diff options
| author | Eric Lai <eric_lai@quanta.corp-partner.google.com> | 2022-05-23 15:32:00 +0800 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-07-01 07:22:58 +0000 |
| commit | 03b392355c84a5c868a96470e1b96e3d422fb85a (patch) | |
| tree | b86c00916d63ae2b33cb1256c3ae883b769cb730 /src/mainboard/google | |
| parent | ed74337c3a1f19656becd23cc46a914f6ec3de67 (diff) | |
mb/google/rex: Add flashmap descriptor
Add 32MB flashmap descriptor as below:
Descriptor Region -> 0 - 0x3fff (~16KB)
CSE Partition -> 0x4000 - 0x8fffff (~9MB)
BIOS Region -> 0x900000 - 0x1ffffff (23MB)
BUG=b:224325352
TEST=util/abuild/abuild -p none -t google/rex -a -c max
Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ia5ced770bb02c11a9ab39837e66562d2ee22b6e7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64590
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/rex/chromeos.fmd | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/chromeos.fmd b/src/mainboard/google/rex/chromeos.fmd new file mode 100644 index 0000000000..334cddaf7b --- /dev/null +++ b/src/mainboard/google/rex/chromeos.fmd @@ -0,0 +1,54 @@ +FLASH 32M { + SI_ALL 9M { + SI_DESC 16K + SI_ME + } + SI_BIOS 23M { + RW_SECTION_A 6M { + VBLOCK_A 64K + FW_MAIN_A(CBFS) + RW_FWID_A 64 + ME_RW_A(CBFS) 3008K + } + RW_LEGACY(CBFS) 2M + 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 + } + # 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 6M { + VBLOCK_B 64K + FW_MAIN_B(CBFS) + RW_FWID_B 64 + ME_RW_B(CBFS) 3008K + } + # Make WP_RO region align with SPI vendor + # memory protected range specification. + WP_RO 8M { + RO_VPD(PRESERVE) 16K + RO_SECTION { + FMAP 2K + RO_FRID 64 + GBB@4K 12K + COREBOOT(CBFS) + } + } + } +} |