diff options
Diffstat (limited to 'arch/mips/pci/ops-tx4927.c')
| -rw-r--r-- | arch/mips/pci/ops-tx4927.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c index c6b49bccd27..6d844094ef5 100644 --- a/arch/mips/pci/ops-tx4927.c +++ b/arch/mips/pci/ops-tx4927.c @@ -85,6 +85,8 @@ static int check_abort(struct tx4927_pcic_reg __iomem *pcicptr) __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT << 16), &pcicptr->pcistatus); + /* flush write buffer */ + iob(); code = PCIBIOS_DEVICE_NOT_FOUND; } return code; @@ -406,3 +408,35 @@ void tx4927_report_pcic_status(void) tx4927_report_pcic_status1(pcicptrs[i].pcicptr); } } + +#ifdef CONFIG_TOSHIBA_FPCIB0 +static void __init tx4927_quirk_slc90e66_bridge(struct pci_dev *dev) +{ + struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(dev->bus); + + if (!pcicptr) + return; + if (__raw_readl(&pcicptr->pbacfg) & TX4927_PCIC_PBACFG_PBAEN) { + /* Reset Bus Arbiter */ + __raw_writel(TX4927_PCIC_PBACFG_RPBA, &pcicptr->pbacfg); + /* + * swap reqBP and reqXP (raise priority of SLC90E66). + * SLC90E66(PCI-ISA bridge) is connected to REQ2 on + * PCI Backplane board. + */ + __raw_writel(0x72543610, &pcicptr->pbareqport); + __raw_writel(0, &pcicptr->pbabm); + /* Use Fixed ParkMaster (required by SLC90E66) */ + __raw_writel(TX4927_PCIC_PBACFG_FIXPA, &pcicptr->pbacfg); + /* Enable Bus Arbiter */ + __raw_writel(TX4927_PCIC_PBACFG_FIXPA | + TX4927_PCIC_PBACFG_PBAEN, + &pcicptr->pbacfg); + printk(KERN_INFO "PCI: Use Fixed Park Master (REQPORT %08x)\n", + __raw_readl(&pcicptr->pbareqport)); + } +} +#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460 +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0, + tx4927_quirk_slc90e66_bridge); +#endif |