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| author | Jason Liu <r64343@freescale.com> | 2013-06-20 16:51:46 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2013-06-20 18:04:10 +0800 |
| commit | 264ad1a3bb3051aebed6c7c4c408a3629ad89210 (patch) | |
| tree | ce54ca7d9a96ada0f7b64bb43c5be8ba9d56400b | |
| parent | 04d86e0c0a32f855d4fb524844d5f9ed59e78543 (diff) | |
| download | u-boot-imx-264ad1a3bb3051aebed6c7c4c408a3629ad89210.zip u-boot-imx-264ad1a3bb3051aebed6c7c4c408a3629ad89210.tar.gz u-boot-imx-264ad1a3bb3051aebed6c7c4c408a3629ad89210.tar.bz2 | |
ENGR00268061-1 env_mmc: add the dynamtic mmc dev support
This patch add the support to load/save env to the slot which
was used as the boot media by dynamic detection.
Signed-off-by: Jason Liu <r64343@freescale.com>
| -rw-r--r-- | common/env_mmc.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/common/env_mmc.c b/common/env_mmc.c index 02bd5ae..7cf8635 100644 --- a/common/env_mmc.c +++ b/common/env_mmc.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2008-2011 Freescale Semiconductor, Inc. + * (C) Copyright 2008-2013 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -52,6 +52,11 @@ __weak int mmc_get_env_addr(struct mmc *mmc, u32 *env_addr) return 0; } +__weak int mmc_get_env_devno(void) +{ + return CONFIG_SYS_MMC_ENV_DEV; +} + int env_init(void) { /* use default */ @@ -75,7 +80,9 @@ static int init_mmc_for_env(struct mmc *mmc) #ifdef CONFIG_SYS_MMC_ENV_PART if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) { - if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, + int mmc_env_devno = mmc_get_env_devno(); + + if (mmc_switch_part(mmc_env_devno, CONFIG_SYS_MMC_ENV_PART)) { puts("MMC partition switch failed\n"); return -1; @@ -89,8 +96,10 @@ static int init_mmc_for_env(struct mmc *mmc) static void fini_mmc_for_env(struct mmc *mmc) { #ifdef CONFIG_SYS_MMC_ENV_PART + int mmc_env_devno = mmc_get_env_devno(); + if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) - mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, + mmc_switch_part(mmc_env_devno, mmc->part_num); #endif } @@ -100,11 +109,12 @@ static inline int write_env(struct mmc *mmc, unsigned long size, unsigned long offset, const void *buffer) { uint blk_start, blk_cnt, n; + int mmc_env_devno = mmc_get_env_devno(); 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; @@ -113,9 +123,10 @@ static inline int write_env(struct mmc *mmc, unsigned long size, int saveenv(void) { ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1); + int mmc_env_devno = mmc_get_env_devno(); ssize_t len; char *res; - struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); + struct mmc *mmc = find_mmc_device(mmc_env_devno); u32 offset; int ret; @@ -136,7 +147,7 @@ int saveenv(void) } env_new->crc = crc32(0, &env_new->data[0], ENV_SIZE); - 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, offset, (u_char *)env_new)) { puts("failed\n"); ret = 1; @@ -156,11 +167,12 @@ static inline int read_env(struct mmc *mmc, unsigned long size, unsigned long offset, const void *buffer) { uint blk_start, blk_cnt, n; + int mmc_env_devno = mmc_get_env_devno(); 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; @@ -170,7 +182,8 @@ void env_relocate_spec(void) { #if !defined(ENV_IS_EMBEDDED) ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE); - struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); + int mmc_env_devno = mmc_get_env_devno(); + struct mmc *mmc = find_mmc_device(mmc_env_devno); u32 offset; int ret; |