Added Adafruit Feather RP2040, Adafruit KB2040 and Added neopixel driver to support RP2040

Documentation/components/drivers/character/ws2812.rst

@@ -0,0 +1,32 @@
+===========
+ws2812 Drivers
+===========
+
+This driver allows control of any smart pixels that use the ws2812
+protocol.  It supports pixel chains that use normal RGB pixels or
+newer RGBW pixels.
+
+The current driver does not support mixed RGB and RGBW pixels in a
+single chain.
+
+The NuttX ws2812 driver is split into two parts:
+
+#. An "upper half", generic driver that provides the common
+   interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+   low-level formatting and output.
+
+Files supporting ws2812 can be found in the following locations:
+
+-  **Interface Definition**. The header file for the NuttX ws2812
+   driver reside at ``include/nuttx/leds/ws2812.h``. This header
+   file includes both the application level interface to the ws2812
+   driver as well as the interface between the "upper half" and
+   "lower half" drivers. The ws2812 module uses a standard character
+   driver framework.
+-  **"Upper Half" Driver**. The generic, "upper half" ws2812 driver
+   resides at ``drivers/leds/ws2812.c``.
+-  **"Lower Half" Drivers**. Platform-specific ws2812 drivers reside
+   in ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>*
+   directory for the specific processor *<architecture>* and for
+   the specific *<chip>* ws2812 peripheral devices.

Kconfig

@@ -1220,7 +1220,7 @@ endif # DEBUG_LCD
 config DEBUG_LEDS
 	bool "Low-level LED Debug Features"
 	default n
-	depends on ARCH_HAVE_LEDS
+	depends on ARCH_HAVE_LEDS || WS2812
 	---help---
 		Enable LED driver debug features.
 

arch/arm/src/rp2040/Kconfig

@@ -141,7 +141,7 @@ config RP2040_I2C_DRIVER
 
 endif
 
-config RP2040_PWM
+menuconfig RP2040_PWM
 	bool "PWM"
 	select PWM
 	---help---
@@ -210,7 +210,7 @@ config PWM_MULTICHAN
 			drives GPIO pin 13 or 29 with the B channel.
 
 	config RP2040_PWM7
-		bool "PWM7 (Pin 14  and  15)"
+		bool "PWM7"
 		---help---
 			Drives GPIO pin 14 with the A channel, and
 			drives GPIO pin 15 with the B channel.
@@ -281,3 +281,14 @@ config RP2040_SPISD_SPI_CH
 		Select spi channel number to use spi sd card.
 
 endif # SPISD Configuration
+
+config RP2040_BOARD_HAS_WS2812
+	bool "Has ws2812 pixels"
+	default n
+	depends on WS2812
+
+menuconfig RP2040_WS2812_GPIO_PIN
+	int "GPIO pin for ws2812 pixels"
+	default 0
+	range 0 29
+	depends on RP2040_BOARD_HAS_WS2812

arch/arm/src/rp2040/Make.defs

@@ -66,6 +66,10 @@ ifeq ($(CONFIG_USBDEV),y)
 CHIP_CSRCS += rp2040_usbdev.c
 endif
 
+ifeq ($(CONFIG_WS2812),y)
+CHIP_CSRCS += rp2040_ws2812.c
+endif
+
 ifeq ($(CONFIG_RP2040_FLASH_BOOT),y)
 ifneq ($(PICO_SDK_PATH),)
 include chip/boot2/Make.defs

arch/arm/src/rp2040/rp2040_dmac.c

@@ -372,7 +372,7 @@ void rp2040_rxdmasetup(DMA_HANDLE handle, uintptr_t paddr, uintptr_t maddr,
  * Name: rp2040_txdmasetup
  *
  * Description:
- *   Configure an TX (memory-to-memory) DMA before starting the transfer.
+ *   Configure an TX (memory-to-peripheral) DMA before starting the transfer.
  *
  * Input Parameters:
  *   paddr  - Peripheral address (destination)

arch/arm/src/rp2040/rp2040_dmac.h

@@ -207,7 +207,7 @@ void rp2040_rxdmasetup(DMA_HANDLE handle, uintptr_t paddr, uintptr_t maddr,
  * Name: rp2040_txdmasetup
  *
  * Description:
- *   Configure an TX (memory-to-memory) DMA before starting the transfer.
+ *   Configure an TX (memory-to-peripheral) DMA before starting the transfer.
  *
  * Input Parameters:
  *   paddr  - Peripheral address (destination)

arch/arm/src/rp2040/rp2040_ws2812.h

@@ -0,0 +1,95 @@
+/****************************************************************************
+ * arch/arm/src/rp2040/rp2040_ws2812.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_RP2040_RP2040_WS2812_H
+#define __ARCH_ARM_SRC_RP2040_RP2040_WS2812_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <debug.h>
+#include <stdbool.h>
+
+#ifndef __ASSEMBLY__
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+#ifdef CONFIG_WS2812
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_ws2812_setup
+ *
+ * Description:
+ *   Initialize and register the ws2812 driver.
+ *
+ * Input Parameters:
+ *   Path to the ws2812 device  (e.g. "/dev/leds0")
+ *   Port number for the ws2812 chain
+ *   The number of pixels in the chain
+ *   Whether ws2812s have white LEDs
+ *
+ * Returned Value:
+ *   An opaque pointer that can be passed to rp2040_ws2812_teardown on
+ *   success or NULL (with errno set) on failure
+ ****************************************************************************/
+
+FAR void * rp2040_ws2812_setup(FAR const char *path,
+                               int             port,
+                               uint16_t        pixel_count,
+                               bool            has_white);
+
+/****************************************************************************
+ * Name: rp2040_ws2812_release
+ *
+ * Description:
+ *   This function releases the internal memory structures created when
+ *   a driver is opened.  It will fail with an error -EBUSY the driver
+ *   is open when it is called.
+ *
+ * Input Parameters:
+ *   driver      - Opaque pointer returned by rp2040_ws2812_setup.
+ *
+ * Returned Value:
+ *   OK on success or an ERROR on failure
+ *
+ ****************************************************************************/
+
+int rp2040_ws2812_release(FAR void * driver);
+
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_ARM_SRC_RP2040_RP2040_I2C_H */

arch/arm/src/rp2040/rp2040_ws2812.pio

@@ -0,0 +1,46 @@
+; arch/arm/src/rp2040/rp2040_ws2812.pio
+;
+; Adapted from code release under the BSD-3-Clause license
+; supplied by Raspberry Pi (Trading) Ltd.
+;
+;   Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+;
+; This code was compiled with pioasm and the results included
+; in "arch/arm/src/rp2040/rp2040_ws2812.c".  This file is
+; supplied for documentation purposes only
+;
+; Each bit of the input word generaes one of two patterns for output:
+;
+;  clock    +-----+-----+-----+-----+-----+-----+-----+-----+-----+
+|           |    T1     |          T2           |       T3        |
+;  
+;           +-----------+
+;  zero-bit |           |                                         |
+;                       +-----------------------------------------+         
+;
+;           +-----------------------------------+
+;  one-bit  |                                   |                 |
+;                                               +-----------------+
+;
+;  Each clock tick should be ~ 139 nS (7.2 Mhz)
+;
+;  A zero bit is 0.278 µs high and 1.123 µs low.
+;  A one  bit is 0.973 µs high and 0.417 µs low.
+
+;
+.program ws2812
+.side_set 1
+
+.define public T1 2
+.define public T2 5
+.define public T3 3
+
+.wrap_target
+bitloop:
+    out x, 1       side 0 [T3 - 1] ; Side-set still takes place when instruction stalls
+    jmp !x do_zero side 1 [T1 - 1] ; Branch on the bit we shifted out. Positive pulse
+do_one:
+    jmp  bitloop   side 1 [T2 - 1] ; Continue driving high, for a long pulse
+do_zero:
+    nop            side 0 [T2 - 1] ; Or drive low, for a short pulse
+.wrap

boards/Kconfig

@@ -1472,6 +1472,20 @@ config ARCH_BOARD_PIMORONI_TINY2040
 		Support is derived from Raspberry Pi Pico support.
 		STATUS:  Work has just began on this port.
 
+config ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
+	bool "Adafruit Feather RP2040 board"
+	depends on ARCH_CHIP_RP2040
+	---help---
+		This is a port to the Adafruit Feather RP2040 board.
+		Support is derived from Raspberry Pi Pico support.
+
+config ARCH_BOARD_ADAFRUIT_KB2040
+	bool "Adafruit KB2040 board"
+	depends on ARCH_CHIP_RP2040
+	---help---
+		This is a port to the Adafruit KB2040 board.
+		Support is derived from Raspberry Pi Pico support.
+
 config ARCH_BOARD_RX65N
 	bool "RX65N renesas board"
 	depends on ARCH_CHIP_R5F565NEDDFC
@@ -2602,6 +2616,8 @@ config ARCH_BOARD
 	default "intel64-qemu"             if ARCH_BOARD_INTEL64_QEMU
 	default "raspberrypi-pico"         if ARCH_BOARD_RASPBERRYPI_PICO
 	default "pimoroni-tiny2040"        if ARCH_BOARD_PIMORONI_TINY2040
+	default "adafruit-feather-rp2040"  if ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
+	default "adafruit-kb2040"          if ARCH_BOARD_ADAFRUIT_KB2040
 	default "rx65n"                    if ARCH_BOARD_RX65N
 	default "rx65n-rsk1mb"             if ARCH_BOARD_RX65N_RSK1MB
 	default "rx65n-rsk2mb"             if ARCH_BOARD_RX65N_RSK2MB
@@ -2935,6 +2951,12 @@ endif
 if ARCH_BOARD_PIMORONI_TINY2040
 source "boards/arm/rp2040/pimoroni-tiny2040/Kconfig"
 endif
+if ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
+source "boards/arm/rp2040/adafruit-feather-rp2040/Kconfig"
+endif
+if ARCH_BOARD_ADAFRUIT_KB2040
+source "boards/arm/rp2040/adafruit-kb2040/Kconfig"
+endif
 if ARCH_BOARD_ARDUINO_DUE
 source "boards/arm/sam34/arduino-due/Kconfig"
 endif

