From: Bartlomiej Zolnierkiewicz Subject: [PATCH] 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 --- drivers/ide/pci/alim15x3.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) Index: b/drivers/ide/pci/alim15x3.c =================================================================== --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -732,8 +732,6 @@ static void __devinit init_hwif_ali15x3 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(s 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)