linux-kernel - [patch] libata: use correct map

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Date:	Thu, 19 Oct 2006 13:27:39 -0700
From:	Kristen Carlson Accardi <kristen.c.accardi@...el.com>
To:	linux-ide@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, jeff@...zik.org
Subject: [patch] libata: use correct map_db values for ICH8


Use valid values for ICH8 map_db.  With the old values, when the 
controller was in Native mode, and SCC was 1 (drives configured for
IDE), any drive plugged into a slave port was not recognized.  For
Combined Mode (and SCC is still 1), 2 is a value value for MAP.map_value,
and needs to be recognized.

Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@...el.com>
---
 drivers/ata/ata_piix.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 2.6-git.orig/drivers/ata/ata_piix.c
+++ 2.6-git/drivers/ata/ata_piix.c
@@ -432,9 +432,9 @@ static const struct piix_map_db ich8_map
 	.present_shift = 8,
 	.map = {
 		/* PM   PS   SM   SS       MAP */
-		{  P0,  NA,  P1,  NA }, /* 00b (hardwired) */
+		{  P0,  P2,  P1,  P3 }, /* 00b (hardwired when in AHCI) */
 		{  RV,  RV,  RV,  RV },
-		{  RV,  RV,  RV,  RV }, /* 10b (never) */
+		{  IDE,  IDE,  NA,  NA }, /* 10b (IDE mode) */
 		{  RV,  RV,  RV,  RV },
 	},
 };
-
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