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ide: (hopefully) fix VDMA for CS5520

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* Set the correct hwif->dma_base for the second channel in
  ide_get_or_set_dma_base().

* Remove DMA enable code from cs5520_set_pio_mode(), this can
  be handled by the generic ->dma_host_on method now.

* Add VDMA check to ide_config_drive_speed().

* drive->using_dma was never enabled since cs5520 host driver's
  ->ide_dma_on method overrided the generic ->ide_dma_on (so
  __ide_dma_on() was never called, drive->using_dma was never set
  and VDMA was never used since it depends on drive->using_dma).

  Fix it by using ->dma_host_on method instead of ->ide_dma_on
  (also add matching ->dma_host_off method).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-01-26 20:12:59 +01:00
parent 29ec683f01
commit aea5d37560
3 changed files with 25 additions and 16 deletions
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10
drivers/ide/setup-pci.c
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@@ -165,13 +165,17 @@ static unsigned long ide_get_or_set_dma_base(const struct ide_port_info *d, ide_
dma_base = pci_resource_start(dev, baridx);
if (dma_base == 0)
if (dma_base == 0) {
printk(KERN_ERR "%s: DMA base is invalid\n", d->name);
return 0;
}
}
if ((d->host_flags & IDE_HFLAG_CS5520) == 0 && dma_base) {
if (hwif->channel)
dma_base += 8;
if ((d->host_flags & IDE_HFLAG_CS5520) == 0) {
u8 simplex_stat = 0;
dma_base += hwif->channel ? 8 : 0;
switch(dev->device) {
case PCI_DEVICE_ID_AL_M5219: