* [PATCH] pata_it8213: add UDMA100 and UDMA133 support
@ 2011-10-13 16:11 Bartlomiej Zolnierkiewicz
0 siblings, 0 replies; only message in thread
From: Bartlomiej Zolnierkiewicz @ 2011-10-13 16:11 UTC (permalink / raw)
To: Jeff Garzik; +Cc: linux-ide, linux-kernel
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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 <bzolnier@gmail.com>
---
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(-)
Index: b/drivers/ata/pata_it8213.c
===================================================================
--- a/drivers/ata/pata_it8213.c
+++ 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 */
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