diff --git a/drivers/ddr/fsl/arm_ddr_gen3.c b/drivers/ddr/fsl/arm_ddr_gen3.c
index c139da6..7160da4 100644
--- a/drivers/ddr/fsl/arm_ddr_gen3.c
+++ b/drivers/ddr/fsl/arm_ddr_gen3.c
@@ -222,7 +222,7 @@ step2:
 	bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK)
 			>> SDRAM_CFG_DBW_SHIFT);
 	timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
-		(get_ddr_freq(0) >> 20)) << 1;
+		(get_ddr_freq(ctrl_num) >> 20)) << 1;
 	total_gb_size_per_controller >>= 4;	/* shift down to gb size */
 	debug("total %d GB\n", total_gb_size_per_controller);
 	debug("Need to wait up to %d * 10ms\n", timeout);
diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c
index b3477f0..713c3ed 100644
--- a/drivers/ddr/fsl/ctrl_regs.c
+++ b/drivers/ddr/fsl/ctrl_regs.c
@@ -17,8 +17,6 @@
 #include <fsl_immap.h>
 #include <asm/io.h>
 
-unsigned int picos_to_mclk(unsigned int picos);
-
 /*
  * Determine Rtt value.
  *
@@ -78,10 +76,11 @@ static inline int fsl_ddr_get_rtt(void)
  *       16 for <= 2933MT/s
  *       18 for higher
  */
-static inline unsigned int compute_cas_write_latency(void)
+static inline unsigned int compute_cas_write_latency(
+				const unsigned int ctrl_num)
 {
 	unsigned int cwl;
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 	if (mclk_ps >= 1250)
 		cwl = 9;
 	else if (mclk_ps >= 1070)
@@ -111,10 +110,11 @@ static inline unsigned int compute_cas_write_latency(void)
  *       11 if 0.935ns > tCK >= 0.833ns
  *       12 if 0.833ns > tCK >= 0.75ns
  */
-static inline unsigned int compute_cas_write_latency(void)
+static inline unsigned int compute_cas_write_latency(
+				const unsigned int ctrl_num)
 {
 	unsigned int cwl;
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 
 	if (mclk_ps >= 2500)
 		cwl = 5;
@@ -287,7 +287,8 @@ static inline int avoid_odt_overlap(const dimm_params_t *dimm_params)
  * Avoid writing for DDR I.  The new PQ38 DDR controller
  * dreams up non-zero default values to be backwards compatible.
  */
-static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
+static void set_timing_cfg_0(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
 				const memctl_options_t *popts,
 				const dimm_params_t *dimm_params)
 {
@@ -306,7 +307,7 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 	/* Mode register set cycle time (tMRD). */
 	unsigned char tmrd_mclk;
 #if defined(CONFIG_SYS_FSL_DDR4) || defined(CONFIG_SYS_FSL_DDR3)
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 #endif
 
 #ifdef CONFIG_SYS_FSL_DDR4
@@ -314,15 +315,15 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 	int txp = max((int)mclk_ps * 4, 6000); /* unit=ps */
 	trwt_mclk = 2;
 	twrt_mclk = 1;
-	act_pd_exit_mclk = picos_to_mclk(txp);
+	act_pd_exit_mclk = picos_to_mclk(ctrl_num, txp);
 	pre_pd_exit_mclk = act_pd_exit_mclk;
 	/*
 	 * MRS_CYC = max(tMRD, tMOD)
 	 * tMRD = 8nCK, tMOD = max(24nCK, 15ns)
 	 */
-	tmrd_mclk = max(24U, picos_to_mclk(15000));
+	tmrd_mclk = max(24U, picos_to_mclk(ctrl_num, 15000));
 #elif defined(CONFIG_SYS_FSL_DDR3)
-	unsigned int data_rate = get_ddr_freq(0);
+	unsigned int data_rate = get_ddr_freq(ctrl_num);
 	int txp;
 	unsigned int ip_rev;
 	int odt_overlap;
@@ -344,7 +345,8 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 		 * tMRD = 4nCK (8nCK for RDIMM)
 		 * tMOD = max(12nCK, 15ns)
 		 */
-		tmrd_mclk = max((unsigned int)12, picos_to_mclk(15000));
+		tmrd_mclk = max((unsigned int)12,
+				picos_to_mclk(ctrl_num, 15000));
 	} else {
 		/*
 		 * MRS_CYC = tMRD
@@ -388,7 +390,7 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 		taxpd_mclk = 1;
 	} else {
 		/* act_pd_exit_mclk = tXARD, see above */
-		act_pd_exit_mclk = picos_to_mclk(txp);
+		act_pd_exit_mclk = picos_to_mclk(ctrl_num, txp);
 		/* Mode register MR0[A12] is '1' - fast exit */
 		pre_pd_exit_mclk = act_pd_exit_mclk;
 		taxpd_mclk = 1;
@@ -424,11 +426,12 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr,
 #endif	/* !defined(CONFIG_SYS_FSL_DDR1) */
 
 /* DDR SDRAM Timing Configuration 3 (TIMING_CFG_3) */
-static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr,
-			       const memctl_options_t *popts,
-			       const common_timing_params_t *common_dimm,
-			       unsigned int cas_latency,
-			       unsigned int additive_latency)
+static void set_timing_cfg_3(const unsigned int ctrl_num,
+			     fsl_ddr_cfg_regs_t *ddr,
+			     const memctl_options_t *popts,
+			     const common_timing_params_t *common_dimm,
+			     unsigned int cas_latency,
+			     unsigned int additive_latency)
 {
 	/* Extended precharge to activate interval (tRP) */
 	unsigned int ext_pretoact = 0;
@@ -447,18 +450,18 @@ static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr,
 	/* Control Adjust */
 	unsigned int cntl_adj = 0;
 
