diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 818f7c6..f8f7f28 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -1,7 +1,7 @@
 /*
  * MPC83xx/85xx/86xx PCI/PCIE support routing.
  *
- * Copyright 2007-2010 Freescale Semiconductor, Inc.
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
  * Copyright 2008-2009 MontaVista Software, Inc.
  *
  * Initial author: Xianghua Xiao <x.xiao@freescale.com>
@@ -99,7 +99,7 @@
 				  struct resource *rsrc)
 {
 	struct ccsr_pci __iomem *pci;
-	int i, j, n, mem_log, win_idx = 2;
+	int i, j, n, mem_log, win_idx = 3, start_idx = 1, end_idx = 4;
 	u64 mem, sz, paddr_hi = 0;
 	u64 paddr_lo = ULLONG_MAX;
 	u32 pcicsrbar = 0, pcicsrbar_sz;
@@ -109,6 +109,13 @@
 
 	pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n",
 		    (u64)rsrc->start, (u64)rsrc->end - (u64)rsrc->start + 1);
+
+	if (of_device_is_compatible(hose->dn, "fsl,qoriq-pcie-v2.2")) {
+		win_idx = 2;
+		start_idx = 0;
+		end_idx = 3;
+	}
+
 	pci = ioremap(rsrc->start, rsrc->end - rsrc->start + 1);
 	if (!pci) {
 	    dev_err(hose->parent, "Unable to map ATMU registers\n");
@@ -118,7 +125,7 @@
 	/* Disable all windows (except powar0 since it's ignored) */
 	for(i = 1; i < 5; i++)
 		out_be32(&pci->pow[i].powar, 0);
-	for(i = 0; i < 3; i++)
+	for (i = start_idx; i < end_idx; i++)
 		out_be32(&pci->piw[i].piwar, 0);
 
 	/* Setup outbound MEM window */
@@ -204,7 +211,7 @@
 			mem_log++;
 		}
 
-		piwar |= (mem_log - 1);
+		piwar |= ((mem_log - 1) & PIWAR_SZ_MASK);
 
 		/* Setup inbound memory window */
 		out_be32(&pci->piw[win_idx].pitar,  0x00000000);
diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h
index 8ad72a1..a39ed5c 100644
--- a/arch/powerpc/sysdev/fsl_pci.h
+++ b/arch/powerpc/sysdev/fsl_pci.h
@@ -1,7 +1,7 @@
 /*
  * MPC85xx/86xx PCI Express structure define
  *
- * Copyright 2007 Freescale Semiconductor, Inc
+ * Copyright 2007,2011 Freescale Semiconductor, Inc
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -21,6 +21,7 @@
 #define PIWAR_TGI_LOCAL		0x00f00000	/* target - local memory */
 #define PIWAR_READ_SNOOP	0x00050000
 #define PIWAR_WRITE_SNOOP	0x00005000
+#define PIWAR_SZ_MASK          0x0000003f
 
 /* PCI/PCI Express outbound window reg */
 struct pci_outbound_window_regs {
@@ -49,7 +50,9 @@
 	__be32	int_ack;		/* 0x.008 - PCI Interrupt Acknowledge Register */
 	__be32	pex_otb_cpl_tor;	/* 0x.00c - PCIE Outbound completion timeout register */
 	__be32	pex_conf_tor;		/* 0x.010 - PCIE configuration timeout register */
-	u8	res2[12];
+	__be32	pex_config;		/* 0x.014 - PCIE CONFIG Register */
+	__be32	pex_int_status;		/* 0x.018 - PCIE interrupt status */
+	u8	res2[4];
 	__be32	pex_pme_mes_dr;		/* 0x.020 - PCIE PME and message detect register */
 	__be32	pex_pme_mes_disr;	/* 0x.024 - PCIE PME and message disable register */
 	__be32	pex_pme_mes_ier;	/* 0x.028 - PCIE PME and message interrupt enable register */
@@ -62,14 +65,14 @@
  * in all of the other outbound windows.
  */
 	struct pci_outbound_window_regs pow[5];
-
-	u8	res14[256];
-
-/* PCI/PCI Express inbound window 3-1
+	u8	res14[96];
+	struct pci_inbound_window_regs	pmit;	/* 0xd00 - 0xd9c Inbound MSI */
+	u8	res6[96];
+/* PCI/PCI Express inbound window 3-0
  * inbound window 1 supports only a 32-bit base address and does not
  * define an inbound window base extended address register.
  */
-	struct pci_inbound_window_regs piw[3];
+	struct pci_inbound_window_regs piw[4];
 
 	__be32	pex_err_dr;		/* 0x.e00 - PCI/PCIE error detect register */
 	u8	res21[4];