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| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 20:13:00 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 20:13:00 +0100 |
| commit | a530201afed5074dac69b29c519a1df59da97945 (patch) | |
| tree | db757157f6474910d1cde484f289d80c4e61dbc8 /drivers/ide/pci/cy82c693.c | |
| parent | ide: (hopefully) fix VDMA for CS5520 (diff) | |
| download | linux-dev-a530201afed5074dac69b29c519a1df59da97945.tar.xz linux-dev-a530201afed5074dac69b29c519a1df59da97945.zip | |
cy82c693: correct DMA modes clipping
* Mask device DMA masks by ATA_{S,M}WDMA2 in cy82c693_ide_dma_on().
* Remove clipping of DMA modes by id->tDMA in cy82c693_dma_enable():
- id->tDMA may not be defined on newer devices
- id->vendor6/id->tDMA word is in LE endianness
(cy82c693 seems to be Alpha specific though)
* Bump driver version.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/ide/pci/cy82c693.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index 1cd4e9cb0521..e7466f2bee7b 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/cy82c693.c Version 0.42 Oct 23, 2007 + * linux/drivers/ide/pci/cy82c693.c Version 0.43 Nov 7, 2007 * * Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator @@ -182,10 +182,7 @@ static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single) if (mode>2) /* make sure we set a valid mode */ mode = 2; - - if (mode > drive->id->tDMA) /* to be absolutly sure we have a valid mode */ - mode = drive->id->tDMA; - + index = (HWIF(drive)->channel==0) ? CY82_INDEX_CHANNEL0 : CY82_INDEX_CHANNEL1; #if CY82C693_DEBUG_LOGS @@ -250,7 +247,10 @@ static int cy82c693_ide_dma_on (ide_drive_t *drive) mmode = id->dma_mword & (id->dma_mword >> 8); smode = id->dma_1word & (id->dma_1word >> 8); - + + mmode &= ATA_MWDMA2; + smode &= ATA_SWDMA2; + if (mmode != 0) { /* enable multi */ cy82c693_dma_enable(drive, (mmode >> 1), 0); |