Add the possibility to access Environment stored in SPI NOR Flash before relocation. This is used in DM/DTS rework for the aristainetos boards. There mutliple DTS are packed into a FIT image and through a variable in the Environment the correct DTS will be selected. For this we need very early access to the Environment. Also may this is good for selecting the console baudrate again through Environment which I think currently does not work for any board based on DM/DTS and with Environment in SPI NOR flash.
Add this to aristainetos board, as aristainetos DM board updates are now in mainline. travis build: https://travis-ci.org/github/hsdenx/u-boot-test/builds/733559949 Changes in v4: - rebased to current master 5dcf7cc590 Changes in v3: - env_sf_init_early() always return 0 now. If we do not return 0 in this function, env_set_inited() never get called, which has the consequence that env_load/save/erase never work, because they check if the init bit is set. - add comment from Simon Glass - add missing function comments - use if(IS_ENABLED...) - drop extra brackets - let env_sf_init() decide, which function to call add comment that it is necessary to return env_sf_init() with 0. - new in v3 as aristainetos board DM changes are in mainline now Changes in v2: - patch "env: split env_import_redund into 2 functions" is new in version 2. Idea is to not duplicate too much code as Simon suggested. Heiko Schocher (3): env: split env_import_redund() into 2 functions env: Access Environment in SPI flashes before relocation imx6: enable early spi environment access on aristainetos boards configs/aristainetos2_defconfig | 1 + configs/aristainetos2b_defconfig | 1 + configs/aristainetos2bcsl_defconfig | 1 + configs/aristainetos2c_defconfig | 1 + env/Kconfig | 8 +++ env/common.c | 42 +++++++++--- env/sf.c | 100 +++++++++++++++++++++++++++- include/env.h | 18 +++++ 8 files changed, 159 insertions(+), 13 deletions(-) -- 2.25.4
