MIPS: Malta: Setup PM I/O region on boot

[karo-tx-linux.git] / arch / mips / pci / fixup-malta.c

diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 7a0eda782e35cf8c51d894c1b832dd9692f41c15..2f9e52a1a7504e884ef84a407943c5d510b55a4b 100644 (file)
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -51,6 +51,19 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
        return 0;
 }
 
+static void malta_piix_func3_base_fixup(struct pci_dev *dev)
+{
+       /* Set a sane PM I/O base address */
+       pci_write_config_word(dev, PIIX4_FUNC3_PMBA, 0x1000);
+
+       /* Enable access to the PM I/O region */
+       pci_write_config_byte(dev, PIIX4_FUNC3_PMREGMISC,
+                             PIIX4_FUNC3_PMREGMISC_EN);
+}
+
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3,
+                       malta_piix_func3_base_fixup);
+
 static void malta_piix_func0_fixup(struct pci_dev *pdev)
 {
        unsigned char reg_val;