dts: posix: Add DTS support for POSIX architecture

Added device tree support for POSIX architecture based boards.

Signed-off-by: Jan Van Winkel <[email protected]>

CODEOWNERS

@@ -179,6 +179,7 @@
 /dts/bindings/*/sifive*                   @mateusz-holenko @kgugala @pgielda @nategraff-sifive
 /dts/bindings/*/litex*                    @mateusz-holenko @kgugala @pgielda
 /dts/bindings/*/vexriscv*                 @mateusz-holenko @kgugala @pgielda
+/dts/posix/                               @aescolar @vanwinkeljan
 /ext/hal/atmel/asf/sam/include/same70*/   @aurel32
 /ext/hal/atmel/asf/sam0/include/samr21/   @benpicco
 /ext/hal/cmsis/                           @MaureenHelm @galak

boards/posix/native_posix/Kconfig.board

@@ -3,6 +3,7 @@
 config BOARD_NATIVE_POSIX
 	bool "Native POSIX"
 	depends on SOC_POSIX
+	select HAS_DTS
 	select NATIVE_POSIX_TIMER
 	select NATIVE_POSIX_CONSOLE
 	help

boards/posix/native_posix/dts_fixup.h

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2019 Jan Van Winkel ([email protected])
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#define DT_FLASH_DEV_NAME   DT_ZEPHYR_NATIVE_POSIX_FLASH_CONTROLLER_0_LABEL
+#define DT_UART_0_DEV_NAME  DT_ZEPHYR_NATIVE_POSIX_UART_1_LABEL
+

boards/posix/native_posix/native_posix.dts

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2019 Jan Van Winkel ([email protected])
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <posix/posix.dtsi>
+
+/ {
+	model = "Native POSIX Board";
+	compatible = "zephyr,posix";
+
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,flash = &flash0;
+	};
+
+
+	flash-controller@0 {
+		compatible = "zephyr,native-posix-flash-controller";
+		reg = <0x00000000 DT_SIZE_K(2048)>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		label = "flash_ctrl";
+
+		flash0: flash@0 {
+			status = "ok";
+			compatible = "soc-nv-flash";
+			label = "flash";
+			erase-block-size = <1>;
+			write-block-size = <1>;
+			reg = <0x00000000 DT_SIZE_K(2048)>;
+
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				boot_partition: partition@0 {
+					label = "mcuboot";
+					reg = <0x000000000 0x0000C000>;
+				};
+				slot0_partition: partition@c000 {
+					label = "image-0";
+					reg = <0x0000C000 0x000069000>;
+				};
+				slot1_partition: partition@75000 {
+					label = "image-1";
+					reg = <0x00075000 0x000069000>;
+				};
+				scratch_partition: partition@de000 {
+					label = "image-scratch";
+					reg = <0x000de000 0x0001e000>;
+				};
+				storage_partition: partition@fc000 {
+					label = "storage";
+					reg = <0x000fc000 0x00004000>;
+				};
+			};
+		};
+	};
+
+	uart0: uart@1 {
+		status = "ok";
+		compatible = "zephyr,native-posix-uart";
+		reg = <1 0>;
+		label = "UART_0";
+	};
+};

drivers/serial/Kconfig.native_posix

@@ -12,13 +12,6 @@ config UART_NATIVE_POSIX
 
 if UART_NATIVE_POSIX
 
-config UART_NATIVE_POSIX_PORT_0_NAME
-	string "Port 0 Device Name"
-	default "UART_0"
-	help
-	  This is the device name for the first UART, and is included in the
-	  device struct.
-
 choice
 	prompt "Native UART Port 0 connection"
 	default NATIVE_UART_0_ON_OWN_PTY

drivers/serial/uart_native_posix.c

@@ -201,8 +201,7 @@ static int np_uart_0_init(struct device *dev)
 	d = (struct native_uart_status *)dev->driver_data;
 
 	if (IS_ENABLED(CONFIG_NATIVE_UART_0_ON_OWN_PTY)) {
-		int tty_fn = open_tty(d, CONFIG_UART_NATIVE_POSIX_PORT_0_NAME,
-				      auto_attach);
+		int tty_fn = open_tty(d, DT_UART_0_DEV_NAME, auto_attach);
 
 		d->in_fd = tty_fn;
 		d->out_fd = tty_fn;
@@ -337,7 +336,7 @@ static int np_uart_tty_poll_in(struct device *dev, unsigned char *p_char)
 }
 
 DEVICE_AND_API_INIT(uart_native_posix0,
-	    CONFIG_UART_NATIVE_POSIX_PORT_0_NAME, &np_uart_0_init,
+	    DT_UART_0_DEV_NAME, &np_uart_0_init,
 	    (void *)&native_uart_status_0, NULL,
 	    PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 	    &np_uart_driver_api_0);

dts/bindings/flash_controller/zephyr,native-posix-flash-controller.yaml

@@ -0,0 +1,16 @@
+---
+title: Native POSIX Flash Controller
+version: 0.1
+
+description: >
+    This binding gives a base representation of the Native POSIX flash
+    controller
+
+inherits:
+    !include flash-controller.yaml
+
+properties:
+    compatible:
+      constraint: "zephyr,native-posix-flash-controller"
+
+...

dts/bindings/serial/zephyr,native-posix-uart.yaml

@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2019, Jan Van Winkel ([email protected])
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: Native POSIX UART
+version: 0.1
+
+description: >
+    This binding gives a base representation of the Native POSIX UART
+
+inherits:
+    !include uart.yaml
+
+properties:
+    compatible:
+      constraint: "zephyr,native-posix-uart"
+...

dts/posix/posix.dtsi

@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2019 Jan Van Winkel ([email protected])
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "skeleton.dtsi"
+#include <mem.h>
+

include/arch/posix/arch.h

@@ -17,6 +17,9 @@
 #ifndef ZEPHYR_INCLUDE_ARCH_POSIX_ARCH_H_
 #define ZEPHYR_INCLUDE_ARCH_POSIX_ARCH_H_
 
+/* Add include for DTS generated information */
+#include <generated_dts_board.h>
+
 #include <toolchain.h>
 #include <irq.h>
 #include <arch/posix/asm_inline.h>