SFC_ICLR
writel_relaxed(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
writel(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
writel(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
writel_relaxed(reg, sfc->regbase + SFC_ICLR);