[coreboot-gerrit] Change in coreboot[master]: soc/intel/apollolake: Add support for SPI device

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/22363

Change subject: soc/intel/apollolake: Add support for SPI device
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soc/intel/apollolake: Add support for SPI device

Provide a translation table to convert SPI device structure
into SPI bus number and vice versa.

Change-Id: I4c8b23c7d6f289927cd7545f3875ee4352603afa
Signed-off-by: Subrata Banik 
---
M src/soc/intel/apollolake/include/soc/pci_devs.h
1 file changed, 20 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/22363/1

diff --git a/src/soc/intel/apollolake/include/soc/pci_devs.h b/src/soc/intel/apollolake/include/soc/pci_devs.h
index 6aa2520..3b36292 100644
--- a/src/soc/intel/apollolake/include/soc/pci_devs.h
+++ b/src/soc/intel/apollolake/include/soc/pci_devs.h
@@ -158,4 +158,24 @@
 #define  PCH_DEV_LPC		_PCH_DEV(LPC, 0)
 #define  PCH_DEV_SMBUS		_PCH_DEV(LPC, 1)

+static inline int spi_devfn_to_bus(unsigned int devfn)
+{
+	switch (devfn) {
+	case PCH_DEVFN_SPI0: return 0;
+	case PCH_DEVFN_SPI1: return 1;
+	case PCH_DEVFN_SPI2: return 2;
+	}
+	return -1;
+}
+
+static inline int spi_bus_to_devfn(unsigned int bus)
+{
+	switch (bus) {
+	case 0: return PCH_DEVFN_SPI0;
+	case 1: return PCH_DEVFN_SPI1;
+	case 2: return PCH_DEVFN_SPI2;
+	}
+	return -1;
+}
+
 #endif