[PATCH v2] env: Remove all dependencies for SYS_REDUNDAND_ENVIRONMENT

[Michal Simek]

po 18. 1. 2021 v 9:11 odesílatel Michal Simek <michal.simek at xilinx.com> napsal:
>
> 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
> format.
>
> The patch is removing dependency on this configuration to support selecting
> environment file format without any specific dependency where variables are
> stored.
>
> 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
> --- a/env/Kconfig
> +++ b/env/Kconfig
> @@ -411,13 +411,14 @@ config ENV_IS_IN_UBI
>
>  config SYS_REDUNDAND_ENVIRONMENT
>         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
>         help
>           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.
>
>  config ENV_FAT_INTERFACE
>         string "Name of the block device for the environment"
> --
> 2.30.0
>

Applied.
M

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs