redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

[POWERPC] Make sure virtual P2P bridge registers are setup on PCIe PHB

Browse source 
For the Freescale PCIe PHBs Not all firmwares setup the virtual P2P
bridge registers properly.  Make sure they get setup based on what
the struct pci_controller got from the device tree.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-07-20 13:49:29 -05:00
parent f64fddbeac
commit 7391ff35b2
1 changed files with 14 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
arch/powerpc/sysdev/fsl_pci.c
View file

@ -118,11 +118,24 @@ static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev)
return;
}
/* Clear out any of the virtual P2P bridge registers */
pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 0);
pci_write_config_word(dev, PCI_IO_LIMIT_UPPER16, 0);
pci_write_config_byte(dev, PCI_IO_BASE, 0x10);
pci_write_config_byte(dev, PCI_IO_LIMIT, 0);
pci_write_config_word(dev, PCI_MEMORY_BASE, 0x10);
pci_write_config_word(dev, PCI_MEMORY_LIMIT, 0);
pci_write_config_word(dev, PCI_PREF_BASE_UPPER32, 0x0);
pci_write_config_word(dev, PCI_PREF_LIMIT_UPPER32, 0x0);
pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10);
pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0);
if (hose->io_resource.flags) {
res = &dev->resource[res_idx++];
res->start = hose->io_resource.start;
res->end = hose->io_resource.end;
res->flags = hose->io_resource.flags;
update_bridge_resource(dev, res);
}
for (i = 0; i < 3; i++) {
@ -130,6 +143,7 @@ static void __devinit quirk_fsl_pcie_transparent(struct pci_dev *dev)
res->start = hose->mem_resources[i].start;
res->end = hose->mem_resources[i].end;
res->flags = hose->mem_resources[i].flags;
update_bridge_resource(dev, res);
}
}