MXC_CCM_CLPCR
ccm_clpcr = imx_readl(ccm_base + MXC_CCM_CLPCR) &
imx_writel(ccm_clpcr, ccm_base + MXC_CCM_CLPCR);
val = readl(MXC_CCM_CLPCR);
writel(val, MXC_CCM_CLPCR);