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ide: ide_config_drive_speed() bugfixes 

* Use ->OUTBSYNC instead of ->OUTB when writing command register
  (needed for scc_pata and pmac host drivers).

* Don't check DRDY bit of the status register on ATAPI devices
  (ATAPI devices are free to ignore DRDY bit).

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Cc: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-08-20 22:42:56 +02:00
parent a5b7e70d78
commit adcd33d41b
1 changed files with 2 additions and 2 deletions
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4
drivers/ide/ide-iops.c
View File

@ -828,7 +828,7 @@ int ide_config_drive_speed (ide_drive_t *drive, u8 speed)
hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG);
hwif->OUTB(speed, IDE_NSECTOR_REG);
hwif->OUTB(SETFEATURES_XFER, IDE_FEATURE_REG);
hwif->OUTB(WIN_SETFEATURES, IDE_COMMAND_REG);
hwif->OUTBSYNC(drive, WIN_SETFEATURES, IDE_COMMAND_REG);
if ((IDE_CONTROL_REG) && (drive->quirk_list == 2))
hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
udelay(1);
@ -855,7 +855,7 @@ int ide_config_drive_speed (ide_drive_t *drive, u8 speed)
*/
for (i = 0; i < 10; i++) {
udelay(1);
if (OK_STAT((stat = hwif->INB(IDE_STATUS_REG)), DRIVE_READY, BUSY_STAT|DRQ_STAT|ERR_STAT)) {
if (OK_STAT((stat = hwif->INB(IDE_STATUS_REG)), drive->ready_stat, BUSY_STAT|DRQ_STAT|ERR_STAT)) {
error = 0;
break;
}