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env: Add support for UBI environment

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UBI is a better place for the environment on NAND devices because it
handles wear-leveling and bad blocks.

Gluebi is needed in Linux to access the env as an MTD partition.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2013-04-08 10:32:51 +00:00
committed by Tom Rini
parent a7eb1d66c7
commit 2b74433f36
6 changed files with 144 additions and 2 deletions
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15
include/environment.h
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@@ -96,6 +96,21 @@ extern unsigned long nand_env_oob_offset;
# endif
#endif /* CONFIG_ENV_IS_IN_NAND */
#if defined(CONFIG_ENV_IS_IN_UBI)
# ifndef CONFIG_ENV_UBI_PART
# error "Need to define CONFIG_ENV_UBI_PART when using CONFIG_ENV_IS_IN_UBI"
# endif
# ifndef CONFIG_ENV_UBI_VOLUME
# error "Need to define CONFIG_ENV_UBI_VOLUME when using CONFIG_ENV_IS_IN_UBI"
# endif
# ifndef CONFIG_ENV_SIZE
# error "Need to define CONFIG_ENV_SIZE when using CONFIG_ENV_IS_IN_UBI"
# endif
# ifndef CONFIG_CMD_UBI
# error "Need to define CONFIG_CMD_UBI when using CONFIG_ENV_IS_IN_UBI"
# endif
#endif /* CONFIG_ENV_IS_IN_UBI */
/* Embedded env is only supported for some flash types */
#ifdef CONFIG_ENV_IS_EMBEDDED
# if !defined(CONFIG_ENV_IS_IN_FLASH) && \