diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2021-10-05 14:11:13 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-10-13 17:38:57 +0000 |
| commit | 5705b63a08d28ddf8c5a22600e19aa8dd8513614 (patch) | |
| tree | e5ffe8b2dd6259a55064abec5449acdade01113f /src/soc/amd/common/block/include/amdblocks | |
| parent | 2d17ea4d501c8e0f68813cda80dd6412b10ca0d8 (diff) | |
soc/amd/common: Add support to read and set SPI speeds from verstage
Currently all SPI speed configurations are done through EFS at build
time. There is a need to apply SPI speed overrides at run-time - eg.
based on board version after assessing the signal integrity. This
override configuration can be carried out by PSP verstage and bootblock.
Export the APIs to set and read SPI speeds from both PSP verstage and
bootblock.
BUG=None
TEST=Build and boot to OS in guybrush. Perform S5->S0, G3->S0, warm
reset and suspend/resume cycles for 50 iterations each.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I281531e506b56173471b918c746f58d1ad97162c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Diffstat (limited to 'src/soc/amd/common/block/include/amdblocks')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/psp_efs.h | 1 | ||||
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/spi.h | 1 |
2 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/psp_efs.h b/src/soc/amd/common/block/include/amdblocks/psp_efs.h index 77da70a06f..0da7ff79aa 100644 --- a/src/soc/amd/common/block/include/amdblocks/psp_efs.h +++ b/src/soc/amd/common/block/include/amdblocks/psp_efs.h @@ -7,7 +7,6 @@ #include <types.h> #define EFS_OFFSET (0xffffff - (0x80000 << CONFIG_AMD_FWM_POSITION_INDEX) + 0x20000 + 1) -#define EFS_ADDRESS (0xff000000 + EFS_OFFSET) #define EMBEDDED_FW_SIGNATURE 0x55aa55aa diff --git a/src/soc/amd/common/block/include/amdblocks/spi.h b/src/soc/amd/common/block/include/amdblocks/spi.h index c4ad44f8a4..eaea0f79c9 100644 --- a/src/soc/amd/common/block/include/amdblocks/spi.h +++ b/src/soc/amd/common/block/include/amdblocks/spi.h @@ -116,4 +116,5 @@ void spi_write8(uint8_t reg, uint8_t val); void spi_write16(uint8_t reg, uint16_t val); void spi_write32(uint8_t reg, uint32_t val); +void fch_spi_config_modes(void); #endif /* AMD_BLOCK_SPI_H */ |