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<TITLE>U-Boot 1.3.0 with Linux 2.6.25-11 on MPC8641D - Machine checkexception</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hello everybody, </FONT>
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<P><FONT SIZE=2 FACE="Arial">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. </FONT></P>
<P><FONT SIZE=2 FACE="Arial">On one PCIe-bus I have a PEX8518 followed by a PEX8114. A USB-controller is connected to the 8114. </FONT>
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<P><FONT SIZE=2 FACE="Arial"> +--------------------------+ </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | MPC 8641 D | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> +--------------------------+ </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> PEX8518 <----------------- PCIe switch </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> PEX8114 <----------------- PCIe to PCI bridge </FONT>
<BR><FONT SIZE=2 FACE="Arial"> | </FONT>
<BR><FONT SIZE=2 FACE="Arial"> ISP1562 <----------------- USB controller </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">The PCIe-components are scanned correctly, resources (mem and IO) are assigned (correctly as far as I understand), </FONT>
<BR><FONT SIZE=2 FACE="Arial">but on the first read access to a control register of the usb-device the kernel generates "Oops: Machine check, sig: 7 [#1]". </FONT></P>
<P><FONT SIZE=2 FACE="Arial">Writing to the same register does not produce an "Oops". </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">The PCIe bus is defined in dts file as follows (dump from U-boot): </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial"> pcie@d4008000 { </FONT>
<BR><FONT SIZE=2 FACE="Arial"> cell-index = <0>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> compatible = "fsl,mpc8641-pcie"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> device_type = "pci"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #interrupt-cells = <1>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #size-cells = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #address-cells = <3>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> reg = <1000>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> bus-range = <4>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> clock-frequency = <1fca055>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupt-parent = <40000>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupts = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupt-map-mask = [00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00 07]; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> pcie@0 { </FONT>
<BR><FONT SIZE=2 FACE="Arial"> reg = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #size-cells = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #address-cells = <3>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> device_type = "pci"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> }; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> }; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> pcie@d4009000 { </FONT>
<BR><FONT SIZE=2 FACE="Arial"> cell-index = <1>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> compatible = "fsl,mpc8641-pcie"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> device_type = "pci"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #interrupt-cells = <1>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #size-cells = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #address-cells = <3>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> reg = <1000>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> bus-range = <6>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> clock-frequency = <1fca055>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupt-parent = <40000>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupts = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> interrupt-map-mask = [00 00 f8 00 00 00 00 00 00 00 00 00 00 00 00 07]; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> pcie@0 { </FONT>
