From bd69ae46bc63821d0eb0955611e4804ed7d14f16 Mon Sep 17 00:00:00 2001 From: Iacopo Moles Date: Sun, 29 Sep 2024 17:52:59 +0200 Subject: [PATCH] boards: waveshare: rp2040_zero: Initial support This PR adds supports for Waveshare RP2040 Zero Signed-off-by: Iacopo Moles --- boards/waveshare/rp2040_zero/Kconfig | 5 + .../waveshare/rp2040_zero/Kconfig.defconfig | 13 ++ .../waveshare/rp2040_zero/Kconfig.rp2040_zero | 5 + boards/waveshare/rp2040_zero/board.cmake | 5 + boards/waveshare/rp2040_zero/board.yml | 6 + .../rp2040_zero/doc/img/rp2040_zero.png | Bin 0 -> 14662 bytes boards/waveshare/rp2040_zero/doc/index.rst | 132 ++++++++++++++++ .../rp2040_zero/rp2040_zero-pinctrl.dtsi | 69 ++++++++ boards/waveshare/rp2040_zero/rp2040_zero.dts | 147 ++++++++++++++++++ boards/waveshare/rp2040_zero/rp2040_zero.yaml | 24 +++ .../rp2040_zero/rp2040_zero_defconfig | 13 ++ .../adc/adc_api/boards/rp2040_zero.overlay | 30 ++++ 12 files changed, 449 insertions(+) create mode 100644 boards/waveshare/rp2040_zero/Kconfig create mode 100644 boards/waveshare/rp2040_zero/Kconfig.defconfig create mode 100644 boards/waveshare/rp2040_zero/Kconfig.rp2040_zero create mode 100644 boards/waveshare/rp2040_zero/board.cmake create mode 100644 boards/waveshare/rp2040_zero/board.yml create mode 100644 boards/waveshare/rp2040_zero/doc/img/rp2040_zero.png create mode 100644 boards/waveshare/rp2040_zero/doc/index.rst create mode 100644 boards/waveshare/rp2040_zero/rp2040_zero-pinctrl.dtsi create mode 100644 boards/waveshare/rp2040_zero/rp2040_zero.dts create mode 100644 boards/waveshare/rp2040_zero/rp2040_zero.yaml create mode 100644 boards/waveshare/rp2040_zero/rp2040_zero_defconfig create mode 100644 tests/drivers/adc/adc_api/boards/rp2040_zero.overlay diff --git a/boards/waveshare/rp2040_zero/Kconfig b/boards/waveshare/rp2040_zero/Kconfig new file mode 100644 index 00000000000..1ccd1ffd571 --- /dev/null +++ b/boards/waveshare/rp2040_zero/Kconfig @@ -0,0 +1,5 @@ +# Copyright (c) 2024 Iacopo Moles +# SPDX-License-Identifier: Apache-2.0 + +config BOARD_RP2040_ZERO + select RP2_FLASH_W25Q080 diff --git a/boards/waveshare/rp2040_zero/Kconfig.defconfig b/boards/waveshare/rp2040_zero/Kconfig.defconfig new file mode 100644 index 00000000000..b03a6c6d9d5 --- /dev/null +++ b/boards/waveshare/rp2040_zero/Kconfig.defconfig @@ -0,0 +1,13 @@ +# Copyright (c) 2024 Iacopo Moles +# SPDX-License-Identifier: Apache-2.0 + +if BOARD_RP2040_ZERO + +if I2C_DW + +config I2C_DW_CLOCK_SPEED + default 125 + +endif # I2C_DW + +endif # BOARD_RP2040_ZERO diff --git a/boards/waveshare/rp2040_zero/Kconfig.rp2040_zero b/boards/waveshare/rp2040_zero/Kconfig.rp2040_zero new file mode 100644 index 00000000000..47a5fbbb7eb --- /dev/null +++ b/boards/waveshare/rp2040_zero/Kconfig.rp2040_zero @@ -0,0 +1,5 @@ +# Copyright (c) 2024 Iacopo Moles +# SPDX-License-Identifier: Apache-2.0 + +config BOARD_RP2040_ZERO + select SOC_RP2040 diff --git a/boards/waveshare/rp2040_zero/board.cmake b/boards/waveshare/rp2040_zero/board.cmake new file mode 100644 index 00000000000..4103e36e635 --- /dev/null +++ b/boards/waveshare/rp2040_zero/board.cmake @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: Apache-2.0 + +board_runner_args(uf2 "--board-id=RPI-RP2") + +include(${ZEPHYR_BASE}/boards/common/uf2.board.cmake) diff --git a/boards/waveshare/rp2040_zero/board.yml b/boards/waveshare/rp2040_zero/board.yml new file mode 100644 index 00000000000..4af02703a2e --- /dev/null +++ b/boards/waveshare/rp2040_zero/board.yml @@ -0,0 +1,6 @@ +board: + name: rp2040_zero + full_name: RP2040-Zero + vendor: waveshare + socs: + - name: rp2040 diff --git a/boards/waveshare/rp2040_zero/doc/img/rp2040_zero.png b/boards/waveshare/rp2040_zero/doc/img/rp2040_zero.png new file mode 100644 index 0000000000000000000000000000000000000000..d192b1a7d209604738c06b5f6239fc93dda5d14a GIT binary patch literal 14662 zcmV-MIl0D(P)Q^Y!TM@9F*e==u2Tz`?lr@z$fJqt3~+?