+
+#define DDRCMD_EMR_OCD(pr, ohm) ( \
+ (1 << 24) | /* MDDRC Command Request */ \
+ (1 << 16) | /* MODE Reg BA[2:0] */ \
+ (0 << 12) | /* Outputs 0=Enabled */ \
+ (0 << 11) | /* RDQS */ \
+ (1 << 10) | /* DQS# */ \
+ (pr << 7) | /* OCD prog 7=deflt,0=exit */ \
+ /* ODT Rtt[1:0] 0=0,1=75,2=150,3=50 */ \
+ ((ohm & 0x2) << 5)| /* Rtt1 */ \
+ (0 << 3) | /* additive posted CAS# */ \
+ ((ohm & 0x1) << 2)| /* Rtt0 */ \
+ (0 << 0) | /* Output Drive Strength */ \
+ (0 << 0)) /* DLL Enable 0=Normal */
+
+#define CONFIG_SYS_DDRCMD_OCD_DEFAULT DDRCMD_EMR_OCD(7, 0)
+#define CONFIG_SYS_ELPIDA_OCD_EXIT DDRCMD_EMR_OCD(0, 0)
+
+#define DDRCMD_MODE_REG(cas, wr) ( \
+ (1 << 24) | /* MDDRC Command Request */ \
+ (0 << 16) | /* MODE Reg BA[2:0] */ \
+ ((wr-1) << 9)| /* Write Recovery */ \
+ (cas << 4) | /* CAS */ \
+ (0 << 3) | /* Burst Type:0=Sequential,1=Interleaved */ \
+ (2 << 0)) /* 4 or 8 Burst Length:0x2=4 0x3=8 */
+
+#define CONFIG_SYS_MICRON_INIT_DEV_OP DDRCMD_MODE_REG(3, 3)
+#define CONFIG_SYS_ELPIDA_INIT_DEV_OP DDRCMD_MODE_REG(4, 4)
+#define CONFIG_SYS_ELPIDA_RES_DLL (DDRCMD_MODE_REG(4, 4) | (1 << 8))