+#define SDRAM_MCSTAT_SRMS_SF 0x40000000 /* Mem in self refresh */
+#define SDRAM_MCSTAT_IDLE_MASK 0x20000000 /* Mem self refresh stat mask */
+#define SDRAM_MCSTAT_IDLE_NOT 0x00000000 /* Mem contr not idle */
+#define SDRAM_MCSTAT_IDLE 0x20000000 /* Mem contr idle */