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* ATIIXP patch
@ 2006-06-21  9:23 Velu Erwan
  0 siblings, 0 replies; only message in thread
From: Velu Erwan @ 2006-06-21  9:23 UTC (permalink / raw)
  To: akpm; +Cc: bzolnier, Bruno Harbulot, linux-ide@vger.kernel.org

[-- Attachment #1: Type: text/plain, Size: 456 bytes --]

Hey Andrew,

As suggested by Randy Dunlap on the linux-ide mailing list 
(http://marc.theaimsgroup.com/?l=linux-ide&m=115082279504424&w=2),
I send you this patch Bruno Harbulot did on a previous 'really crappy' 
patch I did.

We've been testing it for a while, it works fine so we'd like to see it 
intergrated in your tree and maybe upstream later.

This patch allow the sata port of the ATIIXP chipset to work at 55MB/sec 
instead of 14.

Regards,
Erwan

[-- Attachment #2: ide-iops.c.patch --]
[-- Type: text/x-patch, Size: 955 bytes --]

--- linux-source-2.6.14.orig/drivers/ide/ide-iops.c	2005-10-28 01:02:08.000000000 +0100
+++ linux-source-2.6.14/drivers/ide/ide-iops.c	2005-11-05 14:58:04.000000000 +0000
@@ -1,6 +1,10 @@
 /*
+ * linux/drivers/ide/ide-iops.c	Version 0.38	Nov 05, 2005
  * linux/drivers/ide/ide-iops.c	Version 0.37	Mar 05, 2003
  *
+ *  Version 0.38		80pin cable detection for SATA drive
+ *  				(bruno_harbulot@yahoo.co.uk)
+ *  
  *  Copyright (C) 2000-2002	Andre Hedrick <andre@linux-ide.org>
  *  Copyright (C) 2003		Red Hat <alan@redhat.com>
  *
@@ -601,6 +605,14 @@
  */
 u8 eighty_ninty_three (ide_drive_t *drive)
 {
+	/* On SATA drives, word 93 (i.e. hw_config) should be 0.
+	 * This can be tested with the hw_config or this:
+	   if (ata_id_is_sata((u16*)(drive->id)))
+		return 1;
+	 * (remember to include <linux/ata.h>)
+	 */
+	if (drive->id->hw_config == 0)
+		return 1;
 	if(HWIF(drive)->udma_four == 0)
 		return 0;
 	if (!(drive->id->hw_config & 0x6000))

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2006-06-21  9:23 ATIIXP patch Velu Erwan

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