boards/arm/rp2040/adafruit-feather-rp2040/Kconfig

@@ -0,0 +1,342 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
+
+config RP2040_FLASH_BOOT
+	bool "flash boot"
+	default y
+	---help---
+		If y, the built binary can be used for flash boot.
+		If not, the binary is for SRAM boot.
+
+config RP2040_FLASH_CHIP
+	string "flash chip name"
+	default "w25q080"
+	---help---
+		Name of NOR flash device connected to RP2040 SoC.
+		(Used to choose the secondary boot loader.)
+		Basically this option should not be changed.
+
+config RP2040_UF2_BINARY
+	bool "uf2 binary format"
+	default y
+	---help---
+		Create nuttx.uf2 binary format used on RP2040 based arch.
+
+config RP2040_UART0_GPIO
+	int "UART0 GPIO pin assign (0,12,28 or -1:no assign)"
+	default 0
+	range -1 29
+	depends on RP2040_UART0
+
+config RP2040_UART1_GPIO
+	int "UART1 GPIO pin assign (8,20,24 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_UART1
+
+config RP2040_I2C0_GPIO
+	int "I2C0 GPIO pin assign (0,8,12,20,24,28 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_I2C0
+
+config RP2040_I2C1_GPIO
+	int "I2C1 GPIO pin assign (2,6,10,18,26 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_I2C1
+
+if RP2040_PWM0
+	config RP2040_PWM0A_GPIO
+		int "PWM0 channel 1 GPIO pin assign (0 or -1:no assign)"
+		default 0
+		range -1 16
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 0 or 16, any other value disables the output.
+
+	config RP2040_PWM0A_INVERT
+		bool "PWM0 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM0B_GPIO
+			int "PWM0 channel 2 GPIO pin assign (1 or -1:no assign)"
+			default 1
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 1 or 17, any other value disables the output.
+
+		config RP2040_PWM0B_INVERT
+			bool "PWM0 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM0_PHASE_CORRECT
+		bool "PWM0 phase correct"
+		default n
+endif
+
+if RP2040_PWM1
+	config RP2040_PWM1A_GPIO
+		int "PWM1 channel 1 GPIO pin assign (2, 18 or -1:no assign)"
+		default 2
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 2 or 18, any other value disables the output.
+
+	config RP2040_PWM1A_INVERT
+		bool "PWM1 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM1B_GPIO
+			int "PWM1 channel 2 GPIO pin assign (3, 19 or -1:no assign)"
+			default 3
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 3 or 19, any other value disables the output.
+
+		config RP2040_PWM1B_INVERT
+			bool "PWM1 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM1_PHASE_CORRECT
+		bool "PWM1 phase correct"
+		default n
+endif
+
+if RP2040_PWM2
+	config RP2040_PWM2A_GPIO
+		int "PWM2 channel 1 GPIO pin assign (20 or -1:no assign)"
+		default 4
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 4 or 20, any other value disables the output.
+		
+	config RP2040_PWM2A_INVERT
+		bool "PWM2 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	config RP2040_PWM2_PHASE_CORRECT
+		bool "PWM2 phase correct"
+		default n
+endif
+
+if RP2040_PWM3
+	config RP2040_PWM3A_GPIO
+		int "PWM3 channel 1 GPIO pin assign (6 or -1:no assign)"
+		default 6
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 6 or 22, any other value disables the output.
+		
+	config RP2040_PWM3A_INVERT
+		bool "PWM3 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM3B_GPIO
+			int "PWM3 channel 2 GPIO pin assign (7 or -1:no assign)"
+			default 7
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 7 or 23, any other value disables the output.
+
+		config RP2040_PWM3B_INVERT
+			bool "PWM3 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM3_PHASE_CORRECT
+		bool "PWM3 phase correct"
+		default n
+endif
+
+if RP2040_PWM4
+	config RP2040_PWM4A_GPIO
+		int "PWM4 channel 1 GPIO pin assign (8, 24 or -1:no assign)"
+		default 8
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 8 or 24, any other value disables the output.
+		
+	config RP2040_PWM4A_INVERT
+		bool "PWM4 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM4B_GPIO
+			int "PWM4 channel 2 GPIO pin assign (9, 25 or -1:no assign)"
+			default 9
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 9 or 25, any other value disables the output.
+
+		config RP2040_PWM4B_INVERT
+			bool "PWM4 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM4_PHASE_CORRECT
+		bool "PWM4 phase correct"
+		default n
+endif
+
+if RP2040_PWM5
+	config RP2040_PWM5A_GPIO
+		int "PWM5 channel 1 GPIO pin assign (10, 26 or -1:no assign)"
+		default 10
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 10 or 26, any other value disables the output.
+		
+	config RP2040_PWM5A_INVERT
+		bool "PWM5 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM5B_GPIO
+			int "PWM5 channel 2 GPIO pin assign (11, 27 or -1:no assign)"
+			default 11
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 11 or 27, any other value disables the output.
+
+		config RP2040_PWM5B_INVERT
+			bool "PWM5 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM5_PHASE_CORRECT
+		bool "PWM5 phase correct"
+		default n
+endif
+
+if RP2040_PWM6
+	config RP2040_PWM6A_GPIO
+		int "PWM6 channel 1 GPIO pin assign (12, 28 or -1:no assign)"
+		default 12
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 12 or 28, any other value disables the output.
+		
+	config RP2040_PWM6A_INVERT
+		bool "PWM6 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM6B_GPIO
+			int "PWM6 channel 2 GPIO pin assign (13, 29 or -1:no assign)"
+			default 13
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 13 or 29, any other value disables the output.
+
+		config RP2040_PWM6B_INVERT
+			bool "PWM6 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM6_PHASE_CORRECT
+		bool "PWM6 phase correct"
+		default n
+endif
+
+config RP2040_SPI0_GPIO
+	int "SPI0 GPIO pin assign (0,16 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_SPI0
+
+config RP2040_SPI1_GPIO
+	int "SPI1 GPIO pin assign (8,24,28 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_SPI1
+
+config RP2040_LCD_SPI_CH
+	int "RP2040 LCD SPI channel number"
+	default 0
+	range 0 1
+	depends on LCD
+	---help---
+		Select SPI channel number to use LCD display.
+
+config RP2040_ENC28J60_SPI_CH
+	int "ENC28J60 SPI channel number"
+	default 1
+	range 0 1
+	depends on ENC28J60
+	---help---
+		Select SPI channel number to use ENC28J60 ethernet.
+
+config RP2040_ENC28J60_INTR_GPIO
+	int "ENC28J60 interrupt GPIO pin assign"
+	default -1
+	range -1 29
+	depends on ENC28J60
+
+config RP2040_ENC28J60_RESET_GPIO
+	int "ENC28J60 reset GPIO pin assign (optional)"
+	default -1
+	range -1 29
+	depends on ENC28J60
+
+endif

boards/arm/rp2040/adafruit-feather-rp2040/README.txt

@@ -0,0 +1,180 @@
+README
+======
+
+This directory contains the port of NuttX to the Adafruit Feather RP2040.
+See https://www.adafruit.com/product/4884 for information
+about Adafruit Feather RP2040.
+
+Currently only the following devices are supported.
+
+  Supported:
+  - UART  (console port)
+    - GPIO 0 (UART0 TX) and GPIO 1 (UART0 RX) are used for the console.
+  - I2C
+  - SPI
+  - DMAC
+  - PWM
+  - USB device
+    - MSC, CDC/ACM serial and these composite device are supported.
+    - CDC/ACM serial device can be used for the console.
+  - PIO (RP2040 Programmable I/O)
+  - Flash ROM Boot
+  - SRAM Boot
+    - If Pico SDK is available, nuttx.uf2 file which can be used in
+      BOOTSEL mode will be created.
+  - BMP180 sensor at I2C0 (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
+  - INA219 sensor / module (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
+  - Pico Display Pack (ST7789 LCD)
+    - RGB leds and buttons are not supported yet.
+  - Pico Audio Pack (PCM5100A I2S DAC)
+    - I2S interface is realized by PIO.
+
+  Not supported:
+  - All other devices
+
+Installation
+============
+
+1. Download Raspberry Pi Pico SDK
+
+  $ git clone -b 1.1.2 https://github.com/raspberrypi/pico-sdk.git
+
+2. Set PICO_SDK_PATH environment variable
+
+  $ export PICO_SDK_PATH=<absolute_path_to_pico-sdk_directory>
+
+3. Configure and build NuttX
+
+  $ git clone https://github.com/apache/incubator-nuttx.git nuttx
+  $ git clone https://github.com/apache/incubator-nuttx-apps.git apps
+  $ cd nuttx
+  $ make distclean
+  $ ./tools/configure.sh raspberrypi-pico:nsh
+  $ make V=1
+
+4. Connect Adafruit Feather RP2040 board to USB port while pressing BOOTSEL.
+   The board will be detected as USB Mass Storage Device.
+   Then copy "nuttx.uf2" into the device.
+   (Same manner as the standard Pico SDK applications installation.)
+
+5. To access the console, GPIO 0 and 1 pins must be connected to the
+   device such as USB-serial converter.
+
+   `usbnsh` configuration provides the console access by USB CDC/ACM serial
+   devcice.  The console is available by using a terminal software on the USB
+   host.
+
+Defconfigs
+==========
+
+- nsh
+    Minimum configuration with NuttShell
+
+- nshsram
+    Load NuttX binary to SRAM
+  
+- smp
+    Enable SMP mode. Both Core 0 and Core 1 are used by NuttX.
+
+- ssd1306
+    SSD1306 OLED display (I2C) test configuration
+    Connection:
+       SSD1306       Raspberry Pi Pico
+           GND ----- GND            (Pin 3 or 38 or ...)
+           VCC ----- 3V3 OUT        (Pin 36)
+           SDA ----- GP4 (I2C0 SDA) (Pin 6)
+           SCL ----- GP5 (I2C0 SCL) (Pin 7)
+           
+- lcd1602 
+    LCD 1602 Segment LCD Disaply (I2C)
+    Connection:
+    PCF8574 BackPack Raspberry Pi Pico
+           GND ----- GND            (Pin 3 or 38 or ...)
+           VCC ----- 5V Vbus        (Pin 40)
+           SDA ----- GP4 (I2C0 SDA) (Pin 6)
+           SCL ----- GP5 (I2C0 SCL) (Pin 7)
+- spisd
+    SD card support (SPI connection)
+    Connection:
+      SD card slot   Raspberry Pi Pico
+       DAT2          (NC)
+       DAT3/CS ----- GP17 (SPI0 CSn) (Pin 22)
+       CMD /DI ----- GP19 (SPI0 TX)  (Pin 25)
+       VDD     ----- 3V3 OUT         (Pin 36)
+       CLK/SCK ----- GP18 (SPI0 SCK) (Pin 24)
+       VSS     ----- GND             (Pin 3 or 38 or ...)
+       DAT0/DO ----- GP16 (SPI0 RX)  (Pin 21)
+       DAT1          (NC)
+    * Card hot swapping is not supported.
+
+- st7735
+    st7735 SPI LCD support      
+    Connection:
+      st7735         Raspberry Pi Pico
+           GND ----- GND             (Pin 3 or 38 or ...)
+           VCC ----- 5V Vbus         (Pin 40)
+           SDA ----- GP15 (SPI1 TX)  (Pin 20)
+           SCK ----- GP14 (SPI1 SCK) (Pin 19)
+            CS ----- GP13 (SPI1 CSn) (Pin 17)
+       AO(D/C) ----- GP12 (SPI1 RX)  (Pin 16)
+            BL ----- GP11            (Pin 15)
+         RESET ----- GP10            (Pin 14)  
+
+- enc28j60
+    ENC28J60 SPI ethernet controller support
+      - IP address is configured by DHCP.
+      - DNS address is 8.8.8.8 (CONFIG_NETINIT_DNSIPADDR)
+      - NTP client is enabled.
+    Connection:
+      ENC28J60       Raspberry Pi Pico
+           GND ----- GND             (Pin 3 or 38 or ...)
+           3.3 ----- 3V3 OUT         (Pin 36)
+            SI ----- GP15 (SPI1 TX)  (Pin 20)
+           SCK ----- GP14 (SPI1 SCK) (Pin 19)
+            CS ----- GP13 (SPI1 CSn) (Pin 17)
+            SO ----- GP12 (SPI1 RX)  (Pin 16)
+           INT ----- GP11            (Pin 15)
+         RESET ----- GP10            (Pin 14)
+
+- displaypack
+    Pico Display Pack support
+    See the following page for connection:
+      https://shop.pimoroni.com/products/pico-display-pack
+
+- audiopack
+    Pico Audio Pack support
+    See the following page for connection:
+      https://shop.pimoroni.com/products/pico-audio-pack
+    SD card interface is also enabled.
+
+- usbnsh
+    USB CDC/ACM serial console with NuttShell
+
+- usbmsc
+    USB MSC and CDC/ACM support
+    `msconn` and `sercon` commands enable the MSC and CDC/ACM devices.
+    The MSC support provides the interface to the SD card with SPI,
+    so the SD card slot connection like spisd configuration is required.
+
+- composite
+    USB composite device (MSC + CDC/ACM) support
+    `conn` command enables the composite device.
+
+License exceptions
+==================
+
+The following files are originated from the files in Pico SDK.
+So, the files are licensed under 3-Clause BSD same as Pico SDK.
+
+- arch/arm/src/rp2040/rp2040_clock.c
+- arch/arm/src/rp2040/rp2040_pll.c
+- arch/arm/src/rp2040/rp2040_xosc.c
+  - These are created by referring the Pico SDK clock initialization.
+
+- arch/arm/src/rp2040/rp2040_pio.c
+- arch/arm/src/rp2040/rp2040_pio.h
+- arch/arm/src/rp2040/rp2040_pio_instructions.h
+  - These provide the similar APIs to Pico SDK's hardware_pio APIs.
+
+- arch/arm/src/rp2040/hardware/*.h
+  - These are generated from rp2040.svd originally provided in Pico SDK.

