FIFO_ORUN
#define MASK_INTR_PIO (FIFO_URUN | FIFO_ORUN | CARD_CHANGE)
if (moxart_wait_for_status(host, FIFO_ORUN, &status)
writel(MASK_DATA | FIFO_URUN | FIFO_ORUN, host->base + REG_CLEAR);
if (status & (FIFO_ORUN | FIFO_URUN) && host->mrq)