diff --git a/include/configs/MPC8548CDS.h b/include/configs/MPC8548CDS.h
index bfd316cb945b6214b60a4b92e48c07817754fa88..687fe84850de385a765f5a3176521e8482273c75 100644
--- a/include/configs/MPC8548CDS.h
+++ b/include/configs/MPC8548CDS.h
@@ -41,7 +41,7 @@
 #define CONFIG_ENV_OVERWRITE
 #define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
 #define CONFIG_DDR_DLL			/* possible DLL fix needed */
-#define CONFIG_DDR_2T_TIMING		/* Sets the 2T timing bit */
+#undef CONFIG_DDR_2T_TIMING		/* Sets the 2T timing bit */
 
 #define CONFIG_DDR_ECC			/* only for ECC DDR module */
 #define CONFIG_ECC_INIT_VIA_DDRCONTROLLER	/* DDR controller or DMA? */