CKCTRL0
val = readl(priv->base + CKCTRL0);
writel(val, priv->base + CKCTRL0);
val = readl(priv->base + CKCTRL0);
writel(val, priv->base + CKCTRL0);
val = readl(priv->base + CKCTRL0);
writel(val, priv->base + CKCTRL0);
val = readl(priv->base + CKCTRL0);
writel(val, priv->base + CKCTRL0);