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ide: remove PIO "downgrade" quirk 

No need for it nowadays so remove quirk code from ide_get_best_pio_mode()
and IDE_HFLAG_PIO_DOWNGRADE host flag.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-26 17:36:36 +02:00
parent 00fe8b7ac2
commit 078fdf789c
5 changed files with 0 additions and 15 deletions
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10
drivers/ide/ide-lib.c
View File

@ -274,16 +274,6 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
if (overridden)
printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
drive->name);
/*
* Conservative "downgrade" for all pre-ATA2 drives
*/
if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_DOWNGRADE) == 0 &&
pio_mode && pio_mode < 4) {
pio_mode--;
printk(KERN_INFO "%s: applying conservative "
"PIO \"downgrade\"\n", drive->name);
}
}
if (pio_mode > max_mode)

1
drivers/ide/pci/amd74xx.c
View File

@ -219,7 +219,6 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
#define IDE_HFLAGS_AMD \
(IDE_HFLAG_PIO_NO_BLACKLIST | \
IDE_HFLAG_PIO_NO_DOWNGRADE | \
IDE_HFLAG_ABUSE_SET_DMA_MODE | \
IDE_HFLAG_POST_SET_MODE | \
IDE_HFLAG_IO_32BIT | \

1
drivers/ide/pci/via82cxxx.c
View File

@ -429,7 +429,6 @@ static const struct ide_port_info via82cxxx_chipset __devinitdata = {
.init_hwif = init_hwif_via82cxxx,
.enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
.host_flags = IDE_HFLAG_PIO_NO_BLACKLIST |
IDE_HFLAG_PIO_NO_DOWNGRADE |
IDE_HFLAG_ABUSE_SET_DMA_MODE |
IDE_HFLAG_POST_SET_MODE |
IDE_HFLAG_IO_32BIT,

1
drivers/ide/ppc/pmac.c
View File

@ -921,7 +921,6 @@ pmac_ide_do_resume(ide_hwif_t *hwif)
static const struct ide_port_info pmac_port_info = {
.chipset = ide_pmac,
.host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
IDE_HFLAG_PIO_NO_DOWNGRADE |
IDE_HFLAG_POST_SET_MODE |
IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
IDE_HFLAG_UNMASK_IRQS,

2
include/linux/ide.h
View File

@ -1027,8 +1027,6 @@ enum {
IDE_HFLAG_SINGLE = (1 << 1),
/* don't use legacy PIO blacklist */
IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2),
/* don't use conservative PIO "downgrade" */
IDE_HFLAG_PIO_NO_DOWNGRADE = (1 << 3),
/* use PIO8/9 for prefetch off/on */
IDE_HFLAG_ABUSE_PREFETCH = (1 << 4),
/* use PIO6/7 for fast-devsel off/on */