diff options
| -rw-r--r-- | src/soc/intel/common/block/fast_spi/fast_spi.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/fast_spi/fast_spi.c b/src/soc/intel/common/block/fast_spi/fast_spi.c index 3dc74408dc..c07b565d8c 100644 --- a/src/soc/intel/common/block/fast_spi/fast_spi.c +++ b/src/soc/intel/common/block/fast_spi/fast_spi.c @@ -22,6 +22,9 @@ #include <spi_flash.h> #include <spi-generic.h> +#define FLASH_MMIO_SIZE (16 * MiB) +#define FLASH_BASE_ADDR ((0xffffffff - FLASH_MMIO_SIZE) + 1) + /* * Get the FAST_SPIBAR. */ @@ -514,8 +517,18 @@ static void fast_spi_fill_ssdt(const struct device *dev) acpigen_pop_len(); /* Scope */ } + +static void fast_spi_read_resources(struct device *dev) +{ + /* Read standard PCI resources. */ + pci_dev_read_resources(dev); + + /* Add SPI flash MMIO window as a reserved resource. */ + mmio_resource(dev, 0, FLASH_BASE_ADDR / KiB, FLASH_MMIO_SIZE / KiB); +} + static struct device_operations fast_spi_dev_ops = { - .read_resources = pci_dev_read_resources, + .read_resources = fast_spi_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .acpi_fill_ssdt = fast_spi_fill_ssdt, |