HIX5HD2_PERI_CRG20
val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20);
writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20);
val = readl_relaxed(ctrl_base + HIX5HD2_PERI_CRG20);
writel_relaxed(val, ctrl_base + HIX5HD2_PERI_CRG20);