From e541e63653ad400c33503ee0c47f5b7fe591f249 Mon Sep 17 00:00:00 2001
From: Filip Brozovic <fbrozovic@gmail.com>
Date: Mon, 7 Oct 2019 08:35:35 +0200
Subject: [PATCH] soc: arm: stm32g0: add STM32G031 SoC series

This commit adds support for the STM32G031xx SoCs
by STMicroelectronics.

Signed-off-by: Filip Brozovic <fbrozovic@gmail.com>
---
 dts/arm/st/g0/stm32g031.dtsi                  |  7 ++++++
 dts/arm/st/g0/stm32g031X6.dtsi                | 22 +++++++++++++++++++
 .../stm32g0/Kconfig.defconfig.stm32g031xx     | 16 ++++++++++++++
 soc/arm/st_stm32/stm32g0/Kconfig.soc          |  3 +++
 4 files changed, 48 insertions(+)
 create mode 100644 dts/arm/st/g0/stm32g031.dtsi
 create mode 100644 dts/arm/st/g0/stm32g031X6.dtsi
 create mode 100644 soc/arm/st_stm32/stm32g0/Kconfig.defconfig.stm32g031xx

diff --git a/dts/arm/st/g0/stm32g031.dtsi b/dts/arm/st/g0/stm32g031.dtsi
new file mode 100644
index 00000000000..75e55ff302e
--- /dev/null
+++ b/dts/arm/st/g0/stm32g031.dtsi
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2019 SEAL AG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <st/g0/stm32g0.dtsi>
diff --git a/dts/arm/st/g0/stm32g031X6.dtsi b/dts/arm/st/g0/stm32g031X6.dtsi
new file mode 100644
index 00000000000..10e31f3e1f1
--- /dev/null
+++ b/dts/arm/st/g0/stm32g031X6.dtsi
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2019 SEAL AG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <mem.h>
+#include <st/g0/stm32g031.dtsi>
+
+/ {
+	sram0: memory@20000000 {
+		reg = <0x20000000 DT_SIZE_K(8)>;
+	};
+
+	soc {
+		flash-controller@40022000 {
+			flash0: flash@8000000 {
+				reg = <0x08000000 DT_SIZE_K(32)>;
+			};
+		};
+	};
+};
diff --git a/soc/arm/st_stm32/stm32g0/Kconfig.defconfig.stm32g031xx b/soc/arm/st_stm32/stm32g0/Kconfig.defconfig.stm32g031xx
new file mode 100644
index 00000000000..77022c3f740
--- /dev/null
+++ b/soc/arm/st_stm32/stm32g0/Kconfig.defconfig.stm32g031xx
@@ -0,0 +1,16 @@
+# STMicroelectronics STM32G031xx MCU
+
+# Copyright (c) 2019 SEAL AG
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32G031XX
+
+config SOC
+	string
+	default "stm32g031xx"
+
+config NUM_IRQS
+	int
+	default 30
+
+endif # SOC_STM32G031XX
diff --git a/soc/arm/st_stm32/stm32g0/Kconfig.soc b/soc/arm/st_stm32/stm32g0/Kconfig.soc
index f844288df68..50eb0e5b7ae 100644
--- a/soc/arm/st_stm32/stm32g0/Kconfig.soc
+++ b/soc/arm/st_stm32/stm32g0/Kconfig.soc
@@ -8,6 +8,9 @@ choice
 	prompt "STM32G0x MCU Selection"
 	depends on SOC_SERIES_STM32G0X
 
+config SOC_STM32G031XX
+	bool "STM32G031XX"
+
 config SOC_STM32G071XX
 	bool "STM32G071XX"