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Subject: Re: use generic DMA mapping code in powerpc V4
From: Christian Zigotzky <chzigotzky@xenosoft.de>
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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> On 12. Dec 2018, at 01:47, Benjamin Herrenschmidt <benh@kernel.crashing.or=
g> wrote:
>=20
>> On Tue, 2018-12-11 at 19:17 +0100, Christian Zigotzky wrote:
>> X5000 (P5020 board): U-Boot loads the kernel and the dtb file. Then the=20=

>> kernel starts but it doesn't find any hard disks (partitions). That=20
>> means this is also the bad commit for the P5020 board.
>=20
> What are the disks hanging off ? A PCIe device of some sort ?
>=20
> Can you send good & bad dmesg logs ?
>=20
> Ben.
>=20
>=20
Unfortunately not. It doesn=E2=80=99t detect any hard disk. That means the k=
ernel ring buffer won=E2=80=99t save to log files. I don=E2=80=99t have a se=
rial null modem cable for seeing all output. We use SATA disks. I will inves=
tigate more in this problem with rollback the files in the bad commit.

=E2=80=94 Christian