-	ext_pretoact = picos_to_mclk(common_dimm->trp_ps) >> 4;
-	ext_acttopre = picos_to_mclk(common_dimm->tras_ps) >> 4;
-	ext_acttorw = picos_to_mclk(common_dimm->trcd_ps) >> 4;
+	ext_pretoact = picos_to_mclk(ctrl_num, common_dimm->trp_ps) >> 4;
+	ext_acttopre = picos_to_mclk(ctrl_num, common_dimm->tras_ps) >> 4;
+	ext_acttorw = picos_to_mclk(ctrl_num, common_dimm->trcd_ps) >> 4;
 	ext_caslat = (2 * cas_latency - 1) >> 4;
 	ext_add_lat = additive_latency >> 4;
 #ifdef CONFIG_SYS_FSL_DDR4
-	ext_refrec = (picos_to_mclk(common_dimm->trfc1_ps) - 8) >> 4;
+	ext_refrec = (picos_to_mclk(ctrl_num, common_dimm->trfc1_ps) - 8) >> 4;
 #else
-	ext_refrec = (picos_to_mclk(common_dimm->trfc_ps) - 8) >> 4;
+	ext_refrec = (picos_to_mclk(ctrl_num, common_dimm->trfc_ps) - 8) >> 4;
 	/* ext_wrrec only deals with 16 clock and above, or 14 with OTF */
 #endif
-	ext_wrrec = (picos_to_mclk(common_dimm->twr_ps) +
+	ext_wrrec = (picos_to_mclk(ctrl_num, common_dimm->twr_ps) +
 		(popts->otf_burst_chop_en ? 2 : 0)) >> 4;
 
 	ddr->timing_cfg_3 = (0
@@ -475,10 +478,11 @@ static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr,
 }
 
 /* DDR SDRAM Timing Configuration 1 (TIMING_CFG_1) */
-static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
-			       const memctl_options_t *popts,
-			       const common_timing_params_t *common_dimm,
-			       unsigned int cas_latency)
+static void set_timing_cfg_1(const unsigned int ctrl_num,
+			     fsl_ddr_cfg_regs_t *ddr,
+			     const memctl_options_t *popts,
+			     const common_timing_params_t *common_dimm,
+			     unsigned int cas_latency)
 {
 	/* Precharge-to-activate interval (tRP) */
 	unsigned char pretoact_mclk;
@@ -510,9 +514,9 @@ static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
 		1, 2, 3, 4, 5, 6, 7, 8, 10, 10, 12, 12, 14, 14, 0, 0};
 #endif
 
-	pretoact_mclk = picos_to_mclk(common_dimm->trp_ps);
-	acttopre_mclk = picos_to_mclk(common_dimm->tras_ps);
-	acttorw_mclk = picos_to_mclk(common_dimm->trcd_ps);
+	pretoact_mclk = picos_to_mclk(ctrl_num, common_dimm->trp_ps);
+	acttopre_mclk = picos_to_mclk(ctrl_num, common_dimm->tras_ps);
+	acttorw_mclk = picos_to_mclk(ctrl_num, common_dimm->trcd_ps);
 
 	/*
 	 * Translate CAS Latency to a DDR controller field value:
@@ -547,19 +551,19 @@ static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
 #endif
 
 #ifdef CONFIG_SYS_FSL_DDR4
-	refrec_ctrl = picos_to_mclk(common_dimm->trfc1_ps) - 8;
-	wrrec_mclk = picos_to_mclk(common_dimm->twr_ps);
-	acttoact_mclk = max(picos_to_mclk(common_dimm->trrds_ps), 4U);
-	wrtord_mclk = max(2U, picos_to_mclk(2500));
+	refrec_ctrl = picos_to_mclk(ctrl_num, common_dimm->trfc1_ps) - 8;
+	wrrec_mclk = picos_to_mclk(ctrl_num, common_dimm->twr_ps);
+	acttoact_mclk = max(picos_to_mclk(ctrl_num, common_dimm->trrds_ps), 4U);
+	wrtord_mclk = max(2U, picos_to_mclk(ctrl_num, 2500));
 	if ((wrrec_mclk < 1) || (wrrec_mclk > 24))
 		printf("Error: WRREC doesn't support %d clocks\n", wrrec_mclk);
 	else
 		wrrec_mclk = wrrec_table[wrrec_mclk - 1];
 #else
-	refrec_ctrl = picos_to_mclk(common_dimm->trfc_ps) - 8;
-	wrrec_mclk = picos_to_mclk(common_dimm->twr_ps);
-	acttoact_mclk = picos_to_mclk(common_dimm->trrd_ps);
-	wrtord_mclk = picos_to_mclk(common_dimm->twtr_ps);
+	refrec_ctrl = picos_to_mclk(ctrl_num, common_dimm->trfc_ps) - 8;
+	wrrec_mclk = picos_to_mclk(ctrl_num, common_dimm->twr_ps);
+	acttoact_mclk = picos_to_mclk(ctrl_num, common_dimm->trrd_ps);
+	wrtord_mclk = picos_to_mclk(ctrl_num, common_dimm->twtr_ps);
 	if ((wrrec_mclk < 1) || (wrrec_mclk > 16))
 		printf("Error: WRREC doesn't support %d clocks\n", wrrec_mclk);
 	else
@@ -602,11 +606,12 @@ static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
 }
 
 /* DDR SDRAM Timing Configuration 2 (TIMING_CFG_2) */
-static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
-			       const memctl_options_t *popts,
-			       const common_timing_params_t *common_dimm,
-			       unsigned int cas_latency,
-			       unsigned int additive_latency)
+static void set_timing_cfg_2(const unsigned int ctrl_num,
+			     fsl_ddr_cfg_regs_t *ddr,
+			     const memctl_options_t *popts,
+			     const common_timing_params_t *common_dimm,
+			     unsigned int cas_latency,
+			     unsigned int additive_latency)
 {
 	/* Additive latency */
 	unsigned char add_lat_mclk;
@@ -623,7 +628,7 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 	/* Window for four activates (tFAW) */
 	unsigned short four_act;
 #ifdef CONFIG_SYS_FSL_DDR3
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 #endif
 
 	/* FIXME add check that this must be less than acttorw_mclk */
@@ -641,13 +646,13 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 #elif defined(CONFIG_SYS_FSL_DDR2)
 	wr_lat = cas_latency - 1;
 #else
-	wr_lat = compute_cas_write_latency();
+	wr_lat = compute_cas_write_latency(ctrl_num);
 #endif
 
