soc: silabs: add configuration for silabs soc EFR32MG24B020F1536IM40

Added configurations and dts for soc part number EFR32MG24B020F1536IM40

Signed-off-by: Teresa Zepeda Ventura <teresa.zvent@gmail.com>

dts/arm/silabs/efr32mg24b020f1536im40.dtsi

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2019 Steven Lemaire
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <mem.h>
+#include <silabs/efr32mg24.dtsi>
+
+/ {
+	sram0: memory@20000000 {
+		reg = <0x20000000 DT_SIZE_K(256)>;
+	};
+
+	soc {
+		compatible = "silabs,efr32mg24b020f1536im40",
+					"silabs,efr32mg24", "silabs,efr32",
+					"simple-bus";
+
+		flash-controller@50030000 {
+			flash0: flash@0 {
+				reg = <0 DT_SIZE_K(1536)>;
+			};
+		 };
+	};
+};

soc/silabs/silabs_s2/efr32mg24/Kconfig.soc

@@ -9,6 +9,10 @@ config SOC_SERIES_EFR32MG24
 	help
 	  EFR32MG24 Series MCU
 
+config SOC_PART_NUMBER_EFR32MG24B020F1536IM40
+	bool
+	select SOC_SERIES_EFR32MG24
+
 config SOC_PART_NUMBER_EFR32MG24B220F1536IM48
 	bool
 	select SOC_SERIES_EFR32MG24
@@ -23,7 +27,9 @@ config SOC_SERIES
 config SOC
 	default "efr32mg24b220f1536im48" if SOC_PART_NUMBER_EFR32MG24B220F1536IM48
 	default "efr32mg24b310f1536im48" if SOC_PART_NUMBER_EFR32MG24B310F1536IM48
+	default "efr32mg24b020f1536im40" if SOC_PART_NUMBER_EFR32MG24B020F1536IM40
 
 config SOC_PART_NUMBER
 	default "EFR32MG24B220F1536IM48" if SOC_PART_NUMBER_EFR32MG24B220F1536IM48
 	default "EFR32MG24B310F1536IM48" if SOC_PART_NUMBER_EFR32MG24B310F1536IM48
+	default "EFR32MG24B020F1536IM40" if SOC_PART_NUMBER_EFR32MG24B020F1536IM40

soc/silabs/soc.yml

@@ -51,6 +51,7 @@ family:
         socs:
           - name: efr32mg24b220f1536im48
           - name: efr32mg24b310f1536im48
+          - name: efr32mg24b020f1536im40
       - name: efr32bg27
         socs:
           - name: efr32bg27c140f768im40