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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-02-02 19:56:28 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-02-02 19:56:28 +0100
commit36e9dc469b1300d8bec6f2ab48b4556e2c4241ba (patch)
tree66d18834d7021c4dfad22311778c5c87967fd621 /drivers
parentae9458d6a0956aa21cb49e1251e35a8d4dacbe6e (diff)
dtc2278: fix ->io_32bit handling
On DTC2278 32-bit I/O has to be enabled for both devices on the port so always enable it during init time and disallow further changes. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/ide.c4
-rw-r--r--drivers/ide/legacy/dtc2278.c12
2 files changed, 6 insertions, 10 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index ab9ca2b5b66..fb0c47c8819 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -791,10 +791,6 @@ int set_io_32bit(ide_drive_t *drive, int arg)
return -EBUSY;
drive->io_32bit = arg;
-#ifdef CONFIG_BLK_DEV_DTC2278
- if (HWIF(drive)->chipset == ide_dtc2278)
- HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg;
-#endif /* CONFIG_BLK_DEV_DTC2278 */
spin_unlock_irq(&ide_lock);
diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c
index 611c9705a3a..092c04abbe7 100644
--- a/drivers/ide/legacy/dtc2278.c
+++ b/drivers/ide/legacy/dtc2278.c
@@ -84,12 +84,6 @@ static void dtc2278_set_pio_mode(ide_drive_t *drive, const u8 pio)
/* Actually we do - there is a data sheet available for the
Winbond but does anyone actually care */
}
-
- /*
- * 32bit I/O has to be enabled for *both* drives at the same time.
- */
- drive->io_32bit = 1;
- HWIF(drive)->drives[!drive->select.b.unit].io_32bit = 1;
}
static int __init dtc2278_probe(void)
@@ -123,18 +117,24 @@ static int __init dtc2278_probe(void)
local_irq_restore(flags);
hwif->serialized = 1;
+ hwif->no_io_32bit = 1; /* disallow ->io_32bit changes */
hwif->chipset = ide_dtc2278;
hwif->pio_mask = ATA_PIO4;
hwif->set_pio_mode = &dtc2278_set_pio_mode;
hwif->drives[0].no_unmask = 1;
hwif->drives[1].no_unmask = 1;
+ hwif->drives[0].io_32bit = 1;
+ hwif->drives[1].io_32bit = 1;
hwif->mate = mate;
mate->serialized = 1;
+ mate->no_io_32bit = 1;
mate->chipset = ide_dtc2278;
mate->pio_mask = ATA_PIO4;
mate->drives[0].no_unmask = 1;
mate->drives[1].no_unmask = 1;
+ mate->drives[0].io_32bit = 1;
+ mate->drives[1].io_32bit = 1;
mate->mate = hwif;
mate->channel = 1;