On Tue, Apr 11, 2023 at 8:55 PM Ken Sloat ken.s@variscite.com wrote:
From 734bfa4e4556976fe85c741f13ae94161cae97e6 Mon Sep 17 00:00:00 2001 From: Ken Sloat ken.s@variscite.com Date: Tue, 11 Apr 2023 16:05:31 -0400
Currently, the imx93_evk is configured with CONFIG_ENV_IS_IN_MMC and the chosen environment offset in the config is 0x400000. Unless the user programs the associated fuses, this offset is the default secondary boot image offset used by the i.MX 93 ROM bootloader. With certain combinations of environmental variables, the CRC and beginning of the environment can potentially falsely appear as a valid boot image container header. If the expected "sw_version" offset within this mistaken boot image container is greater than the primary's, the ROM bootloader can skip booting of the primary image altogether and attempt to boot with the content of the environment data. This will then hang the system.
To fix this, move the environment from 0x400000 to 0x700000 reserving up to 3 MB at 0x400000 for any actual secondary user image container.
Signed-off-by: Ken Sloat ken.s@variscite.com
Reviewed-by: Fabio Estevam festevam@denx.de