diff options
Diffstat (limited to 'drivers')
| -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 26f24802d3e..1da037f1394 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; |