diff options
Diffstat (limited to 'src/soc/intel/cannonlake/spi.c')
| -rw-r--r-- | src/soc/intel/cannonlake/spi.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/src/soc/intel/cannonlake/spi.c b/src/soc/intel/cannonlake/spi.c index 1d65dee31a..a86f760ec8 100644 --- a/src/soc/intel/cannonlake/spi.c +++ b/src/soc/intel/cannonlake/spi.c @@ -22,10 +22,41 @@ #include <device/spi.h> #include <intelblocks/fast_spi.h> #include <intelblocks/gspi.h> +#include <intelblocks/spi.h> #include <soc/ramstage.h> #include <soc/pci_devs.h> #include <spi-generic.h> +int spi_soc_devfn_to_bus(unsigned int devfn) +{ + switch (devfn) { + case PCH_DEVFN_SPI: + return 0; + case PCH_DEVFN_GSPI0: + return 1; + case PCH_DEVFN_GSPI1: + return 2; + case PCH_DEVFN_GSPI2: + return 3; + } + return -1; +} + +int spi_soc_bus_to_devfn(unsigned int bus) +{ + switch (bus) { + case 0: + return PCH_DEVFN_SPI; + case 1: + return PCH_DEVFN_GSPI0; + case 2: + return PCH_DEVFN_GSPI1; + case 3: + return PCH_DEVFN_GSPI2; + } + return -1; +} + const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = { { .ctrlr = &fast_spi_flash_ctrlr, .bus_start = 0, .bus_end = 0 }, #if !ENV_SMM @@ -40,7 +71,7 @@ const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map); static int spi_dev_to_bus(struct device *dev) { - return spi_devfn_to_bus(dev->path.pci.devfn); + return spi_soc_devfn_to_bus(dev->path.pci.devfn); } static struct spi_bus_operations spi_bus_ops = { |