diff --git a/fdts/stm32mp157a-dk1.dts b/fdts/stm32mp157a-dk1.dts
index 4ea83f7..a73bef8 100644
--- a/fdts/stm32mp157a-dk1.dts
+++ b/fdts/stm32mp157a-dk1.dts
@@ -1,13 +1,15 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
- * Copyright (C) STMicroelectronics 2018-2019 - All Rights Reserved
- * Author: Alexandre Torgue <alexandre.torgue@st.com>.
+ * Copyright (C) STMicroelectronics 2019 - All Rights Reserved
+ * Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
  */
 
 /dts-v1/;
 
-#include "stm32mp157c.dtsi"
-#include "stm32mp157cac-pinctrl.dtsi"
+#include "stm32mp157.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxac-pinctrl.dtsi"
+#include "stm32mp15xx-dkx.dtsi"
 
 / {
 	model = "STMicroelectronics STM32MP157A-DK1 Discovery Board";
@@ -22,290 +24,4 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
-
-};
-
-&clk_hse {
-	st,digbypass;
-};
-
-&i2c4 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c4_pins_a>;
-	i2c-scl-rising-time-ns = <185>;
-	i2c-scl-falling-time-ns = <20>;
-	status = "okay";
-
-	pmic: stpmic@33 {
-		compatible = "st,stpmic1";
-		reg = <0x33>;
-		interrupts-extended = <&exti_pwr 55 IRQ_TYPE_EDGE_FALLING>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-		status = "okay";
-
-		st,main-control-register = <0x04>;
-		st,vin-control-register = <0xc0>;
-		st,usb-control-register = <0x20>;
-
-		regulators {
-			compatible = "st,stpmic1-regulators";
-
-			ldo1-supply = <&v3v3>;
-			ldo3-supply = <&vdd_ddr>;
-			ldo6-supply = <&v3v3>;
-
-			vddcore: buck1 {
-				regulator-name = "vddcore";
-				regulator-min-microvolt = <1200000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-initial-mode = <0>;
-				regulator-over-current-protection;
-			};
-
-			vdd_ddr: buck2 {
-				regulator-name = "vdd_ddr";
-				regulator-min-microvolt = <1350000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-initial-mode = <0>;
-				regulator-over-current-protection;
-			};
-
-			vdd: buck3 {
-				regulator-name = "vdd";
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
-				regulator-always-on;
-				st,mask-reset;
-				regulator-initial-mode = <0>;
-				regulator-over-current-protection;
-			};
-
-			v3v3: buck4 {
-				regulator-name = "v3v3";
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
-				regulator-always-on;
-				regulator-over-current-protection;
-				regulator-initial-mode = <0>;
-			};
-
-			v1v8_audio: ldo1 {
-				regulator-name = "v1v8_audio";
-				regulator-min-microvolt = <1800000>;
-				regulator-max-microvolt = <1800000>;
-				regulator-always-on;
-			};
-
-			v3v3_hdmi: ldo2 {
-				regulator-name = "v3v3_hdmi";
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
-				regulator-always-on;
-			};
-
-			vtt_ddr: ldo3 {
-				regulator-name = "vtt_ddr";
-				regulator-min-microvolt = <500000>;
-				regulator-max-microvolt = <750000>;
-				regulator-always-on;
-				regulator-over-current-protection;
-			};
-
-			vdd_usb: ldo4 {
-				regulator-name = "vdd_usb";
-				regulator-min-microvolt = <3300000>;
-				regulator-max-microvolt = <3300000>;
-			};
-
-			vdda: ldo5 {
-				regulator-name = "vdda";
-				regulator-min-microvolt = <2900000>;
-				regulator-max-microvolt = <2900000>;
