linux-kernel - [PATCH 08/20] pata_it8213: add UDMA100 and UDMA133 support

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Date:	Tue, 08 Feb 2011 13:24:31 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 08/20] pata_it8213: add UDMA100 and UDMA133 support

>From d7d8c9c8372230ec596814ca3281564156f94926 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Date: Tue, 8 Feb 2011 12:39:26 +0100
Subject: [PATCH 08/20] pata_it8213: add UDMA100 and UDMA133 support

Fixes IDE -> libata regression.

IDE's it8213 host driver has been supporting those modes
(per official documentation) since the initial driver's merge
on Feb 7 2007 (commit 9c6712c0 "ide: add it8213 IDE driver").

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ata/pata_it8213.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_it8213.c b/drivers/ata/pata_it8213.c
index ccfd1ae..e045eab 100644
--- a/drivers/ata/pata_it8213.c
+++ b/drivers/ata/pata_it8213.c
@@ -164,7 +164,7 @@ static void it8213_set_dmamode (struct ata_port *ap, struct ata_device *adev)
 
 		/* Clocks follow the PIIX style */
 		u_speed = min(2 - (udma & 1), udma);
-		if (udma == 5)
+		if (udma > 4)
 			u_clock = 0x1000;	/* 100Mhz */
 		else if (udma > 2)
 			u_clock = 1;		/* 66Mhz */
@@ -234,7 +234,7 @@ static int it8213_init_one (struct pci_dev *pdev, const struct pci_device_id *en
 		.flags		= ATA_FLAG_SLAVE_POSS,
 		.pio_mask	= ATA_PIO4,
 		.mwdma_mask	= ATA_MWDMA12_ONLY,
-		.udma_mask 	= ATA_UDMA4, /* FIXME: want UDMA 100? */
+		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &it8213_ops,
 	};
 	/* Current IT8213 stuff is single port */
-- 
1.7.1

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