AGESA boards: Use devicetree for PCI bus enumeration

Previously MP table contained PCI_INT entries for PCI bus behind bridge
0:14.4 even if said PCI bridge function was disabled.
Remove these as invalid, indeterminate bus number could cause conflicts.

PCI_INT entries with bus_sb800[2], bus_hudson[2] and bus_yangtze[2]
were invalid as there is no PCI bridge hardware on device 0:14.0.
Remove these as invalid, indeterminate bus number could cause conflicts.

Change-Id: Ie6a3807f64c8651cf9f732612e1aa7f376a3134f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6358
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/mainboard/amd/inagua/mptable.c b/src/mainboard/amd/inagua/mptable.c
index cfe1837..4a57d3c 100644
--- a/src/mainboard/amd/inagua/mptable.c
+++ b/src/mainboard/amd/inagua/mptable.c
@@ -27,11 +27,8 @@
 #include <cpu/amd/amdfam14.h>
 #include <SBPLATFORM.h>
 
-extern u8 bus_sb800[6];
-
 extern u32 apicid_sb800;
 
-
 u8 intr_data[] = {
 	[0x00] = 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17, /* INTA# - INTH# */
 	[0x08] = 0x00,0x00,0x00,0x00,0x1F,0x1F,0x1F,0x1F, /* Misc-nil,0,1,2, INT from Serial irq */
@@ -108,27 +105,27 @@
 	/* on board NIC & Slot PCIE.  */
 
 	/* PCI slots */
-	/* PCI_SLOT 0. */
-	PCI_INT(bus_sb800[1], 0x5, 0x0, 0x14);
-	PCI_INT(bus_sb800[1], 0x5, 0x1, 0x15);
-	PCI_INT(bus_sb800[1], 0x5, 0x2, 0x16);
-	PCI_INT(bus_sb800[1], 0x5, 0x3, 0x17);
+	device_t dev = dev_find_slot(0, PCI_DEVFN(0x14, 4));
+	if (dev && dev->enabled) {
+		u8 bus_pci = dev->link_list->secondary;
+		/* PCI_SLOT 0. */
+		PCI_INT(bus_pci, 0x5, 0x0, 0x14);
+		PCI_INT(bus_pci, 0x5, 0x1, 0x15);
+		PCI_INT(bus_pci, 0x5, 0x2, 0x16);
+		PCI_INT(bus_pci, 0x5, 0x3, 0x17);
 
-	/* PCI_SLOT 1. */
-	PCI_INT(bus_sb800[1], 0x6, 0x0, 0x15);
-	PCI_INT(bus_sb800[1], 0x6, 0x1, 0x16);
-	PCI_INT(bus_sb800[1], 0x6, 0x2, 0x17);
-	PCI_INT(bus_sb800[1], 0x6, 0x3, 0x14);
+		/* PCI_SLOT 1. */
+		PCI_INT(bus_pci, 0x6, 0x0, 0x15);
+		PCI_INT(bus_pci, 0x6, 0x1, 0x16);
+		PCI_INT(bus_pci, 0x6, 0x2, 0x17);
+		PCI_INT(bus_pci, 0x6, 0x3, 0x14);
 
-	/* PCI_SLOT 2. */
-	PCI_INT(bus_sb800[1], 0x7, 0x0, 0x16);
-	PCI_INT(bus_sb800[1], 0x7, 0x1, 0x17);
-	PCI_INT(bus_sb800[1], 0x7, 0x2, 0x14);
-	PCI_INT(bus_sb800[1], 0x7, 0x3, 0x15);
-
-	PCI_INT(bus_sb800[2], 0x0, 0x0, 0x12);
-	PCI_INT(bus_sb800[2], 0x0, 0x1, 0x13);
-	PCI_INT(bus_sb800[2], 0x0, 0x2, 0x14);
+		/* PCI_SLOT 2. */
+		PCI_INT(bus_pci, 0x7, 0x0, 0x16);
+		PCI_INT(bus_pci, 0x7, 0x1, 0x17);
+		PCI_INT(bus_pci, 0x7, 0x2, 0x14);
+		PCI_INT(bus_pci, 0x7, 0x3, 0x15);
+	}
 
 	/* PCIe PortA */
 	PCI_INT(0x0, 0x15, 0x0, 0x10);