pata_it8213: add UDMA100 and UDMA133 support

PATCH New Bartlomiej Zolnierkiewicz 1 participant 1 message Oct 13, 2011 libata

lore

Share & tools

lore

Bartlomiej Zolnierkiewicz

author

2011-10-13 16:11 UTC #0 lore raw

PATCH 1/1 pata_it8213: add UDMA100 and UDMA133 support

From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] 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 <[email protected]>

---
earlier references:
https://lkml.org/lkml/2011/2/8/105
https://lkml.org/lkml/2009/11/25/324

 drivers/ata/pata_it8213.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

drivers/ata/pata_it8213.c +2 -2

Index: b/drivers/ata/pata_it8213.c
===================================================================
@@ -164,7 +164,7 @@ static void it8213_set_dmamode (struct a
 
 		/* 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_d
 		.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 */