(just realized I did not send this to the mailing list: sorry for the noise)
Hi Kumar, 2012/10/4 Kumar Gala <ga...@kernel.crashing.org>: > > On Oct 4, 2012, at 7:24 AM, Davide Viti wrote: > >> Hi, >> it turns out that if define CONFIG_PCI_NOSCAN in u-boot (as per [1]), the >> device behind the second controller is detected by the Linux kernel. >> >> Would >> you suggest any particular patch I should apply to fix this (I'm using kernel >> 2.6.34) >> >> thanx alot in advance >> Davide >> >> [1] http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/20140 > > My suggestion would be to try and dump all the controller registers between > the case that works and doesn't and compare. There's some minor setting > difference that I'm guessing is causing issues. > > - k Here's a diff for the configurations for the controller, obtained via hexdump -C /sys/bus/pci/devices/0001\:02\:00.0/config --- cfg0_2_NOK.txt 2012-10-05 09:37:44.854607000 +0200 +++ cfg0_2_OK.txt 2012-10-05 09:36:58.337399000 +0200 00000400 00 00 00 00 16 00 00 00 e2 04 00 00 00 00 00 00 |................| 00000410 04 00 00 00 01 00 00 00 00 00 00 00 40 40 00 00 |............@@..| 00000420 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| -00000430 00 00 00 00 00 00 00 00 21 81 9e 00 1a 90 01 00 |........!.......| +00000430 00 00 00 00 00 00 00 00 21 81 9e 00 83 20 08 00 |........!.... ..| 00000440 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000450 ce d7 14 00 20 1e fc 01 00 00 00 00 5c 0c 00 00 |.... .......\...| 00000460 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000470 57 19 00 01 11 00 20 0b 00 00 00 00 01 00 00 00 |W..... .........| 00000480 44 3d 00 00 00 00 00 00 f0 07 00 00 00 00 00 00 |D=..............| 00000490 c0 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| -000004a0 00 00 00 00 00 00 00 00 00 00 00 00 3c 01 00 00 |............<...| +000004a0 00 00 00 00 00 00 00 00 00 00 00 00 7e 01 00 00 |............~...| 000004b0 00 00 00 00 00 00 00 00 28 04 01 80 85 20 00 00 |........(.... ..| 000004c0 ff 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 |................| 000004d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000004e0 00 00 00 00 01 01 00 00 01 01 00 00 00 00 00 00 |................| -000004f0 0a 00 00 00 01 00 20 04 00 00 00 00 79 47 0e eb |...... .....yG..| +000004f0 4a 00 00 01 03 00 00 04 00 00 00 00 01 00 01 00 |J...............| 00000500 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000510 00 00 00 00 00 00 00 00 21 01 00 00 00 00 00 00 |........!.......| 00000520 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| Hope this mail client will not screw up the text... Just in case, I've pasted the entire register dumps to [1]. thank you so much for your time, D. [1] http://pastebin.com/zzAtzCeS _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
