X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fenv_mmc.c;h=45d95a1e23ed95cf6563a26dda50cc71e9ad1b1d;hb=0e689a61929bdf15423e868bc242c1268bda7db9;hp=f47bd777256f0bdee6252d69eaa940010620f1d0;hpb=c9aab0f9dd23fddcebf5984dc19e62b514e759a7;p=u-boot diff --git a/common/env_mmc.c b/common/env_mmc.c index f47bd77725..45d95a1e23 100644 --- a/common/env_mmc.c +++ b/common/env_mmc.c @@ -10,8 +10,10 @@ #include #include +#include #include #include +#include #include #include #include @@ -35,15 +37,37 @@ DECLARE_GLOBAL_DATA_PTR; #define CONFIG_ENV_OFFSET 0 #endif -__weak int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr) +#if CONFIG_IS_ENABLED(OF_CONTROL) +static inline s64 mmc_offset(int copy) { - s64 offset; + const char *propname = "u-boot,mmc-env-offset"; + s64 defvalue = CONFIG_ENV_OFFSET; - offset = CONFIG_ENV_OFFSET; -#ifdef CONFIG_ENV_OFFSET_REDUND +#if defined(CONFIG_ENV_OFFSET_REDUND) + if (copy) { + propname = "u-boot,mmc-env-offset-redundant"; + defvalue = CONFIG_ENV_OFFSET_REDUND; + } +#endif + + return fdtdec_get_config_int(gd->fdt_blob, propname, defvalue); +} +#else +static inline s64 mmc_offset(int copy) +{ + s64 offset = CONFIG_ENV_OFFSET; + +#if defined(CONFIG_ENV_OFFSET_REDUND) if (copy) offset = CONFIG_ENV_OFFSET_REDUND; #endif + return offset; +} +#endif + +__weak int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr) +{ + s64 offset = mmc_offset(copy); if (offset < 0) offset += mmc->capacity; @@ -53,6 +77,11 @@ __weak int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr) return 0; } +__weak int mmc_get_env_dev(void) +{ + return CONFIG_SYS_MMC_ENV_DEV; +} + int env_init(void) { /* use default */ @@ -62,48 +91,51 @@ int env_init(void) return 0; } -static int init_mmc_for_env(struct mmc *mmc) -{ #ifdef CONFIG_SYS_MMC_ENV_PART - int dev = CONFIG_SYS_MMC_ENV_DEV; +__weak uint mmc_get_env_part(struct mmc *mmc) +{ + return CONFIG_SYS_MMC_ENV_PART; +} -#ifdef CONFIG_SPL_BUILD - dev = 0; -#endif -#endif +static unsigned char env_mmc_orig_hwpart; - if (!mmc) { - puts("No MMC card found\n"); - return -1; - } +static int mmc_set_env_part(struct mmc *mmc) +{ + uint part = mmc_get_env_part(mmc); + int dev = mmc_get_env_dev(); + int ret = 0; - if (mmc_init(mmc)) { - puts("MMC init failed\n"); - return -1; - } + env_mmc_orig_hwpart = mmc_get_blk_desc(mmc)->hwpart; + ret = blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part); + if (ret) + puts("MMC partition switch failed\n"); -#ifdef CONFIG_SYS_MMC_ENV_PART - if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) { - if (mmc_switch_part(dev, CONFIG_SYS_MMC_ENV_PART)) { - puts("MMC partition switch failed\n"); - return -1; - } - } + return ret; +} +#else +static inline int mmc_set_env_part(struct mmc *mmc) {return 0; }; #endif - return 0; +static const char *init_mmc_for_env(struct mmc *mmc) +{ + if (!mmc) + return "!No MMC card found"; + + if (mmc_init(mmc)) + return "!MMC init failed"; + + if (mmc_set_env_part(mmc)) + return "!MMC partition switch failed"; + + return NULL; } static void fini_mmc_for_env(struct mmc *mmc) { #ifdef CONFIG_SYS_MMC_ENV_PART - int dev = CONFIG_SYS_MMC_ENV_DEV; + int dev = mmc_get_env_dev(); -#ifdef CONFIG_SPL_BUILD - dev = 0; -#endif - if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) - mmc_switch_part(dev, mmc->part_num); + blk_select_hwpart_devnum(IF_TYPE_MMC, dev, env_mmc_orig_hwpart); #endif } @@ -112,12 +144,12 @@ static inline int write_env(struct mmc *mmc, unsigned long size, unsigned long offset, const void *buffer) { uint blk_start, blk_cnt, n; + struct blk_desc *desc = mmc_get_blk_desc(mmc); 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, - blk_cnt, (u_char *)buffer); + n = blk_dwrite(desc, blk_start, blk_cnt, (u_char *)buffer); return (n == blk_cnt) ? 