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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:53:59 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-10-11 23:53:59 +0200 |
| commit | 3160d5416f39da9d9221fec7cb9d64399b706bbc (patch) | |
| tree | b722e5610224bae3647453a0043e40c98932190c | |
| parent | 7670df73fba373d19471a2ebedb3302ea0607be0 (diff) | |
| download | linux-3160d5416f39da9d9221fec7cb9d64399b706bbc.tar.gz linux-3160d5416f39da9d9221fec7cb9d64399b706bbc.tar.bz2 linux-3160d5416f39da9d9221fec7cb9d64399b706bbc.zip | |
sis5513: add ->udma_filter method for chipset_family >= ATA_133
* Add sis5513_ata133_udma_filter() for chipset_family >= ATA_133,
use it to filter UDMA6 mode if ATA133 bit is disabled.
* Remove no longer needed UDMA6 limiting logic from sis5513_tune_chipset().
* Bump driver version.
There should be no functionality changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/pci/sis5513.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c index 26f24802d3e8..1da037f1394e 100644 --- a/drivers/ide/pci/sis5513.c +++ b/drivers/ide/pci/sis5513.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/sis5513.c Version 0.25 Jun 10, 2007 + * linux/drivers/ide/pci/sis5513.c Version 0.26 Jul 7, 2007 * * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer @@ -582,9 +582,6 @@ static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed) regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4; regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8; } else { - /* if ATA133 disable, we should not set speed above UDMA5 */ - if (speed > XFER_UDMA_5) - speed = XFER_UDMA_5; regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4; regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8; } @@ -640,6 +637,20 @@ static int sis5513_config_xfer_rate(ide_drive_t *drive) return -1; } +static u8 sis5513_ata133_udma_filter(ide_drive_t *drive) +{ + struct pci_dev *dev = drive->hwif->pci_dev; + int drive_pci; + u32 reg54 = 0, regdw = 0; + + pci_read_config_dword(dev, 0x54, ®54); + drive_pci = ((reg54 & 0x40000000) ? 0x70 : 0x40) + drive->dn * 4; + pci_read_config_dword(dev, drive_pci, ®dw); + + /* if ATA133 disable, we should not set speed above UDMA5 */ + return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5; +} + /* Chip detection and general config */ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const char *name) { @@ -847,6 +858,9 @@ static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif) hwif->tuneproc = &sis5513_tuneproc; hwif->speedproc = &sis5513_tune_chipset; + if (chipset_family >= ATA_133) + hwif->udma_filter = sis5513_ata133_udma_filter; + if (!(hwif->dma_base)) { hwif->drives[0].autotune = 1; hwif->drives[1].autotune = 1; |