1 files changed, 10 insertions, 14 deletions

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
index c3f2c21024e3..87ff522f28b5 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
@@ -20,14 +20,6 @@
 
 
 /* ======================================================================== */
-/* PCI windows config                                                       */
-/* ======================================================================== */
-
-#define MPC52xx_PCI_TARGET_IO   0xf0000000
-#define MPC52xx_PCI_TARGET_MEM  0x00000000
-
-
-/* ======================================================================== */
 /* Structures mapping & Defines for PCI Unit                                */
 /* ======================================================================== */
 
@@ -244,7 +236,7 @@ static struct pci_ops mpc52xx_pci_ops = {
 
 static void __init
 mpc52xx_pci_setup(struct pci_controller *hose,
-                  struct mpc52xx_pci __iomem *pci_regs)
+                  struct mpc52xx_pci __iomem *pci_regs, phys_addr_t pci_phys)
 {
         struct resource *res;
         u32 tmp;
@@ -314,10 +306,14 @@ mpc52xx_pci_setup(struct pci_controller *hose,
         /* Set all the IWCR fields at once; they're in the same reg */
         out_be32(&pci_regs->iwcr, MPC52xx_PCI_IWCR_PACK(iwcr0, iwcr1, iwcr2));
 
-        out_be32(&pci_regs->tbatr0,
-                MPC52xx_PCI_TBATR_ENABLE | MPC52xx_PCI_TARGET_IO );
-        out_be32(&pci_regs->tbatr1,
-                MPC52xx_PCI_TBATR_ENABLE | MPC52xx_PCI_TARGET_MEM );
+        /* Map IMMR onto PCI bus */
+        pci_phys &= 0xfffc0000; /* bar0 has only 14 significant bits */
+        out_be32(&pci_regs->tbatr0, MPC52xx_PCI_TBATR_ENABLE | pci_phys);
+        out_be32(&pci_regs->bar0, PCI_BASE_ADDRESS_MEM_PREFETCH | pci_phys);
+
+        /* Map memory onto PCI bus */
+        out_be32(&pci_regs->tbatr1, MPC52xx_PCI_TBATR_ENABLE);
+        out_be32(&pci_regs->bar1, PCI_BASE_ADDRESS_MEM_PREFETCH);
 
         out_be32(&pci_regs->tcr, MPC52xx_PCI_TCR_LD | MPC52xx_PCI_TCR_WCT8);
 
@@ -414,7 +410,7 @@ mpc52xx_add_bridge(struct device_node *node)
 
         /* Finish setting up PCI using values obtained by
          * pci_proces_bridge_OF_ranges */
-        mpc52xx_pci_setup(hose, pci_regs);
+        mpc52xx_pci_setup(hose, pci_regs, rsrc.start);
 
         return 0;
 }