[PATCH v2] env: Remove all dependencies for SYS_REDUNDAND_ENVIRONMENT
michal.simek at xilinx.com
Mon Jan 18 09:11:26 CET 2021
CONFIG_SYS_REDUNDAND_ENVIRONMENT is changing in env_internal.h how u-boot
works with variables. struct environment_s has one byte flags property
which also affects ENV_SIZE macro.
I have reached the case where CONFIG_ENV_IS_NOWHERE is default setup
but custom scripts can be designed in a way that u-boot is asked to
import/export variables from/to file which can be in certain format.
That's why also for this configuration make sense to enable
CONFIG_SYS_REDUNDAND_ENVIRONMENT because it depends on environment file
The patch is removing dependency on this configuration to support selecting
environment file format without any specific dependency where variables are
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
Changes in v2:
- Extend Kconfig help message to cover binary environment handling
env/Kconfig | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/env/Kconfig b/env/Kconfig
index 67ce93061b7d..b473d7cfe1e9 100644
@@ -411,13 +411,14 @@ config ENV_IS_IN_UBI
bool "Enable redundant environment support"
- depends on ENV_IS_IN_EEPROM || ENV_IS_IN_FLASH || ENV_IS_IN_MMC || \
- ENV_IS_IN_NAND || ENV_IS_IN_SPI_FLASH || ENV_IS_IN_UBI
Normally, the environemt is stored in a single location. By
selecting this option, you can then define where 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.
+ Also this config changes the binary environment structure handling
+ which is used by env import/export commands which are independent of
+ storing variables to redundant location on a non volatile device.
string "Name of the block device for the environment"
More information about the U-Boot