diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-07-11 20:31:58 +0200 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-07-23 17:27:07 +0200 |
| commit | 957ecffc2527ebd414c6e35b65f0f744739b012d (patch) | |
| tree | 19ebce098f00688ae411603fc35effe792d1b769 /arch/powerpc/sysdev/fsl_pci.c | |
| parent | [POWERPC] Added indirect quirk to handle PCIe PHB that have issue w/no link (diff) | |
| download | linux-957ecffc2527ebd414c6e35b65f0f744739b012d.tar.xz linux-957ecffc2527ebd414c6e35b65f0f744739b012d.zip | |
[POWERPC] FSL: Cleanup how we detect if we are a PCIe controller
Use the PCI capabilities to determine if we are PCIe PHB. Also use
PPC_INDIRECT_TYPE_NO_PCIE_LINK since the Freescale PCIe controllers
will lock the system if they don't have link and you try to do a config
access to anything but the PHB.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev/fsl_pci.c')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 10c47b56702e..69d3c6eee83d 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -102,6 +102,10 @@ static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev) int i, res_idx = PCI_BRIDGE_RESOURCES; struct pci_controller *hose; + /* if we aren't a PCIe don't bother */ + if (!pci_find_capability(dev, PCI_CAP_ID_EXP)) + return ; + /* * Make the bridge be transparent. */ @@ -167,20 +171,16 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) hose->first_busno = bus_range ? bus_range[0] : 0x0; hose->last_busno = bus_range ? bus_range[1] : 0xff; - /* check PCI express bridge */ - if (of_device_is_compatible(dev, "fsl,mpc8548-pcie") || - of_device_is_compatible(dev, "fsl,mpc8641-pcie")) - hose->indirect_type = PPC_INDIRECT_TYPE_EXT_REG | - PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS; - setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4); setup_pci_cmd(hose); /* check PCI express link status */ - if (of_device_is_compatible(dev, "fsl,mpc8548-pcie") || - of_device_is_compatible(dev, "fsl,mpc8641-pcie")) + if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { + hose->indirect_type = PPC_INDIRECT_TYPE_EXT_REG | + PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS; if (fsl_pcie_check_link(hose)) - return -ENXIO; + hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK; + } printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx." "Firmware bus number: %d->%d\n", |