From 0649cd0d4908d9b983a0361b8665938ef25701be Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 3 Aug 2017 12:21:49 -0600 Subject: Move environment files from common/ to env/ About a quarter of the files in common/ relate to the environment. It seems better to put these into their own subdirectory and remove the prefix. Signed-off-by: Simon Glass Reviewed-by: Tom Rini --- env/ubi.c | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 env/ubi.c (limited to 'env/ubi.c') diff --git a/env/ubi.c b/env/ubi.c new file mode 100644 index 0000000000..95b527ddca --- /dev/null +++ b/env/ubi.c @@ -0,0 +1,179 @@ +/* + * (c) Copyright 2012 by National Instruments, + * Joe Hershberger + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#undef crc32 + +char *env_name_spec = "UBI"; + +env_t *env_ptr; + +DECLARE_GLOBAL_DATA_PTR; + +int env_init(void) +{ + /* use default */ + gd->env_addr = (ulong)&default_environment[0]; + gd->env_valid = 1; + + return 0; +} + +#ifdef CONFIG_CMD_SAVEENV +#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT +int saveenv(void) +{ + ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1); + int ret; + + ret = env_export(env_new); + if (ret) + return ret; + + if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { + printf("\n** Cannot find mtd partition \"%s\"\n", + CONFIG_ENV_UBI_PART); + return 1; + } + + if (gd->env_valid == 1) { + puts("Writing to redundant UBI... "); + if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME_REDUND, + (void *)env_new, CONFIG_ENV_SIZE)) { + printf("\n** Unable to write env to %s:%s **\n", + CONFIG_ENV_UBI_PART, + CONFIG_ENV_UBI_VOLUME_REDUND); + return 1; + } + } else { + puts("Writing to UBI... "); + if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME, + (void *)env_new, CONFIG_ENV_SIZE)) { + printf("\n** Unable to write env to %s:%s **\n", + CONFIG_ENV_UBI_PART, + CONFIG_ENV_UBI_VOLUME); + return 1; + } + } + + puts("done\n"); + + gd->env_valid = gd->env_valid == 2 ? 1 : 2; + + return 0; +} +#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */ +int saveenv(void) +{ + ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1); + int ret; + + ret = env_export(env_new); + if (ret) + return ret; + + if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { + printf("\n** Cannot find mtd partition \"%s\"\n", + CONFIG_ENV_UBI_PART); + return 1; + } + + if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME, (void *)env_new, + CONFIG_ENV_SIZE)) { + printf("\n** Unable to write env to %s:%s **\n", + CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME); + return 1; + } + + puts("done\n"); + return 0; +} +#endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */ +#endif /* CONFIG_CMD_SAVEENV */ + +#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT +void env_relocate_spec(void) +{ + ALLOC_CACHE_ALIGN_BUFFER(char, env1_buf, CONFIG_ENV_SIZE); + ALLOC_CACHE_ALIGN_BUFFER(char, env2_buf, CONFIG_ENV_SIZE); + env_t *tmp_env1, *tmp_env2; + + /* + * In case we have restarted u-boot there is a chance that buffer + * contains old environment (from the previous boot). + * If UBI volume is zero size, ubi_volume_read() doesn't modify the + * buffer. + * We need to clear buffer manually here, so the invalid CRC will + * cause setting default environment as expected. + */ + memset(env1_buf, 0x0, CONFIG_ENV_SIZE); + memset(env2_buf, 0x0, CONFIG_ENV_SIZE); + + tmp_env1 = (env_t *)env1_buf; + tmp_env2 = (env_t *)env2_buf; + + if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { + printf("\n** Cannot find mtd partition \"%s\"\n", + CONFIG_ENV_UBI_PART); + set_default_env(NULL); + return; + } + + if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1, + CONFIG_ENV_SIZE)) { + printf("\n** Unable to read env from %s:%s **\n", + CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME); + } + + if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND, (void *)tmp_env2, + CONFIG_ENV_SIZE)) { + printf("\n** Unable to read redundant env from %s:%s **\n", + CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME_REDUND); + } + + env_import_redund((char *)tmp_env1, (char *)tmp_env2); +} +#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */ +void env_relocate_spec(void) +{ + ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE); + + /* + * In case we have restarted u-boot there is a chance that buffer + * contains old environment (from the previous boot). + * If UBI volume is zero size, ubi_volume_read() doesn't modify the + * buffer. + * We need to clear buffer manually here, so the invalid CRC will + * cause setting default environment as expected. + */ + memset(buf, 0x0, CONFIG_ENV_SIZE); + + if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { + printf("\n** Cannot find mtd partition \"%s\"\n", + CONFIG_ENV_UBI_PART); + set_default_env(NULL); + return; + } + + if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, buf, CONFIG_ENV_SIZE)) { + printf("\n** Unable to read env from %s:%s **\n", + CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME); + set_default_env(NULL); + return; + } + + env_import(buf, 1); +} +#endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */ -- cgit v1.2.3