diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide-cd.c | 7 | ||||
| -rw-r--r-- | drivers/ide/pci/piix.c | 4 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 88214943d00..5969cec58dc 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -687,8 +687,15 @@ static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 sta static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) { struct request *rq = HWGROUP(drive)->rq; + ide_hwif_t *hwif = HWIF(drive); int stat, err, sense_key; + /* We may have bogus DMA interrupts in PIO state here */ + if (HWIF(drive)->dma_status && hwif->atapi_irq_bogon) { + stat = hwif->INB(hwif->dma_status); + /* Should we force the bit as well ? */ + hwif->OUTB(stat, hwif->dma_status); + } /* Check for errors. */ stat = HWIF(drive)->INB(IDE_STATUS_REG); if (stat_ret) diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c index cdc3aab9ebc..b1e9a8eba6b 100644 --- a/drivers/ide/pci/piix.c +++ b/drivers/ide/pci/piix.c @@ -505,6 +505,10 @@ static void __devinit init_hwif_piix(ide_hwif_t *hwif) /* This is a painful system best to let it self tune for now */ return; } + /* ESB2 appears to generate spurious DMA interrupts in PIO mode + when in native mode */ + if (hwif->pci_dev->device == PCI_DEVICE_ID_INTEL_ESB2_18) + hwif->atapi_irq_bogon = 1; hwif->autodma = 0; hwif->tuneproc = &piix_tune_drive; |