AMD K8 fam10: Refactor HT link connection test

Change-Id: I1e935a6b848a59f7f2e58779bceea599032de9e3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8562
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>

src/include/device/device.h

@@ -90,6 +90,7 @@ struct bus {
 
 	unsigned	reset_needed : 1;
 	unsigned	disable_relaxed_ordering : 1;
+	unsigned	ht_link_up : 1;
 };
 
 /*

src/include/device/hypertransport.h

@@ -3,6 +3,13 @@
 
 #include <device/hypertransport_def.h>
 
+/* TODO: Check HT specs for better names for these. */
+#define LinkConnected		(1 << 0)
+#define InitComplete		(1 << 1)
+#define NonCoherent			(1 << 2)
+#define ConnectionPending	(1 << 4)
+bool ht_is_non_coherent_link(struct bus *link);
+
 unsigned int hypertransport_scan_chain(struct bus *bus,
 	unsigned min_devfn, unsigned max_devfn, unsigned *ht_unit_base, unsigned offset_unitid);
 void ht_scan_bridge(struct device *dev);