On 19/08/2020 16:24, Pali Rohár wrote:
Due to different partition layouts in different U-Boot versions, DTS for Espressobin in Linux does not contain any definition of MTD partitions. See commit https://git.kernel.org/stable/c/00954566464a4 for more details.
This patch via ft_board_setup() hook fills current partition layout used by U-Boot, so booted kernel would see correct MTD partitions layout.
U-Boot env partition is calculated from CONFIG_ENV_OFFSET option.
First partition contains secure firmware, ARM trusted firmware and U-Boot with checksums. So it is not possible to replace just one image (e.g. U-Boot) without updating other parts where is stored checksum of U-Boot. Therefore there is no extra partition defined for U-Boot and first partition is called just 'firmware'.
Signed-off-by: Pali Rohár pali@kernel.org
Tested-by: Andre Heider a.heider@gmail.com