diff options
Diffstat (limited to 'env')
| -rw-r--r-- | env/Kconfig | 4 | ||||
| -rw-r--r-- | env/env.c | 12 | ||||
| -rw-r--r-- | env/fat.c | 32 | ||||
| -rw-r--r-- | env/mmc.c | 26 |
4 files changed, 58 insertions, 16 deletions
diff --git a/env/Kconfig b/env/Kconfig index 38e7fadbb9..5784136674 100644 --- a/env/Kconfig +++ b/env/Kconfig @@ -434,6 +434,10 @@ config ENV_FAT_DEVICE_AND_PART If none, first valid partition in device D. If no partition table then means device D. + If ENV_FAT_INTERFACE is set to "mmc" then device 'D' can be omitted, + leaving the string starting with a colon, and the boot device will + be used. + config ENV_FAT_FILE string "Name of the FAT file to use for the environment" depends on ENV_IS_IN_FAT @@ -103,7 +103,7 @@ static void env_set_inited(enum env_location location) * using the above enum value as the bit index. We need to * make sure that we're not overflowing it. */ - BUILD_BUG_ON(ARRAY_SIZE(env_locations) > BITS_PER_LONG); + BUILD_BUG_ON(ENVL_COUNT > BITS_PER_LONG); gd->env_has_init |= BIT(location); } @@ -240,13 +240,17 @@ int env_save(void) if (drv) { int ret; - if (!drv->save) + printf("Saving Environment to %s... ", drv->name); + if (!drv->save) { + printf("not possible\n"); return -ENODEV; + } - if (!env_has_inited(drv->location)) + if (!env_has_inited(drv->location)) { + printf("not initialized\n"); return -ENODEV; + } - printf("Saving Environment to %s... ", drv->name); ret = drv->save(); if (ret) printf("Failed (%d)\n", ret); @@ -29,6 +29,34 @@ # define LOADENV #endif +__weak int mmc_get_env_dev(void) +{ +#ifdef CONFIG_SYS_MMC_ENV_DEV + return CONFIG_SYS_MMC_ENV_DEV; +#else + return 0; +#endif +} + +static char *env_fat_device_and_part(void) +{ +#ifdef CONFIG_MMC + static char *part_str; + + if (!part_str) { + part_str = CONFIG_ENV_FAT_DEVICE_AND_PART; + if (!strcmp(CONFIG_ENV_FAT_INTERFACE, "mmc") && part_str[0] == ':') { + part_str = "0" CONFIG_ENV_FAT_DEVICE_AND_PART; + part_str[0] += mmc_get_env_dev(); + } + } + + return part_str; +#else + return CONFIG_ENV_FAT_DEVICE_AND_PART; +#endif +} + static int env_fat_save(void) { env_t __aligned(ARCH_DMA_MINALIGN) env_new; @@ -43,7 +71,7 @@ static int env_fat_save(void) return err; part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE, - CONFIG_ENV_FAT_DEVICE_AND_PART, + env_fat_device_and_part(), &dev_desc, &info, 1); if (part < 0) return 1; @@ -89,7 +117,7 @@ static int env_fat_load(void) #endif part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE, - CONFIG_ENV_FAT_DEVICE_AND_PART, + env_fat_device_and_part(), &dev_desc, &info, 1); if (part < 0) goto err_env_relocate; @@ -24,14 +24,25 @@ DECLARE_GLOBAL_DATA_PTR; +#if !defined(CONFIG_SYS_MMC_ENV_DEV) +#define CONFIG_SYS_MMC_ENV_DEV 0 +#endif + +__weak int mmc_get_env_dev(void) +{ + return CONFIG_SYS_MMC_ENV_DEV; +} + #if CONFIG_IS_ENABLED(OF_CONTROL) -static inline int mmc_offset_try_partition(const char *str, s64 *val) +static inline int mmc_offset_try_partition(const char *str, int copy, s64 *val) { struct disk_partition info; struct blk_desc *desc; int len, i, ret; + char dev_str[4]; - ret = blk_get_device_by_str("mmc", STR(CONFIG_SYS_MMC_ENV_DEV), &desc); + snprintf(dev_str, sizeof(dev_str), "%d", mmc_get_env_dev()); + ret = blk_get_device_by_str("mmc", dev_str, &desc); if (ret < 0) return (ret); @@ -45,10 +56,10 @@ static inline int mmc_offset_try_partition(const char *str, s64 *val) } /* round up to info.blksz */ - len = (CONFIG_ENV_SIZE + info.blksz - 1) & ~(info.blksz - 1); + len = DIV_ROUND_UP(CONFIG_ENV_SIZE, info.blksz); /* use the top of the partion for the environment */ - *val = (info.start + info.size - 1) - len / info.blksz; + *val = (info.start + info.size - (1 + copy) * len) * info.blksz; return 0; } @@ -73,7 +84,7 @@ static inline s64 mmc_offset(int copy) str = fdtdec_get_config_string(gd->fdt_blob, dt_prop.partition); if (str) { /* try to place the environment at end of the partition */ - err = mmc_offset_try_partition(str, &val); + err = mmc_offset_try_partition(str, copy, &val); if (!err) return val; } @@ -114,11 +125,6 @@ __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; -} - #ifdef CONFIG_SYS_MMC_ENV_PART __weak uint mmc_get_env_part(struct mmc *mmc) { |