diff options
| author | Zheng Bao <fishbaozi@gmail.com> | 2024-08-29 15:49:17 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-09-09 12:57:50 +0000 |
| commit | b23382c54b3f33133c12e2ce8fe826f306761b1d (patch) | |
| tree | fe6ee31d6f4a23cb32c48148fa63d1f5e6d36da9 /src/soc | |
| parent | 2c16092a21da83b89ea61b459eecc387966caf8c (diff) | |
soc/amd/cezanne: Add an option to enable A/B recovery scheme
Extracted from NDA spec #56995:
"The A/B recovery scheme formally separates the SPI flash space into
different partitions; a primary, “A” and secondary, “B”, which hold
the same set of system firmware. Under this scheme, the partitions A
and B can hold identical contents initially, but each partition can be
updated individually.
Normally the system boots from partition A, but if the A partition is
found to be corrupted, the system will switch to partition B and
boot. The OEM BIOS can then choose to continue the boot from partition
B, or repair partition A using contents from partition B."
The Cezanne platform supports both A/B recovery and no recovery
method. It needs this flag passed to amdfwtool to enable the A/B
recovery layout.
Change-Id: Id1c8028faee9c544628d65fd77be2a378ed7eab6
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84195
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/amd/cezanne/Kconfig | 6 | ||||
| -rw-r--r-- | src/soc/amd/cezanne/Makefile.mk | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig index abeaeceb79..7b97ce731a 100644 --- a/src/soc/amd/cezanne/Kconfig +++ b/src/soc/amd/cezanne/Kconfig @@ -408,6 +408,12 @@ config PSP_VERSTAGE_SIGNING_TOKEN help Add psp_verstage signature token to the build & PSP Directory Table +config PSP_RECOVERY_AB + bool "Use A/B Recovery scheme" + default n + help + Enable the PSP A/B Recovery mechanism + endmenu config VBOOT diff --git a/src/soc/amd/cezanne/Makefile.mk b/src/soc/amd/cezanne/Makefile.mk index adbf3a6d8e..2747622a47 100644 --- a/src/soc/amd/cezanne/Makefile.mk +++ b/src/soc/amd/cezanne/Makefile.mk @@ -182,6 +182,8 @@ OPT_PSP_SOFTFUSE=$(call add_opt_prefix, $(PSP_SOFTFUSE), --soft-fuse) OPT_WHITELIST_FILE=$(call add_opt_prefix, $(PSP_WHITELIST_FILE), --whitelist) OPT_SPL_TABLE_FILE=$(call add_opt_prefix, $(SPL_TABLE_FILE), --spl-table) +OPT_RECOVERY_AB=$(call add_opt_prefix, $(CONFIG_PSP_RECOVERY_AB), --recovery-ab) + AMDFW_COMMON_ARGS=$(OPT_PSP_APCB_FILES) \ $(OPT_PSP_NVRAM_BASE) \ $(OPT_PSP_NVRAM_SIZE) \ @@ -204,6 +206,7 @@ AMDFW_COMMON_ARGS=$(OPT_PSP_APCB_FILES) \ $(OPT_EFS_SPI_READ_MODE) \ $(OPT_EFS_SPI_SPEED) \ $(OPT_EFS_SPI_MICRON_FLAG) \ + $(OPT_RECOVERY_AB) \ --config $(CONFIG_AMDFW_CONFIG_FILE) \ --flashsize $(CONFIG_ROM_SIZE) |