dts: arm: st: add stm32h523Xe support

Provide support for STM32H523XE.

Signed-off-by: Filip Stojanovic <[email protected]>

Author: filipembedded

dts/arm/st/h5/stm32h523.dtsi

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2024 STMicroelectronics
+ * Copyright (c) 2025 Filip Stojanovic
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <st/h5/stm32h5.dtsi>
+
+/ {
+	soc {
+		compatible = "st,stm32h533", "st,stm32h5", "simple-bus";
+
+		gpiof: gpio@42021400 {
+			compatible = "st,stm32-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+			reg = <0x42021400 0x400>;
+			clocks = <&rcc STM32_CLOCK(AHB2, 7U)>;
+		};
+
+		fmc: memory-controller@47000400 {
+			compatible = "st,stm32-fmc";
+			reg = <0x47000400 0x400>;
+			clocks = <&rcc STM32_CLOCK(AHB4, 16U)>;
+			status = "disabled";
+		};
+	};
+};

dts/arm/st/h5/stm32h523Xe.dtsi

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2024 STMicroelectronics
+ * Copyright (c) 2025 Filip Stojanovic
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <mem.h>
+#include <st/h5/stm32h533.dtsi>
+
+/ {
+	sram1: memory@20000000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x20000000 DT_SIZE_K(128)>;
+		zephyr,memory-region = "SRAM1";
+	};
+
+	sram2: memory@20040000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x20040000 DT_SIZE_K(80)>;
+		zephyr,memory-region = "SRAM2";
+	};
+
+	sram3: memory@20050000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x20050000 DT_SIZE_K(64)>;
+		zephyr,memory-region = "SRAM3";
+	};
+
+	soc {
+		flash-controller@40022000 {
+			flash0: flash@8000000 {
+				reg = <0x08000000 DT_SIZE_K(512)>;
+			};
+		};
+	};
+};

dts/arm/st/h5/stm32h533.dtsi

@@ -3,25 +3,5 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
-#include <st/h5/stm32h5.dtsi>
 
-/ {
-	soc {
-		compatible = "st,stm32h533", "st,stm32h5", "simple-bus";
-
-		gpiof: gpio@42021400 {
-			compatible = "st,stm32-gpio";
-			gpio-controller;
-			#gpio-cells = <2>;
-			reg = <0x42021400 0x400>;
-			clocks = <&rcc STM32_CLOCK(AHB2, 7U)>;
-		};
-
-		fmc: memory-controller@47000400 {
-			compatible = "st,stm32-fmc";
-			reg = <0x47000400 0x400>;
-			clocks = <&rcc STM32_CLOCK(AHB4, 16U)>;
-			status = "disabled";
-		};
-	};
-};
+#include <st/h5/stm32h523.dtsi>