diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
index 8132e68..20c7db0 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
@@ -448,7 +448,8 @@
 
 #if defined(CONFIG_FSL_DDR2)
 	if (lowest_good_caslat < 4) {
-		additive_latency = picos_to_mclk(tRCD_ps) - lowest_good_caslat;
+		additive_latency = (picos_to_mclk(tRCD_ps) > lowest_good_caslat)
+			? picos_to_mclk(tRCD_ps) - lowest_good_caslat : 0;
 		if (mclk_to_picos(additive_latency) > tRCD_ps) {
 			additive_latency = picos_to_mclk(tRCD_ps);
 			debug("setting additive_latency to %u because it was "
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c
index 89dc479..4dc748b 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c
@@ -26,14 +26,15 @@
 		dimm_params_t *pdimm,
 		unsigned int ctrl_num);
 
-typedef struct {
+struct dynamic_odt {
 	unsigned int odt_rd_cfg;
 	unsigned int odt_wr_cfg;
 	unsigned int odt_rtt_norm;
 	unsigned int odt_rtt_wr;
-} dynamic_odt_t;
+};
 
-static const dynamic_odt_t single_Q[4] = {
+#ifdef CONFIG_FSL_DDR3
+static const struct dynamic_odt single_Q[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_CS_AND_OTHER_DIMM,
@@ -60,7 +61,7 @@
 	}
 };
 
-static const dynamic_odt_t single_D[4] = {
+static const struct dynamic_odt single_D[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_ALL,
@@ -77,7 +78,7 @@
 	{0, 0, 0, 0}
 };
 
-static const dynamic_odt_t single_S[4] = {
+static const struct dynamic_odt single_S[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_ALL,
@@ -89,7 +90,7 @@
 	{0, 0, 0, 0},
 };
 
-static const dynamic_odt_t dual_DD[4] = {
+static const struct dynamic_odt dual_DD[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_SAME_DIMM,
@@ -116,7 +117,7 @@
 	}
 };
 
-static const dynamic_odt_t dual_DS[4] = {
+static const struct dynamic_odt dual_DS[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_SAME_DIMM,
@@ -137,7 +138,7 @@
 	},
 	{0, 0, 0, 0}
 };
-static const dynamic_odt_t dual_SD[4] = {
+static const struct dynamic_odt dual_SD[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_OTHER_DIMM,
 		FSL_DDR_ODT_ALL,
@@ -159,7 +160,7 @@
 	}
 };
 
-static const dynamic_odt_t dual_SS[4] = {
+static const struct dynamic_odt dual_SS[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_OTHER_DIMM,
 		FSL_DDR_ODT_ALL,
@@ -176,7 +177,7 @@
 	{0, 0, 0, 0}
 };
 
-static const dynamic_odt_t dual_D0[4] = {
+static const struct dynamic_odt dual_D0[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_SAME_DIMM,
@@ -193,7 +194,7 @@
 	{0, 0, 0, 0}
 };
 
-static const dynamic_odt_t dual_0D[4] = {
+static const struct dynamic_odt dual_0D[4] = {
 	{0, 0, 0, 0},
 	{0, 0, 0, 0},
 	{	/* cs2 */
@@ -210,7 +211,7 @@
 	}
 };
 
-static const dynamic_odt_t dual_S0[4] = {
+static const struct dynamic_odt dual_S0[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_CS,
@@ -223,7 +224,7 @@
 
 };
 
-static const dynamic_odt_t dual_0S[4] = {
+static const struct dynamic_odt dual_0S[4] = {
 	{0, 0, 0, 0},
 	{0, 0, 0, 0},
 	{	/* cs2 */
@@ -236,7 +237,7 @@
 
 };
 
-static const dynamic_odt_t odt_unknown[4] = {
+static const struct dynamic_odt odt_unknown[4] = {
 	{	/* cs0 */
 		FSL_DDR_ODT_NEVER,
 		FSL_DDR_ODT_CS,
@@ -262,7 +263,218 @@
 		DDR3_RTT_OFF
 	}
 };
+#else	/* CONFIG_FSL_DDR3 */
+static const struct dynamic_odt single_Q[4] = {
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0}
+};
+
+static const struct dynamic_odt single_D[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_ALL,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs1 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0}
+};
+
+static const struct dynamic_odt single_S[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_ALL,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+};
+
+static const struct dynamic_odt dual_DD[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs1 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	},
+	{	/* cs2 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs3 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	}
+};
+
+static const struct dynamic_odt dual_DS[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs1 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	},
+	{	/* cs2 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0}
+};
+
+static const struct dynamic_odt dual_SD[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{	/* cs2 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs3 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	}
+};
+
+static const struct dynamic_odt dual_SS[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{	/* cs2 */
+		FSL_DDR_ODT_OTHER_DIMM,
+		FSL_DDR_ODT_OTHER_DIMM,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0}
+};
+
+static const struct dynamic_odt dual_D0[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_ALL,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs1 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0}
+};
+
+static const struct dynamic_odt dual_0D[4] = {
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{	/* cs2 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_ALL,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs3 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	}
+};
 
