diff --git a/src/mainboard/google/kukui/sdram_configs.c b/src/mainboard/google/kukui/sdram_configs.c
index cbfb08d5ce..5931c79ecd 100644
--- a/src/mainboard/google/kukui/sdram_configs.c
+++ b/src/mainboard/google/kukui/sdram_configs.c
@@ -21,6 +21,8 @@
 static const char *const sdram_configs[] = {
 	[1] = "sdram-lpddr4x-H9HCNNNCPMALHR-4GB",
 	[2] = "sdram-lpddr4x-MT53E1G32D4NQ-4GB",
+	[3] = "sdram-lpddr4x-KMDP6001DA-B425-4GB",
+	[5] = "sdram-lpddr4x-MT29VZZZAD8DQKSL-4GB",
 };
 
 static struct sdram_params params;
diff --git a/src/mainboard/google/kukui/sdram_params/Makefile.inc b/src/mainboard/google/kukui/sdram_params/Makefile.inc
index 1e11140873..77158a5c59 100644
--- a/src/mainboard/google/kukui/sdram_params/Makefile.inc
+++ b/src/mainboard/google/kukui/sdram_params/Makefile.inc
@@ -1,6 +1,8 @@
 sdram-params :=
 sdram-params += sdram-lpddr4x-H9HCNNNCPMALHR-4GB
 sdram-params += sdram-lpddr4x-MT53E1G32D4NQ-4GB
+sdram-params += sdram-lpddr4x-KMDP6001DA-B425-4GB
+sdram-params += sdram-lpddr4x-MT29VZZZAD8DQKSL-4GB
 
 $(foreach params,$(sdram-params), \
 	$(eval cbfs-files-y += $(params)) \
diff --git a/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-KMDP6001DA-B425-4GB.c b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-KMDP6001DA-B425-4GB.c
new file mode 100644
index 0000000000..1e0c3628fd
--- /dev/null
+++ b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-KMDP6001DA-B425-4GB.c
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <soc/emi.h>
+
+struct sdram_params params = {
+	.impedance = {
+		[ODT_OFF] = {0x9, 0x7, 0x0, 0xF},
+		[ODT_ON] = {0xA, 0x9, 0x0, 0xE}
+	},
+	.wr_level = {
+		[CHANNEL_A] = { {0x21, 0x21}, {0x20, 0x20} },
+		[CHANNEL_B] = { {0x1E, 0x1F}, {0x1D, 0x1E} }
+	},
+	.cbt_cs = {
+		[CHANNEL_A] = {0x1, 0x1},
+		[CHANNEL_B] = {0x2, 0x2}
+	},
+	.cbt_mr12 = {
+		[CHANNEL_A] = {0x56, 0x56},
+		[CHANNEL_B] = {0x58, 0x5C}
+	},
+	.emi_cona_val = 0xF053F154,
+	.emi_conh_val = 0x44440003,
+	.emi_conf_val = 0x00421000,
+	.chn_emi_cona_val = {0x0444F051, 0x0444F051},
+	.cbt_mode_extern = CBT_NORMAL_MODE,
+	.delay_cell_unit = 868,
+};
diff --git a/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-MT29VZZZAD8DQKSL-4GB.c b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-MT29VZZZAD8DQKSL-4GB.c
new file mode 100644
index 0000000000..512023b35e
--- /dev/null
+++ b/src/mainboard/google/kukui/sdram_params/sdram-lpddr4x-MT29VZZZAD8DQKSL-4GB.c
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <soc/emi.h>
+
+struct sdram_params params = {
+	.impedance = {
+		[ODT_OFF] = {0x9, 0x7, 0x0, 0xF},
+		[ODT_ON] = {0xA, 0x9, 0x0, 0xE}
+	},
+	.wr_level = {
+		[CHANNEL_A] = { {0x21, 0x21}, {0x20, 0x20} },
+		[CHANNEL_B] = { {0x21, 0x28}, {0x21, 0x29} }
+	},
+	.cbt_cs = {
+		[CHANNEL_A] = {0x2, 0x2},
+		[CHANNEL_B] = {0x2, 0x2}
+	},
+	.cbt_mr12 = {
+		[CHANNEL_A] = {0x5E, 0x5E},
+		[CHANNEL_B] = {0x5E, 0x5C}
+	},
+	.emi_cona_val = 0xF053F154,
+	.emi_conh_val = 0x44440003,
+	.emi_conf_val = 0x00421000,
+	.chn_emi_cona_val = {0x0444F051, 0x0444F051},
+	.cbt_mode_extern = CBT_NORMAL_MODE,
+	.delay_cell_unit = 868,
+};
diff --git a/src/soc/mediatek/mt8183/dramc_pi_calibration_api.c b/src/soc/mediatek/mt8183/dramc_pi_calibration_api.c
index 6dc8fa6588..05f793ec4b 100644
--- a/src/soc/mediatek/mt8183/dramc_pi_calibration_api.c
+++ b/src/soc/mediatek/mt8183/dramc_pi_calibration_api.c
@@ -32,7 +32,7 @@ enum {
 
 enum {
 	FIRST_DQ_DELAY = 0,
-	FIRST_DQS_DELAY = -10,
+	FIRST_DQS_DELAY = -16,
 	MAX_DQDLY_TAPS = 16,
 	MAX_RX_DQDLY_TAPS = 63,
 };