diff options
Diffstat (limited to 'env/Kconfig')
| -rw-r--r-- | env/Kconfig | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/env/Kconfig b/env/Kconfig index 58a0666cd49..c30785de48b 100644 --- a/env/Kconfig +++ b/env/Kconfig @@ -231,14 +231,6 @@ config ENV_IS_IN_MMC These two #defines specify the offset and size of the environment area within the specified MMC device. - If offset is positive (the usual case), it is treated as relative to - the start of the MMC partition. If offset is negative, it is treated - as relative to the end of the MMC partition. This can be useful if - your board may be fitted with different MMC devices, which have - different sizes for the MMC partitions, and you always want the - environment placed at the very end of the partition, to leave the - maximum possible space before it, to store other data. - These two values are in units of bytes, but must be aligned to an MMC sector boundary. @@ -249,9 +241,6 @@ config ENV_IS_IN_MMC valid backup copy in case the other copy is corrupted, e.g. due to a power failure during a "saveenv" operation. - This value may also be positive or negative; this is handled in the - same way as CONFIG_ENV_OFFSET. - In case CONFIG_ENV_MMC_EMMC_HW_PARTITION is 1 (i.e. environment in eMMC boot partition) then setting CONFIG_ENV_OFFSET_REDUND to the same value as CONFIG_ENV_OFFSET makes use of the second eMMC boot partition for @@ -618,9 +607,18 @@ config ENV_OFFSET Offset from the start of the device (or partition). This offset may be interpreted differently depending on the chosen - ENV_IS_IN_* options. For example, for ENV_IS_IN_MMC=y, this offset may - be negative to indicate an offset backwards from the end of the - partition. See the relevant help messages for more details. + ENV_IS_IN_* options. See the relevant help messages for more details. + +config ENV_OFFSET_RELATIVE_END + bool "Offset is relative to the end of the partition" + depends on ENV_IS_IN_MMC + help + Treat the environment offset as relative to the end of the MMC + hardware partition. This can be useful if your board may be fitted + with different MMC devices, which have different sizes for the MMC + hardware partitions, and you always want the environment placed at the + very end of the partition, to leave the maximum possible space before + it, to store other data. config ENV_OFFSET_REDUND hex "Redundant environment offset" @@ -633,9 +631,19 @@ config ENV_OFFSET_REDUND environment location. This offset may be interpreted differently depending on the chosen - ENV_IS_IN_* options. For example, for ENV_IS_IN_MMC=y, this offset may - be negative to indicate an offset backwards from the end of the - partition. See the relevant help messages for more details. + ENV_IS_IN_* options. See the relevant help messages for more details. + +config ENV_OFFSET_REDUND_RELATIVE_END + bool "Offset is relative to the end of the partition" + depends on SYS_REDUNDAND_ENVIRONMENT + depends on ENV_IS_IN_MMC + help + Treat the redundant environment offset as relative to the end of the + MMC hardware partition. This can be useful if your board may be + fitted with different MMC devices, which have different sizes for the + MMC hardware partitions, and you always want the environment placed at + the very end of the partition, to leave the maximum possible space + before it, to store other data. config ENV_SIZE hex "Environment Size" |