 #ifdef CONFIG_SYS_FSL_DDR4
-	rd_to_pre = picos_to_mclk(7500);
+	rd_to_pre = picos_to_mclk(ctrl_num, 7500);
 #else
-	rd_to_pre = picos_to_mclk(common_dimm->trtp_ps);
+	rd_to_pre = picos_to_mclk(ctrl_num, common_dimm->trtp_ps);
 #endif
 	/*
 	 * JEDEC has some min requirements for tRTP
@@ -665,19 +670,20 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 	wr_data_delay = popts->write_data_delay;
 #ifdef CONFIG_SYS_FSL_DDR4
 	cpo = 0;
-	cke_pls = max(3U, picos_to_mclk(5000));
+	cke_pls = max(3U, picos_to_mclk(ctrl_num, 5000));
 #elif defined(CONFIG_SYS_FSL_DDR3)
 	/*
 	 * cke pulse = max(3nCK, 7.5ns) for DDR3-800
 	 *             max(3nCK, 5.625ns) for DDR3-1066, 1333
 	 *             max(3nCK, 5ns) for DDR3-1600, 1866, 2133
 	 */
-	cke_pls = max(3U, picos_to_mclk(mclk_ps > 1870 ? 7500 :
-				       (mclk_ps > 1245 ? 5625 : 5000)));
+	cke_pls = max(3U, picos_to_mclk(ctrl_num, mclk_ps > 1870 ? 7500 :
+					(mclk_ps > 1245 ? 5625 : 5000)));
 #else
 	cke_pls = FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR;
 #endif
-	four_act = picos_to_mclk(popts->tfaw_window_four_activates_ps);
+	four_act = picos_to_mclk(ctrl_num,
+				 popts->tfaw_window_four_activates_ps);
 
 	ddr->timing_cfg_2 = (0
 		| ((add_lat_mclk & 0xf) << 28)
@@ -818,7 +824,8 @@ static void set_ddr_sdram_cfg(fsl_ddr_cfg_regs_t *ddr,
 }
 
 /* DDR SDRAM control configuration 2 (DDR_SDRAM_CFG_2) */
-static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_cfg_2(const unsigned int ctrl_num,
+			       fsl_ddr_cfg_regs_t *ddr,
 			       const memctl_options_t *popts,
 			       const unsigned int unq_mrs_en)
 {
@@ -865,7 +872,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 #endif
 
 #if (CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7)
-	slow = get_ddr_freq(0) < 1249000000;
+	slow = get_ddr_freq(ctrl_num) < 1249000000;
 #endif
 
 	if (popts->registered_dimm_en) {
@@ -915,7 +922,8 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr,
 
 #ifdef CONFIG_SYS_FSL_DDR4
 /* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */
-static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode_2(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
 				const memctl_options_t *popts,
 				const common_timing_params_t *common_dimm,
 				const unsigned int unq_mrs_en)
@@ -926,10 +934,10 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
 	unsigned int wr_crc = 0;	/* Disable */
 	unsigned int rtt_wr = 0;	/* Rtt_WR - dynamic ODT off */
 	unsigned int srt = 0;	/* self-refresh temerature, normal range */
-	unsigned int cwl = compute_cas_write_latency() - 9;
+	unsigned int cwl = compute_cas_write_latency(ctrl_num) - 9;
 	unsigned int mpr = 0;	/* serial */
 	unsigned int wc_lat;
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 
 	if (popts->rtt_override)
 		rtt_wr = popts->rtt_wr_override_value;
@@ -1002,7 +1010,8 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
 }
 #elif defined(CONFIG_SYS_FSL_DDR3)
 /* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */
-static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode_2(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
 				const memctl_options_t *popts,
 				const common_timing_params_t *common_dimm,
 				const unsigned int unq_mrs_en)
@@ -1013,7 +1022,7 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
 	unsigned int rtt_wr = 0;	/* Rtt_WR - dynamic ODT off */
 	unsigned int srt = 0;	/* self-refresh temerature, normal range */
 	unsigned int asr = 0;	/* auto self-refresh disable */
-	unsigned int cwl = compute_cas_write_latency() - 5;
+	unsigned int cwl = compute_cas_write_latency(ctrl_num) - 5;
 	unsigned int pasr = 0;	/* partial array self refresh disable */
 
 	if (popts->rtt_override)
@@ -1077,7 +1086,8 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
 
 #else /* for DDR2 and DDR1 */
 /* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */
-static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode_2(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
 				const memctl_options_t *popts,
 				const common_timing_params_t *common_dimm,
 				const unsigned int unq_mrs_en)
@@ -1144,7 +1154,8 @@ static void set_ddr_sdram_mode_9(fsl_ddr_cfg_regs_t *ddr,
 }
 
 /* DDR SDRAM Mode configuration 10 (DDR_SDRAM_MODE_10) */
-static void set_ddr_sdram_mode_10(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode_10(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
 				const memctl_options_t *popts,
 				const common_timing_params_t *common_dimm,
 				const unsigned int unq_mrs_en)
@@ -1152,7 +1163,7 @@ static void set_ddr_sdram_mode_10(fsl_ddr_cfg_regs_t *ddr,
 	int i;
 	unsigned short esdmode6 = 0;	/* Extended SDRAM mode 6 */
 	unsigned short esdmode7 = 0;	/* Extended SDRAM mode 7 */
-	unsigned int tccdl_min = picos_to_mclk(common_dimm->tccdl_ps);
+	unsigned int tccdl_min = picos_to_mclk(ctrl_num, common_dimm->tccdl_ps);
 
 	esdmode6 = ((tccdl_min - 4) & 0x7) << 10;
 
@@ -1196,14 +1207,15 @@ static void set_ddr_sdram_mode_10(fsl_ddr_cfg_regs_t *ddr,
 #endif
 
