diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2021-03-24 16:53:37 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-03-29 18:57:28 +0000 |
| commit | 95b3dc3da9b10cb3445fdd789bfdfb0615f16ef4 (patch) | |
| tree | 749f7b336deab304b42540a4bde8c74a2967ac29 /src | |
| parent | f4e90e8a611a8ce29e3a990923ccdb99b919c21c (diff) | |
soc/amd/cezanne: Implement PROVIDES_ROM_SHARING
BUG=none
TEST=Build guybrush and verified with the PPR that the register and bits
are still the same
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I0619f84cf82cbb90ded9dfd58afa6acc9520fb8e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51780
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/cezanne/Kconfig | 9 | ||||
| -rw-r--r-- | src/soc/amd/cezanne/early_fch.c | 3 |
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(); |