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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:01 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:54:01 +0200 |
| commit | 90986028c98be10807bb6f48e883f33fa20e5499 (patch) | |
| tree | 0350e6fb27b98529222d1c5b501817349c163c42 /drivers/ide/pci/slc90e66.c | |
| parent | a6fe837ed63aa812bea029a24b7aafc72ba8de88 (diff) | |
| download | blackbird-op-linux-90986028c98be10807bb6f48e883f33fa20e5499.tar.gz blackbird-op-linux-90986028c98be10807bb6f48e883f33fa20e5499.zip | |
it8213/piix/slc90e66: don't change DMA settings when programming PIO
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/slc90e66.c')
| -rw-r--r-- | drivers/ide/pci/slc90e66.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c index 214d396fc31f..967b939e9d2e 100644 --- a/drivers/ide/pci/slc90e66.c +++ b/drivers/ide/pci/slc90e66.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/slc90e66.c Version 0.15 Jul 6, 2007 + * linux/drivers/ide/pci/slc90e66.c Version 0.16 Jul 14, 2007 * * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> @@ -110,6 +110,11 @@ static int slc90e66_tune_chipset(ide_drive_t *drive, const u8 speed) int u_speed = 0, u_flag = 1 << drive->dn; u16 reg4042, reg44, reg48, reg4a; + if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) { + slc90e66_tune_pio(drive, speed - XFER_PIO_0); + return ide_config_drive_speed(drive, speed); + } + pci_read_config_word(dev, maslave, ®4042); sitre = (reg4042 & 0x4000) ? 1 : 0; pci_read_config_word(dev, 0x44, ®44); @@ -125,11 +130,6 @@ static int slc90e66_tune_chipset(ide_drive_t *drive, const u8 speed) case XFER_MW_DMA_2: case XFER_MW_DMA_1: case XFER_SW_DMA_2: break; - case XFER_PIO_4: - case XFER_PIO_3: - case XFER_PIO_2: - case XFER_PIO_1: - case XFER_PIO_0: break; default: return -1; } @@ -149,10 +149,7 @@ static int slc90e66_tune_chipset(ide_drive_t *drive, const u8 speed) pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); } - if (speed > XFER_PIO_4) - slc90e66_tune_pio(drive, slc90e66_dma_2_pio(speed)); - else - slc90e66_tune_pio(drive, speed - XFER_PIO_0); + slc90e66_tune_pio(drive, slc90e66_dma_2_pio(speed)); return ide_config_drive_speed(drive, speed); } |
