pico-imx6: improve DDR stability for Kingston D2516ECMDXGJD-U on pico…

…-imx6q

board/technexion/pico-imx6/pico-imx6_spl.c

@@ -157,6 +157,20 @@ static struct mx6_ddr3_cfg b511ecmdxg_1066mhz = {
 	.trasmin = 3750,
 };
 
+/* Kingston D2516ECMDXGJD-U for i.mx6Quad operating DDR at 528MHz */
+static struct mx6_ddr3_cfg d2516ecmdxgjd_1066mhz = {
+	.mem_speed = 1066,
+	.density = 4,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 15,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1312,
+	.trcmin = 5062,
+	.trasmin = 3750,
+};
+
 /* H5T04G63AFR-PB for i.mx6Solo/DL operating DDR at 400MHz */
 static struct mx6_ddr3_cfg h5t04g63afr_800mhz = {
 	.mem_speed = 800,
@@ -199,18 +213,12 @@ static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = {
 };
 
 static struct mx6_mmdc_calibration mx6q_1g_mmdc_calib = {
-	.p0_mpwldectrl0 = 0x00000000,
-	.p0_mpwldectrl1 = 0x00000000,
-	.p1_mpwldectrl0 = 0x00000000,
-	.p1_mpwldectrl1 = 0x00000000,
-	.p0_mpdgctrl0 = 0x032C0340,
-	.p0_mpdgctrl1 = 0x03300324,
-	.p1_mpdgctrl0 = 0x032C0338,
-	.p1_mpdgctrl1 = 0x03300274,
-	.p0_mprddlctl = 0x423A383E,
-	.p1_mprddlctl = 0x3638323E,
-	.p0_mpwrdlctl = 0x363C4640,
-	.p1_mpwrdlctl = 0x4034423C,
+	.p0_mpwldectrl0 = 0x000C0019,
+	.p0_mpwldectrl1 = 0x001C0014,
+	.p0_mpdgctrl0 = 0x0314031C,
+	.p0_mpdgctrl1 = 0x03080308,
+	.p0_mprddlctl =0x3E363438,
+	.p0_mpwrdlctl = 0x30363836,
 };
 
 static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
@@ -351,7 +359,7 @@ static void spl_dram_init(void)
 		*/
 		ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, SZ_2G);
 		if (ram_size < SZ_2G) {
-			mx6_dram_cfg(&mem_s, &mx6q_1g_mmdc_calib, &h5t04g63afr_800mhz);
+			mx6_dram_cfg(&mem_s, &mx6q_1g_mmdc_calib, &d2516ecmdxgjd_1066mhz);
 		}
 		break;
 	}