mpc83xx: Cleanup usage of DDR constants

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/include/configs/MPC837XEMDS.h b/include/configs/MPC837XEMDS.h
index dc4d877..8c2af08 100644
--- a/include/configs/MPC837XEMDS.h
+++ b/include/configs/MPC837XEMDS.h
@@ -128,7 +128,10 @@
 #define CONFIG_SYS_DDR_SDRAM_BASE	CONFIG_SYS_DDR_BASE
 #define CONFIG_SYS_DDR_SDRAM_CLK_CNTL	DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05
 #define CONFIG_SYS_83XX_DDR_USES_CS0
-#define CONFIG_SYS_DDRCDR_VALUE	0x80080001 /* ODT 150ohm on SoC */
+#define CONFIG_SYS_DDRCDR_VALUE		(DDRCDR_DHC_EN \
+					| DDRCDR_ODT \
+					| DDRCDR_Q_DRN)
+					/* 0x80080001 */ /* ODT 150ohm on SoC */
 
 #undef CONFIG_DDR_ECC		/* support DDR ECC function */
 #undef CONFIG_DDR_ECC_CMD	/* Use DDR ECC user commands */
@@ -147,10 +150,11 @@
 #define CONFIG_SYS_DDR_SIZE		512 /* MB */
 #define CONFIG_SYS_DDR_CS0_BNDS	0x0000001f
 #define CONFIG_SYS_DDR_CS0_CONFIG	(CSCONFIG_EN \
-				| 0x00010000  /* ODT_WR to CSn */ \
-				| CSCONFIG_ROW_BIT_14 \
-				| CSCONFIG_COL_BIT_10)
-				/* 0x80010202 */
+			| CSCONFIG_ODT_RD_NEVER  /* ODT_RD to none */ \
+			| CSCONFIG_ODT_WR_ONLY_CURRENT  /* ODT_WR to CSn */ \
+			| CSCONFIG_ROW_BIT_14 \
+			| CSCONFIG_COL_BIT_10)
+			/* 0x80010202 */
 #define CONFIG_SYS_DDR_TIMING_3	0x00000000
 #define CONFIG_SYS_DDR_TIMING_0	((0 << TIMING_CFG0_RWT_SHIFT) \
 				| (0 << TIMING_CFG0_WRT_SHIFT) \