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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>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-10-11 23:54:01 +02:00
parent a6fe837ed6
commit 90986028c9
3 changed files with 20 additions and 30 deletions
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16
drivers/ide/pci/it8213.c
View File

@ -132,6 +132,11 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
u16 reg4042, reg4a;
u8 reg48, reg54, reg55;
if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
it8213_tune_pio(drive, speed - XFER_PIO_0);
return ide_config_drive_speed(drive, speed);
}
pci_read_config_word(dev, maslave, &reg4042);
pci_read_config_byte(dev, 0x48, &reg48);
pci_read_config_word(dev, 0x4a, &reg4a);
@ -151,12 +156,6 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
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;
}
@ -188,10 +187,7 @@ static int it8213_tune_chipset(ide_drive_t *drive, const u8 speed)
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
if (speed > XFER_PIO_4)
it8213_tune_pio(drive, it8213_dma_2_pio(speed));
else
it8213_tune_pio(drive, speed - XFER_PIO_0);
it8213_tune_pio(drive, it8213_dma_2_pio(speed));
return ide_config_drive_speed(drive, speed);
}

17
drivers/ide/pci/piix.c
View File

@ -1,5 +1,5 @@
/*
* linux/drivers/ide/pci/piix.c Version 0.51 Jul 6, 2007
* linux/drivers/ide/pci/piix.c Version 0.52 Jul 14, 2007
*
* Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
@ -242,6 +242,11 @@ static int piix_tune_chipset(ide_drive_t *drive, const u8 speed)
u16 reg4042, reg4a;
u8 reg48, reg54, reg55;
if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
piix_tune_pio(drive, speed - XFER_PIO_0);
return ide_config_drive_speed(drive, speed);
}
pci_read_config_word(dev, maslave, &reg4042);
sitre = (reg4042 & 0x4000) ? 1 : 0;
pci_read_config_byte(dev, 0x48, &reg48);
@ -259,11 +264,6 @@ static int piix_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;
}
@ -293,10 +293,7 @@ static int piix_tune_chipset(ide_drive_t *drive, const u8 speed)
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
if (speed > XFER_PIO_4)
piix_tune_pio(drive, piix_dma_2_pio(speed));
else
piix_tune_pio(drive, speed - XFER_PIO_0);
piix_tune_pio(drive, piix_dma_2_pio(speed));
return ide_config_drive_speed(drive, speed);
}

17
drivers/ide/pci/slc90e66.c
View File

@ -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, &reg4042);
sitre = (reg4042 & 0x4000) ? 1 : 0;
pci_read_config_word(dev, 0x44, &reg44);
@ -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);
}