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| author | Wolfgang Denk <wd@denx.de> | 2008-12-16 17:16:34 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-12-16 17:16:34 +0100 |
| commit | 7f202217356f19e519e6ec57a29de9af73067037 (patch) | |
| tree | 1c3fe822cc37bf4df09ac9ece94c8a71ab9a25d0 /common/env_sf.c | |
| parent | 6cdadcb3f1b6eac4a1c4256acaa1438413f95351 (diff) | |
| parent | 584eedab66d0828f2d571a24b10526c4e65f547b (diff) | |
| download | u-boot-imx-7f202217356f19e519e6ec57a29de9af73067037.zip u-boot-imx-7f202217356f19e519e6ec57a29de9af73067037.tar.gz u-boot-imx-7f202217356f19e519e6ec57a29de9af73067037.tar.bz2 | |
Merge branch 'master' of ssh://gemini/home/wd/git/u-boot/master
Diffstat (limited to 'common/env_sf.c')
| -rw-r--r-- | common/env_sf.c | 41 |
1 files changed, 36 insertions, 5 deletions
diff --git a/common/env_sf.c b/common/env_sf.c index 1bbf93f..2f52e25 100644 --- a/common/env_sf.c +++ b/common/env_sf.c @@ -27,6 +27,7 @@ */ #include <common.h> #include <environment.h> +#include <malloc.h> #include <spi_flash.h> #ifndef CONFIG_ENV_SPI_BUS @@ -60,13 +61,30 @@ uchar env_get_char_spec(int index) int saveenv(void) { + u32 saved_size, saved_offset; + char *saved_buffer = NULL; u32 sector = 1; + int ret; if (!env_flash) { puts("Environment SPI flash not initialized\n"); return 1; } + /* Is the sector larger than the env (i.e. embedded) */ + if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) { + saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE; + saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE; + saved_buffer = malloc(saved_size); + if (!saved_buffer) { + ret = 1; + goto done; + } + ret = spi_flash_read(env_flash, saved_offset, saved_size, saved_buffer); + if (ret) + goto done; + } + if (CONFIG_ENV_SIZE > CONFIG_ENV_SECT_SIZE) { sector = CONFIG_ENV_SIZE / CONFIG_ENV_SECT_SIZE; if (CONFIG_ENV_SIZE % CONFIG_ENV_SECT_SIZE) @@ -74,15 +92,28 @@ int saveenv(void) } puts("Erasing SPI flash..."); - if (spi_flash_erase(env_flash, CONFIG_ENV_OFFSET, sector * CONFIG_ENV_SECT_SIZE)) - return 1; + ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET, sector * CONFIG_ENV_SECT_SIZE); + if (ret) + goto done; puts("Writing to SPI flash..."); - if (spi_flash_write(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, env_ptr)) - return 1; + ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, env_ptr); + if (ret) + goto done; + + if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) { + ret = spi_flash_write(env_flash, saved_offset, saved_size, saved_buffer); + if (ret) + goto done; + } + ret = 0; puts("done\n"); - return 0; + + done: + if (saved_buffer) + free(saved_buffer); + return ret; } void env_relocate_spec(void) |