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path: root/drivers/ide/pci/sc1200.c
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Diffstat (limited to 'drivers/ide/pci/sc1200.c')
-rw-r--r--drivers/ide/pci/sc1200.c32
1 files changed, 5 insertions, 27 deletions
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 79ecab689489..76f0868054a1 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -68,17 +68,6 @@ static unsigned short sc1200_get_pci_clock (void)
return pci_clock;
}
-extern char *ide_xfer_verbose (byte xfer_rate);
-
-/*
- * Set a new transfer mode at the drive
- */
-static int sc1200_set_xfer_mode (ide_drive_t *drive, byte mode)
-{
- printk("%s: sc1200_set_xfer_mode(%s)\n", drive->name, ide_xfer_verbose(mode));
- return ide_config_drive_speed(drive, mode);
-}
-
/*
* Here are the standard PIO mode 0-4 timings for each "format".
* Format-0 uses fast data reg timings, with slower command reg timings.
@@ -138,7 +127,7 @@ out:
return mask;
}
-static int sc1200_tune_chipset(ide_drive_t *drive, const u8 mode)
+static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
ide_hwif_t *hwif = HWIF(drive);
int unit = drive->select.b.unit;
@@ -146,17 +135,9 @@ static int sc1200_tune_chipset(ide_drive_t *drive, const u8 mode)
unsigned short pci_clock;
unsigned int basereg = hwif->channel ? 0x50 : 0x40;
- /*
- * Tell the drive to switch to the new mode; abort on failure.
- */
- if (sc1200_set_xfer_mode(drive, mode))
- return 1; /* failure */
-
pci_clock = sc1200_get_pci_clock();
/*
- * Now tune the chipset to match the drive:
- *
* Note that each DMA mode has several timings associated with it.
* The correct timing depends on the fast PCI clock freq.
*/
@@ -216,8 +197,6 @@ static int sc1200_tune_chipset(ide_drive_t *drive, const u8 mode)
} else {
pci_write_config_dword(hwif->pci_dev, basereg+12, timings);
}
-
- return 0; /* success */
}
/*
@@ -286,13 +265,12 @@ static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio)
if (mode != -1) {
printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
hwif->dma_off_quietly(drive);
- if (sc1200_tune_chipset(drive, mode) == 0)
+ if (ide_set_dma_mode(drive, mode) == 0)
hwif->dma_host_on(drive);
return;
}
- if (sc1200_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0)
- sc1200_tunepio(drive, pio);
+ sc1200_tunepio(drive, pio);
}
#ifdef CONFIG_PM
@@ -408,7 +386,7 @@ static void __devinit init_hwif_sc1200 (ide_hwif_t *hwif)
hwif->autodma = 1;
hwif->set_pio_mode = &sc1200_set_pio_mode;
- hwif->speedproc = &sc1200_tune_chipset;
+ hwif->set_dma_mode = &sc1200_set_dma_mode;
}
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x07;
@@ -423,7 +401,7 @@ static ide_pci_device_t sc1200_chipset __devinitdata = {
.init_hwif = init_hwif_sc1200,
.autodma = AUTODMA,
.bootable = ON_BOARD,
- .host_flags = IDE_HFLAG_ABUSE_DMA_MODES,
+ .host_flags = IDE_HFLAG_ABUSE_DMA_MODES | IDE_HFLAG_POST_SET_MODE,
.pio_mask = ATA_PIO4,
};