+/* Define the bits in register CCSR */
+#if defined(CONFIG_MX51)
+#define MXC_CCM_CCSR_LP_APM (0x1 << 9)
+#elif defined(CONFIG_MX53)
+#define MXC_CCM_CCSR_LP_APM (0x1 << 10)
+#define MXC_CCM_CCSR_PLL4_SW_CLK_SEL (0x1 << 9)
+#endif
+#define MXC_CCM_CCSR_STEP_SEL_OFFSET 7
+#define MXC_CCM_CCSR_STEP_SEL_MASK (0x3 << 7)
+#define MXC_CCM_CCSR_STEP_SEL(v) (((v) & 0x3) << 7)
+#define MXC_CCM_CCSR_STEP_SEL_RD(r) (((r) >> 7) & 0x3)
+#define MXC_CCM_CCSR_PLL2_DIV_PODF_OFFSET 5
+#define MXC_CCM_CCSR_PLL2_DIV_PODF_MASK (0x3 << 5)
+#define MXC_CCM_CCSR_PLL2_DIV_PODF(v) (((v) & 0x3) << 5)
+#define MXC_CCM_CCSR_PLL2_DIV_PODF_RD(r) (((r) >> 5) & 0x3)
+#define MXC_CCM_CCSR_PLL3_DIV_PODF_OFFSET 3
+#define MXC_CCM_CCSR_PLL3_DIV_PODF_MASK (0x3 << 3)
+#define MXC_CCM_CCSR_PLL3_DIV_PODF(v) (((v) & 0x3) << 3)
+#define MXC_CCM_CCSR_PLL3_DIV_PODF_RD(r) (((r) >> 3) & 0x3)
+#define MXC_CCM_CCSR_PLL1_SW_CLK_SEL (0x1 << 2)
+#define MXC_CCM_CCSR_PLL2_SW_CLK_SEL (0x1 << 1)
+#define MXC_CCM_CCSR_PLL3_SW_CLK_SEL 0x1
+