Commit df87f344 authored by Linus Torvalds's avatar Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  Revert "Revert "ide: try to use PIO Mode 0 during probe if possible""
  sis5513: fix PIO setup for ATAPI devices
parents 385c51d6 032665a2
......@@ -1046,6 +1046,15 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
if (port_ops && port_ops->init_dev)
port_ops->init_dev(drive);
}
ide_port_for_each_dev(i, drive, hwif) {
/*
* default to PIO Mode 0 before we figure out
* the most suited mode for the attached device
*/
if (port_ops && port_ops->set_pio_mode)
port_ops->set_pio_mode(drive, 0);
}
}
static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
......
......@@ -2,7 +2,7 @@
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
* Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (C) 2007 Bartlomiej Zolnierkiewicz
* Copyright (C) 2007-2009 Bartlomiej Zolnierkiewicz
*
* May be copied or modified under the terms of the GNU General Public License
*
......@@ -281,11 +281,13 @@ static void config_drive_art_rwp(ide_drive_t *drive)
pci_read_config_byte(dev, 0x4b, &reg4bh);
rw_prefetch = reg4bh & ~(0x11 << drive->dn);
if (drive->media == ide_disk)
rw_prefetch = 0x11 << drive->dn;
rw_prefetch |= 0x11 << drive->dn;
if ((reg4bh & (0x11 << drive->dn)) != rw_prefetch)
pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
if (reg4bh != rw_prefetch)
pci_write_config_byte(dev, 0x4b, rw_prefetch);
}
static void sis_set_pio_mode(ide_drive_t *drive, const u8 pio)
......
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