Try to check out the configuration of the outbound and inbound windows.
Regards.
Kevin Dockan ha scritto:
> Hello everybody,
>
> I am trying to put into operation a proprietary board using a freescale
> MPC8641D. I use U-boot 1.3.0 and Linux kernel 2.6.25-11.
> On one PCIe-bus I have a PEX8518 followed by a PEX8114. A USB-controller is
> connected to the 8114.
>
>
> +--------------------------+
> | |
> | MPC 8641 D |
> | |
> +--------------------------+
> |
> PEX8518 <----------------- PCIe switch
> |
> PEX8114 <----------------- PCIe to PCI bridge
> |
> ISP1562 <----------------- USB controller
>
> The PCIe-components are scanned correctly, resources (mem and IO) are
> assigned (correctly as far as I understand),
> but on the first read access to a control register of the usb-device the
> kernel generates "Oops: Machine check, sig: 7 [#1]".
> Writing to the same register does not produce an "Oops".
>
> The PCIe bus is defined in dts file as follows (dump from U-boot):
>
> [EMAIL PROTECTED] {
> cell-index = <0>;
> compatible = "fsl,mpc8641-pcie";
> device_type = "pci";
> #interrupt-cells = <1>;
> #size-cells = <2>;
> #address-cells = <3>;
> reg = <1000>;
> bus-range = <4>;
> ranges = [02 00 00 00 00 00 00 00 40 00 00 00 40 00 00 00 00 00 00 00
> 40 00 00 00 01 00 00 00 00 00 00 00 c0 00 00 00 c0 00 00 00 00 00 00 00 00 10
> 00 00];
> clock-frequency = <1fca055>;
> interrupt-parent = <40000>;
> interrupts = <2>;
> interrupt-map-mask = [00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00
> 07];
> interrupt-map = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00
> 04 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 02 00 04 00 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00 00 03 00 04 00 00 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 04 00 04 00 00 00 00 00 03 00 00 00 01];
> [EMAIL PROTECTED] {
> reg = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00];
> #size-cells = <2>;
> #address-cells = <3>;
> device_type = "pci";
> ranges = [02 00 00 00 00 00 00 00 40 00 00 00 02 00 00 00 00 00
> 00 00 40 00 00 00 00 00 00 00 40 00 00 00 01 00 00 00 00 00 00 00 c0 00 00 00
> 01 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 00 10 00 00];
> };
> };
> [EMAIL PROTECTED] {
> cell-index = <1>;
> compatible = "fsl,mpc8641-pcie";
> device_type = "pci";
> #interrupt-cells = <1>;
> #size-cells = <2>;
> #address-cells = <3>;
> reg = <1000>;
> bus-range = <6>;
> ranges = [02 00 00 00 00 00 00 00 80 00 00 00 80 00 00 00 00 00 00 00
> 40 00 00 00 01 00 00 00 00 00 00 00 c0 10 00 00 c0 10 00 00 00 00 00 00 00 10
> 00 00];
> clock-frequency = <1fca055>;
> interrupt-parent = <40000>;
> interrupts = <2>;
> interrupt-map-mask = [00 00 f8 00 00 00 00 00 00 00 00 00 00 00 00
> 07];
> interrupt-map = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00
> 04 00 00 00 00 00 04 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 02 00 04 00 00 00 00 00 05 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00 00 03 00 04 00 00 00 00 00 06 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 04 00 04 00 00 00 00 00 07 00 00 00 01];
> [EMAIL PROTECTED] {
> reg = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00];
> #size-cells = <2>;
> #address-cells = <3>;
> device_type = "pci";
> ranges = [02 00 00 00 00 00 00 00 80 00 00 00 02 00 00 00 00 00
> 00 00 80 00 00 00 00 00 00 00 40 00 00 00 01 00 00 00 00 00 00 00 c0 10 00 00
> 01 00 00 00 00 00 00 00 c0 10 00 00 00 00 00 00 00 10 00 00];
> };
> };
>
> and here the output from kernel:
>
> quirk_usb_handoff_ohci: resource start = 0x80000000, len = 0x00001000
> quirk_usb_handoff_ohci: base = 0xe1056000, offset = 0x00000004
> Machine check in kernel mode.
> Caused by (from SRR1=149030): Transfer error ack signal
> Oops: Machine check, sig: 7 [#1]
> TAURUS
> NIP: c0297f4c LR: c0297f44 CTR: c00115d0
> REGS: df821e60 TRAP: 0200 Not tainted (2.6.25.11)
> MSR: 00149030 <EE,ME,IR,DR> CR: 24000022 XER: 00000000
> TASK = df805410[1] 'swapper' THREAD: df820000
> GPR00: c0297f44 df821f10 df805410 00000042 00000001 00000001 00000000
> 00020000
> GPR08: 00000036 c0333fe4 00006b61 c0360000 44000028 f7fbfffc 0fffac00
> ffffffff
> GPR16: 00800000 007fff00 df821f78 c02d0000 c0330000 c0330000 00000000
> 0fff5464
> GPR24: c0330000 c02d0000 00000000 00000000 e1056000 df841218 df841218
> e1056004
> NIP [c0297f4c] 0xc0297f4c
> LR [c0297f44] 0xc0297f44
> Call Trace:
> [df821f10] [c0297f44] 0xc0297f44 (unreliable)
> [df821f40] [c01617dc] pci_fixup_device+0xec/0x140
> [df821f60] [c0295ae0] 0xc0295ae0
> [df821f70] [c030c198] kernel_init+0x9c/0x290
> [df821ff0] [c0010a6c] kernel_thread+0x44/0x60
> Instruction dump:
> XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
> XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
> ---[ end trace 97996e90be8a1237 ]---
> Kernel panic - not syncing: Attempted to kill init!
> Rebooting in 180 seconds..
>
> where resource start = 0x80000000 is the physical address of the USB
> controller, base = 0xe1056000 is the virtual address.
>
> Does anyone know this kind of problem and can give me a hint.
>
> Kind Regards,
> Joachim
>
>
>
> ------------------------------------------------------------------------
>
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--
Marco Stornelli
Embedded Software Engineer
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni
http://www.coritel.it
[EMAIL PROTECTED]
+39 06 72582838
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