 /* DDR SDRAM Interval Configuration (DDR_SDRAM_INTERVAL) */
-static void set_ddr_sdram_interval(fsl_ddr_cfg_regs_t *ddr,
-			       const memctl_options_t *popts,
-			       const common_timing_params_t *common_dimm)
+static void set_ddr_sdram_interval(const unsigned int ctrl_num,
+				fsl_ddr_cfg_regs_t *ddr,
+				const memctl_options_t *popts,
+				const common_timing_params_t *common_dimm)
 {
 	unsigned int refint;	/* Refresh interval */
 	unsigned int bstopre;	/* Precharge interval */
 
-	refint = picos_to_mclk(common_dimm->refresh_rate_ps);
+	refint = picos_to_mclk(ctrl_num, common_dimm->refresh_rate_ps);
 
 	bstopre = popts->bstopre;
 
@@ -1217,7 +1229,8 @@ static void set_ddr_sdram_interval(fsl_ddr_cfg_regs_t *ddr,
 
 #ifdef CONFIG_SYS_FSL_DDR4
 /* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */
-static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode(const unsigned int ctrl_num,
+			       fsl_ddr_cfg_regs_t *ddr,
 			       const memctl_options_t *popts,
 			       const common_timing_params_t *common_dimm,
 			       unsigned int cas_latency,
@@ -1292,7 +1305,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
 	 * 1=fast exit DLL on (tXP)
 	 */
 
-	wr_mclk = picos_to_mclk(common_dimm->twr_ps);
+	wr_mclk = picos_to_mclk(ctrl_num, common_dimm->twr_ps);
 	if (wr_mclk <= 24) {
 		wr = wr_table[wr_mclk - 10];
 	} else {
@@ -1387,7 +1400,8 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
 
 #elif defined(CONFIG_SYS_FSL_DDR3)
 /* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */
-static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode(const unsigned int ctrl_num,
+			       fsl_ddr_cfg_regs_t *ddr,
 			       const memctl_options_t *popts,
 			       const common_timing_params_t *common_dimm,
 			       unsigned int cas_latency,
@@ -1466,7 +1480,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
 	 */
 	dll_on = 1;
 
-	wr_mclk = picos_to_mclk(common_dimm->twr_ps);
+	wr_mclk = picos_to_mclk(ctrl_num, common_dimm->twr_ps);
 	if (wr_mclk <= 16) {
 		wr = wr_table[wr_mclk - 5];
 	} else {
@@ -1582,7 +1596,8 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
 #else /* !CONFIG_SYS_FSL_DDR3 */
 
 /* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */
-static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
+static void set_ddr_sdram_mode(const unsigned int ctrl_num,
+			       fsl_ddr_cfg_regs_t *ddr,
 			       const memctl_options_t *popts,
 			       const common_timing_params_t *common_dimm,
 			       unsigned int cas_latency,
@@ -1654,7 +1669,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
 #if defined(CONFIG_SYS_FSL_DDR1)
 	wr = 0;       /* Historical */
 #elif defined(CONFIG_SYS_FSL_DDR2)
-	wr = picos_to_mclk(common_dimm->twr_ps);
+	wr = picos_to_mclk(ctrl_num, common_dimm->twr_ps);
 #endif
 	dll_res = 0;
 	mode = 0;
@@ -1842,15 +1857,16 @@ static void set_timing_cfg_6(fsl_ddr_cfg_regs_t *ddr)
 	debug("FSLDDR: timing_cfg_6 = 0x%08x\n", ddr->timing_cfg_6);
 }
 
-static void set_timing_cfg_7(fsl_ddr_cfg_regs_t *ddr,
-			const common_timing_params_t *common_dimm)
+static void set_timing_cfg_7(const unsigned int ctrl_num,
+			     fsl_ddr_cfg_regs_t *ddr,
+			     const common_timing_params_t *common_dimm)
 {
 	unsigned int txpr, tcksre, tcksrx;
 	unsigned int cke_rst, cksre, cksrx, par_lat, cs_to_cmd;
 
-	txpr = max(5U, picos_to_mclk(common_dimm->trfc1_ps + 10000));
-	tcksre = max(5U, picos_to_mclk(10000));
-	tcksrx = max(5U, picos_to_mclk(10000));
+	txpr = max(5U, picos_to_mclk(ctrl_num, common_dimm->trfc1_ps + 10000));
+	tcksre = max(5U, picos_to_mclk(ctrl_num, 10000));
+	tcksrx = max(5U, picos_to_mclk(ctrl_num, 10000));
 	par_lat = 0;
 	cs_to_cmd = 0;
 
@@ -1883,14 +1899,15 @@ static void set_timing_cfg_7(fsl_ddr_cfg_regs_t *ddr,
 	debug("FSLDDR: timing_cfg_7 = 0x%08x\n", ddr->timing_cfg_7);
 }
 
-static void set_timing_cfg_8(fsl_ddr_cfg_regs_t *ddr,
+static void set_timing_cfg_8(const unsigned int ctrl_num,
+			     fsl_ddr_cfg_regs_t *ddr,
 			     const memctl_options_t *popts,
 			     const common_timing_params_t *common_dimm,
 			     unsigned int cas_latency)
 {
 	unsigned int rwt_bg, wrt_bg, rrt_bg, wwt_bg;
 	unsigned int acttoact_bg, wrtord_bg, pre_all_rec;
-	unsigned int tccdl = picos_to_mclk(common_dimm->tccdl_ps);
+	unsigned int tccdl = picos_to_mclk(ctrl_num, common_dimm->tccdl_ps);
 	unsigned int wr_lat = ((ddr->timing_cfg_2 & 0x00780000) >> 19) +
 			      ((ddr->timing_cfg_2 & 0x00040000) >> 14);
 
@@ -1914,8 +1931,8 @@ static void set_timing_cfg_8(fsl_ddr_cfg_regs_t *ddr,
 		wwt_bg = tccdl - 4;
 	}
 
-	acttoact_bg = picos_to_mclk(common_dimm->trrdl_ps);
-	wrtord_bg = max(4U, picos_to_mclk(7500));
+	acttoact_bg = picos_to_mclk(ctrl_num, common_dimm->trrdl_ps);
+	wrtord_bg = max(4U, picos_to_mclk(ctrl_num, 7500));
 	if (popts->otf_burst_chop_en)
 		wrtord_bg += 2;
 
