CPUX_IDX_GLOBAL_CTRL
val = mtk_cpux_readl(CPUX_IDX_GLOBAL_CTRL, &to);
mtk_cpux_writel(val, CPUX_IDX_GLOBAL_CTRL, &to);
val = mtk_cpux_readl(CPUX_IDX_GLOBAL_CTRL, &to);
mtk_cpux_writel(val | CPUX_ENABLE, CPUX_IDX_GLOBAL_CTRL, &to);