-				regulator-boot-on;
-			};
-
-			v1v2_hdmi: ldo6 {
-				regulator-name = "v1v2_hdmi";
-				regulator-min-microvolt = <1200000>;
-				regulator-max-microvolt = <1200000>;
-				regulator-always-on;
-			};
-
-			vref_ddr: vref_ddr {
-				regulator-name = "vref_ddr";
-				regulator-always-on;
-				regulator-over-current-protection;
-			};
-		};
-	};
-};
-
-&iwdg2 {
-	timeout-sec = <32>;
-	status = "okay";
-};
-
-&pwr {
-	pwr-regulators {
-		vdd-supply = <&vdd>;
-	};
-};
-
-&rng1 {
-	status = "okay";
-};
-
-&rtc {
-	status = "okay";
-};
-
-&sdmmc1 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdmmc1_b4_pins_a>;
-	broken-cd;
-	st,neg-edge;
-	bus-width = <4>;
-	vmmc-supply = <&v3v3>;
-	status = "okay";
-};
-
-&uart4 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart4_pins_a>;
-	status = "okay";
-};
-
-&uart7 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart7_pins_a>;
-	status = "disabled";
-};
-
-&usart3 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&usart3_pins_b>;
-	status = "disabled";
-};
-
-/* ATF Specific */
-#include <dt-bindings/clock/stm32mp1-clksrc.h>
-#include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi"
-#include "stm32mp157c-security.dtsi"
-
-/ {
-	aliases {
-		gpio0 = &gpioa;
-		gpio1 = &gpiob;
-		gpio2 = &gpioc;
-		gpio3 = &gpiod;
-		gpio4 = &gpioe;
-		gpio5 = &gpiof;
-		gpio6 = &gpiog;
-		gpio7 = &gpioh;
-		gpio8 = &gpioi;
-		gpio25 = &gpioz;
-		i2c3 = &i2c4;
-	};
-};
-
-/* CLOCK init */
-&rcc {
-	secure-status = "disabled";
-	st,clksrc = <
-		CLK_MPU_PLL1P
-		CLK_AXI_PLL2P
-		CLK_MCU_PLL3P
-		CLK_PLL12_HSE
-		CLK_PLL3_HSE
-		CLK_PLL4_HSE
-		CLK_RTC_LSE
-		CLK_MCO1_DISABLED
-		CLK_MCO2_DISABLED
-	>;
-
-	st,clkdiv = <
-		1 /*MPU*/
-		0 /*AXI*/
-		0 /*MCU*/
-		1 /*APB1*/
-		1 /*APB2*/
-		1 /*APB3*/
-		1 /*APB4*/
-		2 /*APB5*/
-		23 /*RTC*/
-		0 /*MCO1*/
-		0 /*MCO2*/
-	>;
-
-	st,pkcs = <
-		CLK_CKPER_HSE
-		CLK_FMC_ACLK
-		CLK_QSPI_ACLK
-		CLK_ETH_DISABLED
-		CLK_SDMMC12_PLL4P
-		CLK_DSI_DSIPLL
-		CLK_STGEN_HSE
-		CLK_USBPHY_HSE
-		CLK_SPI2S1_PLL3Q
-		CLK_SPI2S23_PLL3Q
-		CLK_SPI45_HSI
-		CLK_SPI6_HSI
-		CLK_I2C46_HSI
-		CLK_SDMMC3_PLL4P
-		CLK_USBO_USBPHY
-		CLK_ADC_CKPER
-		CLK_CEC_LSE
-		CLK_I2C12_HSI
-		CLK_I2C35_HSI
-		CLK_UART1_HSI
-		CLK_UART24_HSI
-		CLK_UART35_HSI
-		CLK_UART6_HSI
-		CLK_UART78_HSI
-		CLK_SPDIF_PLL4P
-		CLK_FDCAN_PLL4R
-		CLK_SAI1_PLL3Q
-		CLK_SAI2_PLL3Q
-		CLK_SAI3_PLL3Q
-		CLK_SAI4_PLL3Q
-		CLK_RNG1_LSI
-		CLK_RNG2_LSI
-		CLK_LPTIM1_PCLK1
-		CLK_LPTIM23_PCLK3
-		CLK_LPTIM45_LSE
-	>;
-
-	/* VCO = 1300.0 MHz => P = 650 (CPU) */
-	pll1: st,pll@0 {
-		cfg = < 2 80 0 0 0 PQR(1,0,0) >;
-		frac = < 0x800 >;
-	};
-
-	/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
-	pll2: st,pll@1 {
-		cfg = < 2 65 1 0 0 PQR(1,1,1) >;
-		frac = < 0x1400 >;
-	};
-
-	/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
-	pll3: st,pll@2 {
-		cfg = < 1 33 1 16 36 PQR(1,1,1) >;
-		frac = < 0x1a04 >;
-	};
-
-	/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
-	pll4: st,pll@3 {
-		cfg = < 3 98 5 7 7 PQR(1,1,1) >;
-	};
-};
-
-&bsec {
-	board_id: board_id@ec {
-		reg = <0xec 0x4>;
-		status = "okay";
-		secure-status = "okay";
-	};
 };