boards/arm/rp2040/adafruit-feather-rp2040/configs/audiopack/defconfig

@@ -0,0 +1,76 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_AUDIO_FORMAT_MP3 is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NSH_DISABLE_MB is not set
+# CONFIG_NSH_DISABLE_MH is not set
+# CONFIG_NSH_DISABLE_MW is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_AUDIO=y
+CONFIG_AUDIO_I2S=y
+CONFIG_AUDIO_I2SCHAR=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_AUDIO=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NXPLAYER_DEFAULT_MEDIADIR="/mnt/sd0"
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_I2S=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_HPWORK=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NXPLAYER=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/composite/defconfig

@@ -0,0 +1,79 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_COMPOSITE=y
+CONFIG_COMPOSITE_IAD=y
+CONFIG_COMPOSITE_MSFT_OS_DESCRIPTORS=y
+CONFIG_COMPOSITE_PRODUCTID=0x2022
+CONFIG_COMPOSITE_SERIALSTR="12345"
+CONFIG_COMPOSITE_VENDORID=0x03eb
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_USBSERIAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_COMPOSITE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_USBDEV_COMPOSITE=y
+CONFIG_USBMSC=y
+CONFIG_USBMSC_COMPOSITE=y
+CONFIG_USBMSC_NOT_STALL_BULKEP=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/displaypack/defconfig

@@ -0,0 +1,103 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_DEV_CONSOLE is not set
+# CONFIG_EXAMPLES_NXLINES_DEFAULT_COLORS is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NXFONTS_DISABLE_16BPP is not set
+# CONFIG_NX_DISABLE_16BPP is not set
+# CONFIG_NX_PACKEDMSFIRST is not set
+# CONFIG_NX_WRITEONLY is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_NX=y
+CONFIG_EXAMPLES_NXDEMO=y
+CONFIG_EXAMPLES_NXDEMO_BPP=16
+CONFIG_EXAMPLES_NXHELLO=y
+CONFIG_EXAMPLES_NXHELLO_BPP=16
+CONFIG_EXAMPLES_NXLINES=y
+CONFIG_EXAMPLES_NXLINES_BGCOLOR=0x0320
+CONFIG_EXAMPLES_NXLINES_BORDERCOLOR=0xffe0
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=4
+CONFIG_EXAMPLES_NXLINES_BPP=16
+CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR=0xf7bb
+CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xffe0
+CONFIG_EXAMPLES_NX_BPP=16
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_I2C=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_DEV=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_MAXCONTRAST=255
+CONFIG_LCD_NOGETRUN=y
+CONFIG_LCD_ST7789=y
+CONFIG_LCD_ST7789_FREQUENCY=64000000
+CONFIG_LCD_ST7789_XOFFSET=53
+CONFIG_LCD_ST7789_XRES=135
+CONFIG_LCD_ST7789_YOFFSET=40
+CONFIG_LCD_ST7789_YRES=240
+CONFIG_MQ_MAXMSGSIZE=64
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_USBCONSOLE=y
+CONFIG_NX=y
+CONFIG_NXFONTS_PACKEDMSFIRST=y
+CONFIG_NXFONT_SANS40X49B=y
+CONFIG_NX_BLOCKING=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_I2CTOOL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_VIDEO_FB=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/enc28j60/defconfig

@@ -0,0 +1,88 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_ZERO=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_ENC28J60=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NET=y
+CONFIG_NETDB_DNSCLIENT=y
+CONFIG_NETDB_DNSSERVER_NOADDR=y
+CONFIG_NETDEVICES=y
+CONFIG_NETDEV_PHY_IOCTL=y
+CONFIG_NETINIT_DHCPC=y
+CONFIG_NETINIT_DNS=y
+CONFIG_NETINIT_DNSIPADDR=0x08080808
+CONFIG_NETINIT_NOMAC=y
+CONFIG_NET_BROADCAST=y
+CONFIG_NET_ICMP=y
+CONFIG_NET_ICMP_SOCKET=y
+CONFIG_NET_LOOPBACK=y
+CONFIG_NET_ROUTE=y
+CONFIG_NET_TCP=y
+CONFIG_NET_UDP=y
+CONFIG_NET_UDP_CHECKSUMS=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_ENC28J60_INTR_GPIO=11
+CONFIG_RP2040_ENC28J60_RESET_GPIO=10
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=12
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_HPWORK=y
+CONFIG_SCHED_LPWORK=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_DHCPC_RENEW=y
+CONFIG_SYSTEM_NETDB=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NTPC=y
+CONFIG_SYSTEM_PING=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_SYSTEM_SYSTEM=y
+CONFIG_SYSTEM_TELNET_CLIENT=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WQUEUE_NOTIFIER=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/lcd1602/defconfig

@@ -0,0 +1,61 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_SLCD=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD_BACKPACK=y
+CONFIG_LCD_LCD1602=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_I2C0=y
+CONFIG_RP2040_I2C0_GPIO=4
+CONFIG_RP2040_I2C=y
+CONFIG_RP2040_I2C_DRIVER=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SLCD=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/nsh/defconfig

@@ -0,0 +1,53 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/nshsram/defconfig

@@ -0,0 +1,53 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_RP2040_FLASH_BOOT is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/smp/defconfig

@@ -0,0 +1,59 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SMP=y
+CONFIG_SMP_NCPUS=2
+CONFIG_STACK_COLORATION=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SYSTEM=y
+CONFIG_SYSTEM_TASKSET=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_TESTING_SMP=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/spisd/defconfig

@@ -0,0 +1,65 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/ssd1306/defconfig

@@ -0,0 +1,80 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_EXAMPLES_NXLINES_DEFAULT_COLORS is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NX_DISABLE_1BPP is not set
+# CONFIG_NX_PACKEDMSFIRST is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_NX=y
+CONFIG_EXAMPLES_NXDEMO=y
+CONFIG_EXAMPLES_NXHELLO=y
+CONFIG_EXAMPLES_NXHELLO_BPP=1
+CONFIG_EXAMPLES_NXLINES=y
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=1
+CONFIG_EXAMPLES_NXLINES_BPP=1
+CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xff
+CONFIG_EXAMPLES_NXLINES_LINEWIDTH=1
+CONFIG_EXAMPLES_NX_BPP=1
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_DEV=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_MAXCONTRAST=255
+CONFIG_LCD_SH1106_OLED_132=y
+CONFIG_LCD_SSD1306_I2C=y
+CONFIG_MQ_MAXMSGSIZE=64
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NX=y
+CONFIG_NXFONTS_PACKEDMSFIRST=y
+CONFIG_NXFONT_SANS20X26=y
+CONFIG_NX_BLOCKING=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_I2C0=y
+CONFIG_RP2040_I2C0_GPIO=4
+CONFIG_RP2040_I2C=y
+CONFIG_RP2040_I2C_DRIVER=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_I2CTOOL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/st7735/defconfig

@@ -0,0 +1,64 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_PORTRAIT=y
+CONFIG_LCD_ST7735=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=12
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_VIDEO_FB=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/usbmsc/defconfig

@@ -0,0 +1,72 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_USBSERIAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_CDCACM=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_SYSTEM_USBMSC=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_USBMSC=y
+CONFIG_USBMSC_NOT_STALL_BULKEP=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/usbnsh/defconfig

@@ -0,0 +1,57 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_DEV_CONSOLE is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_RP2040_UART0 is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_USBCONSOLE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/waveshare-lcd-1.14/defconfig

@@ -0,0 +1,100 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_EXAMPLES_NXLINES_DEFAULT_COLORS is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NXFONTS_DISABLE_16BPP is not set
+# CONFIG_NX_DISABLE_16BPP is not set
+# CONFIG_NX_PACKEDMSFIRST is not set
+# CONFIG_NX_WRITEONLY is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_NX=y
+CONFIG_EXAMPLES_NXDEMO=y
+CONFIG_EXAMPLES_NXDEMO_BPP=16
+CONFIG_EXAMPLES_NXHELLO=y
+CONFIG_EXAMPLES_NXHELLO_BPP=16
+CONFIG_EXAMPLES_NXLINES=y
+CONFIG_EXAMPLES_NXLINES_BGCOLOR=0x0320
+CONFIG_EXAMPLES_NXLINES_BORDERCOLOR=0xffe0
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=4
+CONFIG_EXAMPLES_NXLINES_BPP=16
+CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR=0xf7bb
+CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xffe0
+CONFIG_EXAMPLES_NX_BPP=16
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_I2C=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_DEV=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_MAXCONTRAST=255
+CONFIG_LCD_NOGETRUN=y
+CONFIG_LCD_ST7789=y
+CONFIG_LCD_ST7789_FREQUENCY=64000000
+CONFIG_LCD_ST7789_XOFFSET=53
+CONFIG_LCD_ST7789_XRES=135
+CONFIG_LCD_ST7789_YOFFSET=40
+CONFIG_LCD_ST7789_YRES=240
+CONFIG_MQ_MAXMSGSIZE=64
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NX=y
+CONFIG_NXFONTS_PACKEDMSFIRST=y
+CONFIG_NXFONT_SANS40X49B=y
+CONFIG_NX_BLOCKING=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_LCD_SPI_CH=1
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=8
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_I2CTOOL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_VIDEO_FB=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/configs/waveshare-lcd-1.3/defconfig

@@ -0,0 +1,97 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_EXAMPLES_NXLINES_DEFAULT_COLORS is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NXFONTS_DISABLE_16BPP is not set
+# CONFIG_NX_DISABLE_16BPP is not set
+# CONFIG_NX_PACKEDMSFIRST is not set
+# CONFIG_NX_WRITEONLY is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-feather-rp2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_FEATHER_RP2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_NX=y
+CONFIG_EXAMPLES_NXDEMO=y
+CONFIG_EXAMPLES_NXDEMO_BPP=16
+CONFIG_EXAMPLES_NXHELLO=y
+CONFIG_EXAMPLES_NXHELLO_BPP=16
+CONFIG_EXAMPLES_NXLINES=y
+CONFIG_EXAMPLES_NXLINES_BGCOLOR=0x0320
+CONFIG_EXAMPLES_NXLINES_BORDERCOLOR=0xffe0
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=4
+CONFIG_EXAMPLES_NXLINES_BPP=16
+CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR=0xf7bb
+CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xffe0
+CONFIG_EXAMPLES_NX_BPP=16
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_I2C=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_DEV=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_MAXCONTRAST=255
+CONFIG_LCD_NOGETRUN=y
+CONFIG_LCD_ST7789=y
+CONFIG_LCD_ST7789_FREQUENCY=64000000
+CONFIG_LCD_ST7789_YRES=240
+CONFIG_MQ_MAXMSGSIZE=64
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NX=y
+CONFIG_NXFONTS_PACKEDMSFIRST=y
+CONFIG_NXFONT_SANS40X49B=y
+CONFIG_NX_BLOCKING=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_LCD_SPI_CH=1
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=8
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_I2CTOOL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_VIDEO_FB=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=16

