diff options
Diffstat (limited to 'src/soc/intel/common/block/gspi/gspi.c')
| -rw-r--r-- | src/soc/intel/common/block/gspi/gspi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/gspi/gspi.c b/src/soc/intel/common/block/gspi/gspi.c index 599ab7e52c..836371372a 100644 --- a/src/soc/intel/common/block/gspi/gspi.c +++ b/src/soc/intel/common/block/gspi/gspi.c @@ -2,6 +2,7 @@ #include <device/mmio.h> #include <assert.h> +#include <bootstate.h> #include <console/console.h> #include <delay.h> #include <device/device.h> @@ -257,6 +258,17 @@ static uintptr_t gspi_get_bus_base_addr(unsigned int gspi_bus) return gspi_base[gspi_bus]; } +/* + * PCI resource allocation will likely change the base address of the mapped + * I/O registers. Clearing the cached value after the allocation step will + * cause it to be recomputed by gspi_calc_base_addr() on next access. + */ +static void gspi_clear_cached_base(void *unused) +{ + memset(gspi_base, 0, sizeof(gspi_base)); +} +BOOT_STATE_INIT_ENTRY(BS_DEV_RESOURCES, BS_ON_EXIT, gspi_clear_cached_base, NULL); + /* Parameters for GSPI controller operation. */ struct gspi_ctrlr_params { uintptr_t mmio_base; |