diff --git a/board/freescale/p2041rdb/ddr.c b/board/freescale/p2041rdb/ddr.c
index 3637093..6d9a5de 100644
--- a/board/freescale/p2041rdb/ddr.c
+++ b/board/freescale/p2041rdb/ddr.c
@@ -14,69 +14,91 @@
 #include <asm/fsl_ddr_dimm_params.h>
 #include <asm/fsl_law.h>
 
-typedef struct {
-	u32 datarate_mhz_low;
-	u32 datarate_mhz_high;
+struct board_specific_parameters {
 	u32 n_ranks;
+	u32 datarate_mhz_high;
 	u32 clk_adjust;
 	u32 wrlvl_start;
 	u32 cpo;
 	u32 write_data_delay;
 	u32 force_2T;
-} board_specific_parameters_t;
+};
 
 /*
+ * This table contains all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ *
  * ranges for parameters:
  *  wr_data_delay = 0-6
  *  clk adjust = 0-8
  *  cpo 2-0x1E (30)
  */
-const board_specific_parameters_t board_specific_parameters[] = {
+static const struct board_specific_parameters dimm0[] = {
 	/*
 	 * memory controller 0
-	 *  lo|  hi|  num|  clk| wrlvl | cpo  |wrdata|2T
-	 * mhz| mhz|ranks|adjst| start | delay|
+	 *   num|  hi|  clk| wrlvl | cpo  |wrdata|2T
+	 * ranks| mhz|adjst| start | delay|
 	 */
-	{    0,  750,    2,    3,     5,   0xff,    2,  0},
-	{  751, 1250,    2,    4,     6,   0xff,    2,  0},
-	{ 1251, 1350,    2,    5,     7,   0xff,    2,  0},
-	{ 1351, 1666,    2,    5,     8,   0xff,    2,  0},
+	{2,   750,    3,     5,   0xff,    2,  0},
+	{2,  1250,    4,     6,   0xff,    2,  0},
+	{2,  1350,    5,     7,   0xff,    2,  0},
+	{2,  1666,    5,     8,   0xff,    2,  0},
+	{}
 };
 
 void fsl_ddr_board_options(memctl_options_t *popts,
 				dimm_params_t *pdimm,
 				unsigned int ctrl_num)
 {
-	const board_specific_parameters_t *pbsp =
-				&board_specific_parameters[0];
-	u32 num_params = ARRAY_SIZE(board_specific_parameters);
-	u32 i;
+	const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
 	ulong ddr_freq;
 
+	if (ctrl_num) {
+		printf("Wrong parameter for controller number %d", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		return;
+
+	pbsp = dimm0;
+
 	/*
 	 * Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr
 	 * freqency and n_banks specified in board_specific_parameters table.
 	 */
 	ddr_freq = get_ddr_freq(0) / 1000000;
-	for (i = 0; i < num_params; i++) {
-		if (ddr_freq >= pbsp->datarate_mhz_low &&
-			ddr_freq <= pbsp->datarate_mhz_high &&
-			pdimm[0].n_ranks == pbsp->n_ranks) {
-			popts->cpo_override = pbsp->cpo;
-			popts->write_data_delay = pbsp->write_data_delay;
-			popts->clk_adjust = pbsp->clk_adjust;
-			popts->wrlvl_start = pbsp->wrlvl_start;
-			popts->twoT_en = pbsp->force_2T;
-			break;
+	while (pbsp->datarate_mhz_high) {
+		if (pbsp->n_ranks == pdimm->n_ranks) {
+			if (ddr_freq <= pbsp->datarate_mhz_high) {
+				popts->cpo_override = pbsp->cpo;
+				popts->write_data_delay =
+					pbsp->write_data_delay;
+				popts->clk_adjust = pbsp->clk_adjust;
+				popts->wrlvl_start = pbsp->wrlvl_start;
+				popts->twoT_en = pbsp->force_2T;
+				goto found;
+			}
+			pbsp_highest = pbsp;
 		}
 		pbsp++;
 	}
 
-	if (i == num_params) {
-		printf("Warning: board specific timing not found "
-			"for data rate %lu MT/s!\n", ddr_freq);
+	if (pbsp_highest) {
+		printf("Error: board specific timing not found "
+			"for data rate %lu MT/s!\n"
+			"Trying to use the highest speed (%u) parameters\n",
+			ddr_freq, pbsp_highest->datarate_mhz_high);
+		popts->cpo_override = pbsp_highest->cpo;
+		popts->write_data_delay = pbsp_highest->write_data_delay;
+		popts->clk_adjust = pbsp_highest->clk_adjust;
+		popts->wrlvl_start = pbsp_highest->wrlvl_start;
+		popts->twoT_en = pbsp_highest->force_2T;
+	} else {
+		panic("DIMM is not supported by this board");
 	}
 
+found:
 	/*
 	 * Factors to consider for half-strength driver enable:
 	 *	- number of DIMMs installed