boards/arm/rp2040/adafruit-feather-rp2040/include/board.h

@@ -0,0 +1,116 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/include/board.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_BOARD_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "rp2040_i2cdev.h"
+#include "rp2040_spidev.h"
+#include "rp2040_i2sdev.h"
+
+#include "rp2040_spisd.h"
+
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+
+#define MHZ                     1000000
+
+#define BOARD_XOSC_FREQ         (12 * MHZ)
+#define BOARD_PLL_SYS_FREQ      (125 * MHZ)
+#define BOARD_PLL_USB_FREQ      (48 * MHZ)
+
+#define BOARD_REF_FREQ          (12 * MHZ)
+#define BOARD_SYS_FREQ          (125 * MHZ)
+#define BOARD_PERI_FREQ         (125 * MHZ)
+#define BOARD_USB_FREQ          (48 * MHZ)
+#define BOARD_ADC_FREQ          (48 * MHZ)
+#define BOARD_RTC_FREQ          46875
+
+#define BOARD_UART_BASEFREQ     BOARD_PERI_FREQ
+
+#define BOARD_TICK_CLOCK        (1 * MHZ)
+
+/* GPIO definitions *********************************************************/
+
+#define BOARD_GPIO_LED_PIN       13
+#define BOARD_NGPIOOUT           1
+#define BOARD_NGPIOIN            1
+#define BOARD_NGPIOINT           1
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_boardearlyinitialize
+ *
+ * Description:
+ *
+ ****************************************************************************/
+
+void rp2040_boardearlyinitialize(void);
+
+/****************************************************************************
+ * Name: rp2040_boardinitialize
+ *
+ * Description:
+ *
+ ****************************************************************************/
+
+void rp2040_boardinitialize(void);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_BOARD_H */

boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_i2cdev.h

@@ -0,0 +1,72 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_i2cdev.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2CDEV_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2CDEV_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_i2cdev_initialize
+ *
+ * Description:
+ *   Initialize i2c driver and register the /dev/i2c device.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_I2C_DRIVER
+int board_i2cdev_initialize(int bus);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2CDEV_H */

boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_i2sdev.h

@@ -0,0 +1,72 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_i2sdev.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2SDEV_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2SDEV_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_i2sdev_initialize
+ *
+ * Description:
+ *   Initialize i2s driver and register the /dev/audio/pcm0 device.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_I2S
+int board_i2sdev_initialize(int bus);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_I2SDEV_H */

boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_spidev.h

@@ -0,0 +1,69 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_spidev.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPIDEV_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPIDEV_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_spidev_initialize
+ *
+ * Description:
+ *   Initialize spi driver and register the /dev/spi device.
+ *
+ ****************************************************************************/
+
+int board_spidev_initialize(int bus);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPIDEV_H */

boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_spisd.h

@@ -0,0 +1,83 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/include/rp2040_spisd.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPISD_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPISD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_spisd_initialize
+ *
+ * Description:
+ *   Initialize the SPI-based SD card.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPISD
+int board_spisd_initialize(int minor, int bus);
+#endif
+
+/****************************************************************************
+ * Name: board_spisd_status
+ *
+ * Description:
+ *   Get the status whether SD Card is present or not.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPISD
+uint8_t board_spisd_status(struct spi_dev_s *dev, uint32_t devid);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_INCLUDE_RP2040_SPISD_H */

boards/arm/rp2040/adafruit-feather-rp2040/scripts/Make.defs

@@ -0,0 +1,45 @@
+############################################################################
+# boards/arm/rp2040/adafruit-feather-rp2040/scripts/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/.config
+include $(TOPDIR)/tools/Config.mk
+include $(TOPDIR)/tools/rp2040/Config.mk
+include $(TOPDIR)/arch/arm/src/armv6-m/Toolchain.defs
+
+ifeq ($(CONFIG_RP2040_FLASH_BOOT),y)
+  LDSCRIPT = adafruit-feather-rp2040-flash.ld
+else
+  LDSCRIPT = adafruit-feather-rp2040-sram.ld
+endif
+
+ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
+
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
+AFLAGS := $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048

boards/arm/rp2040/adafruit-feather-rp2040/scripts/adafruit-feather-rp2040-flash.ld

@@ -0,0 +1,112 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/scripts/adafruit-feather-rp2040-flash.ld
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+MEMORY
+{
+  flash (rx) : ORIGIN = 0x10000000, LENGTH = 2048K
+  sram (rwx) : ORIGIN = 0x20000000, LENGTH = 264K
+}
+
+OUTPUT_ARCH(arm)
+EXTERN(_vectors)
+ENTRY(_stext)
+
+SECTIONS
+{
+    .flash_begin : {
+        __flash_binary_start = .;
+    } > flash
+
+    .boot2 : {
+        __boot2_start__ = .;
+        KEEP (*(.boot2))
+        __boot2_end__ = .;
+    } > flash
+
+    .text : {
+        _stext = ABSOLUTE(.);
+        *(.vectors)
+        *(.text .text.*)
+        *(.fixup)
+        *(.gnu.warning)
+        *(.rodata .rodata.*)
+        *(.gnu.linkonce.t.*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.got)
+        *(.gcc_except_table)
+        *(.gnu.linkonce.r.*)
+        _etext = ABSOLUTE(.);
+    } > flash
+
+    .init_section : {
+        _sinit = ABSOLUTE(.);
+        *(.init_array .init_array.*)
+        _einit = ABSOLUTE(.);
+    } > flash
+
+    .ARM.extab : {
+        *(.ARM.extab*)
+    } > flash
+
+    __exidx_start = ABSOLUTE(.);
+    .ARM.exidx : {
+        *(.ARM.exidx*)
+    } > flash
+    __exidx_end = ABSOLUTE(.);
+
+    _eronly = ABSOLUTE(.);
+
+    .ram_vectors (COPY) : {
+        *(.ram_vectors)
+    } > sram
+
+    .data : {
+        _sdata = ABSOLUTE(.);
+        *(.data .data.*)
+        *(.gnu.linkonce.d.*)
+        CONSTRUCTORS
+        . = ALIGN(4);
+        _edata = ABSOLUTE(.);
+    } > sram AT > flash
+
+    .bss : {
+        _sbss = ABSOLUTE(.);
+        *(.bss .bss.*)
+        *(.gnu.linkonce.b.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = ABSOLUTE(.);
+    } > sram
+
+    /* Stabs debugging sections. */
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+}

boards/arm/rp2040/adafruit-feather-rp2040/scripts/adafruit-feather-rp2040-sram.ld

@@ -0,0 +1,97 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/scripts/adafruit-feather-rp2040-sram.ld
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+MEMORY
+{
+  sram (rwx) : ORIGIN = 0x20000000, LENGTH = 264K
+}
+
+OUTPUT_ARCH(arm)
+EXTERN(_vectors)
+ENTRY(_stext)
+
+SECTIONS
+{
+    .text : {
+        _stext = ABSOLUTE(.);
+        rp2040_start.o(.text)
+        . = ALIGN(256);
+        *(.vectors)
+        *(.text .text.*)
+        *(.fixup)
+        *(.gnu.warning)
+        *(.rodata .rodata.*)
+        *(.gnu.linkonce.t.*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.got)
+        *(.gcc_except_table)
+        *(.gnu.linkonce.r.*)
+        _etext = ABSOLUTE(.);
+    } > sram
+
+    .init_section : {
+        _sinit = ABSOLUTE(.);
+        *(.init_array .init_array.*)
+        _einit = ABSOLUTE(.);
+    } > sram
+
+    .ARM.extab : {
+        *(.ARM.extab*)
+    } > sram
+
+    __exidx_start = ABSOLUTE(.);
+    .ARM.exidx : {
+        *(.ARM.exidx*)
+    } > sram
+    __exidx_end = ABSOLUTE(.);
+
+    .data : {
+        _sdata = ABSOLUTE(.);
+        *(.data .data.*)
+        *(.gnu.linkonce.d.*)
+        CONSTRUCTORS
+        . = ALIGN(4);
+        _edata = ABSOLUTE(.);
+    } > sram
+
+    .bss : {
+        _sbss = ABSOLUTE(.);
+        *(.bss .bss.*)
+        *(.gnu.linkonce.b.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = ABSOLUTE(.);
+    } > sram
+
+    /* Stabs debugging sections. */
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+}

boards/arm/rp2040/adafruit-feather-rp2040/src/Make.defs

@@ -0,0 +1,41 @@
+############################################################################
+# boards/arm/rp2040/adafruit-feather-rp2040/src/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/Make.defs
+
+CSRCS = rp2040_boardinitialize.c
+CSRCS += rp2040_appinit.c
+CSRCS += rp2040_bringup.c
+
+ifeq ($(CONFIG_BOARDCTL_RESET),y)
+CSRCS += rp2040_reset.c
+endif
+
+ifeq ($(CONFIG_SPI),y)
+CSRCS += rp2040_spi.c
+endif
+
+ifeq ($(CONFIG_DEV_GPIO),y)
+CSRCS += rp2040_gpio.c
+endif
+
+DEPPATH += --dep-path board
+VPATH += :board
+CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_appinit.c

@@ -0,0 +1,76 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_appinit.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/board.h>
+
+#include <sys/types.h>
+
+#include "rp2040_pico.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_app_initialize
+ *
+ * Description:
+ *   Perform application specific initialization.  This function is never
+ *   called directly from application code, but only indirectly via the
+ *   (non-standard) boardctl() interface using the command BOARDIOC_INIT.
+ *
+ * Input Parameters:
+ *   arg - The boardctl() argument is passed to the board_app_initialize()
+ *         implementation without modification.  The argument has no
+ *         meaning to NuttX; the meaning of the argument is a contract
+ *         between the board-specific initialization logic and the
+ *         matching application logic.  The value could be such things as a
+ *         mode enumeration value, a set of DIP switch switch settings, a
+ *         pointer to configuration data read from a file or serial FLASH,
+ *         or whatever you would like to do with it.  Every implementation
+ *         should accept zero/NULL as a default configuration.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   any failure to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int board_app_initialize(uintptr_t arg)
+{
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+  /* Board initialization already performed by board_late_initialize() */
+
+  return OK;
+#else
+  /* Perform board-specific initialization */
+
+  return rp2040_bringup();
+#endif
+}

