[POWERPC] 4xx: PLB to PCI-X support

This adds base support code for the 4xx PCI-X bridge. It also provides
placeholders for the PCI and PCI-E version but they aren't supported
with this patch.

The bridges are configured based on device-tree properties.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.h b/arch/powerpc/sysdev/ppc4xx_pci.h
new file mode 100644
index 0000000..f9b4e6f
--- /dev/null
+++ b/arch/powerpc/sysdev/ppc4xx_pci.h
@@ -0,0 +1,106 @@
+/*
+ * PCI / PCI-X / PCI-Express support for 4xx parts
+ *
+ * Copyright 2007 Ben. Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
+ *
+ * Bits and pieces extracted from arch/ppc support by
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * Copyright 2002-2005 MontaVista Software Inc.
+ */
+#ifndef __PPC4XX_PCI_H__
+#define __PPC4XX_PCI_H__
+
+/*
+ * 4xx PCI-X bridge register definitions
+ */
+#define PCIX0_VENDID		0x000
+#define PCIX0_DEVID		0x002
+#define PCIX0_COMMAND		0x004
+#define PCIX0_STATUS		0x006
+#define PCIX0_REVID		0x008
+#define PCIX0_CLS		0x009
+#define PCIX0_CACHELS		0x00c
+#define PCIX0_LATTIM		0x00d
+#define PCIX0_HDTYPE		0x00e
+#define PCIX0_BIST		0x00f
+#define PCIX0_BAR0L		0x010
+#define PCIX0_BAR0H		0x014
+#define PCIX0_BAR1		0x018
+#define PCIX0_BAR2L		0x01c
+#define PCIX0_BAR2H		0x020
+#define PCIX0_BAR3		0x024
+#define PCIX0_CISPTR		0x028
+#define PCIX0_SBSYSVID		0x02c
+#define PCIX0_SBSYSID		0x02e
+#define PCIX0_EROMBA		0x030
+#define PCIX0_CAP		0x034
+#define PCIX0_RES0		0x035
+#define PCIX0_RES1		0x036
+#define PCIX0_RES2		0x038
+#define PCIX0_INTLN		0x03c
+#define PCIX0_INTPN		0x03d
+#define PCIX0_MINGNT		0x03e
+#define PCIX0_MAXLTNCY		0x03f
+#define PCIX0_BRDGOPT1		0x040
+#define PCIX0_BRDGOPT2		0x044
+#define PCIX0_ERREN		0x050
+#define PCIX0_ERRSTS		0x054
+#define PCIX0_PLBBESR		0x058
+#define PCIX0_PLBBEARL		0x05c
+#define PCIX0_PLBBEARH		0x060
+#define PCIX0_POM0LAL		0x068
+#define PCIX0_POM0LAH		0x06c
+#define PCIX0_POM0SA		0x070
+#define PCIX0_POM0PCIAL		0x074
+#define PCIX0_POM0PCIAH		0x078
+#define PCIX0_POM1LAL		0x07c
+#define PCIX0_POM1LAH		0x080
+#define PCIX0_POM1SA		0x084
+#define PCIX0_POM1PCIAL		0x088
+#define PCIX0_POM1PCIAH		0x08c
+#define PCIX0_POM2SA		0x090
+#define PCIX0_PIM0SAL		0x098
+#define PCIX0_PIM0SA		PCIX0_PIM0SAL
+#define PCIX0_PIM0LAL		0x09c
+#define PCIX0_PIM0LAH		0x0a0
+#define PCIX0_PIM1SA		0x0a4
+#define PCIX0_PIM1LAL		0x0a8
+#define PCIX0_PIM1LAH		0x0ac
+#define PCIX0_PIM2SAL		0x0b0
+#define PCIX0_PIM2SA		PCIX0_PIM2SAL
+#define PCIX0_PIM2LAL		0x0b4
+#define PCIX0_PIM2LAH		0x0b8
+#define PCIX0_OMCAPID		0x0c0
+#define PCIX0_OMNIPTR		0x0c1
+#define PCIX0_OMMC		0x0c2
+#define PCIX0_OMMA		0x0c4
+#define PCIX0_OMMUA		0x0c8
+#define PCIX0_OMMDATA		0x0cc
+#define PCIX0_OMMEOI		0x0ce
+#define PCIX0_PMCAPID		0x0d0
+#define PCIX0_PMNIPTR		0x0d1
+#define PCIX0_PMC		0x0d2
+#define PCIX0_PMCSR		0x0d4
+#define PCIX0_PMCSRBSE		0x0d6
+#define PCIX0_PMDATA		0x0d7
+#define PCIX0_PMSCRR		0x0d8
+#define PCIX0_CAPID		0x0dc
+#define PCIX0_NIPTR		0x0dd
+#define PCIX0_CMD		0x0de
+#define PCIX0_STS		0x0e0
+#define PCIX0_IDR		0x0e4
+#define PCIX0_CID		0x0e8
+#define PCIX0_RID		0x0ec
+#define PCIX0_PIM0SAH		0x0f8
+#define PCIX0_PIM2SAH		0x0fc
+#define PCIX0_MSGIL		0x100
+#define PCIX0_MSGIH		0x104
+#define PCIX0_MSGOL		0x108
+#define PCIX0_MSGOH		0x10c
+#define PCIX0_IM		0x1f8
+
+
+
+#endif /* __PPC4XX_PCI_H__ */