pdc202xx_old: always enable burst mode

Alan has noticed that distros always enabled burst mode
(+ datasheet confirms that it is the right thing to do).

Thus fix pdc202xx_old host driver to do it unconditionally
and remove no longer needed CONFIG_PDC202XX_BURST option.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 043c34a..d2c4f06 100644 (file)
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -688,23 +688,6 @@ config BLK_DEV_PDC202XX_OLD
 
          If unsure, say N.
 
-config PDC202XX_BURST
-       bool "Special UDMA Feature"
-       depends on BLK_DEV_PDC202XX_OLD
-       help
-         This option causes the pdc202xx driver to enable UDMA modes on the
-         PDC202xx even when the PDC202xx BIOS has not done so.
-
-         It was originally designed for the PDC20246/Ultra33, whose BIOS will
-         only setup UDMA on the first two PDC20246 cards.  It has also been
-         used successfully on a PDC20265/Ultra100, allowing use of UDMA modes
-         when the PDC20265 BIOS has been disabled (for faster boot up).
-
-         Please read the comments at the top of
-         <file:drivers/ide/pci/pdc202xx_old.c>.
-
-         If unsure, say N.
-
 config BLK_DEV_PDC202XX_NEW
        tristate "PROMISE PDC202{68|69|70|71|75|76|77} support"
        select BLK_DEV_IDEDMA_PCI

diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index da43297..150422e 100644 (file)
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -3,26 +3,6 @@
  *  Copyright (C) 2006-2007            MontaVista Software, Inc.
  *  Copyright (C) 2007                 Bartlomiej Zolnierkiewicz
  *
- *  Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
- *  compiled into the kernel if you have more than one card installed.
- *  Note that BIOS v1.29 is reported to fix the problem.  Since this is
- *  safe chipset tuning, including this support is harmless
- *
- *  Promise Ultra66 cards with BIOS v1.11 this
- *  compiled into the kernel if you have more than one card installed.
- *
- *  Promise Ultra100 cards.
- *
- *  The latest chipset code will support the following ::
- *  Three Ultra33 controllers and 12 drives.
- *  8 are UDMA supported and 4 are limited to DMA mode 2 multi-word.
- *  The 8/4 ratio is a BIOS code limit by promise.
- *
- *  UNLESS you enable "CONFIG_PDC202XX_BURST"
- *
- */
-
-/*
  *  Portions Copyright (C) 1999 Promise Technology, Inc.
  *  Author: Frank Tiernan (frankt@promise.com)
  *  Released under terms of General Public License
@@ -344,7 +324,6 @@ static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
                (primary_mode & 1) ? "MASTER" : "PCI",
                (secondary_mode & 1) ? "MASTER" : "PCI" );
 
-#ifdef CONFIG_PDC202XX_BURST
        if (!(udma_speed_flag & 1)) {
                printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ",
                        hwif->cds->name, udma_speed_flag,
@@ -352,7 +331,6 @@ static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
                outb(udma_speed_flag | 1, dmabase | 0x1f);
                printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN");
        }
-#endif /* CONFIG_PDC202XX_BURST */
 
        ide_setup_dma(hwif, dmabase);
 }