diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/espi.h | 6 | ||||
| -rw-r--r-- | src/soc/amd/common/block/lpc/espi_util.c | 18 |
2 files changed, 22 insertions, 2 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/espi.h b/src/soc/amd/common/block/include/amdblocks/espi.h index 53cc5f9f3f..69267f8cc3 100644 --- a/src/soc/amd/common/block/include/amdblocks/espi.h +++ b/src/soc/amd/common/block/include/amdblocks/espi.h @@ -55,4 +55,10 @@ int espi_open_mmio_window(uint32_t base, size_t size); */ void espi_configure_decodes(void); +/* + * In cases where eSPI BAR is statically provided by SoC, use that BAR instead of reading + * SPIBASE. This is required for cases where verstage runs on PSP. + */ +void espi_update_static_bar(uintptr_t bar); + #endif /* __AMDBLOCKS_ESPI_H__ */ diff --git a/src/soc/amd/common/block/lpc/espi_util.c b/src/soc/amd/common/block/lpc/espi_util.c index 2585c46138..54a017ea0c 100644 --- a/src/soc/amd/common/block/lpc/espi_util.c +++ b/src/soc/amd/common/block/lpc/espi_util.c @@ -11,10 +11,24 @@ #include <stdint.h> #include <types.h> +static uintptr_t espi_bar; + +void espi_update_static_bar(uintptr_t bar) +{ + espi_bar = bar; +} + static uintptr_t espi_get_bar(void) { - uintptr_t espi_spi_base = lpc_get_spibase(); - return espi_spi_base + ESPI_OFFSET_FROM_BAR; + uintptr_t espi_spi_base; + + if (espi_bar) + return espi_bar; + + espi_spi_base = lpc_get_spibase(); + espi_update_static_bar(espi_spi_base + ESPI_OFFSET_FROM_BAR); + + return espi_bar; } static uint32_t espi_read32(int reg) |