PIO_XFER_ERR_IRQ
if (irqsts & PIO_XFER_ERR_IRQ) {
#define TRUE_IDE_IRQS (CARD_DETECT_IRQ | PIO_XFER_ERR_IRQ |\
cf_interrupt_enable(acdev, PIO_XFER_ERR_IRQ, 1);
cf_interrupt_enable(acdev, PIO_XFER_ERR_IRQ, 0);