Actually route cPCI interrupts. Update inaccurate comments.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/pci/fixup-atlas.c

+/*
+ * Copyright (C) 2003, 2004  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2005  MIPS Technologies, Inc.  All rights reserved.
+ *	Author:	 Maciej W. Rozycki <macro@mips.com>
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
 #include <linux/config.h>
 #include <linux/init.h>
 #include <linux/pci.h>
+
 #include <asm/mips-boards/atlasint.h>
 
-#define INTD		ATLASINT_INTD
-#define INTC		ATLASINT_INTC
-#define INTB		ATLASINT_INTB
+#define PCIA		ATLASINT_PCIA
+#define PCIB		ATLASINT_PCIB
+#define PCIC		ATLASINT_PCIC
+#define PCID		ATLASINT_PCID
 #define INTA		ATLASINT_INTA
-#define SCSI		ATLASINT_SCSI
+#define INTB		ATLASINT_INTB
 #define ETH		ATLASINT_ETH
+#define INTC		ATLASINT_INTC
+#define SCSI		ATLASINT_SCSI
+#define INTD		ATLASINT_INTD
 
 static char irq_tab[][5] __initdata = {
 	/*      INTA    INTB    INTC    INTD */
@@ -27,13 +50,13 @@ static char irq_tab[][5] __initdata = {
 	{0,	0,	0,	0,	0 },	/* 12: Unused */
 	{0,	0,	0,	0,	0 },	/* 13: Unused */
 	{0,	0,	0,	0,	0 },	/* 14: Unused */
-	{0,	0,	0,	0,	0 },	/* 15: Unused */
+	{0,	PCIA,	PCIB,	PCIC,	PCID },	/* 15: cPCI (behind 21150) */
 	{0,	SCSI,	0,	0,	0 },	/* 16: SYM53C810A SCSI */
 	{0,	0,	0,	0,	0 },	/* 17: Core */
-	{0,	INTA,	INTB,	INTC,	INTD },	/* 18: PCI Slot 1 */
-	{0,	ETH,	0,	0,	0 },	/* 19: SAA9730 Ethernet */
-	{0,	0,	0,	0,	0 },	/* 20: PCI Slot 3 */
-	{0,	0,	0,	0,	0 }	/* 21: PCI Slot 4 */
+	{0,	INTA,	INTB,	INTC,	INTD },	/* 18: PCI Slot */
+	{0,	ETH,	0,	0,	0 },	/* 19: SAA9730 Eth. et al. */
+	{0,	0,	0,	0,	0 },	/* 20: Unused */
+	{0,	0,	0,	0,	0 }	/* 21: Unused */
 };
 
 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)