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Revert "[cns3xxx]: clean up PCI bus topology" (r35079) 

It breaks PCIe IRQ mapping and possibly other things

SVN-Revision: 35842
lede-17.01
Felix Fietkau 2013-03-02 00:32:54 +00:00
parent 107e0c6d1f
commit a9c584c277
1 changed files with 0 additions and 27 deletions
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27
target/linux/cns3xxx/patches-3.3/066-pcie_bus_topology.patch
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@ -1,27 +0,0 @@
--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -79,9 +79,11 @@ static void __iomem *cns3xxx_pci_cfg_bas
* the first device on the same bus as the CNS PCI bridge.
*/
if (busno == 0) {
- if (slot > 1)
+ if (slot > 0)
return NULL;
type = slot;
+ } else if (busno == 1) {
+ type = CNS3XXX_CFG0_TYPE;
} else {
type = CNS3XXX_CFG1_TYPE;
}
@@ -428,8 +430,9 @@ static void __init cns3xxx_pcie_hw_init(
if (!cnspci->linked)
return;
- /* Set Device Max_Read_Request_Size to 128 byte */
- devfn = PCI_DEVFN(1, 0);
+ /* Configure Root Complex: Set Device Max_Read_Request_Size to 128 byte */
+ bus.number = 1;
+ devfn = PCI_DEVFN(0, 0);
pos = pci_bus_find_capability(&bus, devfn, PCI_CAP_ID_EXP);
pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc);
dc &= ~(0x3 << 12); /* Clear Device Control Register [14:12] */