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mb/amd/majolica/Kconfig: add EFS SPI settings 

This keeps the default of EFS_SPI_SPEED at 66.66Mhz for the non-EM100
case, but switches the EFS_SPI_READ_MODE setting from Dual IO (1-1-2) to
Quad IO (1-1-4) for the non-EM100 case. This patch adds a special config
for the EM100 emulator case that has limited SPI frequency support.

Tested on Majolica by Martin.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8996c2bf606ccd21686092beac8d96b22c0b7869
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56815
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Felix Held 2021-08-04 22:45:40 +02:00
parent 2d45322639
commit 5bdc7c8850
1 changed files with 8 additions and 0 deletions
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8
src/mainboard/amd/majolica/Kconfig
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@ -53,4 +53,12 @@ config CHROMEOS
# Use default libpayload config # Use default libpayload config
select LP_DEFCONFIG_OVERRIDE if PAYLOAD_DEPTHCHARGE select LP_DEFCONFIG_OVERRIDE if PAYLOAD_DEPTHCHARGE
config EFS_SPI_READ_MODE
default 0 if EM100 # Normal read mode
default 3 # Quad IO (1-1-4)
config EFS_SPI_SPEED
default 3 if EM100 # 16.66 MHz
default 0 # 66.66 MHz
endif # BOARD_AMD_MAJOLICA endif # BOARD_AMD_MAJOLICA