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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-07-20 01:11:56 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-07-20 01:11:56 +0200
commit1c164acf50146d8a82caed642951390e073620f1 (patch)
treeb83f3f02719406dfd9bdd477c9a03bfa4bd747b4
parentserverworks: always tune PIO (diff)
downloadlinux-1c164acf50146d8a82caed642951390e073620f1.tar.xz
linux-1c164acf50146d8a82caed642951390e073620f1.zip
serverworks: fix DMA
The driver used to depend on BIOS settings for deciding whether it is OK to use DMA. However it seems that BIOS doesn't always handle all cases correctly so just let IDE core to decide about this. It should be a safe thing to do now, after the driver went through heavy bugfixing. Thanks for bugreport and testing the patch goes out to Sven Niedner. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/pci/serverworks.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index 011245246b1f..abc3cd58aaa9 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/serverworks.c Version 0.21 Jun 16 2007
+ * linux/drivers/ide/pci/serverworks.c Version 0.22 Jun 27 2007
*
* Copyright (C) 1998-2000 Michel Aubry
* Copyright (C) 1998-2000 Andrzej Krzysztofowicz
@@ -387,8 +387,6 @@ static u8 __devinit ata66_svwks(ide_hwif_t *hwif)
static void __devinit init_hwif_svwks (ide_hwif_t *hwif)
{
- u8 dma_stat = 0;
-
if (!hwif->irq)
hwif->irq = hwif->channel ? 15 : 14;
@@ -419,9 +417,7 @@ static void __devinit init_hwif_svwks (ide_hwif_t *hwif)
if (!noautodma)
hwif->autodma = 1;
- dma_stat = inb(hwif->dma_status);
- hwif->drives[0].autodma = (dma_stat & 0x20);
- hwif->drives[1].autodma = (dma_stat & 0x40);
+ hwif->drives[0].autodma = hwif->drives[1].autodma = 1;
}
static int __devinit init_setup_svwks (struct pci_dev *dev, ide_pci_device_t *d)