diff options
Diffstat (limited to 'arch/mips/pci/fixup-malta.c')
| -rw-r--r-- | arch/mips/pci/fixup-malta.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c index 7a0eda782e3..40e920c653c 100644 --- a/arch/mips/pci/fixup-malta.c +++ b/arch/mips/pci/fixup-malta.c @@ -51,10 +51,24 @@ 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; u32 reg_val32; + u16 reg_val16; /* PIIX PIRQC[A:D] irq mappings */ static int piixirqmap[PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MAX] = { 0, 0, 0, 3, @@ -94,6 +108,11 @@ static void malta_piix_func0_fixup(struct pci_dev *pdev) pci_read_config_byte(pdev, PIIX4_FUNC0_SERIRQC, ®_val); reg_val |= PIIX4_FUNC0_SERIRQC_EN | PIIX4_FUNC0_SERIRQC_CONT; pci_write_config_byte(pdev, PIIX4_FUNC0_SERIRQC, reg_val); + + /* Enable response to special cycles */ + pci_read_config_word(pdev, PCI_COMMAND, ®_val16); + pci_write_config_word(pdev, PCI_COMMAND, + reg_val16 | PCI_COMMAND_SPECIAL); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0, |