* Return the revision of the Winbond bridge
* which this function is part of.
*/
-static unsigned int sl82c105_bridge_revision(struct pci_dev *dev)
+static u8 sl82c105_bridge_revision(struct pci_dev *dev)
{
struct pci_dev *bridge;
*/
static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- unsigned int rev;
-
DBG(("init_hwif_sl82c105(hwif: ide%d)\n", hwif->index));
if (!hwif->dma_base)
return;
- rev = sl82c105_bridge_revision(dev);
- if (rev <= 5) {
- /*
- * Never ever EVER under any circumstances enable
- * DMA when the bridge is this old.
- */
- printk(" %s: Winbond W83C553 bridge revision %d, "
- "BM-DMA disabled\n", hwif->name, rev);
- return;
- }
-
- hwif->mwdma_mask = ATA_MWDMA2;
-
hwif->dma_lost_irq = &sl82c105_dma_lost_irq;
hwif->dma_start = &sl82c105_dma_start;
hwif->ide_dma_end = &sl82c105_dma_end;
#endif
IDE_HFLAG_NO_AUTODMA,
.pio_mask = ATA_PIO5,
+ .mwdma_mask = ATA_MWDMA2,
};
static int __devinit sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- return ide_setup_pci_device(dev, &sl82c105_chipset);
+ struct ide_port_info d = sl82c105_chipset;
+ u8 rev = sl82c105_bridge_revision(dev);
+
+ if (rev <= 5) {
+ /*
+ * Never ever EVER under any circumstances enable
+ * DMA when the bridge is this old.
+ */
+ printk(KERN_INFO "W82C105_IDE: Winbond W83C553 bridge "
+ "revision %d, BM-DMA disabled\n", rev);
+ d.init_hwif = NULL;
+ d.mwdma_mask = 0;
+ }
+
+ return ide_setup_pci_device(dev, &d);
}
static const struct pci_device_id sl82c105_pci_tbl[] = {