On 28.03.2017 11:24, Darren Stevens wrote:
Hello Tejun
On 27/03/2017, Tejun Heo wrote:
From a431ecd2d459da3c91a612061f09eb422ffe78e2 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Mon, 27 Mar 2017 13:52:00 -0400
Subject: [PATCH] Revert "pata_atiixp: Don't use unconnected secondary
port on SB600/SB700"
This reverts commit 5946fdaee4ba449e8fbb5d403e1ed69437f916e8.
The original commit's assumption that the secondary port is
unconnected turns out to be false.
Not entirely. I based my patch on information in AMD's document
43366_sb7xx_bdg_pub_1.00.p
I found this in the AMD SB710 Databook, rev 1.60, p. 56:
"The integrated parallel ATA controller contains a single channel but
can be configured as primary or secondary channel."
The IDE connector on my Asrock 980DE3/U3S3 motherboard is configured as
the secondary channel. The primary channel is used by the optional
SATA-IDE emulation mode.
I don't know much about kernel programming, southbridges, or ata
controllers, but I hope this bit of information helps.
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