@@ -2147,7 +2164,8 @@ check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr)
 }
 
 unsigned int
-compute_fsl_memctl_config_regs(const memctl_options_t *popts,
+compute_fsl_memctl_config_regs(const unsigned int ctrl_num,
+			       const memctl_options_t *popts,
 			       fsl_ddr_cfg_regs_t *ddr,
 			       const common_timing_params_t *common_dimm,
 			       const dimm_params_t *dimm_params,
@@ -2319,14 +2337,14 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
 	set_ddr_eor(ddr, popts);
 
 #if !defined(CONFIG_SYS_FSL_DDR1)
-	set_timing_cfg_0(ddr, popts, dimm_params);
+	set_timing_cfg_0(ctrl_num, ddr, popts, dimm_params);
 #endif
 
-	set_timing_cfg_3(ddr, popts, common_dimm, cas_latency,
+	set_timing_cfg_3(ctrl_num, ddr, popts, common_dimm, cas_latency,
 			 additive_latency);
-	set_timing_cfg_1(ddr, popts, common_dimm, cas_latency);
-	set_timing_cfg_2(ddr, popts, common_dimm,
-				cas_latency, additive_latency);
+	set_timing_cfg_1(ctrl_num, ddr, popts, common_dimm, cas_latency);
+	set_timing_cfg_2(ctrl_num, ddr, popts, common_dimm,
+			 cas_latency, additive_latency);
 
 	set_ddr_cdr1(ddr, popts);
 	set_ddr_cdr2(ddr, popts);
@@ -2338,15 +2356,15 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
 	if ((ip_rev > 0x40700) && (popts->cswl_override != 0))
 		ddr->debug[18] = popts->cswl_override;
 
-	set_ddr_sdram_cfg_2(ddr, popts, unq_mrs_en);
-	set_ddr_sdram_mode(ddr, popts, common_dimm,
-				cas_latency, additive_latency, unq_mrs_en);
-	set_ddr_sdram_mode_2(ddr, popts, common_dimm, unq_mrs_en);
+	set_ddr_sdram_cfg_2(ctrl_num, ddr, popts, unq_mrs_en);
+	set_ddr_sdram_mode(ctrl_num, ddr, popts, common_dimm,
+			   cas_latency, additive_latency, unq_mrs_en);
+	set_ddr_sdram_mode_2(ctrl_num, ddr, popts, common_dimm, unq_mrs_en);
 #ifdef CONFIG_SYS_FSL_DDR4
 	set_ddr_sdram_mode_9(ddr, popts, common_dimm, unq_mrs_en);
-	set_ddr_sdram_mode_10(ddr, popts, common_dimm, unq_mrs_en);
+	set_ddr_sdram_mode_10(ctrl_num, ddr, popts, common_dimm, unq_mrs_en);
 #endif
-	set_ddr_sdram_interval(ddr, popts, common_dimm);
+	set_ddr_sdram_interval(ctrl_num, ddr, popts, common_dimm);
 	set_ddr_data_init(ddr);
 	set_ddr_sdram_clk_cntl(ddr, popts);
 	set_ddr_init_addr(ddr);
@@ -2356,8 +2374,8 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
 #ifdef CONFIG_SYS_FSL_DDR4
 	set_ddr_sdram_cfg_3(ddr, popts);
 	set_timing_cfg_6(ddr);
-	set_timing_cfg_7(ddr, common_dimm);
-	set_timing_cfg_8(ddr, popts, common_dimm, cas_latency);
+	set_timing_cfg_7(ctrl_num, ddr, common_dimm);
+	set_timing_cfg_8(ctrl_num, ddr, popts, common_dimm, cas_latency);
 	set_timing_cfg_9(ddr);
 	set_ddr_dq_mapping(ddr, dimm_params);
 #endif
diff --git a/drivers/ddr/fsl/ddr1_dimm_params.c b/drivers/ddr/fsl/ddr1_dimm_params.c
index 7df27b9..7f1c3af 100644
--- a/drivers/ddr/fsl/ddr1_dimm_params.c
+++ b/drivers/ddr/fsl/ddr1_dimm_params.c
@@ -228,10 +228,10 @@ compute_derated_DDR1_CAS_latency(unsigned int mclk_ps)
  *
  * FIXME: use #define for the retvals
  */
-unsigned int
-ddr_compute_dimm_parameters(const ddr1_spd_eeprom_t *spd,
-			     dimm_params_t *pdimm,
-			     unsigned int dimm_number)
+unsigned int ddr_compute_dimm_parameters(const unsigned int ctrl_num,
+					 const ddr1_spd_eeprom_t *spd,
+					 dimm_params_t *pdimm,
+					 unsigned int dimm_number)
 {
 	unsigned int retval;
 
@@ -311,16 +311,16 @@ ddr_compute_dimm_parameters(const ddr1_spd_eeprom_t *spd,
 					  & ~(1 << pdimm->caslat_x_minus_1));
 
 	/* Compute CAS latencies below that defined by SPD */
-	pdimm->caslat_lowest_derated
-		= compute_derated_DDR1_CAS_latency(get_memory_clk_period_ps());
+	pdimm->caslat_lowest_derated = compute_derated_DDR1_CAS_latency(
+					get_memory_clk_period_ps(ctrl_num));
 
 	/* Compute timing parameters */
 	pdimm->trcd_ps = spd->trcd * 250;
 	pdimm->trp_ps = spd->trp * 250;
 	pdimm->tras_ps = spd->tras * 1000;
 
-	pdimm->twr_ps = mclk_to_picos(3);
-	pdimm->twtr_ps = mclk_to_picos(1);
+	pdimm->twr_ps = mclk_to_picos(ctrl_num, 3);
+	pdimm->twtr_ps = mclk_to_picos(ctrl_num, 1);
 	pdimm->trfc_ps = compute_trfc_ps_from_spd(0, spd->trfc);
 
 	pdimm->trrd_ps = spd->trrd * 250;
@@ -335,7 +335,7 @@ ddr_compute_dimm_parameters(const ddr1_spd_eeprom_t *spd,
 	pdimm->tdh_ps
 		= convert_bcd_hundredths_to_cycle_time_ps(spd->data_hold);
 