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_boardinitialize.c

@@ -0,0 +1,166 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_boardinitialize.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "arm_internal.h"
+#include "rp2040_gpio.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_boardearlyinitialize
+ *
+ * Description:
+ *
+ ****************************************************************************/
+
+void rp2040_boardearlyinitialize(void)
+{
+  rp2040_gpio_initialize();
+
+  /* Disable IE on GPIO 26-29 */
+
+  clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(26));
+  clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(27));
+  clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(28));
+  clrbits_reg32(RP2040_PADS_BANK0_GPIO_IE, RP2040_PADS_BANK0_GPIO(29));
+
+  /* Set board LED pin */
+
+  rp2040_gpio_init(BOARD_GPIO_LED_PIN);
+  rp2040_gpio_setdir(BOARD_GPIO_LED_PIN, true);
+  rp2040_gpio_put(BOARD_GPIO_LED_PIN, true);
+
+  /* Set default UART pin */
+
+#if defined(CONFIG_RP2040_UART0) && CONFIG_RP2040_UART0_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO,
+                           RP2040_GPIO_FUNC_UART);      /* TX */
+  rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 1,
+                           RP2040_GPIO_FUNC_UART);      /* RX */
+#ifdef CONFIG_SERIAL_OFLOWCONTROL
+  rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 2,
+                           RP2040_GPIO_FUNC_UART);      /* CTS */
+#endif
+#ifdef CONFIG_SERIAL_IFLOWCONTROL
+  rp2040_gpio_set_function(CONFIG_RP2040_UART0_GPIO + 3,
+                           RP2040_GPIO_FUNC_UART);      /* RTS */
+#endif
+#endif
+
+#if defined(CONFIG_RP2040_UART1) && CONFIG_RP2040_UART1_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO,
+                           RP2040_GPIO_FUNC_UART);      /* TX */
+  rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 1,
+                           RP2040_GPIO_FUNC_UART);      /* RX */
+#ifdef CONFIG_SERIAL_OFLOWCONTROL
+  rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 2,
+                           RP2040_GPIO_FUNC_UART);      /* CTS */
+#endif
+#ifdef CONFIG_SERIAL_IFLOWCONTROL
+  rp2040_gpio_set_function(CONFIG_RP2040_UART1_GPIO + 3,
+                           RP2040_GPIO_FUNC_UART);      /* RTS */
+#endif
+#endif
+}
+
+/****************************************************************************
+ * Name: rp2040_boardinitialize
+ *
+ * Description:
+ *
+ ****************************************************************************/
+
+void rp2040_boardinitialize(void)
+{
+  /* Set default I2C pin */
+
+#if defined(CONFIG_RP2040_I2C0) && CONFIG_RP2040_I2C0_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_I2C0_GPIO,
+                           RP2040_GPIO_FUNC_I2C);       /* SDA */
+  rp2040_gpio_set_function(CONFIG_RP2040_I2C0_GPIO + 1,
+                           RP2040_GPIO_FUNC_I2C);       /* SCL */
+
+  rp2040_gpio_set_pulls(CONFIG_RP2040_I2C0_GPIO, true, false);  /* Pull up */
+  rp2040_gpio_set_pulls(CONFIG_RP2040_I2C0_GPIO + 1, true, false);
+#endif
+
+#if defined(CONFIG_RP2040_I2C1) &&  CONFIG_RP2040_I2C1_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_I2C1_GPIO,
+                           RP2040_GPIO_FUNC_I2C);       /* SDA */
+  rp2040_gpio_set_function(CONFIG_RP2040_I2C1_GPIO + 1,
+                           RP2040_GPIO_FUNC_I2C);       /* SCL */
+
+  rp2040_gpio_set_pulls(CONFIG_RP2040_I2C1_GPIO, true, false);  /* Pull up */
+  rp2040_gpio_set_pulls(CONFIG_RP2040_I2C1_GPIO + 1, true, false);
+#endif
+
+  /* Set default SPI pin */
+
+#if defined(CONFIG_RP2040_SPI0) && CONFIG_RP2040_SPI0_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO,
+                           RP2040_GPIO_FUNC_SPI);       /* RX */
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO + 2,
+                           RP2040_GPIO_FUNC_SPI);       /* SCK */
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI0_GPIO + 3,
+                           RP2040_GPIO_FUNC_SPI);       /* TX */
+
+  /* CSn is controlled by board-specific logic */
+
+  rp2040_gpio_init(CONFIG_RP2040_SPI0_GPIO + 1);        /* CSn */
+  rp2040_gpio_setdir(CONFIG_RP2040_SPI0_GPIO + 1, true);
+  rp2040_gpio_put(CONFIG_RP2040_SPI0_GPIO + 1, true);
+#endif
+
+#if defined(CONFIG_RP2040_SPI1) &&  CONFIG_RP2040_SPI1_GPIO >= 0
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO,
+                           RP2040_GPIO_FUNC_SPI);       /* RX */
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO + 2,
+                           RP2040_GPIO_FUNC_SPI);       /* SCK */
+  rp2040_gpio_set_function(CONFIG_RP2040_SPI1_GPIO + 3,
+                           RP2040_GPIO_FUNC_SPI);       /* TX */
+
+  /* CSn is controlled by board-specific logic */
+
+  rp2040_gpio_init(CONFIG_RP2040_SPI1_GPIO + 1);        /* CSn */
+  rp2040_gpio_setdir(CONFIG_RP2040_SPI1_GPIO + 1, true);
+  rp2040_gpio_put(CONFIG_RP2040_SPI1_GPIO + 1, true);
+#endif
+}

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_bringup.c

@@ -0,0 +1,466 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_bringup.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+#include <stddef.h>
+
+#include <nuttx/fs/fs.h>
+
+#include <arch/board/board.h>
+
+#include "rp2040_pico.h"
+
+#ifdef CONFIG_LCD_BACKPACK
+#include "rp2040_lcd_backpack.h"
+#endif
+
+#ifdef CONFIG_LCD
+#include <nuttx/board.h>
+#endif
+
+#ifdef CONFIG_LCD_DEV
+#include <nuttx/lcd/lcd_dev.h>
+#endif
+
+#ifdef CONFIG_VIDEO_FB
+#include <nuttx/video/fb.h>
+#endif
+
+#ifdef CONFIG_SENSORS_INA219
+#include <nuttx/sensors/ina219.h>
+#include "rp2040_ina219.h"
+#endif
+
+#ifdef CONFIG_SENSORS_BMP180
+#include <nuttx/sensors/bmp180.h>
+#include "rp2040_bmp180.h"
+#endif
+
+#ifdef CONFIG_RP2040_PWM
+#include "rp2040_pwm.h"
+#include "rp2040_pwmdev.h"
+#endif
+
+#if defined(CONFIG_RP2040_BOARD_HAS_WS2812) && defined(CONFIG_WS2812)
+#include "rp2040_ws2812.h"
+#endif
+
+#ifdef CONFIG_WS2812_HAS_WHITE
+#define HAS_WHITE true
+#else /* CONFIG_WS2812_HAS_WHITE */
+#define HAS_WHITE false
+#endif /* CONFIG_WS2812_HAS_WHITE */
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_bringup
+ ****************************************************************************/
+
+int rp2040_bringup(void)
+{
+  int ret = 0;
+
+#ifdef CONFIG_RP2040_I2C_DRIVER
+  #ifdef CONFIG_RP2040_I2C0
+  ret = board_i2cdev_initialize(0);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize I2C0.\n");
+    }
+  #endif
+
+  #ifdef CONFIG_RP2040_I2C1
+  ret = board_i2cdev_initialize(1);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize I2C1.\n");
+    }
+  #endif
+#endif
+
+#ifdef CONFIG_RP2040_SPI_DRIVER
+  #ifdef CONFIG_RP2040_SPI0
+  ret = board_spidev_initialize(0);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize SPI0.\n");
+    }
+  #endif
+
+  #ifdef CONFIG_RP2040_SPI1
+  ret = board_spidev_initialize(1);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize SPI1.\n");
+    }
+  #endif
+#endif
+
+#ifdef CONFIG_RP2040_PWM
+#  ifdef CONFIG_RP2040_PWM0
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(0,
+                                 CONFIG_RP2040_PWM0A_GPIO,
+                                 CONFIG_RP2040_PWM0B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM0A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM0B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM0_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(0,
+                                 CONFIG_RP2040_PWM0A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM0A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM0_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM0.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM1
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(1,
+                                 CONFIG_RP2040_PWM1A_GPIO,
+                                 CONFIG_RP2040_PWM1B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM1A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM1B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM1_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(1,
+                                 CONFIG_RP2040_PWM1A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM1A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM1_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM1.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM2
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(2,
+                                 CONFIG_RP2040_PWM2A_GPIO,
+                                 CONFIG_RP2040_PWM2B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM2A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM2B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM2_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(2,
+                                 CONFIG_RP2040_PWM2A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM2A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM2_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM2.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM3
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(3,
+                                 CONFIG_RP2040_PWM3A_GPIO,
+                                 CONFIG_RP2040_PWM3B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM3A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM3B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM3_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(3,
+                                 CONFIG_RP2040_PWM3A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM3A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM3_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM3.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM4
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(4,
+                                 CONFIG_RP2040_PWM4A_GPIO,
+                                 CONFIG_RP2040_PWM4B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM4A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM4B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM4_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(4,
+                                 CONFIG_RP2040_PWM4A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM4A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM4_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM4.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM5
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(5,
+                                 CONFIG_RP2040_PWM5A_GPIO,
+                                 CONFIG_RP2040_PWM5B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM5A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM5B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM5_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#  else
+  ret = rp2040_pwmdev_initialize(5,
+                                 CONFIG_RP2040_PWM5A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM5A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM5_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#  endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM5.\n");
+    }
+#  endif
+
+#  ifdef CONFIG_RP2040_PWM6
+#    if defined(CONFIG_PWM_NCHANNELS) && CONFIG_PWM_NCHANNELS == 2
+  ret = rp2040_pwmdev_initialize(6,
+                                 CONFIG_RP2040_PWM6A_GPIO,
+                                 CONFIG_RP2040_PWM6B_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM6A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM6B_INVERT
+                                  | RP2040_PWM_CSR_B_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM6_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    else
+  ret = rp2040_pwmdev_initialize(6,
+                                 CONFIG_RP2040_PWM6A_GPIO,
+                                 (0
+#      ifdef CONFIG_RP2040_PWM6A_INVERT
+                                  | RP2040_PWM_CSR_A_INV
+#      endif
+#      ifdef CONFIG_RP2040_PWM6_PHASE_CORRECT
+                                  | RP2040_PWM_CSR_PH_CORRECT
+#      endif
+                                 ));
+#    endif
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize PWM6.\n");
+    }
+#  endif
+#endif
+
+#ifdef CONFIG_RP2040_SPISD
+  /* Mount the SPI-based MMC/SD block driver */
+
+  ret = board_spisd_initialize(0, CONFIG_RP2040_SPISD_SPI_CH);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize SPI device to MMC/SD: %d\n",
+           ret);
+    }
+#endif
+
+#ifdef CONFIG_FS_PROCFS
+  /* Mount the procfs file system */
+
+  ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
+  if (ret < 0)
+    {
+      serr("ERROR: Failed to mount procfs at %s: %d\n", "/proc", ret);
+    }
+#endif
+
+#ifdef CONFIG_SENSORS_BMP180
+  /* Try to register BMP180 device in I2C0 */
+
+  ret = board_bmp180_initialize(0);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "Failed to initialize BMP180 driver: %d\n", ret);
+    }
+#endif
+
+#ifdef CONFIG_SENSORS_INA219
+  /* Configure and initialize the INA219 sensor in I2C0 */
+
+  ret = board_ina219_initialize(0);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: rp2040_ina219_initialize() failed: %d\n", ret);
+    }
+#endif
+
+#ifdef CONFIG_VIDEO_FB
+  ret = fb_register(0, 0);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize Frame Buffer Driver.\n");
+    }
+#elif defined(CONFIG_LCD)
+  ret = board_lcd_initialize();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize LCD.\n");
+    }
+#endif
+
+#ifdef CONFIG_LCD_DEV
+  ret = lcddev_register(0);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: lcddev_register() failed: %d\n", ret);
+    }
+#endif
+
+#ifdef CONFIG_LCD_BACKPACK
+  /* slcd:0, i2c:0, rows=2, cols=16 */
+
+  ret = board_lcd_backpack_init(0, 0, 2, 16);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "Failed to initialize PCF8574 LCD, error %d\n", ret);
+      return ret;
+    }
+#endif
+
+#ifdef CONFIG_RP2040_I2S
+  ret = board_i2sdev_initialize(0);
+  if (ret < 0)
+    {
+      _err("ERROR: Failed to initialize I2S.\n");
+    }
+#endif
+
+#ifdef CONFIG_DEV_GPIO
+  ret = rp2040_dev_gpio_init();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "Failed to initialize GPIO Driver: %d\n", ret);
+      return ret;
+    }
+#endif
+
+  /* Initialize board neo-pixel */
+
+#if defined(CONFIG_RP2040_BOARD_HAS_WS2812) && defined(CONFIG_WS2812)
+  rp2040_ws2812_setup("/dev/leds0",
+                      CONFIG_RP2040_WS2812_GPIO_PIN,
+                      CONFIG_WS2812_LED_COUNT,
+                      HAS_WHITE);
+#endif
+
+  return ret;
+}

