u-boot-brain/tools/env/fw_env.config
Remy Bohmer 9eeaa8e66c Add support for dataflash to U-boot environment settings tool.
* The sector size for SPI-dataflash (like AT45 flashes) are not always
  a power-of-2. So, the sector calculations are rewritten such that it
  works for either power-of-2 as any size sectors.
* Make the flash sector size optional in case it is the same value as
  the environment size.

Signed-off-by: Remy Bohmer <linux@bohmer.net>
2011-04-12 22:58:34 +02:00

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# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# Notice, that the "Number of sectors" is ignored on NOR and SPI-dataflash.
# Futhermore, if the Flash sector size is ommitted, this value is assumed to
# be the same as the Environment size, which is valid for NOR and SPI-dataflash
# NOR example
# MTD device name Device offset Env. size Flash sector size Number of sectors
/dev/mtd1 0x0000 0x4000 0x4000
/dev/mtd2 0x0000 0x4000 0x4000
# MTD SPI-dataflash example
# MTD device name Device offset Env. size Flash sector size Number of sectors
#/dev/mtd5 0x4200 0x4200
#/dev/mtd6 0x4200 0x4200
# NAND example
#/dev/mtd0 0x4000 0x4000 0x20000 2