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| author | Austin Shirley <austin@deadband.dev> | 2026-06-12 15:20:07 -0600 |
|---|---|---|
| committer | Austin Shirley <ausshir@gmail.com> | 2026-06-15 11:57:23 -0600 |
| commit | 37a66c811bc7c6c9a75375e5aaa195c31c746bf5 (patch) | |
| tree | 96f3b484aa4ed76b85a3aa5a116082fa38d676aa /docs | |
| parent | 24c877cb8c7fd69091bfd03c19e68e4f759f36e0 (diff) | |
| download | arm-trusted-firmware-37a66c811bc7c6c9a75375e5aaa195c31c746bf5.tar.gz arm-trusted-firmware-37a66c811bc7c6c9a75375e5aaa195c31c746bf5.zip | |
feat(st): add optional recovery FIP for NAND boot
Without PSA_FWU, the NAND boot path walks backup blocks of the active
FIP. Add an optional build flag STM32MP_NAND_FIP_RECOVERY_OFFSET that
falls back to a recovery FIP once the active FIP and its backup blocks
are exhausted.
Before Ia18ff2d the backup walk overran the partition end and could
load a FIP placed there. Make this behaviour an explicit opt-in.
Tested on STM32MP135.
Change-Id: Id308e39998cbb863c8c0ccfead49a5af831c3761
Signed-off-by: Austin Shirley <austin@deadband.dev>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/plat/st/stm32mpus.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/plat/st/stm32mpus.rst b/docs/plat/st/stm32mpus.rst index 7b4711278..7bea16a65 100644 --- a/docs/plat/st/stm32mpus.rst +++ b/docs/plat/st/stm32mpus.rst @@ -54,6 +54,13 @@ Other configuration flags: | Default: stm32mp157c-ev1.dtb - | ``DWL_BUFFER_BASE``: the 'serial boot' load address of FIP, | default location (end of the first 128MB) is used when absent +- | ``STM32MP_FORCE_MTD_START_OFFSET``: to force the FIP offset on MTD devices. + | Requires PSA_FWU_SUPPORT=0. + | Default: 0x80000 on NOR, 0x200000 on NAND +- | ``STM32MP_NAND_FIP_RECOVERY_OFFSET``: NAND offset of a recovery FIP, tried when + | the active FIP and its backup blocks are exhausted. Requires PSA_FWU_SUPPORT=0. + | Use a partition the same size as the active FIP. + | Default: 0 (disabled) - | ``STM32MP_RECONFIGURE_CONSOLE``: to re-configure crash console (especially after BL2). | Default: 0 (disabled) - | ``STM32MP_UART_BAUDRATE``: to select UART baud rate. |