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This patch updates the Rex flash layout to optimize WP_RO to 4MB.
The idea is to create more space inside FW_RW_A/B to accommodate
multiple blobs to boot google/rex with different Intel MTL SoC stepping.
Changes for chromeos.fmd:
SI_BIOS:
RW_SECTION_A/B: Reduce to 7MB.
RW_LEGACY: Reduce to 1MB.
RW_MISC: Increased to 1MB.
RW_UNUSED: 3MB (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.
Change-Id: Iccf83b7bb66d0d5503e0ff9e9a819051296c6724
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74229
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch updates the Rex flash layout to allow CSE Lite FW
update and accommodate multiple ESx SoC stepping blobs.
For default chromeos.fmd
SI_BIOS:
RW_SECTION_A/B: Increased by ~1.9MB.
RW_LEGACY: Reduce to 1MB.
RW_MISC: Reduce to 152KB.
- Drop RW_SPD_CACHE
- Optimize other sections
Additionally, moved RW_LEGACY under extended BIOS region.
For chromeos-debug-fsp.fmd
SI_BIOS:
RW_SECTION_A/B: Increased by ~1.2MB.
RW_LEGACY: Dropped
RW_MISC: Reduce to 152KB.
- Drop RW_SPD_CACHE
- Optimize other sections
BUG=b:262868089
TEST=Able to enable CSE update on google/rex and have free space
to add one more PUNIT FW for support different SoC stepping.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I6146b36c4ce2c0141277eeb906d6ad1f503f3c78
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66288
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
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Add TPM device for Rex.
Device details:
I2C Controller/Bus = 4
I2C Slave Address = 0x50
GPE = GPE0_DW1_03/GPP_E03
BUG=b:224325352
TEST=Verified in emulator that there is no regression
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: Ifa3a5b503a203e3900049f27a54025156e22a285
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66014
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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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>
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