-	pdimm->trtp_ps = mclk_to_picos(2);	/* By the book. */
+	pdimm->trtp_ps = mclk_to_picos(ctrl_num, 2);	/* By the book. */
 	pdimm->tdqsq_max_ps = spd->tdqsq * 10;
 	pdimm->tqhs_ps = spd->tqhs * 10;
 
diff --git a/drivers/ddr/fsl/ddr2_dimm_params.c b/drivers/ddr/fsl/ddr2_dimm_params.c
index d865df7..49cc1a0 100644
--- a/drivers/ddr/fsl/ddr2_dimm_params.c
+++ b/drivers/ddr/fsl/ddr2_dimm_params.c
@@ -211,10 +211,10 @@ compute_derated_DDR2_CAS_latency(unsigned int mclk_ps)
  *
  * FIXME: use #define for the retvals
  */
-unsigned int
-ddr_compute_dimm_parameters(const ddr2_spd_eeprom_t *spd,
-			     dimm_params_t *pdimm,
-			     unsigned int dimm_number)
+unsigned int ddr_compute_dimm_parameters(const unsigned int ctrl_num,
+					 const ddr2_spd_eeprom_t *spd,
+					 dimm_params_t *pdimm,
+					 unsigned int dimm_number)
 {
 	unsigned int retval;
 
@@ -310,8 +310,8 @@ ddr_compute_dimm_parameters(const ddr2_spd_eeprom_t *spd,
 					  & ~(1 << pdimm->caslat_x_minus_1));
 
 	/* Compute CAS latencies below that defined by SPD */
-	pdimm->caslat_lowest_derated
-		= compute_derated_DDR2_CAS_latency(get_memory_clk_period_ps());
+	pdimm->caslat_lowest_derated = compute_derated_DDR2_CAS_latency(
+					get_memory_clk_period_ps(ctrl_num));
 
 	/* Compute timing parameters */
 	pdimm->trcd_ps = spd->trcd * 250;
diff --git a/drivers/ddr/fsl/ddr3_dimm_params.c b/drivers/ddr/fsl/ddr3_dimm_params.c
index a4b8c10..6917715 100644
--- a/drivers/ddr/fsl/ddr3_dimm_params.c
+++ b/drivers/ddr/fsl/ddr3_dimm_params.c
@@ -83,10 +83,10 @@ compute_ranksize(const ddr3_spd_eeprom_t *spd)
  * Writes the results to the dimm_params_t structure pointed by pdimm.
  *
  */
-unsigned int
-ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd,
-			     dimm_params_t *pdimm,
-			     unsigned int dimm_number)
+unsigned int ddr_compute_dimm_parameters(const unsigned int ctrl_num,
+					 const ddr3_spd_eeprom_t *spd,
+					 dimm_params_t *pdimm,
+					 unsigned int dimm_number)
 {
 	unsigned int retval;
 	unsigned int mtb_ps;
diff --git a/drivers/ddr/fsl/ddr4_dimm_params.c b/drivers/ddr/fsl/ddr4_dimm_params.c
index aaddc8f..bbfb4ee 100644
--- a/drivers/ddr/fsl/ddr4_dimm_params.c
+++ b/drivers/ddr/fsl/ddr4_dimm_params.c
@@ -119,10 +119,10 @@ compute_ranksize(const struct ddr4_spd_eeprom_s *spd)
  * Writes the results to the dimm_params_t structure pointed by pdimm.
  *
  */
-unsigned int
-ddr_compute_dimm_parameters(const generic_spd_eeprom_t *spd,
-			    dimm_params_t *pdimm,
-			    unsigned int dimm_number)
+unsigned int ddr_compute_dimm_parameters(const unsigned int ctrl_num,
+					 const generic_spd_eeprom_t *spd,
+					 dimm_params_t *pdimm,
+					 unsigned int dimm_number)
 {
 	unsigned int retval;
 	int i;
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c
index f44c155..7f34d3d 100644
--- a/drivers/ddr/fsl/fsl_ddr_gen4.c
+++ b/drivers/ddr/fsl/fsl_ddr_gen4.c
@@ -279,7 +279,7 @@ step2:
 	bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK)
 			>> SDRAM_CFG_DBW_SHIFT);
 	timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
-		(get_ddr_freq(0) >> 20)) << 2;
+		(get_ddr_freq(ctrl_num) >> 20)) << 2;
 	total_gb_size_per_controller >>= 4;	/* shift down to gb size */
 	debug("total %d GB\n", total_gb_size_per_controller);
 	debug("Need to wait up to %d * 10ms\n", timeout);
diff --git a/drivers/ddr/fsl/lc_common_dimm_params.c b/drivers/ddr/fsl/lc_common_dimm_params.c
index 73db444..b295344 100644
--- a/drivers/ddr/fsl/lc_common_dimm_params.c
+++ b/drivers/ddr/fsl/lc_common_dimm_params.c
@@ -13,7 +13,8 @@
 
 #if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
 static unsigned int
-compute_cas_latency(const dimm_params_t *dimm_params,
+compute_cas_latency(const unsigned int ctrl_num,
+		    const dimm_params_t *dimm_params,
 		    common_timing_params_t *outpdimm,
 		    unsigned int number_of_dimms)
 {
@@ -22,7 +23,7 @@ compute_cas_latency(const dimm_params_t *dimm_params,
 	unsigned int caslat_actual;
 	unsigned int retry = 16;
 	unsigned int tmp;
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 #ifdef CONFIG_SYS_FSL_DDR3
 	const unsigned int taamax = 20000;
 #else
@@ -72,12 +73,13 @@ compute_cas_latency(const dimm_params_t *dimm_params,
 }
 #else	/* for DDR1 and DDR2 */
 static unsigned int
-compute_cas_latency(const dimm_params_t *dimm_params,
+compute_cas_latency(const unsigned int ctrl_num,
+		    const dimm_params_t *dimm_params,
 		    common_timing_params_t *outpdimm,
 		    unsigned int number_of_dimms)
 {
 	int i;
-	const unsigned int mclk_ps = get_memory_clk_period_ps();
+	const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
 	unsigned int lowest_good_caslat;
 	unsigned int not_ok;
 	unsigned int temp1, temp2;
@@ -212,7 +214,8 @@ compute_cas_latency(const dimm_params_t *dimm_params,
  * by dimm_params.
  */
 unsigned int
-compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
+compute_lowest_common_dimm_parameters(const unsigned int ctrl_num,
+				      const dimm_params_t *dimm_params,
 				      common_timing_params_t *outpdimm,
 				      const unsigned int number_of_dimms)
 {
@@ -442,7 +445,8 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
 		printf("ERROR: Mix different RDIMM detected!\n");
 
