diff options
Diffstat (limited to 'src/soc/amd/common/block/lpc')
-rw-r--r-- | src/soc/amd/common/block/lpc/espi_util.c | 18 |
1 files changed, 16 insertions, 2 deletions
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) |