2 files changed, 11 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/include/soc/iomap.h b/src/soc/intel/skylake/include/soc/iomap.h
index a6f7287f3a..e2662cc7c0 100644
--- a/src/soc/intel/skylake/include/soc/iomap.h
+++ b/src/soc/intel/skylake/include/soc/iomap.h
@@ -53,6 +53,7 @@
 #define PCH_PWRM_BASE_SIZE	0x10000
 
 #define SPI_BASE_ADDRESS	0xfe010000
+#define EARLY_GSPI_BASE_ADDRESS 0xfe011000
 
 #define GPIO_BASE_SIZE		0x10000
 
diff --git a/src/soc/intel/skylake/include/soc/pci_devs.h b/src/soc/intel/skylake/include/soc/pci_devs.h
index 469d7e9992..13114f1f95 100644
--- a/src/soc/intel/skylake/include/soc/pci_devs.h
+++ b/src/soc/intel/skylake/include/soc/pci_devs.h
@@ -186,4 +186,14 @@ static inline int spi_devfn_to_bus(unsigned int devfn)
 	return -1;
 }
 
+static inline int spi_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;
+	}
+	return -1;
+}
+
 #endif