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mb/google/rambi: Drop ChromeOS support 

There is an ongoing effort to deprecate VBOOT_VBNV_CMOS [1] and replace
with VBOOT_VBNV_FLASH. However, the rambi's CAR is too small for early
flash access in romstage:

/usr/local/google/home/yupingso/projects/coreboot/util/crossgcc/xgcc/bin/i386-elf-ld.bfd:
Cache as RAM area is too full
/usr/local/google/home/yupingso/projects/coreboot/util/crossgcc/xgcc/bin/i386-elf-ld.bfd:
section .car.mrc_var VMA [00000000fe008000,00000000fe00ffff] overlaps
section .car.data VMA [00000000fe000000,00000000fe008787]
make: *** [src/arch/x86/Makefile.inc:194:
coreboot-builds/GOOGLE_RAMBI/cbfs/fallback/romstage.debug] Error 1

More precisely, DCACHE_RAM_SIZE is 0x8000, and the current .car.data
size is 0x76c0. If BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES is unselected,
then the _bss region will increase by 0x10c8 bytes (for global variables
such as `elog_mirror_buf` and `sfg`), so that .car.data will exceed
0x8000.

Since rambi has reached its AUE (2021-09-01), disable
MAINBOARD_HAS_CHROMEOS and VBOOT configs.

[1] https://issuetracker.google.com/issues/235293589

BUG=b:235293589
TEST=./util/abuild/abuild -t GOOGLE_RAMBI -a
TEST=./util/abuild/abuild -x -t GOOGLE_RAMBI -a

Change-Id: Id56795dd0653784b4d7141142ebef0b19a46ddc3
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71545
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
This commit is contained in:
Yu-Ping Wu 2022-12-26 17:11:36 +08:00 committed by Martin L Roth
parent 5f012d0778
commit 64b341e722
1 changed files with 0 additions and 6 deletions
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6
src/mainboard/google/rambi/Kconfig
View File

@ -8,7 +8,6 @@ config BOARD_GOOGLE_BASEBOARD_RAMBI
select HAVE_ACPI_TABLES select HAVE_ACPI_TABLES
select HAVE_OPTION_TABLE select HAVE_OPTION_TABLE
select HAVE_SPD_IN_CBFS select HAVE_SPD_IN_CBFS
select MAINBOARD_HAS_CHROMEOS
select MEMORY_MAPPED_TPM select MEMORY_MAPPED_TPM
select MAINBOARD_HAS_TPM1 select MAINBOARD_HAS_TPM1
select SOC_INTEL_BAYTRAIL select SOC_INTEL_BAYTRAIL
@ -92,11 +91,6 @@ config BOARD_GOOGLE_WINKY
if BOARD_GOOGLE_BASEBOARD_RAMBI if BOARD_GOOGLE_BASEBOARD_RAMBI
config VBOOT
select EC_GOOGLE_CHROMEEC_SWITCHES
select VBOOT_LID_SWITCH
select VBOOT_VBNV_CMOS
config MAINBOARD_DIR config MAINBOARD_DIR
default "google/rambi" default "google/rambi"