SoC: SAM3x and SAM4: Add the Flash Controller to the DT

This commit adds Device-Tree instances of the Flash controller
to the SAM3X, SAM4E and SAM4S series. The Flash-Controller
is used to get the unique device identifier.

Signed-off-by: Alexander Wachter <[email protected]>

Author: alexanderwachter

dts/arm/atmel/sam3x.dtsi

@@ -35,6 +35,17 @@
 	};
 
 	soc {
+		/* Only used for HWINFO device ID */
+		flash-controller@400e0a00 {
+			compatible = "atmel,sam-flash-controller";
+			label = "FLASH_CTRL";
+			reg = <0x400e0a00 0x200>;
+			peripheral-id = <6>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		wdog: watchdog@400e1a50 {
 			compatible = "atmel,sam-watchdog";
 			reg = <0x400e1a50 0xc>;

dts/arm/atmel/sam4e.dtsi

@@ -34,6 +34,17 @@
 	};
 
 	soc {
+		/* Only used for HWINFO device ID */
+		flash-controller@400e0a00 {
+			compatible = "atmel,sam-flash-controller";
+			label = "FLASH_CTRL";
+			reg = <0x400e0a00 0x200>;
+			peripheral-id = <6>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		wdog: watchdog@400e1850 {
 			compatible = "atmel,sam-watchdog";
 			reg = <0x400e1850 0x10>;

dts/arm/atmel/sam4s.dtsi

@@ -35,6 +35,17 @@
 	};
 
 	soc {
+		/* Only used for HWINFO device ID */
+		flash-controller@400e0a00 {
+			compatible = "atmel,sam-flash-controller";
+			label = "FLASH_CTRL";
+			reg = <0x400e0a00 0x200>;
+			peripheral-id = <6>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		wdog: watchdog@400e1450 {
 			compatible = "atmel,sam-watchdog";
 			reg = <0x400e1450 0xc>;

soc/arm/atmel_sam/sam3x/dts_fixup.h

@@ -68,4 +68,7 @@
 #define DT_WDT_SAM_LABEL        DT_ATMEL_SAM_WATCHDOG_400E1A50_LABEL
 #define DT_WDT_SAM_BASE_ADDRESS DT_ATMEL_SAM_WATCHDOG_400E1A50_BASE_ADDRESS
 
+#define DT_FLASH_DEV_BASE_ADDRESS DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_BASE_ADDRESS
+#define DT_FLASH_DEV_NAME         DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_LABEL
+
 /* End of SoC Level DTS fixup file */

soc/arm/atmel_sam/sam4e/dts_fixup.h

@@ -82,4 +82,7 @@
 #define DT_WDT_SAM_IRQ_PRIORITY              DT_ATMEL_SAM_WATCHDOG_400E1850_IRQ_0_PRIORITY
 #define DT_WDT_SAM_LABEL                     DT_ATMEL_SAM_WATCHDOG_400E1850_LABEL
 #define DT_WDT_SAM_BASE_ADDRESS              DT_ATMEL_SAM_WATCHDOG_400E1850_BASE_ADDRESS
+
+#define DT_FLASH_DEV_BASE_ADDRESS DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_BASE_ADDRESS
+#define DT_FLASH_DEV_NAME         DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_LABEL
 /* End of SoC Level DTS fixup file */

soc/arm/atmel_sam/sam4s/dts_fixup.h

@@ -66,4 +66,7 @@
 #define DT_WDT_SAM_IRQ_PRIORITY DT_ATMEL_SAM_WATCHDOG_400E1450_IRQ_0_PRIORITY
 #define DT_WDT_SAM_LABEL        DT_ATMEL_SAM_WATCHDOG_400E1450_LABEL
 #define DT_WDT_SAM_BASE_ADDRESS DT_ATMEL_SAM_WATCHDOG_400E1450_BASE_ADDRESS
+
+#define DT_FLASH_DEV_BASE_ADDRESS DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_BASE_ADDRESS
+#define DT_FLASH_DEV_NAME         DT_ATMEL_SAM_FLASH_CONTROLLER_400E0A00_LABEL
 /* End of SoC Level DTS fixup file */