OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ide-{floppy,tape,scsi}: fix register loading order when issuing packet command 

Load IDE_BCOUNTL_REG before IDE_BCOUNTH_REG when issuing packet command.

It shouldn't affect anything (just a usual paranoia to separate changes
which change the way in which hardware is accessed from code cleanups).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-01-25 22:17:13 +01:00
parent 3a6a3549af
commit 932aead6d2
3 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ide/ide-floppy.c
View File

@ -1071,8 +1071,8 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p
HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
/* Use PIO/DMA */
hwif->OUTB(dma, IDE_FEATURE_REG);
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
HWIF(drive)->OUTB(drive->select.all, IDE_SELECT_REG);
if (dma) { /* Begin DMA, if necessary */

2
drivers/ide/ide-tape.c
View File

@ -2174,8 +2174,8 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape
if (IDE_CONTROL_REG)
hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
hwif->OUTB(dma_ok ? 1 : 0, IDE_FEATURE_REG); /* Use PIO/DMA */
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
hwif->OUTB(drive->select.all, IDE_SELECT_REG);
if (dma_ok) /* Will begin DMA later */
set_bit(PC_DMA_IN_PROGRESS, &pc->flags);

2
drivers/scsi/ide-scsi.c
View File

@ -594,8 +594,8 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc)
HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
hwif->OUTB(dma, IDE_FEATURE_REG);
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
if (dma)
set_bit(PC_DMA_OK, &pc->flags);