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_gpio.c

@@ -0,0 +1,392 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_gpio.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <syslog.h>
+#include <nuttx/irq.h>
+#include <arch/irq.h>
+#include <assert.h>
+#include <debug.h>
+
+#include <nuttx/ioexpander/gpio.h>
+
+#include <arch/board/board.h>
+
+#include "arm_internal.h"
+#include "chip.h"
+#include "rp2040_gpio.h"
+
+#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
+
+/* Output pins. GPIO13 is onboard LED any other outputs could be used.
+ */
+
+#define GPIO_OUT1     13
+
+/* Input pins.
+ */
+
+#define GPIO_IN1      6
+
+/* Interrupt pins.
+ */
+
+#define GPIO_IRQPIN1  11
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct rp2040gpio_dev_s
+{
+  struct gpio_dev_s gpio;
+  uint8_t id;
+};
+
+struct rp2040gpint_dev_s
+{
+  struct rp2040gpio_dev_s rp2040gpio;
+  pin_interrupt_t callback;
+};
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+#if BOARD_NGPIOOUT > 0
+static int gpout_read(struct gpio_dev_s *dev, bool *value);
+static int gpout_write(struct gpio_dev_s *dev, bool value);
+#endif
+
+#if BOARD_NGPIOIN > 0
+static int gpin_read(struct gpio_dev_s *dev, bool *value);
+#endif
+
+#if BOARD_NGPIOINT > 0
+static int gpint_read(struct gpio_dev_s *dev, bool *value);
+static int gpint_attach(struct gpio_dev_s *dev,
+                        pin_interrupt_t callback);
+static int gpint_enable(struct gpio_dev_s *dev, bool enable);
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#if BOARD_NGPIOOUT > 0
+static const struct gpio_operations_s gpout_ops =
+{
+  .go_read   = gpout_read,
+  .go_write  = gpout_write,
+  .go_attach = NULL,
+  .go_enable = NULL,
+};
+
+/* This array maps the GPIO pins used as OUTPUT */
+
+static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] =
+{
+  GPIO_OUT1
+};
+
+static struct rp2040gpio_dev_s g_gpout[BOARD_NGPIOOUT];
+#endif
+
+#if BOARD_NGPIOIN > 0
+static const struct gpio_operations_s gpin_ops =
+{
+  .go_read   = gpin_read,
+  .go_write  = NULL,
+  .go_attach = NULL,
+  .go_enable = NULL,
+};
+
+/* This array maps the GPIO pins used as INTERRUPT INPUTS */
+
+static const uint32_t g_gpioinputs[BOARD_NGPIOIN] =
+{
+  GPIO_IN1
+};
+
+static struct rp2040gpio_dev_s g_gpin[BOARD_NGPIOIN];
+#endif
+
+#if BOARD_NGPIOINT > 0
+static const struct gpio_operations_s gpint_ops =
+{
+  .go_read   = gpint_read,
+  .go_write  = NULL,
+  .go_attach = gpint_attach,
+  .go_enable = gpint_enable,
+};
+
+/* This array maps the GPIO pins used as INTERRUPT INPUTS */
+
+static const uint32_t g_gpiointinputs[BOARD_NGPIOINT] =
+{
+  GPIO_IRQPIN1,
+};
+
+static struct rp2040gpint_dev_s g_gpint[BOARD_NGPIOINT];
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: gpout_read
+ ****************************************************************************/
+
+#if BOARD_NGPIOOUT > 0
+static int gpout_read(struct gpio_dev_s *dev, bool *value)
+{
+  struct rp2040gpio_dev_s *rp2040gpio =
+    (struct rp2040gpio_dev_s *)dev;
+
+  DEBUGASSERT(rp2040gpio != NULL && value != NULL);
+  DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOOUT);
+  gpioinfo("Reading...\n");
+
+  *value = rp2040_gpio_get(g_gpiooutputs[rp2040gpio->id]);
+  return OK;
+}
+
+/****************************************************************************
+ * Name: gpout_write
+ ****************************************************************************/
+
+static int gpout_write(struct gpio_dev_s *dev, bool value)
+{
+  struct rp2040gpio_dev_s *rp2040gpio =
+    (struct rp2040gpio_dev_s *)dev;
+
+  DEBUGASSERT(rp2040gpio != NULL);
+  DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOOUT);
+  gpioinfo("Writing %d\n", (int)value);
+
+  rp2040_gpio_put(g_gpiooutputs[rp2040gpio->id], value);
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: gpin_read
+ ****************************************************************************/
+
+#if BOARD_NGPIOIN > 0
+static int gpin_read(struct gpio_dev_s *dev, bool *value)
+{
+  struct rp2040gpio_dev_s *rp2040gpio =
+    (struct rp2040gpio_dev_s *)dev;
+
+  DEBUGASSERT(rp2040gpio != NULL && value != NULL);
+  DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOIN);
+  gpioinfo("Reading... pin %d\n", (int)g_gpioinputs[rp2040gpio->id]);
+
+  *value = rp2040_gpio_get(g_gpioinputs[rp2040gpio->id]);
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: rp2040gpio_interrupt
+ ****************************************************************************/
+
+#if BOARD_NGPIOINT > 0
+static int rp2040gpio_interrupt(int irq, void *context, void *arg)
+{
+  struct rp2040gpint_dev_s *rp2040gpint =
+    (struct rp2040gpint_dev_s *)arg;
+
+  DEBUGASSERT(rp2040gpint != NULL && rp2040gpint->callback != NULL);
+  gpioinfo("Interrupt! callback=%p\n", rp2040gpint->callback);
+
+  rp2040gpint->callback(&rp2040gpint->rp2040gpio.gpio,
+                       rp2040gpint->rp2040gpio.id);
+  return OK;
+}
+
+/****************************************************************************
+ * Name: gpint_read
+ ****************************************************************************/
+
+static int gpint_read(struct gpio_dev_s *dev, bool *value)
+{
+  struct rp2040gpint_dev_s *rp2040gpint =
+    (struct rp2040gpint_dev_s *)dev;
+
+  DEBUGASSERT(rp2040gpint != NULL && value != NULL);
+  DEBUGASSERT(rp2040gpint->rp2040gpio.id < BOARD_NGPIOINT);
+  gpioinfo("Reading int pin...\n");
+
+  *value = rp2040_gpio_get(g_gpiointinputs[rp2040gpint->rp2040gpio.id]);
+  return OK;
+}
+
+/****************************************************************************
+ * Name: gpint_attach
+ ****************************************************************************/
+
+static int gpint_attach(struct gpio_dev_s *dev,
+                        pin_interrupt_t callback)
+{
+  struct rp2040gpint_dev_s *rp2040gpint =
+    (struct rp2040gpint_dev_s *)dev;
+  int irq = g_gpiointinputs[rp2040gpint->rp2040gpio.id];
+  int ret;
+
+  gpioinfo("Attaching the callback\n");
+
+  /* Make sure the interrupt is disabled */
+
+  rp2040_gpio_disable_irq(irq);
+  ret = rp2040_gpio_irq_attach(irq,
+                               RP2040_GPIO_INTR_EDGE_LOW,
+                               rp2040gpio_interrupt,
+                               &g_gpint[rp2040gpint->rp2040gpio.id]);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: gpint_attach() failed: %d\n", ret);
+      return ret;
+    }
+
+  gpioinfo("Attach %p\n", callback);
+  rp2040gpint->callback = callback;
+  return OK;
+}
+
+/****************************************************************************
+ * Name: gpint_enable
+ ****************************************************************************/
+
+static int gpint_enable(struct gpio_dev_s *dev, bool enable)
+{
+  struct rp2040gpint_dev_s *rp2040gpint =
+    (struct rp2040gpint_dev_s *)dev;
+  int irq = g_gpiointinputs[rp2040gpint->rp2040gpio.id];
+
+  if (enable)
+    {
+      if (rp2040gpint->callback != NULL)
+        {
+          gpioinfo("Enabling the interrupt\n");
+
+          /* Configure the interrupt for rising edge */
+
+          rp2040_gpio_enable_irq(irq);
+        }
+    }
+  else
+    {
+      gpioinfo("Disable the interrupt\n");
+      rp2040_gpio_disable_irq(irq);
+    }
+
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_dev_gpio_init
+ ****************************************************************************/
+
+int rp2040_dev_gpio_init(void)
+{
+  int i;
+  int pincount = 0;
+
+#if BOARD_NGPIOOUT > 0
+  for (i = 0; i < BOARD_NGPIOOUT; i++)
+    {
+      /* Setup and register the GPIO pin */
+
+      g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
+      g_gpout[i].gpio.gp_ops     = &gpout_ops;
+      g_gpout[i].id              = i;
+      gpio_pin_register(&g_gpout[i].gpio, g_gpiooutputs[i]);
+
+      /* Configure the pins that will be used as output */
+
+      rp2040_gpio_init(g_gpiooutputs[i]);
+      rp2040_gpio_setdir(g_gpiooutputs[i], true);
+      rp2040_gpio_put(g_gpiooutputs[i], false);
+
+      pincount++;
+    }
+#endif
+
+  pincount = 0;
+
+#if BOARD_NGPIOIN > 0
+  for (i = 0; i < BOARD_NGPIOIN; i++)
+    {
+      /* Setup and register the GPIO pin */
+
+      g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
+      g_gpin[i].gpio.gp_ops     = &gpin_ops;
+      g_gpin[i].id              = i;
+      gpio_pin_register(&g_gpin[i].gpio, g_gpioinputs[i]);
+
+      /* Configure the pins that will be used as INPUT */
+
+      rp2040_gpio_init(g_gpioinputs[i]);
+
+      pincount++;
+    }
+#endif
+
+  pincount = 0;
+
+#if BOARD_NGPIOINT > 0
+  for (i = 0; i < BOARD_NGPIOINT; i++)
+    {
+      /* Setup and register the GPIO pin */
+
+      g_gpint[i].rp2040gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
+      g_gpint[i].rp2040gpio.gpio.gp_ops     = &gpint_ops;
+      g_gpint[i].rp2040gpio.id              = i;
+      gpio_pin_register(&g_gpint[i].rp2040gpio.gpio, g_gpiointinputs[i]);
+
+      /* Configure the pins that will be used as interrupt input */
+
+      rp2040_gpio_init(g_gpiointinputs[i]);
+
+      /* pull-up = false : pull-down = true */
+
+      rp2040_gpio_set_pulls(g_gpiointinputs[i], false, true);
+
+      pincount++;
+    }
+#endif
+
+  return OK;
+}
+#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_pico.h

@@ -0,0 +1,36 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_pico.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_RP2040_PICO_H
+#define __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_RP2040_PICO_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+int rp2040_bringup(void);
+
+#ifdef CONFIG_DEV_GPIO
+int rp2040_dev_gpio_init(void);
+#endif
+
+#endif /* __BOARDS_ARM_RP2040_ADAFRUIT_FEATHER_RP2040_PICO_H */

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_reset.c

@@ -0,0 +1,61 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_reset.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/board.h>
+#include <nuttx/arch.h>
+
+#ifdef CONFIG_BOARDCTL_RESET
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_reset
+ *
+ * Description:
+ *   Reset board.  Support for this function is required by board-level
+ *   logic if CONFIG_BOARDCTL_RESET is selected.
+ *
+ * Input Parameters:
+ *   status - Status information provided with the reset event.  This
+ *            meaning of this status information is board-specific.  If not
+ *            used by a board, the value zero may be provided in calls to
+ *            board_reset().
+ *
+ * Returned Value:
+ *   If this function returns, then it was not possible to power-off the
+ *   board due to some constraints.  The return value int this case is a
+ *   board-specific reason for the failure to shutdown.
+ *
+ ****************************************************************************/
+
+int board_reset(int status)
+{
+  up_systemreset();
+  return 0;
+}
+
+#endif /* CONFIG_BOARDCTL_RESET */

boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_spi.c

@@ -0,0 +1,150 @@
+/****************************************************************************
+ * boards/arm/rp2040/adafruit-feather-rp2040/src/rp2040_spi.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/spi/spi.h>
+#include <arch/board/board.h>
+
+#include "arm_internal.h"
+#include "chip.h"
+#include "rp2040_gpio.h"
+#include "hardware/rp2040_spi.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name:  rp2040_spi0/1select and rp2040_spi0/1status
+ *
+ * Description:
+ *   The external functions, rp2040_spi0/1select and rp2040_spi0/1status
+ *   must be provided by board-specific logic.
+ *   They are implementations of the select and status methods of the SPI
+ *   interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
+ *   All other methods (including rp2040_spibus_initialize()) are provided by
+ *   common RP2040 logic.  To use this common SPI logic on your board:
+ *
+ *   1. Provide logic in rp2040_boardinitialize() to configure SPI chip
+ *      select pins.
+ *   2. Provide rp2040_spi0/1select() and rp2040_spi0/1status()
+ *      functions in your board-specific logic.
+ *      These functions will perform chip selection and status operations
+ *      using GPIOs in the way your board is configured.
+ *   3. Add a calls to rp2040_spibus_initialize() in your low level
+ *      application initialization logic
+ *   4. The handle returned by rp2040_spibus_initialize() may then be used to
+ *      bind the SPI driver to higher level logic (e.g., calling
+ *      mmcsd_spislotinitialize(), for example, will bind the SPI driver to
+ *      the SPI MMC/SD driver).
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPI0
+void rp2040_spi0select(struct spi_dev_s *dev, uint32_t devid,
+                       bool selected)
+{
+  spiinfo("devid: %d CS: %s\n", (int)devid,
+          selected ? "assert" : "de-assert");
+
+  rp2040_gpio_put(CONFIG_RP2040_SPI0_GPIO + 1, !selected);
+}
+
+uint8_t rp2040_spi0status(struct spi_dev_s *dev, uint32_t devid)
+{
+  uint8_t ret = 0;
+
+#  if defined(CONFIG_RP2040_SPISD) && (CONFIG_RP2040_SPISD_SPI_CH == 0)
+  ret = board_spisd_status(dev, devid);
+#  endif
+  return ret;
+}
+
+#ifdef CONFIG_SPI_CMDDATA
+int rp2040_spi0cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd)
+{
+#ifdef CONFIG_LCD_ST7789
+  if (devid == SPIDEV_DISPLAY(0))
+    {
+      /*  This is the Data/Command control pad which determines whether the
+       *  data bits are data or a command.
+       */
+
+      rp2040_gpio_put(CONFIG_RP2040_SPI0_GPIO, !cmd);
+
+      return OK;
+    }
+#endif
+
+  return -ENODEV;
+}
+#endif
+#endif
+
+#ifdef CONFIG_RP2040_SPI1
+void rp2040_spi1select(struct spi_dev_s *dev, uint32_t devid,
+                       bool selected)
+{
+  spiinfo("devid: %d CS: %s\n", (int)devid,
+          selected ? "assert" : "de-assert");
+
+  rp2040_gpio_put(CONFIG_RP2040_SPI1_GPIO + 1, !selected);
+}
+
+uint8_t rp2040_spi1status(struct spi_dev_s *dev, uint32_t devid)
+{
+  uint8_t ret = 0;
+
+#  if defined(CONFIG_RP2040_SPISD) && (CONFIG_RP2040_SPISD_SPI_CH == 1)
+  ret = board_spisd_status(dev, devid);
+#  endif
+  return ret;
+}
+
+#ifdef CONFIG_SPI_CMDDATA
+int rp2040_spi1cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd)
+{
+#if defined (CONFIG_LCD_ST7789) || (CONFIG_LCD_ST7735)
+  if (devid == SPIDEV_DISPLAY(0))
+    {
+      /*  This is the Data/Command control pad which determines whether the
+       *  data bits are data or a command.
+       */
+
+      rp2040_gpio_put(CONFIG_RP2040_SPI1_GPIO, !cmd);
+
+      return OK;
+    }
+#endif
+
+  return -ENODEV;
+}
+#endif
+#endif

boards/arm/rp2040/adafruit-kb2040/Kconfig

@@ -0,0 +1,359 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_ADAFRUIT_KB2040
+
+config RP2040_FLASH_BOOT
+	bool "flash boot"
+	default y
+	---help---
+		If y, the built binary can be used for flash boot.
+		If not, the binary is for SRAM boot.
+
+config RP2040_FLASH_CHIP
+	string "flash chip name"
+	default "w25q080"
+	---help---
+		Name of NOR flash device connected to RP2040 SoC.
+		(Used to choose the secondary boot loader.)
+		Basically this option should not be changed.
+
+config RP2040_UF2_BINARY
+	bool "uf2 binary format"
+	default y
+	---help---
+		Create nuttx.uf2 binary format used on RP2040 based arch.
+
+config RP2040_UART0_GPIO
+	int "UART0 GPIO pin assign (0,12,16,28 or -1:no assign)"
+	default 0
+	range -1 29
+	depends on RP2040_UART0
+
+config RP2040_UART1_GPIO
+	int "UART1 GPIO pin assign (4,8,20,24 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_UART1
+
+config RP2040_I2C0_GPIO
+	int "I2C0 GPIO pin assign (0,4,8,12,28 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_I2C0
+
+config RP2040_I2C1_GPIO
+	int "I2C1 GPIO pin assign (2,6,10,18,26 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_I2C1
+
+if RP2040_PWM0
+	config RP2040_PWM0A_GPIO
+		int "PWM0 channel 1 GPIO pin assign (0, 16 or -1:no assign)"
+		default 0
+		range -1 16
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 0 or 16, any other value disables the output.
+
+	config RP2040_PWM0A_INVERT
+		bool "PWM0 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM0B_GPIO
+			int "PWM0 channel 2 GPIO pin assign (1 or -1:no assign)"
+			default 1
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 1 or 17, any other value disables the output.
+
+		config RP2040_PWM0B_INVERT
+			bool "PWM0 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM0_PHASE_CORRECT
+		bool "PWM0 phase correct"
+		default n
+endif
+
+if RP2040_PWM1
+	config RP2040_PWM1A_GPIO
+		int "PWM1 channel 1 GPIO pin assign (2, 18 or -1:no assign)"
+		default 2
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 2 or 18, any other value disables the output.
+
+	config RP2040_PWM1A_INVERT
+		bool "PWM1 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM1B_GPIO
+			int "PWM1 channel 2 GPIO pin assign (3, 19 or -1:no assign)"
+			default 3
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 3 or 19, any other value disables the output.
+
+		config RP2040_PWM1B_INVERT
+			bool "PWM1 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM1_PHASE_CORRECT
+		bool "PWM1 phase correct"
+		default n
+endif
+
+if RP2040_PWM2
+	config RP2040_PWM2A_GPIO
+		int "PWM2 channel 1 GPIO pin assign (4, 20 or -1:no assign)"
+		default 4
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 4 or 20, any other value disables the output.
+		
+	config RP2040_PWM2A_INVERT
+		bool "PWM2 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM2B_GPIO
+			int "PWM2 channel 2 GPIO pin assign (5 or -1:no assign)"
+			default 5
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 5 or 21, any other value disables the output.
+
+		config RP2040_PWM2B_INVERT
+			bool "PWM2 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM2_PHASE_CORRECT
+		bool "PWM2 phase correct"
+		default n
+endif
+
+if RP2040_PWM3
+	config RP2040_PWM3A_GPIO
+		int "PWM3 channel 1 GPIO pin assign (6 or -1:no assign)"
+		default 6
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 6 or 22, any other value disables the output.
+		
+	config RP2040_PWM3A_INVERT
+		bool "PWM3 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM3B_GPIO
+			int "PWM3 channel 2 GPIO pin assign (7 or -1:no assign)"
+			default 7
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 7 or 23, any other value disables the output.
+
+		config RP2040_PWM3B_INVERT
+			bool "PWM3 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM3_PHASE_CORRECT
+		bool "PWM3 phase correct"
+		default n
+endif
+
+if RP2040_PWM4
+	config RP2040_PWM4A_GPIO
+		int "PWM4 channel 1 GPIO pin assign (8 or -1:no assign)"
+		default 8
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 8 or 24, any other value disables the output.
+		
+	config RP2040_PWM4A_INVERT
+		bool "PWM4 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM4B_GPIO
+			int "PWM4 channel 2 GPIO pin assign (9 or -1:no assign)"
+			default 9
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 9 or 25, any other value disables the output.
+
+		config RP2040_PWM4B_INVERT
+			bool "PWM4 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM4_PHASE_CORRECT
+		bool "PWM4 phase correct"
+		default n
+endif
+
+if RP2040_PWM5
+	config RP2040_PWM5A_GPIO
+		int "PWM5 channel 1 GPIO pin assign (10, 26 or -1:no assign)"
+		default 10
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 10 or 26, any other value disables the output.
+		
+	config RP2040_PWM5A_INVERT
+		bool "PWM5 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM5B_GPIO
+			int "PWM5 channel 2 GPIO pin assign (27 or -1:no assign)"
+			default 11
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 11 or 27, any other value disables the output.
+
+		config RP2040_PWM5B_INVERT
+			bool "PWM5 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM5_PHASE_CORRECT
+		bool "PWM5 phase correct"
+		default n
+endif
+
+if RP2040_PWM6
+	config RP2040_PWM6A_GPIO
+		int "PWM6 channel 1 GPIO pin assign (12, 28 or -1:no assign)"
+		default 12
+		range -1 29
+		---help---
+			This sets the GPIO pin to use for the A channel it must be
+			either 12 or 28, any other value disables the output.
+		
+	config RP2040_PWM6A_INVERT
+		bool "PWM6 channel 1 invert"
+		default n
+		---help---
+			If invert is enabled, the PWM on the A pin will idle high
+			with the pulse going low.
+
+	if PWM_MULTICHAN && PWM_NCHANNELS > 1
+		config RP2040_PWM6B_GPIO
+			int "PWM6 channel 2 GPIO pin assign (13, 29 or -1:no assign)"
+			default 13
+			range -1 29
+			---help---
+				This sets the GPIO pin to use for the B channel it must be
+				either 13 or 29, any other value disables the output.
+
+		config RP2040_PWM6B_INVERT
+			bool "PWM6 channel 2 invert"
+			default n
+		  ---help---
+			  If invert is enabled, the PWM on the B pin will idle high
+			  with the pulse going low.
+	endif
+
+	config RP2040_PWM6_PHASE_CORRECT
+		bool "PWM6 phase correct"
+		default n
+endif
+
+config RP2040_SPI0_GPIO
+	int "SPI0 GPIO pin assign (0,4,16,20 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_SPI0
+
+config RP2040_SPI1_GPIO
+	int "SPI1 GPIO pin assign (8,12,24,28 or -1:no assign)"
+	default -1
+	range -1 29
+	depends on RP2040_SPI1
+
+config RP2040_LCD_SPI_CH
+	int "RP2040 LCD SPI channel number"
+	default 0
+	range 0 1
+	depends on LCD
+	---help---
+		Select SPI channel number to use LCD display.
+
+config RP2040_ENC28J60_SPI_CH
+	int "ENC28J60 SPI channel number"
+	default 1
+	range 0 1
+	depends on ENC28J60
+	---help---
+		Select SPI channel number to use ENC28J60 ethernet.
+
+config RP2040_ENC28J60_INTR_GPIO
+	int "ENC28J60 interrupt GPIO pin assign"
+	default -1
+	range -1 29
+	depends on ENC28J60
+
+config RP2040_ENC28J60_RESET_GPIO
+	int "ENC28J60 reset GPIO pin assign (optional)"
+	default -1
+	range -1 29
+	depends on ENC28J60
+
+endif

