On Tue, Feb 8, 2011 at 2:07 PM, Alan Cox [off-list ref] wrote:

On Tue, 08 Feb 2011 13:24:09 +0100
Bartlomiej Zolnierkiewicz [off-list ref] wrote:

quoted

quoted

From 8acc9371550ce5f98da56f6888ae4b898096ed2c Mon Sep 17 00:00:00 2001

From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 8 Feb 2011 12:39:25 +0100
Subject: [PATCH 05/20] pata_efar: always program master_data before slave_data

We may need to set SITRE before programming slave_data.

Do you have a documentation cite for this or is it random fiddling with a
driver you can't test ?

It is good to enable SITRE register before programming it and all
Intel controllers
(from which EFAR chipset is derived) are programmed this way (per ata_piix.c).