fsl-ddr: use the 1T timing as default configuration

For light loaded system, we use the 1T timing to gain better
memory performance, but for some heavily loaded system,
you have to add the 2T timing options to board files.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>

8 files changed, 21 insertions, 1 deletions

diff --git a/board/freescale/mpc8540ads/ddr.c b/board/freescale/mpc8540ads/ddr.c
index 7850794d6..93d110071 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 34f84a265..b8330eb96 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 7850794d6..93d110071 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 414ac243a..0117d136b 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 3789b5442..8dc249b99 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 7850794d6..93d110071 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 7850794d6..93d110071 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 af7f73a83..d4702d73b 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;
 
 	/*