1 files changed, 15 insertions, 6 deletions

diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index e43465d34d2..0340a342f77 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -317,8 +317,12 @@ chrp_find_bridges(void)
 /* SL82C105 IDE Control/Status Register */
 #define SL82C105_IDECSR                0x40
 
-/* Fixup for Winbond ATA quirk, required for briq */
-void chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105)
+/* Fixup for Winbond ATA quirk, required for briq mostly because the
+ * 8259 is configured for level sensitive IRQ 14 and so wants the
+ * ATA controller to be set to fully native mode or bad things
+ * will happen.
+ */
+static void __devinit chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105)
 {
         u8 progif;
 
@@ -334,10 +338,15 @@ void chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105)
                 sl82c105->class |= 0x05;
                 /* Disable SL82C105 second port */
                 pci_write_config_word(sl82c105, SL82C105_IDECSR, 0x0003);
+                /* Clear IO BARs, they will be reassigned */
+                pci_write_config_dword(sl82c105, PCI_BASE_ADDRESS_0, 0);
+                pci_write_config_dword(sl82c105, PCI_BASE_ADDRESS_1, 0);
+                pci_write_config_dword(sl82c105, PCI_BASE_ADDRESS_2, 0);
+                pci_write_config_dword(sl82c105, PCI_BASE_ADDRESS_3, 0);
         }
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
-                chrp_pci_fixup_winbond_ata);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
+                        chrp_pci_fixup_winbond_ata);
 
 /* Pegasos2 firmware version 20040810 configures the built-in IDE controller
  * in legacy mode, but sets the PCI registers to PCI native mode.
@@ -345,7 +354,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
  * mode as well. The same fixup must be done to the class-code property in
  * the IDE node /pci@80000000/ide@C,1
  */
-static void chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
+static void __devinit chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
 {
         u8 progif;
         struct pci_dev *viaisa;
@@ -366,4 +375,4 @@ static void chrp_pci_fixup_vt8231_ata(struct pci_dev *viaide)
 
         pci_dev_put(viaisa);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, chrp_pci_fixup_vt8231_ata);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, chrp_pci_fixup_vt8231_ata);