diff options
| author | Subrata Banik <subratabanik@google.com> | 2023-04-06 19:51:08 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-04-11 11:38:54 +0000 |
| commit | 589f6b9c049434967ffe668d084ca1bd1a3946fa (patch) | |
| tree | 9b54eb872d98fff7beea7006a823020b51f2efe0 /src/mainboard | |
| parent | c484c1a9f6929f2720ec300b134ffb1c817d8683 (diff) | |
mb/google/rex: Update Debug Flash Layout to fit WP_RO within 4MB
This patch updates the Rex debug flash layout to optimize WP_RO to 4MB.
Changes for chromeos.fmd:
SI_BIOS:
RW_SECTION_A/B: Increase to 7.5MB.
RW_LEGACY: Introduce with 1MB.
RW_MISC: Increased to 1MB.
RW_UNUSED: 2MB (reserved)
WP_RO: Reduce to 4MB
Additionally, ensure RW_SECTION_B region starts at 16MB boundary in the
SPI Flash.
BUG=b:277143384
TEST=Able to build and boot google/rex with FSP release and debug image.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I4ab69eb24937d58c8bc5d3c0a6e5cb70b843a1ae
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74253
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/rex/chromeos-debug-fsp.fmd | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/src/mainboard/google/rex/chromeos-debug-fsp.fmd b/src/mainboard/google/rex/chromeos-debug-fsp.fmd index bd250f5fab..c3c13365a9 100644 --- a/src/mainboard/google/rex/chromeos-debug-fsp.fmd +++ b/src/mainboard/google/rex/chromeos-debug-fsp.fmd @@ -4,37 +4,45 @@ FLASH 32M { SI_ME } SI_BIOS 23M { - RW_SECTION_A 7604K { + RW_SECTION_A 7680K { VBLOCK_A 8K FW_MAIN_A(CBFS) RW_FWID_A 64 ME_RW_A(CBFS) 4400K } - RW_MISC 152K { - RW_ELOG(PRESERVE) 4K - RW_SHARED 4K { - SHARED_DATA 4K - } - RW_VPD(PRESERVE) 8K - RW_NVRAM(PRESERVE) 8K - UNIFIED_MRC_CACHE(PRESERVE) 128K { - RECOVERY_MRC_CACHE 64K - RW_MRC_CACHE 64K - } - } # This section starts at the 16M boundary in SPI flash. # MTL does not support a region crossing this boundary, # because the SPI flash is memory-mapped into two non- # contiguous windows. - RW_SECTION_B 7604K { + RW_SECTION_B 7680K { VBLOCK_B 8K FW_MAIN_B(CBFS) RW_FWID_B 64 ME_RW_B(CBFS) 4400K } + RW_MISC 1M { + UNIFIED_MRC_CACHE(PRESERVE) 128K { + RECOVERY_MRC_CACHE 64K + RW_MRC_CACHE 64K + } + RW_ELOG(PRESERVE) 16K + RW_SHARED 16K { + SHARED_DATA 8K + VBLOCK_DEV 8K + } + # The RW_SPD_CACHE region is only used for rex variants that use DDRx memory. + # It is placed in the common `chromeos.fmd` file because it is only 4K and there + # is free space in the RW_MISC region that cannot be easily reclaimed because + # the RW_SECTION_B must start on the 16M boundary. + RW_SPD_CACHE(PRESERVE) 4K + RW_VPD(PRESERVE) 8K + RW_NVRAM(PRESERVE) 24K + } + RW_LEGACY(CBFS) 1M + RW_UNUSED 2M # Make WP_RO region align with SPI vendor # memory protected range specification. - WP_RO 8M { + WP_RO 4M { RO_VPD(PRESERVE) 16K RO_GSCVD 8K RO_SECTION { |