Bjorn, I am running into an issue with using a rtk8168 GiB NIC card with Keystone PCIe. It works for 32bit BARs such as the Marvel SATA controller on K2E. On another recent SoC (K2G) that re-uses the same driver and hardware, I have issues bringing up PCIe. The rtk8168 NIC gets detected, but all read values are zeros. Based on the boot log, it appears to be getting assigned 64bit BARs. See the log on K2E with Marvell controller and that on K2G with rtk8168. Is there way we can get it assigned 32Bit BAR and get it functional? Keystone is a 32bit ARM A15 SoC. Here are the logs. K2E log with Marvel controller (Good working case). =================================================== [ 0.236353] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600fffff] [ 0.236364] pci 0000:00:00.0: BAR 9: assigned [mem 0x60100000-0x601fffff pref] [ 0.236373] pci 0000:00:00.0: BAR 7: assigned [io 0x1000-0x1fff] [ 0.236385] pci 0000:01:00.0: BAR 6: assigned [mem 0x60100000-0x6010ffff pref] [ 0.236394] pci 0000:01:00.0: BAR 5: assigned [mem 0x60000000-0x600001ff] [ 0.236406] pci 0000:01:00.0: BAR 4: assigned [io 0x1000-0x100f] [ 0.236418] pci 0000:01:00.0: BAR 0: assigned [io 0x1010-0x1017] [ 0.236429] pci 0000:01:00.0: BAR 2: assigned [io 0x1018-0x101f] [ 0.236441] pci 0000:01:00.0: BAR 1: assigned [io 0x1020-0x1023] [ 0.236452] pci 0000:01:00.0: BAR 3: assigned [io 0x1024-0x1027] [ 0.236464] pci 0000:00:00.0: PCI bridge to [bus 01] [ 0.236472] pci 0000:00:00.0: bridge window [io 0x1000-0x1fff] [ 0.236481] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600fffff] [ 0.236490] pci 0000:00:00.0: bridge window [mem 0x60100000-0x601fffff pref] K2G log with Tealtek NIC card ============================= [ 2.311572] keystone-pcie 21801000.pcie: PCI host bridge to bus 0000:00 [ 2.318188] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.323844] pci_bus 0000:00: root bus resource [io 0x0000-0x3fff] [ 2.330023] pci_bus 0000:00: root bus resource [mem 0x50000000-0x5fffffff] [ 2.337567] PCI: bus0: Fast back to back transfers disabled [ 2.361159] PCI: bus1: Fast back to back transfers disabled [ 2.366889] pci 0000:00:00.0: BAR 8: assigned [mem 0x50000000-0x500fffff] [ 2.373841] pci 0000:00:00.0: BAR 9: assigned [mem 0x50100000-0x501fffff pref] [ 2.381061] pci 0000:00:00.0: BAR 7: assigned [io 0x1000-0x1fff] [ 2.387225] pci 0000:01:00.0: BAR 6: assigned [mem 0x50100000-0x5011ffff pref] [ 2.394505] pci 0000:01:00.0: BAR 4: assigned [mem 0x50120000-0x5012ffff 64bit pref] [ 2.402288] pci 0000:01:00.0: BAR 2: assigned [mem 0x50000000-0x50000fff 64bit] [ 2.409610] pci 0000:01:00.0: BAR 0: assigned [io 0x1000-0x10ff] [ 2.415729] pci 0000:00:00.0: PCI bridge to [bus 01] [ 2.420693] pci 0000:00:00.0: bridge window [io 0x1000-0x1fff] [ 2.426806] pci 0000:00:00.0: bridge window [mem 0x50000000-0x500fffff] [ 2.433610] pci 0000:00:00.0: bridge window [mem 0x50100000-0x501fffff pref] [ 2.441365] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt [ 2.448323] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt [ 2.455567] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded [ 2.461332] r8169 0000:01:00.0: enabling device (0140 -> 0143) [ 2.468789] r8169 0000:01:00.0 eth0: RTL8169 at 0xf0d6a000, 00:00:00:00:00:00, XID 00000000 IRQ 286 [ 2.478169] r8169 0000:01:00.0 eth0: jumbo features [frames: 7152 bytes, tx checksumming: ok] -- Murali Karicheri Linux Kernel, Keystone -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
