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powerpc/pci: Use PCIe IP block revision register instead of compatible

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Freescale PCIe IP block revision bigger than rev2.2 will also need
redefine the sequence of inbound windows. So change to use IP block
revision instead of compatible for the judgment.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Roy Zang 2012-09-03 17:22:10 +08:00 committed by Kumar Gala
parent 6cc1b4e931
commit 9e67886bec
1 changed files with 8 additions and 6 deletions
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14
arch/powerpc/sysdev/fsl_pci.c
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@ -143,18 +143,20 @@ static void __init setup_pci_atmu(struct pci_controller *hose,
pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n",
(u64)rsrc->start, (u64)resource_size(rsrc));
if (of_device_is_compatible(hose->dn, "fsl,qoriq-pcie-v2.2")) {
win_idx = 2;
start_idx = 0;
end_idx = 3;
}
pci = ioremap(rsrc->start, resource_size(rsrc));
if (!pci) {
dev_err(hose->parent, "Unable to map ATMU registers\n");
return;
}
if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) {
win_idx = 2;
start_idx = 0;
end_idx = 3;
}
}
/* Disable all windows (except powar0 since it's ignored) */
for(i = 1; i < 5; i++)
out_be32(&pci->pow[i].powar, 0);