topic SATA init issues on P5020 with kernel 3.17-rc3 in P-Series

SATA init issues on P5020 with kernel 3.17-rc3

RabbitHoleComp — Thu, 04 Sep 2014 17:04:35 GMT

Has anyone here successfully built and booted a recent kernel from mainline? I have one built, however upon boot, sata init fails. Are there any known SATA-related erratum that I should be patching for?

Re: SATA init issues on P5020 with kernel 3.17-rc3

yipingwang — Wed, 10 Sep 2014 10:46:46 GMT

Hello Alex Perez,

Would you please provide your u-boot and Kernel boot log?

What is the revision of P5020 used?

Have a great day,
Yiping

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Re: SATA init issues on P5020 with kernel 3.17-rc3

RabbitHoleComp — Wed, 10 Sep 2014 16:18:22 GMT

yipingwang

Sure, I can provide a kernel boot log. The P5020 I am using is production/shipping silicon. If you can tell me how to verify (via /proc or similar mechanism) which version it is, I'll be happy to double-check.

Re: SATA init issues on P5020 with kernel 3.17-rc3

scottwood — Wed, 10 Sep 2014 20:36:05 GMT

In Custom kernel for T4240qds - boot issues you said that the patches I linked to resolved your SATA problems -- are there any remaining issues?

Re: SATA init issues on P5020 with kernel 3.17-rc3

scottwood — Wed, 10 Sep 2014 20:40:00 GMT

U-Boot prints the SoC version in the boot messages.

Re: SATA init issues on P5020 with kernel 3.17-rc3

RabbitHoleComp — Thu, 11 Sep 2014 00:28:03 GMT

Yes, those patches definitely resolve my SATA issues, however no PCI devices are enumerating on the bus (lspci returns nothing)

As for silicon revision, I am at 2.0:

U-Boot 2014.04-00110-g021fb01-dirty (Aug 20 2014 - 12:43:46)

CPU0:  P5020, Version: 2.0, (0x82200020)
Core:  e5500, Version: 1.2, (0x80240012)

Re: SATA init issues on P5020 with kernel 3.17-rc3

RabbitHoleComp — Mon, 29 Dec 2014 19:00:12 GMT

scottwood, I see that the necessary SATA patches have made it in to mainline as of 3.18, however as previously stated, I have a machine which (using both 3.17-rc3 AND 3.18.1, does not enumerate any PCI devices on the tree. Are there any known patchsets to resolve this?

Re: SATA init issues on P5020 with kernel 3.17-rc3

scottwood — Mon, 29 Dec 2014 21:46:44 GMT

Please post a new topic for the PCI issue, with a boot log and other relevant information.