0 : -1; } @@ -129,24 +161,21 @@ static unsigned char env_flags; int saveenv(void) { ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1); - ssize_t len; - char *res; - struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); + int dev = mmc_get_env_dev(); + struct mmc *mmc = find_mmc_device(dev); u32 offset; int ret, copy = 0; + const char *errmsg; - if (init_mmc_for_env(mmc)) + errmsg = init_mmc_for_env(mmc); + if (errmsg) { + printf("%s\n", errmsg); return 1; - - res = (char *)&env_new->data; - len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL); - if (len < 0) { - error("Cannot export environment: errno = %d\n", errno); - ret = 1; - goto fini; } - env_new->crc = crc32(0, &env_new->data[0], ENV_SIZE); + ret = env_export(env_new); + if (ret) + goto fini; #ifdef CONFIG_ENV_OFFSET_REDUND env_new->flags = ++env_flags; /* increase the serial */ @@ -160,8 +189,7 @@ int saveenv(void) goto fini; } - printf("Writing to %sMMC(%d)... ", copy ? "redundant " : "", - CONFIG_SYS_MMC_ENV_DEV); + printf("Writing to %sMMC(%d)... ", copy ? "redundant " : "", dev); if (write_env(mmc, CONFIG_ENV_SIZE, offset, (u_char *)env_new)) { puts("failed\n"); ret = 1; @@ -185,16 +213,12 @@ static inline int read_env(struct mmc *mmc, unsigned long size, unsigned long offset, const void *buffer) { uint blk_start, blk_cnt, n; - int dev = CONFIG_SYS_MMC_ENV_DEV; - -#ifdef CONFIG_SPL_BUILD - dev = 0; -#endif + struct blk_desc *desc = mmc_get_blk_desc(mmc); 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(dev, blk_start, blk_cnt, (uchar *)buffer); + n = blk_dread(desc, blk_start, blk_cnt, (uchar *)buffer); return (n == blk_cnt) ? 0 : -1; } @@ -209,18 +233,16 @@ void env_relocate_spec(void) int crc1_ok = 0, crc2_ok = 0; env_t *ep; int ret; - int dev = CONFIG_SYS_MMC_ENV_DEV; + int dev = mmc_get_env_dev(); + const char *errmsg = NULL; ALLOC_CACHE_ALIGN_BUFFER(env_t, tmp_env1, 1); ALLOC_CACHE_ALIGN_BUFFER(env_t, tmp_env2, 1); -#ifdef CONFIG_SPL_BUILD - dev = 0; -#endif - mmc = find_mmc_device(dev); - if (init_mmc_for_env(mmc)) { + errmsg = init_mmc_for_env(mmc); + if (errmsg) { ret = 1; goto err; } @@ -246,6 +268,7 @@ void env_relocate_spec(void) (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc); if (!crc1_ok && !crc2_ok) { + errmsg = "!bad CRC"; ret = 1; goto fini; } else if (crc1_ok && !crc2_ok) { @@ -281,8 +304,7 @@ fini: fini_mmc_for_env(mmc); err: if (ret) - set_default_env(NULL); - + set_default_env(errmsg); #endif } #else /* ! CONFIG_ENV_OFFSET_REDUND */ @@ -293,15 +315,13 @@ void env_relocate_spec(void) struct mmc *mmc; u32 offset; int ret; - int dev = CONFIG_SYS_MMC_ENV_DEV; - -#ifdef CONFIG_SPL_BUILD - dev = 0; -#endif + int dev = mmc_get_env_dev(); + const char *errmsg; mmc = find_mmc_device(dev); - if (init_mmc_for_env(mmc)) { + errmsg = init_mmc_for_env(mmc); + if (errmsg) { ret = 1; goto err; } @@ -312,6 +332,7 @@ void env_relocate_spec(void) } if (read_env(mmc, CONFIG_ENV_SIZE, offset, buf)) { + errmsg = "!read failed"; ret = 1; goto fini; } @@ -323,7 +344,7 @@ fini: fini_mmc_for_env(mmc); err: if (ret) - set_default_env(NULL); + set_default_env(errmsg); #endif } #endif /* CONFIG_ENV_OFFSET_REDUND */