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| author | Markus Klotzbuecher <mk@denx.de> | 2006-03-20 18:02:44 +0100 |
|---|---|---|
| committer | Markus Klotzbücher <mk@pollux.denx.de> | 2006-03-20 18:02:44 +0100 |
| commit | e443c944cf4050daffb46d4788446d6c2df8ac6c (patch) | |
| tree | 0eef771495be3fe6ad5013c4044bfcebe584c0f2 /README | |
| parent | 5536b2b5a932410a58e65ead9215af3836c8e9e0 (diff) | |
| download | u-boot-e443c944cf4050daffb46d4788446d6c2df8ac6c.zip u-boot-e443c944cf4050daffb46d4788446d6c2df8ac6c.tar.gz u-boot-e443c944cf4050daffb46d4788446d6c2df8ac6c.tar.bz2 | |
Support for redundant environment in NAND Flash.
Diffstat (limited to 'README')
| -rw-r--r-- | README | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -1946,6 +1946,17 @@ to save the current settings. These two #defines specify the offset and size of the environment area within the first NAND device. + - CFG_ENV_OFFSET_REDUND + + This setting describes a second storage area of CFG_ENV_SIZE + size used to hold a redundant copy of the environment data, + so that there is a valid backup copy in case there is a + power failure during a "saveenv" operation. + + Note: CFG_ENV_OFFSET and CFG_ENV_OFFSET_REDUND must be aligned + to a block boundary, and CFG_ENV_SIZE must be a multiple of + the NAND devices block size. + - CFG_SPI_INIT_OFFSET Defines offset to the initial SPI buffer area in DPRAM. The |