boards: clean up CDC ACM configuration for nRF52840 based boards

Remove CDC ACM UART devicetree nodes, chosen properties and explicit
USB support configuration in favor of generic CDC ACM shield.
For console support via USB CDC ACM, in-tree samples for this boards
is to be built as follows:

west build -b nrf52840dongle_nrf52840
  samples/basic/threads -- -DSHIELD=cdc_acm_console

For shell support via USB CDC ACM, in-tree samples for this boards
is to be built as follows:

west build -b bl654_usb
  samples/subsys/shell/shell_module -- -DSHIELD=cdc_acm_shell

Signed-off-by: Johann Fischer <[email protected]>

Author: jfischer-no

boards/arm/arduino_nano_33_ble/Kconfig.board

@@ -5,16 +5,6 @@ config BOARD_ARDUINO_NANO_33_BLE
 	bool "Arduino Nano 33 BLE board"
 	depends on SOC_NRF52840_QIAA
 
-config BOARD_ARDUINO_NANO_33_BLE_EN_USB_CONSOLE
-	bool "Sends the console output over the USB port"
-	depends on BOARD_ARDUINO_NANO_33_BLE
-	select SERIAL
-	select USB_DEVICE_STACK
-	select CONSOLE
-	select PRINTK
-	select UART_INTERRUPT_DRIVEN
-	select USB_UART_CONSOLE
-
 config BOARD_ARDUINO_NANO_33_BLE_INIT_SENSORS
 	bool "Initializes the internal I2C sensors on the board"
 	depends on BOARD_ARDUINO_NANO_33_BLE

boards/arm/bl654_usb/Kconfig.defconfig

@@ -23,16 +23,6 @@ config FLASH_LOAD_OFFSET
 	default 0x1000
 	depends on !USE_DT_CODE_PARTITION
 
-if USB_DEVICE_STACK
-
-config USB_UART_CONSOLE
-	default y
-
-config UART_LINE_CTRL
-	default y
-
-endif # USB_DEVICE_STACK
-
 if IEEE802154
 
 config IEEE802154_NRF5

boards/arm/bl654_usb/bl654_usb.dts

@@ -14,9 +14,6 @@
 	chosen {
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
-		zephyr,console = &bl654_cdc_acm_uart;
-		zephyr,shell-uart = &bl654_cdc_acm_uart;
-		zephyr,bt-c2h-uart = &bl654_cdc_acm_uart;
 		zephyr,code-partition = &slot0_partition;
 	};
 
@@ -104,9 +101,4 @@
 zephyr_udc0: &usbd {
 	compatible = "nordic,nrf-usbd";
 	status = "okay";
-
-	bl654_cdc_acm_uart: bl654_cdc_acm_uart {
-		compatible = "zephyr,cdc-acm-uart";
-		label = "CDC_ACM_0";
-	};
 };

boards/arm/bl654_usb/bl654_usb_defconfig

@@ -16,9 +16,6 @@ CONFIG_CONSOLE=y
 # Enable GPIO
 CONFIG_GPIO=y
 
-# Enable USB
-CONFIG_USB_DEVICE_STACK=y
-
 # Additional board options
 CONFIG_GPIO_AS_PINRESET=y
 

boards/arm/degu_evk/Kconfig.defconfig

@@ -8,22 +8,6 @@ if BOARD_DEGU_EVK
 config BOARD
 	default "degu_evk"
 
-if USB_DEVICE_STACK
-
-config USB_DEVICE_PRODUCT
-	default "Degu Evaluation Kit"
-
-config USB_UART_CONSOLE
-	default y
-
-config UART_INTERRUPT_DRIVEN
-	default y
-
-config UART_LINE_CTRL
-	default y
-
-endif # USB_DEVICE_STACK
-
 if DISK_DRIVER_FLASH
 
 config DISK_FLASH_DEV_NAME

boards/arm/degu_evk/degu_evk.dts

@@ -14,8 +14,8 @@
 	chosen {
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
-		zephyr,console = &degu_cdc_acm_uart;
-		zephyr,shell-uart = &degu_cdc_acm_uart;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
 		zephyr,code-partition = &slot0_partition;
 	};
 
@@ -143,9 +143,4 @@
 zephyr_udc0: &usbd {
 	compatible = "nordic,nrf-usbd";
 	status = "okay";
-
-	degu_cdc_acm_uart: degu_cdc_acm_uart {
-		compatible = "zephyr,cdc-acm-uart";
-		label = "CDC_ACM_0";
-	};
 };

boards/arm/degu_evk/degu_evk_defconfig

@@ -12,9 +12,6 @@ CONFIG_SERIAL=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 
-# enable USB
-CONFIG_USB_DEVICE_STACK=y
-
 # additional board options
 CONFIG_GPIO=y
 CONFIG_GPIO_AS_PINRESET=y

boards/arm/nrf52840dongle_nrf52840/Kconfig.defconfig

@@ -24,14 +24,6 @@ config FLASH_LOAD_OFFSET
 	default 0x1000
 	depends on BOARD_HAS_NRF5_BOOTLOADER && !USE_DT_CODE_PARTITION
 
-if USB_DEVICE_STACK
-
-# Enable UART driver, needed for CDC ACM
-config SERIAL
-	default y
-
-endif # USB_DEVICE_STACK
-
 config BT_CTLR
 	default BT