<BR><FONT SIZE=2 FACE="Arial"> reg = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #size-cells = <2>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> #address-cells = <3>; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> device_type = "pci"; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> 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]; </FONT></P>
<P><FONT SIZE=2 FACE="Arial"> }; </FONT>
<BR><FONT SIZE=2 FACE="Arial"> }; </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">and here the output from kernel: </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">quirk_usb_handoff_ohci: resource start = 0x80000000, len = 0x00001000 </FONT>
<BR><FONT SIZE=2 FACE="Arial">quirk_usb_handoff_ohci: base = 0xe1056000, offset = 0x00000004 </FONT>
<BR><FONT SIZE=2 FACE="Arial">Machine check in kernel mode. </FONT>
<BR><FONT SIZE=2 FACE="Arial">Caused by (from SRR1=149030): Transfer error ack signal </FONT>
<BR><FONT SIZE=2 FACE="Arial">Oops: Machine check, sig: 7 [#1] </FONT>
<BR><FONT SIZE=2 FACE="Arial">TAURUS </FONT>
<BR><FONT SIZE=2 FACE="Arial">NIP: c0297f4c LR: c0297f44 CTR: c00115d0 </FONT>
<BR><FONT SIZE=2 FACE="Arial">REGS: df821e60 TRAP: 0200 Not tainted (2.6.25.11) </FONT>
<BR><FONT SIZE=2 FACE="Arial">MSR: 00149030 <EE,ME,IR,DR> CR: 24000022 XER: 00000000 </FONT>
<BR><FONT SIZE=2 FACE="Arial">TASK = df805410[1] 'swapper' THREAD: df820000 </FONT>
<BR><FONT SIZE=2 FACE="Arial">GPR00: c0297f44 df821f10 df805410 00000042 00000001 00000001 00000000 00020000 </FONT>
<BR><FONT SIZE=2 FACE="Arial">GPR08: 00000036 c0333fe4 00006b61 c0360000 44000028 f7fbfffc 0fffac00 ffffffff </FONT>
<BR><FONT SIZE=2 FACE="Arial">GPR16: 00800000 007fff00 df821f78 c02d0000 c0330000 c0330000 00000000 0fff5464 </FONT>
<BR><FONT SIZE=2 FACE="Arial">GPR24: c0330000 c02d0000 00000000 00000000 e1056000 df841218 df841218 e1056004 </FONT>
<BR><FONT SIZE=2 FACE="Arial">NIP [c0297f4c] 0xc0297f4c </FONT>
<BR><FONT SIZE=2 FACE="Arial">LR [c0297f44] 0xc0297f44 </FONT>
<BR><FONT SIZE=2 FACE="Arial">Call Trace: </FONT>
<BR><FONT SIZE=2 FACE="Arial">[df821f10] [c0297f44] 0xc0297f44 (unreliable) </FONT>
<BR><FONT SIZE=2 FACE="Arial">[df821f40] [c01617dc] pci_fixup_device+0xec/0x140 </FONT>
<BR><FONT SIZE=2 FACE="Arial">[df821f60] [c0295ae0] 0xc0295ae0 </FONT>
<BR><FONT SIZE=2 FACE="Arial">[df821f70] [c030c198] kernel_init+0x9c/0x290 </FONT>
<BR><FONT SIZE=2 FACE="Arial">[df821ff0] [c0010a6c] kernel_thread+0x44/0x60 </FONT>
<BR><FONT SIZE=2 FACE="Arial">Instruction dump: </FONT>
<BR><FONT SIZE=2 FACE="Arial">XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX </FONT>
<BR><FONT SIZE=2 FACE="Arial">XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX </FONT>
<BR><FONT SIZE=2 FACE="Arial">---[ end trace 97996e90be8a1237 ]--- </FONT>
<BR><FONT SIZE=2 FACE="Arial">Kernel panic - not syncing: Attempted to kill init! </FONT>
<BR><FONT SIZE=2 FACE="Arial">Rebooting in 180 seconds.. </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">where resource start = 0x80000000 is the physical address of the USB controller, base = 0xe1056000 is the virtual address. </FONT></P>
<P><FONT SIZE=2 FACE="Arial">Does anyone know this kind of problem and can give me a hint. </FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Kind Regards, </FONT>
<BR><FONT SIZE=2 FACE="Arial">Joachim </FONT>
</P>
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<P><FONT SIZE=2 FACE="Arial">-- </FONT>
<BR><FONT SIZE=2 FACE="Arial">Dipl.-Ing. Joachim Bader</FONT>
<BR><FONT SIZE=2 FACE="Arial">Research & Technology</FONT>
<BR><FONT SIZE=2 FACE="Arial">Cockpit and Display Systems</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Diehl Aerospace GmbH</FONT>
<BR><FONT SIZE=2 FACE="Arial">An der Sandelmuehle 13</FONT>
<BR><FONT SIZE=2 FACE="Arial">D-60439 Frankfurt</FONT>
<BR><FONT SIZE=2 FACE="Arial">Phone +49-69-5805-1270</FONT>
<BR><FONT SIZE=2 FACE="Arial">Fax +49-69-5805-1400</FONT>
<BR><FONT SIZE=2 FACE="Arial">e-mail: joachim.bader@diehl-aerospace.de</FONT>
<BR><FONT SIZE=2 FACE="Arial"><A HREF="http://www.diehl-aerospace.de">http://www.diehl-aerospace.de</A> </FONT>
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