Hi, I found a woking solution to use my pci wired ehci controller on the au1550 :-) I did this in drivers/pci/pci.c here is the patch: diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e491fde..3422ff4 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -29,7 +29,7 @@ int pci_domains_supported = 1; #endif #define DEFAULT_CARDBUS_IO_SIZE (256) -#define DEFAULT_CARDBUS_MEM_SIZE (64*1024*1024) +#define DEFAULT_CARDBUS_MEM_SIZE (32*1024*1024) /* pci=cbmemsize=nnM,cbiosize=nn can override this */ unsigned long pci_cardbus_io_size = DEFAULT_CARDBUS_IO_SIZE; unsigned long pci_cardbus_mem_size = DEFAULT_CARDBUS_MEM_SIZE; Because this code is working on i386 with 64 bit memsize we need a au1550 specific solution. I don't know how is the rigth way. Kind Regards, Frank Am Montag, den 26.01.2009, 11:21 +0100 schrieb Frank Neuber: > Hello again, > as I sad I want to use a USB controller wired on the pci bus. > The EHCI Probe (usb_hcd_pci_probe) fails with "controller already in > use" error because the request_mem_region gives an error. > > I think the Problem is that the CardBus bridge eat the mem. > As a refence you can compare the CadrBus mem window on 2.6.28.1 with > 2.6.16.11. > At the moment I have no idea how can I fix this resource conflict ... > > I found a pcibios_fixup_bus fuction that reorganize the dev->resource[i] > values but I'm not sure if this is called during pci init. I'll check > this now. > Is there a PCI guru for mips on the list? > > Kind regards, > Frank > > Kernel 2.6.28.1 output > pci 0000:00:0c.0: PME# supported from D1 D3hot D3cold > pci 0000:00:0c.0: PME# disabled > pci 0000:00:0c.1: PME# supported from D1 D3hot D3cold > pci 0000:00:0c.1: PME# disabled > pci 0000:00:0c.2: PME# supported from D0 D1 D2 D3hot D3cold > pci 0000:00:0c.2: PME# disabled > pci 0000:00:0d.0: PME# supported from D0 D1 D2 D3hot D3cold > pci 0000:00:0d.0: PME# disabled > pci 0000:00:0d.1: PME# supported from D0 D1 D2 D3hot D3cold > pci 0000:00:0d.1: PME# disabled > pci 0000:00:0c.0: BAR 0: can't allocate mem resource > [0x50000000-0x4fffffff] > pci 0000:00:0c.1: BAR 0: can't allocate mem resource > [0x50000000-0x4fffffff] > pci 0000:00:0d.0: BAR 0: can't allocate mem resource > [0x50000000-0x4fffffff] > pci 0000:00:0d.1: BAR 0: can't allocate mem resource > [0x50000000-0x4fffffff] > pci 0000:00:0c.2: BAR 0: can't allocate mem resource > [0x50000000-0x4fffffff] > pci 0000:00:0d.0: CardBus bridge, secondary bus 0000:01 > pci 0000:00:0d.0: IO window: 0x001000-0x0010ff > pci 0000:00:0d.0: IO window: 0x001400-0x0014ff > pci 0000:00:0d.0: PREFETCH window: 0x40000000-0x43ffffff > pci 0000:00:0d.0: MEM window: 0x44000000-0x47ffffff > pci 0000:00:0d.1: CardBus bridge, secondary bus 0000:05 > pci 0000:00:0d.1: IO window: 0x001800-0x0018ff > pci 0000:00:0d.1: IO window: 0x001c00-0x001cff > pci 0000:00:0d.1: PREFETCH window: 0x48000000-0x4bffffff > pci 0000:00:0d.1: MEM window: 0x4c000000-0x4fffffff > PCI: Enabling device 0000:00:0d.0 (0000 -> 0003) > PCI: Enabling device 0000:00:0d.1 (0000 -> 0003) > > > Kernel 2.6.16.11 output > PCI: Bus 1, cardbus bridge: 0000:00:0d.0 > IO window: 00001000-000010ff > IO window: 00001400-000014ff > PREFETCH window: 40000000-41ffffff > MEM window: 42000000-43ffffff > PCI: Bus 5, cardbus bridge: 0000:00:0d.1 > IO window: 00001800-000018ff > IO window: 00001c00-00001cff > PREFETCH window: 44000000-45ffffff > MEM window: 46000000-47ffffff > PCI: Enabling device 0000:00:0d.0 (0000 -> 0003) > PCI: Setting latency timer of device 0000:00:0d.0 to 64 > PCI: Enabling device 0000:00:0d.1 (0000 -> 0003) > PCI: Setting latency timer of device 0000:00:0d.1 to 64 > >