 	/* calculate cas latency for all DDR types */
-	if (compute_cas_latency(dimm_params, outpdimm, number_of_dimms))
+	if (compute_cas_latency(ctrl_num, dimm_params,
+				outpdimm, number_of_dimms))
 		return 1;
 
 	/* Determine if all DIMMs ECC capable. */
@@ -518,11 +522,12 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
 
 #if defined(CONFIG_SYS_FSL_DDR2)
 	if ((outpdimm->lowest_common_spd_caslat < 4) &&
-	    (picos_to_mclk(trcd_ps) > outpdimm->lowest_common_spd_caslat)) {
-		additive_latency = picos_to_mclk(trcd_ps) -
+	    (picos_to_mclk(ctrl_num, trcd_ps) >
+	     outpdimm->lowest_common_spd_caslat)) {
+		additive_latency = picos_to_mclk(ctrl_num, trcd_ps) -
 				   outpdimm->lowest_common_spd_caslat;
-		if (mclk_to_picos(additive_latency) > trcd_ps) {
-			additive_latency = picos_to_mclk(trcd_ps);
+		if (mclk_to_picos(ctrl_num, additive_latency) > trcd_ps) {
+			additive_latency = picos_to_mclk(ctrl_num, trcd_ps);
 			debug("setting additive_latency to %u because it was "
 				" greater than tRCD_ps\n", additive_latency);
 		}
@@ -534,7 +539,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
 	 *
 	 * AL <= tRCD(min)
 	 */
-	if (mclk_to_picos(additive_latency) > trcd_ps) {
+	if (mclk_to_picos(ctrl_num, additive_latency) > trcd_ps) {
 		printf("Error: invalid additive latency exceeds tRCD(min).\n");
 		return 1;
 	}
diff --git a/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c
index 6f291eb..f49939b 100644
--- a/drivers/ddr/fsl/main.c
+++ b/drivers/ddr/fsl/main.c
@@ -450,7 +450,8 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
 					&(pinfo->spd_installed_dimms[i][j]);
 				dimm_params_t *pdimm =
 					&(pinfo->dimm_params[i][j]);
-				retval = compute_dimm_parameters(spd, pdimm, i);
+				retval = compute_dimm_parameters(
+							i, spd, pdimm, j);
 #ifdef CONFIG_SYS_DDR_RAW_TIMING
 				if (!i && !j && retval) {
 					printf("SPD error on controller %d! "
@@ -507,10 +508,11 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
 		for (i = first_ctrl; i <= last_ctrl; i++) {
 			debug("Computing lowest common DIMM"
 				" parameters for memctl=%u\n", i);
-			compute_lowest_common_dimm_parameters(
-				pinfo->dimm_params[i],
-				&timing_params[i],
-				CONFIG_DIMM_SLOTS_PER_CTLR);
+			compute_lowest_common_dimm_parameters
+				(i,
+				 pinfo->dimm_params[i],
+				 &timing_params[i],
+				 CONFIG_DIMM_SLOTS_PER_CTLR);
 		}
 
 	case STEP_GATHER_OPTS:
@@ -562,12 +564,13 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
 				continue;
 			}
 
-			compute_fsl_memctl_config_regs(
-					&pinfo->memctl_opts[i],
-					&ddr_reg[i], &timing_params[i],
-					pinfo->dimm_params[i],
-					dbw_capacity_adjust[i],
-					size_only);
+			compute_fsl_memctl_config_regs
+				(i,
+				 &pinfo->memctl_opts[i],
+				 &ddr_reg[i], &timing_params[i],
+				 pinfo->dimm_params[i],
+				 dbw_capacity_adjust[i],
+				 size_only);
 		}
 
 	default:
diff --git a/drivers/ddr/fsl/mpc85xx_ddr_gen3.c b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
index 8f4d01a..6752d4d 100644
--- a/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
+++ b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
@@ -426,7 +426,7 @@ step2:
 	bus_width = 3 - ((ddr->sdram_cfg & SDRAM_CFG_DBW_MASK)
 			>> SDRAM_CFG_DBW_SHIFT);
 	timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
-		(get_ddr_freq(0) >> 20)) << 1;
+		(get_ddr_freq(ctrl_num) >> 20)) << 1;
 #ifdef CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134
 	timeout_save = timeout;
 #endif
@@ -538,12 +538,14 @@ step2:
 		case 1:
 			out_be32(&ddr->cs1_bnds, regs->cs[csn].bnds);
 			break;
+#if CONFIG_CHIP_SELECTS_PER_CTRL > 2
 		case 2:
 			out_be32(&ddr->cs2_bnds, regs->cs[csn].bnds);
 			break;
 		case 3:
 			out_be32(&ddr->cs3_bnds, regs->cs[csn].bnds);
 			break;
+#endif
 		}
 		clrbits_be32(&ddr->sdram_cfg, 0x2);
 	}
diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c
index 6d098d1..5beb11b 100644
--- a/drivers/ddr/fsl/options.c
+++ b/drivers/ddr/fsl/options.c
@@ -732,7 +732,7 @@ unsigned int populate_memctl_options(int all_dimms_registered,
 #endif
 
 	/* Global Timing Parameters. */
-	debug("mclk_ps = %u ps\n", get_memory_clk_period_ps());
+	debug("mclk_ps = %u ps\n", get_memory_clk_period_ps(ctrl_num));
 
