From 6fec48956cc210878294f3fd1b9a1875337db243 Mon Sep 17 00:00:00 2001
From: Charles Dias <charlesdias.cd@outlook.com>
Date: Sat, 12 Apr 2025 15:51:57 +0100
Subject: [PATCH] dts: arm: st: u5: add support for stm32u5g9

Add device tree support for STM32U5G9 line.

Signed-off-by: Charles Dias <charlesdias.cd@outlook.com>
---
 dts/arm/st/u5/stm32u5g9.dtsi   | 13 +++++++++++++
 dts/arm/st/u5/stm32u5g9Xj.dtsi | 29 +++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 dts/arm/st/u5/stm32u5g9.dtsi
 create mode 100644 dts/arm/st/u5/stm32u5g9Xj.dtsi

diff --git a/dts/arm/st/u5/stm32u5g9.dtsi b/dts/arm/st/u5/stm32u5g9.dtsi
new file mode 100644
index 00000000000..f9eadbb65e0
--- /dev/null
+++ b/dts/arm/st/u5/stm32u5g9.dtsi
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2025 Charles Dias
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <st/u5/stm32u595.dtsi>
+
+/ {
+	soc {
+		compatible = "st,stm32u5g9", "st,stm32u5", "simple-bus";
+	};
+};
diff --git a/dts/arm/st/u5/stm32u5g9Xj.dtsi b/dts/arm/st/u5/stm32u5g9Xj.dtsi
new file mode 100644
index 00000000000..10e4793f9d1
--- /dev/null
+++ b/dts/arm/st/u5/stm32u5g9Xj.dtsi
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Charles Dias
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <mem.h>
+#include <st/u5/stm32u5g9.dtsi>
+
+/ {
+	sram0: memory@20000000 {
+		/* SRAM1 + SRAM2 + SRAM3 + SRAM5 + SRAM6 */
+		/* 768K + 64K + 832K + 832K + 512 */
+		reg = <0x20000000 DT_SIZE_K(3008)>;
+	};
+
+	sram4: memory@28000000 {
+		/* SRAM4, low-power background autonomous mode */
+		reg = <0x28000000 DT_SIZE_K(16)>;
+	};
+
+	soc {
+		flash-controller@40022000 {
+			flash0: flash@8000000 {
+				reg = <0x08000000 DT_SIZE_M(4)>;
+			};
+		};
+	};
+};