diff options
| -rw-r--r-- | drivers/watchdog/sp5100_tco.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 0ccadb44b609..6467b91f2245 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -335,21 +335,24 @@ static unsigned char sp5100_tco_setupdevice(void) if (!sp5100_tco_pci) return 0; - pr_info("PCI Revision ID: 0x%x\n", sp5100_tco_pci->revision); + pr_info("PCI Vendor ID: 0x%x, Device ID: 0x%x, Revision ID: 0x%x\n", + sp5100_tco_pci->vendor, sp5100_tco_pci->device, + sp5100_tco_pci->revision); /* * Determine type of southbridge chipset. */ - if (sp5100_tco_pci->revision >= 0x40) { - dev_name = SB800_DEVNAME; - index_reg = SB800_IO_PM_INDEX_REG; - data_reg = SB800_IO_PM_DATA_REG; - base_addr = SB800_PM_WATCHDOG_BASE; - } else { + if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS && + sp5100_tco_pci->revision < 0x40) { dev_name = SP5100_DEVNAME; index_reg = SP5100_IO_PM_INDEX_REG; data_reg = SP5100_IO_PM_DATA_REG; base_addr = SP5100_PM_WATCHDOG_BASE; + } else { + dev_name = SB800_DEVNAME; + index_reg = SB800_IO_PM_INDEX_REG; + data_reg = SB800_IO_PM_DATA_REG; + base_addr = SB800_PM_WATCHDOG_BASE; } /* Request the IO ports used by this driver */ @@ -385,7 +388,12 @@ static unsigned char sp5100_tco_setupdevice(void) * Secondly, Find the watchdog timer MMIO address * from SBResource_MMIO register. */ - if (sp5100_tco_pci->revision >= 0x40) { + if (sp5100_tco_pci->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS && + sp5100_tco_pci->revision < 0x40) { + /* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */ + pci_read_config_dword(sp5100_tco_pci, + SP5100_SB_RESOURCE_MMIO_BASE, &val); + } else { /* Read SBResource_MMIO from AcpiMmioEn(PM_Reg: 24h) */ outb(SB800_PM_ACPI_MMIO_EN+3, SB800_IO_PM_INDEX_REG); val = inb(SB800_IO_PM_DATA_REG); @@ -395,10 +403,6 @@ static unsigned char sp5100_tco_setupdevice(void) val = val << 8 | inb(SB800_IO_PM_DATA_REG); outb(SB800_PM_ACPI_MMIO_EN+0, SB800_IO_PM_INDEX_REG); val = val << 8 | inb(SB800_IO_PM_DATA_REG); - } else { - /* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */ - pci_read_config_dword(sp5100_tco_pci, - SP5100_SB_RESOURCE_MMIO_BASE, &val); } /* The SBResource_MMIO is enabled and mapped memory space? */ |