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-rw-r--r--src/soc/amd/cezanne/Kconfig9
-rw-r--r--src/soc/amd/cezanne/early_fch.c3
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 5e0e1a6d6d..9a108c95fb 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -30,6 +30,7 @@ config SOC_SPECIFIC_OPTIONS
select PARALLEL_MP
select PARALLEL_MP_AP_WORK
select PLATFORM_USES_FSP2_0
+ select PROVIDES_ROM_SHARING
select RESET_VECTOR_IN_RAM
select RTC
select SOC_AMD_COMMON
@@ -195,6 +196,14 @@ config DRIVERS_I2C_DESIGNWARE_CLOCK_MHZ
int
default 150
+config DISABLE_SPI_FLASH_ROM_SHARING
+ def_bool n
+ help
+ Instruct the chipset to not honor the EGPIO67_SPI_ROM_REQ pin
+ which indicates a board level ROM transaction request. This
+ removes arbitration with board and assumes the chipset controls
+ the SPI flash bus entirely.
+
menu "PSP Configuration Options"
config AMD_FWM_POSITION_INDEX
diff --git a/src/soc/amd/cezanne/early_fch.c b/src/soc/amd/cezanne/early_fch.c
index b00f49dd97..4e7d84d389 100644
--- a/src/soc/amd/cezanne/early_fch.c
+++ b/src/soc/amd/cezanne/early_fch.c
@@ -60,6 +60,9 @@ void fch_early_init(void)
fch_print_pmxc0_status();
i2c_soc_early_init();
+ if (CONFIG(DISABLE_SPI_FLASH_ROM_SHARING))
+ lpc_disable_spi_rom_sharing();
+
if (CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI)) {
espi_setup();
espi_configure_decodes();