Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-21 02:21:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

[POWERPC] FSL: Cleanup how we detect if we are a PCIe controller

Browse Source 
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>
This commit is contained in:
Kumar Gala 2007-07-11 13:31:58 -05:00
parent 62c66c8e55
commit 957ecffc25
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
arch/powerpc/sysdev/fsl_pci.c
View File

@ -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",