committer | Terry Lv <r65388@freescale.com> | 2010-06-02 14:49:54 +0800 |
| commit | 7db87846f84d568d396fac2f6a9a1d9802562f6d (patch) | |
| tree | 127c48b98cc090e35cd0e957f563b499a90f6ea9 /common/env_mmc.c | |
| parent | 5ceff9165b3d259f82e5ea181fee9bd6be25bf28 (diff) | |
| download | u-boot-imx-7db87846f84d568d396fac2f6a9a1d9802562f6d.zip u-boot-imx-7db87846f84d568d396fac2f6a9a1d9802562f6d.tar.gz u-boot-imx-7db87846f84d568d396fac2f6a9a1d9802562f6d.tar.bz2 | |
ENGR00124100: Add support for saving env data to active mmc device
Add support for saving env data to active mmc device.
Signed-off-by: Terry Lv <r65388@freescale.com>
Diffstat (limited to 'common/env_mmc.c')
| -rw-r--r-- | common/env_mmc.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/common/env_mmc.c b/common/env_mmc.c index 88db336..9ee9062 100644 --- a/common/env_mmc.c +++ b/common/env_mmc.c @@ -42,6 +42,8 @@ env_t *env_ptr = (env_t *)(&environment[0]); env_t *env_ptr; #endif /* ENV_IS_EMBEDDED */ +static int mmc_env_devno; + /* local functions */ #if !defined(ENV_IS_EMBEDDED) static void use_default(void); @@ -60,6 +62,12 @@ int env_init(void) gd->env_addr = (ulong)&default_environment[0]; gd->env_valid = 1; +#ifdef CONFIG_DYNAMIC_MMC_DEVNO + mmc_env_devno = get_mmc_env_devno(); +#else + mmc_env_devno = CONFIG_SYS_MMC_ENV_DEV; +#endif + return 0; } @@ -88,7 +96,7 @@ inline int write_env(struct mmc *mmc, unsigned long size, blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len; blk_cnt = ALIGN(size, mmc->write_bl_len) / mmc->write_bl_len; - n = mmc->block_dev.block_write(CONFIG_SYS_MMC_ENV_DEV, blk_start, + n = mmc->block_dev.block_write(mmc_env_devno, blk_start, blk_cnt, (u_char *)buffer); return (n == blk_cnt) ? 0 : -1; @@ -96,12 +104,12 @@ inline int write_env(struct mmc *mmc, unsigned long size, int saveenv(void) { - struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); + struct mmc *mmc = find_mmc_device(mmc_env_devno); if (init_mmc_for_env(mmc)) return 1; - printf("Writing to MMC(%d)... ", CONFIG_SYS_MMC_ENV_DEV); + printf("Writing to MMC(%d)... ", mmc_env_devno); if (write_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr)) { puts("failed\n"); return 1; @@ -120,7 +128,7 @@ inline int read_env(struct mmc *mmc, unsigned long size, blk_start = ALIGN(offset, mmc->read_bl_len) / mmc->read_bl_len; blk_cnt = ALIGN(size, mmc->read_bl_len) / mmc->read_bl_len; - n = mmc->block_dev.block_read(CONFIG_SYS_MMC_ENV_DEV, blk_start, + n = mmc->block_dev.block_read(mmc_env_devno, blk_start, blk_cnt, (uchar *)buffer); return (n == blk_cnt) ? 0 : -1; @@ -129,7 +137,7 @@ inline int read_env(struct mmc *mmc, unsigned long size, void env_relocate_spec(void) { #if !defined(ENV_IS_EMBEDDED) - struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); + struct mmc *mmc = find_mmc_device(mmc_env_devno); if (init_mmc_for_env(mmc)) return; |