diff options
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-iops.c | 2 | ||||
| -rw-r--r-- | drivers/ide/pci/cs5520.c | 29 | ||||
| -rw-r--r-- | drivers/ide/setup-pci.c | 10 |
3 files changed, 25 insertions, 16 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index c97c0719ddf..e3e5e39f490 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -799,7 +799,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) skip: #ifdef CONFIG_BLK_DEV_IDEDMA - if (speed >= XFER_SW_DMA_0) + if (speed >= XFER_SW_DMA_0 || (hwif->host_flags & IDE_HFLAG_VDMA)) hwif->dma_host_on(drive); else if (hwif->ide_dma_on) /* check if host supports DMA */ hwif->dma_off_quietly(drive); diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index d1a91bcb5b2..78058ca2ce7 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -71,7 +71,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) ide_hwif_t *hwif = HWIF(drive); struct pci_dev *pdev = hwif->pci_dev; int controller = drive->dn > 1 ? 1 : 0; - u8 reg; /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */ @@ -91,11 +90,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1), (cs5520_pio_clocks[pio].recovery << 4) | (cs5520_pio_clocks[pio].assert)); - - /* Set the DMA enable/disable flag */ - reg = inb(hwif->dma_base + 0x02 + 8*controller); - reg |= 1<<((drive->dn&1)+5); - outb(reg, hwif->dma_base + 0x02 + 8*controller); } static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) @@ -109,13 +103,23 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) * We wrap the DMA activate to set the vdma flag. This is needed * so that the IDE DMA layer issues PIO not DMA commands over the * DMA channel + * + * ATAPI is harder so disable it for now using IDE_HFLAG_NO_ATAPI_DMA */ - -static int cs5520_dma_on(ide_drive_t *drive) + +static void cs5520_dma_host_on(ide_drive_t *drive) { - /* ATAPI is harder so leave it for now */ - drive->vdma = 1; - return 0; + if (drive->using_dma) + drive->vdma = 1; + + ide_dma_host_on(drive); +} + +static void cs5520_dma_host_off(ide_drive_t *drive) +{ + drive->vdma = 0; + + ide_dma_host_off(drive); } static void __devinit init_hwif_cs5520(ide_hwif_t *hwif) @@ -126,7 +130,8 @@ static void __devinit init_hwif_cs5520(ide_hwif_t *hwif) if (hwif->dma_base == 0) return; - hwif->ide_dma_on = &cs5520_dma_on; + hwif->dma_host_on = &cs5520_dma_host_on; + hwif->dma_host_off = &cs5520_dma_host_off; } #define DECLARE_CS_DEV(name_str) \ diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index d2cd5a3d38f..bbfdf7e0f18 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -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: |