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sis5513: backport short cables support from pata_sis.c 

Backport short cables support from pata_sis.c.

This patch allows UDMA > 2 modes on ASUS A6K.

Thanks to testing this patch goes out to Jiri Stavinoha.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-07-09 23:17:58 +02:00
parent 95ba8c17bc
commit f2befd9e80
1 changed files with 24 additions and 1 deletions
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25
drivers/ide/pci/sis5513.c
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@ -1,5 +1,5 @@
/*
* linux/drivers/ide/pci/sis5513.c Version 0.20 Mar 4, 2007
* linux/drivers/ide/pci/sis5513.c Version 0.25 Jun 10, 2007
*
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
@ -796,10 +796,33 @@ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const c
return 0;
}
struct sis_laptop {
u16 device;
u16 subvendor;
u16 subdevice;
};
static const struct sis_laptop sis_laptop[] = {
/* devid, subvendor, subdev */
{ 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
/* end marker */
{ 0, }
};
static u8 __devinit ata66_sis5513(ide_hwif_t *hwif)
{
struct pci_dev *pdev = hwif->pci_dev;
const struct sis_laptop *lap = &sis_laptop[0];
u8 ata66 = 0;
while (lap->device) {
if (lap->device == pdev->device &&
lap->subvendor == pdev->subsystem_vendor &&
lap->subdevice == pdev->subsystem_device)
return ATA_CBL_PATA40_SHORT;
lap++;
}
if (chipset_family >= ATA_133) {
u16 regw = 0;
u16 reg_addr = hwif->channel ? 0x52: 0x50;