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alim15x3: skip DMA initialization completely on revs < 0x20 

Skip DMA initialization completely on revs < 0x20 by setting IDE_HFLAG_NO_DMA
host flag and resetting DMA host masks in alim15x3_init_one() (currently
ide_hwif_setup_dma() will try to obtain DMA base and setup PCI bus-mastering
but init_dma_ali15x3() will fail).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-04-26 22:25:21 +02:00
parent 73369d2a15
commit 6d36b95fe2
1 changed files with 4 additions and 2 deletions
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6
drivers/ide/pci/alim15x3.c
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@ -732,8 +732,6 @@ static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
static void __devinit init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
{
if (m5229_revision < 0x20)
return;
if (!hwif->channel)
outb(inb(dmabase + 2) & 0x60, dmabase + 2);
ide_setup_dma(hwif, dmabase);
@ -794,6 +792,10 @@ static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_dev
d.udma_mask = ATA_UDMA5;
else
d.udma_mask = ATA_UDMA6;
} else {
d.host_flags |= IDE_HFLAG_NO_DMA;
d.mwdma_mask = d.swdma_mask = 0;
}
if (idx == 0)