diff options
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index e159d6604494..0eeac60042b3 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -679,6 +679,33 @@ static int pci_setup_device(struct pci_dev * dev) pci_read_bases(dev, 6, PCI_ROM_ADDRESS); pci_read_config_word(dev, PCI_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor); pci_read_config_word(dev, PCI_SUBSYSTEM_ID, &dev->subsystem_device); + + /* + * Do the ugly legacy mode stuff here rather than broken chip + * quirk code. Legacy mode ATA controllers have fixed + * addresses. These are not always echoed in BAR0-3, and + * BAR0-3 in a few cases contain junk! + */ + if (class == PCI_CLASS_STORAGE_IDE) { + u8 progif; + pci_read_config_byte(dev, PCI_CLASS_PROG, &progif); + if ((progif & 1) == 0) { + dev->resource[0].start = 0x1F0; + dev->resource[0].end = 0x1F7; + dev->resource[0].flags = IORESOURCE_IO; + dev->resource[1].start = 0x3F6; + dev->resource[1].end = 0x3F6; + dev->resource[1].flags = IORESOURCE_IO; + } + if ((progif & 4) == 0) { + dev->resource[2].start = 0x170; + dev->resource[2].end = 0x177; + dev->resource[2].flags = IORESOURCE_IO; + dev->resource[3].start = 0x376; + dev->resource[3].end = 0x376; + dev->resource[3].flags = IORESOURCE_IO; + } + } break; case PCI_HEADER_TYPE_BRIDGE: /* bridge header */ |