PPC_CCBR
tmp = __raw_readl(PPC_CCBR(idx));
__raw_writel(tmp, PPC_CCBR(idx));
tmp = __raw_readl(PPC_CCBR(idx));
__raw_writel(tmp, PPC_CCBR(idx));
__raw_writel(__raw_readl(PPC_CCBR(idx)) | CCBR_DUC, PPC_CCBR(idx));
__raw_writel(__raw_readl(PPC_CCBR(i)) & ~CCBR_DUC, PPC_CCBR(i));
__raw_writel(__raw_readl(PPC_CCBR(i)) | CCBR_DUC, PPC_CCBR(i));