FW: U-Boot 1.3.0 with Linux 2.6.25-11 on MPC8641D - Machine checkexception

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From: linuxppc-embedded-bounces+mf.low=plexus.com at ozlabs.org [mailto:linuxppc-embedded-bounces+mf.low=plexus.com at ozlabs.org] On Behalf Of joachim.bader at diehl-aerospace.de
Sent: Monday, September 15, 2008 9:56 AM
To: Linuxppc-embedded at ozlabs.org
Subject: U-Boot 1.3.0 with Linux 2.6.25-11 on MPC8641D - Machine checkexception



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): 

    pcie at d4008000 { 
        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]; 
        pcie at 0 { 
            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]; 
        }; 
    }; 
    pcie at d4009000 { 
        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]; 
        pcie at 0 { 
            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 


-- 
Dipl.-Ing. Joachim Bader
Research & Technology
Cockpit and Display Systems

Diehl Aerospace GmbH
An der Sandelmuehle 13
D-60439 Frankfurt
Phone +49-69-5805-1270
Fax       +49-69-5805-1400
e-mail:  joachim.bader at diehl-aerospace.de
http://www.diehl-aerospace.de 


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