i2c mux support


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1809 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/include/device/device.h b/src/include/device/device.h
index 167a518..253ec97 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -33,6 +33,7 @@
 	void (*init)(device_t dev);
 	unsigned int (*scan_bus)(device_t bus, unsigned int max);
 	void (*enable)(device_t dev);
+	void (*set_link)(device_t dev, unsigned int link);
 	const struct pci_operations *ops_pci;
 	const struct smbus_bus_operations *ops_smbus_bus;
 	const struct pci_bus_operations *ops_pci_bus;
@@ -50,7 +51,7 @@
 };
 
 #define MAX_RESOURCES 12
-#define MAX_LINKS     4
+#define MAX_LINKS    8 
 /*
  * There is one device structure for each slot-number/function-number
  * combination: