TIC
u32 tic = ravb_read(ndev, TIC);
ravb_write(ndev, tic & ~BIT(q), TIC);
ravb_modify(ndev, TIC, mask, mask);
ravb_write(ndev, 0, TIC);
ravb_write(ndev, 0, TIC);
ravb_write(ndev, TIC_FTE0, TIC);
ravb_write(ndev, TIC_FTE0 | TIC_FTE1 | TIC_TFUE, TIC);