 	/* Pick a caslat override. */
 	popts->cas_latency_override = 0;
@@ -785,7 +785,7 @@ unsigned int populate_memctl_options(int all_dimms_registered,
 	 * FIXME: width, was considering looking at pdimm->primary_sdram_width
 	 */
 #if defined(CONFIG_SYS_FSL_DDR1)
-	popts->tfaw_window_four_activates_ps = mclk_to_picos(1);
+	popts->tfaw_window_four_activates_ps = mclk_to_picos(ctrl_num, 1);
 
 #elif defined(CONFIG_SYS_FSL_DDR2)
 	/*
@@ -1036,7 +1036,7 @@ done:
 	if (pdimm[0].n_ranks == 4)
 		popts->quad_rank_present = 1;
 
-	ddr_freq = get_ddr_freq(0) / 1000000;
+	ddr_freq = get_ddr_freq(ctrl_num) / 1000000;
 	if (popts->registered_dimm_en) {
 		popts->rcw_override = 1;
 		popts->rcw_1 = 0x000a5a00;
diff --git a/drivers/ddr/fsl/util.c b/drivers/ddr/fsl/util.c
index 58b519b..ad569de 100644
--- a/drivers/ddr/fsl/util.c
+++ b/drivers/ddr/fsl/util.c
@@ -43,9 +43,9 @@ u32 fsl_ddr_get_version(void)
  * propagation, compute a suitably rounded mclk_ps to compute
  * a working memory controller configuration.
  */
-unsigned int get_memory_clk_period_ps(void)
+unsigned int get_memory_clk_period_ps(const unsigned int ctrl_num)
 {
-	unsigned int data_rate = get_ddr_freq(0);
+	unsigned int data_rate = get_ddr_freq(ctrl_num);
 	unsigned int result;
 
 	/* Round to nearest 10ps, being careful about 64-bit multiply/divide */
@@ -59,10 +59,10 @@ unsigned int get_memory_clk_period_ps(void)
 }
 
 /* Convert picoseconds into DRAM clock cycles (rounding up if needed). */
-unsigned int picos_to_mclk(unsigned int picos)
+unsigned int picos_to_mclk(const unsigned int ctrl_num, unsigned int picos)
 {
 	unsigned long long clks, clks_rem;
-	unsigned long data_rate = get_ddr_freq(0);
+	unsigned long data_rate = get_ddr_freq(ctrl_num);
 
 	/* Short circuit for zero picos */
 	if (!picos)
@@ -88,9 +88,9 @@ unsigned int picos_to_mclk(unsigned int picos)
 	return (unsigned int) clks;
 }
 
-unsigned int mclk_to_picos(unsigned int mclk)
+unsigned int mclk_to_picos(const unsigned int ctrl_num, unsigned int mclk)
 {
-	return get_memory_clk_period_ps() * mclk;
+	return get_memory_clk_period_ps(ctrl_num) * mclk;
 }
 
 #ifdef CONFIG_PPC
diff --git a/include/fsl_ddr.h b/include/fsl_ddr.h
index 3286c95..96fde91 100644
--- a/include/fsl_ddr.h
+++ b/include/fsl_ddr.h
@@ -44,11 +44,12 @@ u32 fsl_ddr_get_version(void);
  * to this specific DDR technology.
  */
 static __inline__ int
-compute_dimm_parameters(const generic_spd_eeprom_t *spd,
+compute_dimm_parameters(const unsigned int ctrl_num,
+			const generic_spd_eeprom_t *spd,
 			dimm_params_t *pdimm,
 			unsigned int dimm_number)
 {
-	return ddr_compute_dimm_parameters(spd, pdimm, dimm_number);
+	return ddr_compute_dimm_parameters(ctrl_num, spd, pdimm, dimm_number);
 }
 #endif
 
@@ -92,13 +93,15 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
 				       unsigned int size_only);
 const char *step_to_string(unsigned int step);
 
-unsigned int compute_fsl_memctl_config_regs(const memctl_options_t *popts,
+unsigned int compute_fsl_memctl_config_regs(const unsigned int ctrl_num,
+			       const memctl_options_t *popts,
 			       fsl_ddr_cfg_regs_t *ddr,
 			       const common_timing_params_t *common_dimm,
 			       const dimm_params_t *dimm_parameters,
 			       unsigned int dbw_capacity_adjust,
 			       unsigned int size_only);
 unsigned int compute_lowest_common_dimm_parameters(
+				const unsigned int ctrl_num,
 				const dimm_params_t *dimm_params,
 				common_timing_params_t *outpdimm,
 				unsigned int number_of_dimms);
@@ -108,9 +111,9 @@ unsigned int populate_memctl_options(int all_dimms_registered,
 				unsigned int ctrl_num);
 void check_interleaving_options(fsl_ddr_info_t *pinfo);
 
-unsigned int mclk_to_picos(unsigned int mclk);
-unsigned int get_memory_clk_period_ps(void);
-unsigned int picos_to_mclk(unsigned int picos);
+unsigned int mclk_to_picos(const unsigned int ctrl_num, unsigned int mclk);
+unsigned int get_memory_clk_period_ps(const unsigned int ctrl_num);
+unsigned int picos_to_mclk(const unsigned int ctrl_num, unsigned int picos);
 void fsl_ddr_set_lawbar(
 		const common_timing_params_t *memctl_common_params,
 		unsigned int memctl_interleaved,
diff --git a/include/fsl_ddr_dimm_params.h b/include/fsl_ddr_dimm_params.h
index 09a67a6..751e935 100644
--- a/include/fsl_ddr_dimm_params.h
+++ b/include/fsl_ddr_dimm_params.h
@@ -112,7 +112,7 @@ typedef struct dimm_params_s {
 #endif
 } dimm_params_t;
 
-extern unsigned int ddr_compute_dimm_parameters(
+unsigned int ddr_compute_dimm_parameters(const unsigned int ctrl_num,
 					 const generic_spd_eeprom_t *spd,
 					 dimm_params_t *pdimm,
 					 unsigned int dimm_number);