+static const struct dynamic_odt dual_S0[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_CS,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{0, 0, 0, 0}
+
+};
+
+static const struct dynamic_odt dual_0S[4] = {
+	{0, 0, 0, 0},
+	{0, 0, 0, 0},
+	{	/* cs2 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_CS,
+		DDR2_RTT_150_OHM,
+		DDR2_RTT_OFF
+	},
+	{0, 0, 0, 0}
+
+};
+
+static const struct dynamic_odt odt_unknown[4] = {
+	{	/* cs0 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_CS,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs1 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	},
+	{	/* cs2 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_CS,
+		DDR2_RTT_75_OHM,
+		DDR2_RTT_OFF
+	},
+	{	/* cs3 */
+		FSL_DDR_ODT_NEVER,
+		FSL_DDR_ODT_NEVER,
+		DDR2_RTT_OFF,
+		DDR2_RTT_OFF
+	}
+};
+#endif
 unsigned int populate_memctl_options(int all_DIMMs_registered,
 			memctl_options_t *popts,
 			dimm_params_t *pdimm,
@@ -271,7 +483,7 @@
 	unsigned int i;
 	char buffer[HWCONFIG_BUFFER_SIZE];
 	char *buf = NULL;
-	const dynamic_odt_t *pdodt = odt_unknown;
+	const struct dynamic_odt *pdodt = odt_unknown;
 	ulong ddr_freq;
 
 	/*
@@ -337,7 +549,7 @@
 
 	/* Pick chip-select local options. */
 	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
-#if defined(CONFIG_FSL_DDR3)
+#if defined(CONFIG_FSL_DDR3) || defined(CONFIG_FSL_DDR2)
 		popts->cs_local_opts[i].odt_rd_cfg = pdodt[i].odt_rd_cfg;
 		popts->cs_local_opts[i].odt_wr_cfg = pdodt[i].odt_wr_cfg;
 		popts->cs_local_opts[i].odt_rtt_norm = pdodt[i].odt_rtt_norm;
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index 5b6e8d9..93639ba 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -31,6 +31,11 @@
 #define DDR3_RTT_20_OHM		4 /* RTT_Nom = RZQ/12 */
 #define DDR3_RTT_30_OHM		5 /* RTT_Nom = RZQ/8 */
 
+#define DDR2_RTT_OFF		0
+#define DDR2_RTT_75_OHM		1
+#define DDR2_RTT_150_OHM	2
+#define DDR2_RTT_50_OHM		3
+
 #if defined(CONFIG_FSL_DDR1)
 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR	(1)
 typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr
index c1ee0a6..abfb7f1 100644
--- a/doc/README.fsl-ddr
+++ b/doc/README.fsl-ddr
@@ -170,3 +170,55 @@
 
 Reference http://www.xrosstalkmag.com/mag_issues/xrosstalk_oct08_final.pdf
 	  http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf
+
+
+Table for ODT for DDR2
+======================
+Two slots system
++-----------------------+----------+---------------+-----------------------------+-----------------------------+
+|     Configuration     |          |DRAM controller|           Slot 1            |            Slot 2           |
++-----------+-----------+----------+-------+-------+--------------+--------------+--------------+--------------+
+|           |           |          |       |       |     Rank 1   |     Rank 2   |   Rank 1     |    Rank 2    |
++  Slot 1   |   Slot 2  |Write/Read| Write | Read  |-------+------+-------+------+-------+------+-------+------+
+|           |           |          |       |       | Write | Read | Write | Read | Write | Read | Write | Read |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 1  |  off  | 150   | off   | off  | off   | off  | 75    | 75   | off   | off  |
+| Dual Rank | Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 2  |  off  | 150   | 75    | 75   | off   | off  | off   | off  | off   | off  |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 1  |  off  | 150   | off   | off  | off   | off  | 75    | 75   |       |      |
+| Dual Rank |Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 2  |  off  | 150   | 75    | 75   | off   | off  | off   | off  |       |      |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 1  |  off  | 150   | off   | off  |       |      | 75    | 75   | off   | off  |
+|Single Rank| Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 2  |  off  | 150   | 75    | 75   |       |      | off   | off  | off   | off  |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 1  |  off  | 150   | off   | off  |       |      | 75    | 75   |       |      |
+|Single Rank|Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|           |           |  Slot 2  |  off  | 150   | 75    | 75   |       |      | off   | off  |       |      |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+| Dual Rank |   Empty   |  Slot 1  |  off  | 75    | 150   | off  | off   | off  |       |      |       |      |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|   Empty   | Dual Rank |  Slot 2  |  off  | 75    |       |      |       |      | 150   | off  | off   | off  |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|Single Rank|   Empty   |  Slot 1  |  off  | 75    | 150   | off  |       |      |       |      |       |      |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|   Empty   |Single Rank|  Slot 2  |  off  | 75    |       |      |       |      | 150   | off  |       |      |
++-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+
+Single slot system
++-------------+------------+---------------+-----------------------------+
+|             |            |DRAM controller|     Rank 1   |    Rank 2    |
+|Configuration| Write/Read |-------+-------+-------+------+-------+------+
+|             |            | Write | Read  | Write | Read | Write | Read |
++-------------+------------+-------+-------+-------+------+-------+------+
+|             |   R1       | off   | 75    | 150   | off  | off   | off  |
+|  Dual Rank  |------------+-------+-------+-------+------+-------+------+
+|             |   R2       | off   | 75    | 150   | off  | off   | off  |
++-------------+------------+-------+-------+-------+------+-------+------+
+| Single Rank |   R1       | off   | 75    | 150   | off  |
++-------------+------------+-------+-------+-------+------+
+
+Reference http://www.samsung.com/global/business/semiconductor/products/dram/downloads/applicationnote/ddr2_odt_control_200603.pdf
+