Commit graph

6 commits

Author SHA1 Message Date
Mike Frysinger
5b3375ac8c env_sf: support embedded environments
If both CONFIG_ENV_SECT_SIZE and CONFIG_ENV_SIZE are defined, and the sect
size is larger than the env size, then it means the env is embedded in a
block.  So we have to save/restore the part of the sector which is not the
environment.  Previously, saving the environment in SPI flash in this
setup would probably brick the board as the rest of the sector tends to
contain actual U-Boot data/code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-12-16 00:47:10 +01:00
Jean-Christophe PLAGNIOL-VILLARD
0e8d158664 rename CFG_ENV macros to CONFIG_ENV
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-10 22:48:06 +02:00
Jean-Christophe PLAGNIOL-VILLARD
2556ef7811 env_sf: Move conditional compilation to Makefile
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-10 22:48:00 +02:00
Jean-Christophe PLAGNIOL-VILLARD
0b5099a841 rename CFG_ENV_IS_IN_SPI_FLASH in CONFIG_ENV_IS_IN_SPI_FLASH
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-10 22:48:00 +02:00
TsiChung Liew
07efc9e321 Change CFG_ENV_SIZE to CFG_ENV_SECT_SIZE for SPI sector erase
The CFG_ENV_SIZE is not suitable used for SPI flash erase
sector size if CFG_ENV_SIZE is less than CFG_ENV_SECT_SIZE.
Add condition check if CFG_ENV_SIZE is larger than
CFG_ENV_SECT_SIZE, calculate the right number of sectors for
erasing.

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
2008-08-14 12:31:56 -06:00
Haavard Skinnemoen
8c66497e06 Add support for environment in SPI flash
This is pretty incomplete...it doesn't handle reading the environment
before relocation, it doesn't support redundant environment, and it
doesn't support embedded environment. But apart from that, it does
seem to work.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-06-03 20:33:11 +02:00