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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-25 22:17:18 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-25 22:17:18 +0100
commitad4ba7dcef285c92a6856e0dd9feb780c1a79b87 (patch)
treed6bc703634e814c11775f609279420659f7be84a /drivers/ide/pci/pdc202xx_new.c
parent3071a9d00b8684899d93f368e670c4de0293df29 (diff)
downloadop-kernel-dev-ad4ba7dcef285c92a6856e0dd9feb780c1a79b87.zip
op-kernel-dev-ad4ba7dcef285c92a6856e0dd9feb780c1a79b87.tar.gz
pdc202xx_new: move PIO programming code to pdcnew_set_pio_mode()
* Move PIO programming code from pdcnew_set_mode() to pdcnew_set_pio_mode(). * Rename pdcnew_set_mode() to pdcnew_set_dma_mode(). There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/pdc202xx_new.c')
-rw-r--r--drivers/ide/pci/pdc202xx_new.c26
1 files changed, 10 insertions, 16 deletions
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index 2b4f44e4..79ba8ef 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -146,7 +146,7 @@ static struct udma_timing {
{ 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
};
-static void pdcnew_set_mode(ide_drive_t *drive, const u8 speed)
+static void pdcnew_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = HWIF(drive);
u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
@@ -177,7 +177,6 @@ static void pdcnew_set_mode(ide_drive_t *drive, const u8 speed)
set_indexed_reg(hwif, 0x12 + adj,
udma_timings[mode].reg12);
break;
-
case XFER_MW_DMA_2:
case XFER_MW_DMA_1:
case XFER_MW_DMA_0:
@@ -186,18 +185,6 @@ static void pdcnew_set_mode(ide_drive_t *drive, const u8 speed)
set_indexed_reg(hwif, 0x0f + adj,
mwdma_timings[mode].reg0f);
break;
- case XFER_PIO_4:
- case XFER_PIO_3:
- case XFER_PIO_2:
- case XFER_PIO_1:
- case XFER_PIO_0:
- set_indexed_reg(hwif, 0x0c + adj,
- pio_timings[mode].reg0c);
- set_indexed_reg(hwif, 0x0d + adj,
- pio_timings[mode].reg0d);
- set_indexed_reg(hwif, 0x13 + adj,
- pio_timings[mode].reg13);
- break;
default:
printk(KERN_ERR "pdc202xx_new: "
"Unknown speed %d ignored\n", speed);
@@ -212,7 +199,14 @@ static void pdcnew_set_mode(ide_drive_t *drive, const u8 speed)
static void pdcnew_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
- pdcnew_set_mode(drive, XFER_PIO_0 + pio);
+ ide_hwif_t *hwif = drive->hwif;
+ u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
+
+ if (max_dma_rate(hwif->pci_dev) == 4) {
+ set_indexed_reg(hwif, 0x0c + adj, pio_timings[pio].reg0c);
+ set_indexed_reg(hwif, 0x0d + adj, pio_timings[pio].reg0d);
+ set_indexed_reg(hwif, 0x13 + adj, pio_timings[pio].reg13);
+ }
}
static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
@@ -466,7 +460,7 @@ static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const cha
static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
{
hwif->set_pio_mode = &pdcnew_set_pio_mode;
- hwif->set_dma_mode = &pdcnew_set_mode;
+ hwif->set_dma_mode = &pdcnew_set_dma_mode;
hwif->quirkproc = &pdcnew_quirkproc;
hwif->resetproc = &pdcnew_reset;
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