dts/arm/silabs: update partition definitions

- To link image loadable by MCUboot, zephyr,code-partition
must be set in the DTS.
- Move partition definitions from SoC DTS to the board DTS.
- Remove scratch partition since MCUboot does not recommend to use it.
- Increase bootloader partitions to 48K to fit recent MCUboot.

Signed-off-by: Roman Dobrodii <rdobrodii@antmicro.com>

Author: rdob-ant

boards/arm/efr32_thunderboard/efr32bg22_brd4184a.dts

@@ -22,39 +22,37 @@
 		spi0 = &usart0;
 		watchdog0 = &wdog0;
 	};
+
+	chosen {
+		zephyr,code-partition = &slot0_partition;
+	};
 };
 
 &flash0 {
 	partitions {
-		/* Reserve 32 kB for the bootloader */
+		/* Reserve 48 KiB for the bootloader */
 		boot_partition: partition@0 {
 			label = "mcuboot";
-			reg = <0x0 0x00008000>;
+			reg = <0x00000000 0x0000c000>;
 			read-only;
 		};
 
-		/* Reserve 220 kB for the application in slot 0 */
-		slot0_partition: partition@8000 {
+		/* Reserve 224 KiB for the application in slot 0 */
+		slot0_partition: partition@c000 {
 			label = "image-0";
-			reg = <0x0008000 0x00037000>;
+			reg = <0x0000c000 0x00038000>;
 		};
 
-		/* Reserve 220 kB for the application in slot 1 */
-		slot1_partition: partition@3f000 {
+		/* Reserve 224 KiB for the application in slot 1 */
+		slot1_partition: partition@44000 {
 			label = "image-1";
-			reg = <0x0003f000 0x00037000>;
-		};
-
-		/* Reserve 32 kB for the scratch partition */
-		scratch_partition: partition@76000 {
-			label = "image-scratch";
-			reg = <0x00076000 0x00008000>;
+			reg = <0x00044000 0x00038000>;
 		};
 
-		/* Set 8Kb of storage at the end of the 512KB of flash */
-		storage_partition: partition@7e000 {
+		/* Set 16 KiB of storage at the end of the 512 KiB of flash */
+		storage_partition: partition@7c000 {
 			label = "storage";
-			reg = <0x0007e000 0x00002000>;
+			reg = <0x0007c000 0x00004000>;
 		};
 	};
 };

boards/arm/efr32_thunderboard/efr32bg27_brd2602a.dts

@@ -22,6 +22,39 @@
 		spi0 = &usart0;
 		watchdog0 = &wdog0;
 	};
+
+	chosen {
+		zephyr,code-partition = &slot0_partition;
+	};
+};
+
+&flash0 {
+	partitions {
+		/* Reserve 48 KiB for the bootloader */
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x0000c000>;
+			read-only;
+		};
+
+		/* Reserve 328 KiB for the application in slot 0 */
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000c000 0x00052000>;
+		};
+
+		/* Reserve 328 KiB for the application in slot 1 */
+		slot1_partition: partition@5e000 {
+			label = "image-1";
+			reg = <0x0005e000 0x00052000>;
+		};
+
+		/* Set 64 KiB of storage at the end of the 768 KiB of flash */
+		storage_partition: partition@b0000 {
+			label = "storage";
+			reg = <0x000b0000 0x00010000>;
+		};
+	};
 };
 
 &led0 {

dts/arm/silabs/efr32bg22.dtsi

@@ -13,39 +13,6 @@
 		write-block-size = <4>;
 		erase-block-size = <8192>;
 		reg = <0x0 DT_SIZE_K(512)>;
-
-		partitions {
-			/* Reserve 32 kB for the bootloader */
-			boot_partition: partition@0 {
-				label = "mcuboot";
-				reg = <0x0 0x00008000>;
-				read-only;
-			};
-
-			/* Reserve 220 kB for the application in slot 0 */
-			slot0_partition: partition@8000 {
-				label = "image-0";
-				reg = <0x0008000 0x00037000>;
-			};
-
-			/* Reserve 220 kB for the application in slot 1 */
-			slot1_partition: partition@3f000 {
-				label = "image-1";
-				reg = <0x0003f000 0x00037000>;
-			};
-
-			/* Reserve 32 kB for the scratch partition */
-			scratch_partition: partition@76000 {
-				label = "image-scratch";
-				reg = <0x00076000 0x00008000>;
-			};
-
-			/* Set 8Kb of storage at the end of the 512KB of flash */
-			storage_partition: partition@7e000 {
-				label = "storage";
-				reg = <0x0007e000 0x00002000>;
-			};
-		};
 	};
 };
 

dts/arm/silabs/efr32bg27.dtsi

@@ -13,40 +13,6 @@
 		write-block-size = <4>;
 		erase-block-size = <8192>;
 		reg = <0x08000000 DT_SIZE_K(768)>;
-
-		partitions {
-			/* Reserve 32 kB for the bootloader */
-			boot_partition: partition@0 {
-				label = "mcuboot";
-				reg = <0x0 0x00008000>;
-				read-only;
-			};
-
-			/* Reserve 320 kB for the application in slot 0 */
-			slot0_partition: partition@8000 {
-				label = "image-0";
-				reg = <0x00008000 0x00050000>;
-			};
-
-			/* Reserve 320 kB for the application in slot 1 */
-			slot1_partition: partition@58000 {
-				label = "image-1";
-				reg = <0x00058000 0x00050000>;
-			};
-
-			/* Reserve 32 kB for the scratch partition */
-			scratch_partition: partition@a8000 {
-				label = "image-scratch";
-				reg = <0x000a8000 0x00008000>;
-			};
-
-			/* Set 64Kb of storage at the end of the 768KB of flash */
-			storage_partition: partition@b0000 {
-				label = "storage";
-				reg = <0x000b0000 0x00010000>;
-			};
-
-		};
 	};
 };