diff --git a/board/freescale/mpc8540ads/ddr.c b/board/freescale/mpc8540ads/ddr.c
index 7850794d64ff0f6339bc07c3bd4097e73421f73e..93d1100717f8fe5216574c9ccfca3bd05074a993 100644
--- a/board/freescale/mpc8540ads/ddr.c
+++ b/board/freescale/mpc8540ads/ddr.c
@@ -65,6 +65,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/board/freescale/mpc8544ds/ddr.c b/board/freescale/mpc8544ds/ddr.c
index 34f84a2656212e6655465e0289d2b9a897866fee..b8330eb961de4d03e2edf39d2219699656633de2 100644
--- a/board/freescale/mpc8544ds/ddr.c
+++ b/board/freescale/mpc8544ds/ddr.c
@@ -75,6 +75,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/board/freescale/mpc8560ads/ddr.c b/board/freescale/mpc8560ads/ddr.c
index 7850794d64ff0f6339bc07c3bd4097e73421f73e..93d1100717f8fe5216574c9ccfca3bd05074a993 100644
--- a/board/freescale/mpc8560ads/ddr.c
+++ b/board/freescale/mpc8560ads/ddr.c
@@ -65,6 +65,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/board/freescale/mpc8610hpcd/ddr.c b/board/freescale/mpc8610hpcd/ddr.c
index 414ac243a5b77c9818522b346d09a21c3be0e372..0117d136bbbbaaa984aa38f00ebd79511a1323c8 100644
--- a/board/freescale/mpc8610hpcd/ddr.c
+++ b/board/freescale/mpc8610hpcd/ddr.c
@@ -74,6 +74,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/board/freescale/mpc8641hpcn/ddr.c b/board/freescale/mpc8641hpcn/ddr.c
index 3789b5442ece667b5e9c999649d8cd8de43bfa60..8dc249b99dc89180a76ea891ed7d3e7c13b41273 100644
--- a/board/freescale/mpc8641hpcn/ddr.c
+++ b/board/freescale/mpc8641hpcn/ddr.c
@@ -162,4 +162,6 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 		}
 	}
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
 }
diff --git a/board/stxgp3/ddr.c b/board/stxgp3/ddr.c
index 7850794d64ff0f6339bc07c3bd4097e73421f73e..93d1100717f8fe5216574c9ccfca3bd05074a993 100644
--- a/board/stxgp3/ddr.c
+++ b/board/stxgp3/ddr.c
@@ -65,6 +65,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/board/stxssa/ddr.c b/board/stxssa/ddr.c
index 7850794d64ff0f6339bc07c3bd4097e73421f73e..93d1100717f8fe5216574c9ccfca3bd05074a993 100644
--- a/board/stxssa/ddr.c
+++ b/board/stxssa/ddr.c
@@ -65,6 +65,9 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 	 */
 	popts->write_data_delay = 3;
 
+	/* 2T timing enable */
+	popts->twoT_en = 1;
+
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed
diff --git a/cpu/mpc8xxx/ddr/options.c b/cpu/mpc8xxx/ddr/options.c
index af7f73a835ae4011709192da96444d9d0600b5f7..d4702d73bc99fd287d5e7e9cd030e0edb3dab51c 100644
--- a/cpu/mpc8xxx/ddr/options.c
+++ b/cpu/mpc8xxx/ddr/options.c
@@ -142,7 +142,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
 	 *	- number of components, number of active ranks
 	 *	- how much time you want to spend playing around
 	 */
-	popts->twoT_en = 1;
+	popts->twoT_en = 0;
 	popts->threeT_en = 0;
 
 	/*