boards/arm/rp2040/adafruit-kb2040/README.txt

@@ -0,0 +1,179 @@
+README
+======
+
+This directory contains the port of NuttX to the Adafruit KB2040.
+See https://www.adafruit.com/product/5302 for information about Adafruit KB2040.
+
+Currently only the following devices are supported.
+
+  Supported:
+  - UART  (console port)
+    - GPIO 0 (UART0 TX) and GPIO 1 (UART0 RX) are used for the console.
+  - I2C
+  - SPI
+  - DMAC
+  - PWM
+  - USB device
+    - MSC, CDC/ACM serial and these composite device are supported.
+    - CDC/ACM serial device can be used for the console.
+  - PIO (RP2040 Programmable I/O)
+  - Flash ROM Boot
+  - SRAM Boot
+    - If Pico SDK is available, nuttx.uf2 file which can be used in
+      BOOTSEL mode will be created.
+  - BMP180 sensor at I2C0 (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
+  - INA219 sensor / module (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
+  - Pico Display Pack (ST7789 LCD)
+    - RGB leds and buttons are not supported yet.
+  - Pico Audio Pack (PCM5100A I2S DAC)
+    - I2S interface is realized by PIO.
+
+  Not supported:
+  - All other devices
+
+Installation
+============
+
+1. Download Raspberry Pi Pico SDK
+
+  $ git clone -b 1.1.2 https://github.com/raspberrypi/pico-sdk.git
+
+2. Set PICO_SDK_PATH environment variable
+
+  $ export PICO_SDK_PATH=<absolute_path_to_pico-sdk_directory>
+
+3. Configure and build NuttX
+
+  $ git clone https://github.com/apache/incubator-nuttx.git nuttx
+  $ git clone https://github.com/apache/incubator-nuttx-apps.git apps
+  $ cd nuttx
+  $ make distclean
+  $ ./tools/configure.sh raspberrypi-pico:nsh
+  $ make V=1
+
+4. Connect Adafruit KB2040 board to USB port while pressing BOOTSEL.
+   The board will be detected as USB Mass Storage Device.
+   Then copy "nuttx.uf2" into the device.
+   (Same manner as the standard Pico SDK applications installation.)
+
+5. To access the console, GPIO 0 and 1 pins must be connected to the
+   device such as USB-serial converter.
+
+   `usbnsh` configuration provides the console access by USB CDC/ACM serial
+   devcice.  The console is available by using a terminal software on the USB
+   host.
+
+Defconfigs
+==========
+
+- nsh
+    Minimum configuration with NuttShell
+
+- nshsram
+    Load NuttX binary to SRAM
+  
+- smp
+    Enable SMP mode. Both Core 0 and Core 1 are used by NuttX.
+
+- ssd1306
+    SSD1306 OLED display (I2C) test configuration
+    Connection:
+       SSD1306       Raspberry Pi Pico
+           GND ----- GND            (Pin 3 or 38 or ...)
+           VCC ----- 3V3 OUT        (Pin 36)
+           SDA ----- GP4 (I2C0 SDA) (Pin 6)
+           SCL ----- GP5 (I2C0 SCL) (Pin 7)
+           
+- lcd1602 
+    LCD 1602 Segment LCD Disaply (I2C)
+    Connection:
+    PCF8574 BackPack Raspberry Pi Pico
+           GND ----- GND            (Pin 3 or 38 or ...)
+           VCC ----- 5V Vbus        (Pin 40)
+           SDA ----- GP4 (I2C0 SDA) (Pin 6)
+           SCL ----- GP5 (I2C0 SCL) (Pin 7)
+- spisd
+    SD card support (SPI connection)
+    Connection:
+      SD card slot   Raspberry Pi Pico
+       DAT2          (NC)
+       DAT3/CS ----- GP17 (SPI0 CSn) (Pin 22)
+       CMD /DI ----- GP19 (SPI0 TX)  (Pin 25)
+       VDD     ----- 3V3 OUT         (Pin 36)
+       CLK/SCK ----- GP18 (SPI0 SCK) (Pin 24)
+       VSS     ----- GND             (Pin 3 or 38 or ...)
+       DAT0/DO ----- GP16 (SPI0 RX)  (Pin 21)
+       DAT1          (NC)
+    * Card hot swapping is not supported.
+
+- st7735
+    st7735 SPI LCD support      
+    Connection:
+      st7735         Raspberry Pi Pico
+           GND ----- GND             (Pin 3 or 38 or ...)
+           VCC ----- 5V Vbus         (Pin 40)
+           SDA ----- GP15 (SPI1 TX)  (Pin 20)
+           SCK ----- GP14 (SPI1 SCK) (Pin 19)
+            CS ----- GP13 (SPI1 CSn) (Pin 17)
+       AO(D/C) ----- GP12 (SPI1 RX)  (Pin 16)
+            BL ----- GP11            (Pin 15)
+         RESET ----- GP10            (Pin 14)  
+
+- enc28j60
+    ENC28J60 SPI ethernet controller support
+      - IP address is configured by DHCP.
+      - DNS address is 8.8.8.8 (CONFIG_NETINIT_DNSIPADDR)
+      - NTP client is enabled.
+    Connection:
+      ENC28J60       Raspberry Pi Pico
+           GND ----- GND             (Pin 3 or 38 or ...)
+           3.3 ----- 3V3 OUT         (Pin 36)
+            SI ----- GP15 (SPI1 TX)  (Pin 20)
+           SCK ----- GP14 (SPI1 SCK) (Pin 19)
+            CS ----- GP13 (SPI1 CSn) (Pin 17)
+            SO ----- GP12 (SPI1 RX)  (Pin 16)
+           INT ----- GP11            (Pin 15)
+         RESET ----- GP10            (Pin 14)
+
+- displaypack
+    Pico Display Pack support
+    See the following page for connection:
+      https://shop.pimoroni.com/products/pico-display-pack
+
+- audiopack
+    Pico Audio Pack support
+    See the following page for connection:
+      https://shop.pimoroni.com/products/pico-audio-pack
+    SD card interface is also enabled.
+
+- usbnsh
+    USB CDC/ACM serial console with NuttShell
+
+- usbmsc
+    USB MSC and CDC/ACM support
+    `msconn` and `sercon` commands enable the MSC and CDC/ACM devices.
+    The MSC support provides the interface to the SD card with SPI,
+    so the SD card slot connection like spisd configuration is required.
+
+- composite
+    USB composite device (MSC + CDC/ACM) support
+    `conn` command enables the composite device.
+
+License exceptions
+==================
+
+The following files are originated from the files in Pico SDK.
+So, the files are licensed under 3-Clause BSD same as Pico SDK.
+
+- arch/arm/src/rp2040/rp2040_clock.c
+- arch/arm/src/rp2040/rp2040_pll.c
+- arch/arm/src/rp2040/rp2040_xosc.c
+  - These are created by referring the Pico SDK clock initialization.
+
+- arch/arm/src/rp2040/rp2040_pio.c
+- arch/arm/src/rp2040/rp2040_pio.h
+- arch/arm/src/rp2040/rp2040_pio_instructions.h
+  - These provide the similar APIs to Pico SDK's hardware_pio APIs.
+
+- arch/arm/src/rp2040/hardware/*.h
+  - These are generated from rp2040.svd originally provided in Pico SDK.

boards/arm/rp2040/adafruit-kb2040/configs/audiopack/defconfig

@@ -0,0 +1,76 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_AUDIO_FORMAT_MP3 is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NSH_DISABLE_MB is not set
+# CONFIG_NSH_DISABLE_MH is not set
+# CONFIG_NSH_DISABLE_MW is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-kb2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_KB2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_AUDIO=y
+CONFIG_AUDIO_I2S=y
+CONFIG_AUDIO_I2SCHAR=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_AUDIO=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NXPLAYER_DEFAULT_MEDIADIR="/mnt/sd0"
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_I2S=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_HPWORK=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NXPLAYER=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=17

boards/arm/rp2040/adafruit-kb2040/configs/composite/defconfig

@@ -0,0 +1,79 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_MMCSD_HAVE_CARDDETECT is not set
+# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_SPI_CALLBACK is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-kb2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_KB2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_COMPOSITE=y
+CONFIG_COMPOSITE_IAD=y
+CONFIG_COMPOSITE_MSFT_OS_DESCRIPTORS=y
+CONFIG_COMPOSITE_PRODUCTID=0x2022
+CONFIG_COMPOSITE_SERIALSTR="12345"
+CONFIG_COMPOSITE_VENDORID=0x03eb
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_USBSERIAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MMCSD=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RP2040_SPISD=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_COMPOSITE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_USBDEV_COMPOSITE=y
+CONFIG_USBMSC=y
+CONFIG_USBMSC_COMPOSITE=y
+CONFIG_USBMSC_NOT_STALL_BULKEP=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=17

boards/arm/rp2040/adafruit-kb2040/configs/displaypack/defconfig

@@ -0,0 +1,103 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_DEV_CONSOLE is not set
+# CONFIG_EXAMPLES_NXLINES_DEFAULT_COLORS is not set
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NXFONTS_DISABLE_16BPP is not set
+# CONFIG_NX_DISABLE_16BPP is not set
+# CONFIG_NX_PACKEDMSFIRST is not set
+# CONFIG_NX_WRITEONLY is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-kb2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_KB2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_NX=y
+CONFIG_EXAMPLES_NXDEMO=y
+CONFIG_EXAMPLES_NXDEMO_BPP=16
+CONFIG_EXAMPLES_NXHELLO=y
+CONFIG_EXAMPLES_NXHELLO_BPP=16
+CONFIG_EXAMPLES_NXLINES=y
+CONFIG_EXAMPLES_NXLINES_BGCOLOR=0x0320
+CONFIG_EXAMPLES_NXLINES_BORDERCOLOR=0xffe0
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=4
+CONFIG_EXAMPLES_NXLINES_BPP=16
+CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR=0xf7bb
+CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xffe0
+CONFIG_EXAMPLES_NX_BPP=16
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_I2C=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD=y
+CONFIG_LCD_DEV=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_MAXCONTRAST=255
+CONFIG_LCD_NOGETRUN=y
+CONFIG_LCD_ST7789=y
+CONFIG_LCD_ST7789_FREQUENCY=64000000
+CONFIG_LCD_ST7789_XOFFSET=53
+CONFIG_LCD_ST7789_XRES=135
+CONFIG_LCD_ST7789_YOFFSET=40
+CONFIG_LCD_ST7789_YRES=240
+CONFIG_MQ_MAXMSGSIZE=64
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_USBCONSOLE=y
+CONFIG_NX=y
+CONFIG_NXFONTS_PACKEDMSFIRST=y
+CONFIG_NXFONT_SANS40X49B=y
+CONFIG_NX_BLOCKING=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSTEM_I2CTOOL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_USBDEV=y
+CONFIG_USBDEV_BUSPOWERED=y
+CONFIG_VIDEO_FB=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=17

boards/arm/rp2040/adafruit-kb2040/configs/enc28j60/defconfig

@@ -0,0 +1,88 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-kb2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_KB2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_ZERO=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_ENC28J60=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_NET=y
+CONFIG_NETDB_DNSCLIENT=y
+CONFIG_NETDB_DNSSERVER_NOADDR=y
+CONFIG_NETDEVICES=y
+CONFIG_NETDEV_PHY_IOCTL=y
+CONFIG_NETINIT_DHCPC=y
+CONFIG_NETINIT_DNS=y
+CONFIG_NETINIT_DNSIPADDR=0x08080808
+CONFIG_NETINIT_NOMAC=y
+CONFIG_NET_BROADCAST=y
+CONFIG_NET_ICMP=y
+CONFIG_NET_ICMP_SOCKET=y
+CONFIG_NET_LOOPBACK=y
+CONFIG_NET_ROUTE=y
+CONFIG_NET_TCP=y
+CONFIG_NET_UDP=y
+CONFIG_NET_UDP_CHECKSUMS=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_ENC28J60_INTR_GPIO=11
+CONFIG_RP2040_ENC28J60_RESET_GPIO=10
+CONFIG_RP2040_SPI0=y
+CONFIG_RP2040_SPI0_GPIO=16
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=12
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_HPWORK=y
+CONFIG_SCHED_LPWORK=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_DHCPC_RENEW=y
+CONFIG_SYSTEM_NETDB=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NTPC=y
+CONFIG_SYSTEM_PING=y
+CONFIG_SYSTEM_SPITOOL=y
+CONFIG_SYSTEM_SYSTEM=y
+CONFIG_SYSTEM_TELNET_CLIENT=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WQUEUE_NOTIFIER=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=17

boards/arm/rp2040/adafruit-kb2040/configs/lcd1602/defconfig

@@ -0,0 +1,61 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="adafruit-kb2040"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ADAFRUIT_KB2040=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_SLCD=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_LCD_BACKPACK=y
+CONFIG_LCD_LCD1602=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_I2C0=y
+CONFIG_RP2040_I2C0_GPIO=4
+CONFIG_RP2040_I2C=y
+CONFIG_RP2040_I2C_DRIVER=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SLCD=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_WS2812_NON_SPI_DRIVER=y
+CONFIG_WS2812=y
+CONFIG_RP2040_BOARD_HAS_WS2812=y
+CONFIG_RP2040_WS2812_GPIO_PIN=17