commit 0c824b51b338c808de650b440ba5f9f4a725f7fc
author Tony Battersby <tonyb@cybernetics.com> Tue Oct 16 22:29:52 2007 +0200
committer Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Tue Oct 16 22:29:52 2007 +0200
tree c725cd8e5b88b56f1844a46acd2f8c5231516952
parent 821f3eff7cdb9d6c7076effabd46c96c322daed1

ide: fix serverworks.c UDMA regression

The patch described by the following excerpt from ChangeLog-2.6.22 makes
it impossible to use UDMA on a Tyan S2707 motherboard (SvrWks CSB5):

commit 2d5eaa6dd744a641e75503232a01f52d0768884c
Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date:   Thu May 10 00:01:08 2007 +0200

    ide: rework the code for selecting the best DMA transfer mode (v3)

    ...

This one-line patch against 2.6.23 fixes the problem.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/serverworks.c

diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index 49ec0ac..40b0383 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -97,6 +97,7 @@
 			mode = 2;
 
 		switch(mode) {
+		case 3:	 mask = 0x3f; break;
 		case 2:	 mask = 0x1f; break;
 		case 1:	 mask = 0x07; break;
 		default: mask = 0x00; break;