REFO_DIVSW_EN
!(v & (REFO_ACTIVE | REFO_DIVSW_EN)),
writel(REFO_ON | REFO_DIVSW_EN, PIC32_SET(refo->ctrl_reg));
err = readl_poll_timeout_atomic(refo->ctrl_reg, v, !(v & REFO_DIVSW_EN),