&;Oo*w*&( 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Kingdom. +- Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz. +- 264KB of SRAM, and 2MB of on-board Flash memory. +- USB-C connector, keeps it up to date, easier to use. +- The castellated module allows soldering direct to carrier boards. +- USB 1.1 with device and host support. +- Low-power sleep and dormant modes. +- Drag-and-drop programming using mass storage over USB. +- 29 × multi-function GPIO pins (20× via edge pinout, others via solder points). +- 2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels. +- Accurate clock and timer on-chip. +- Temperature sensor. +- Accelerated floating-point libraries on-chip. +- 8 × Programmable I/O (PIO) state machines for custom peripheral support. + +Supported Features +================== + +The ``rp2040_zero`` board target supports the following hardware features: + +.. list-table:: + :header-rows: 1 + + * - Peripheral + - Kconfig option + - Devicetree compatible + * - NVIC + - N/A + - :dtcompatible:`arm,v6m-nvic` + * - UART + - :kconfig:option:`CONFIG_SERIAL` + - :dtcompatible:`raspberrypi,pico-uart` + * - GPIO + - :kconfig:option:`CONFIG_GPIO` + - :dtcompatible:`raspberrypi,pico-gpio` + * - ADC + - :kconfig:option:`CONFIG_ADC` + - :dtcompatible:`raspberrypi,pico-adc` + * - I2C + - :kconfig:option:`CONFIG_I2C` + - :dtcompatible:`snps,designware-i2c` + * - SPI + - :kconfig:option:`CONFIG_SPI` + - :dtcompatible:`raspberrypi,pico-spi` + * - USB Device + - :kconfig:option:`CONFIG_USB_DEVICE_STACK` + - :dtcompatible:`raspberrypi,pico-usbd` + * - HWINFO + - :kconfig:option:`CONFIG_HWINFO` + - N/A + * - Watchdog Timer (WDT) + - :kconfig:option:`CONFIG_WATCHDOG` + - :dtcompatible:`raspberrypi,pico-watchdog` + * - PWM + - :kconfig:option:`CONFIG_PWM` + - :dtcompatible:`raspberrypi,pico-pwm` + * - Flash + - :kconfig:option:`CONFIG_FLASH` + - :dtcompatible:`raspberrypi,pico-flash` + * - Clock controller + - :kconfig:option:`CONFIG_CLOCK_CONTROL` + - :dtcompatible:`raspberrypi,pico-clock-controller` + * - UART (PIO) + - :kconfig:option:`CONFIG_SERIAL` + - :dtcompatible:`raspberrypi,pico-uart-pio` + * - SPI (PIO) + - :kconfig:option:`CONFIG_SPI` + - :dtcompatible:`raspberrypi,pico-spi-pio` + +Pin Mapping +=========== + +The peripherals of the RP2040 SoC can be routed to various pins on the board. The configuration of these routes can be modified through DTS. Please refer to the datasheet to see the possible routings for each peripheral. + +Default Zephyr Peripheral Mapping: +---------------------------------- + +.. rst-class:: rst-columns + +- UART0_TX : P0 +- UART0_RX : P1 +- I2C0_SDA : P4 +- I2C0_SCL : P5 +- I2C1_SDA : P6 +- I2C1_SCL : P7 +- ADC_CH0 : P26 +- ADC_CH1 : P27 +- ADC_CH2 : P28 +- ADC_CH3 : P29 + +Programming and Debugging +************************* + +Flashing +======== + +Using UF2 +--------- + +Here is an example of building the sample for driving the built-in RGB led. + +.. zephyr-app-commands:: + :zephyr-app: samples/drivers/led/led_strip + :board: rp2040_zero + :goals: build + :compact: + +You must flash the RP2040-Zero with an UF2 file. One option is to use West (Zephyr’s meta-tool). To enter the UF2 flashing mode just keep the ``BOOT`` button pressed while you connect the USB port, it will appear on the host as a mass storage device. In alternative with the board already connected via USB you can keep the ``RESET`` button pressed, press and release ``BOOT``, release ``RESET``. At this point you can flash the image file by running: + +.. code-block:: bash + + west flash + +In alternative you can locate the generated file at ``build/zephyr/zephyr.uf2 file`` and simply drag-and-drop to the device after entreing the UF2 flashing mode. + +References +********** + +- `Official Documentation`_ +- `WS2812 datasheet`_ + +.. _Official Documentation: https://www.waveshare.com/wiki/RP2040-Zero +.. _WS2812 datasheet: https://cdn-shop.adafruit.com/datasheets/WS2812.pdf diff --git a/boards/waveshare/rp2040_zero/rp2040_zero-pinctrl.dtsi b/boards/waveshare/rp2040_zero/rp2040_zero-pinctrl.dtsi new file mode 100644 index 00000000000..80b18d45014 --- /dev/null +++ b/boards/waveshare/rp2040_zero/rp2040_zero-pinctrl.dtsi @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2024 Iacopo Moles + * + * SPDX-License-Identifier: Apache-2.0 + */ + +#include +#include + +&pinctrl { + uart0_default: uart0_default { + status = "okay"; + group1 { + pinmux = ; + }; + group2 { + pinmux = ; + input-enable; + }; + }; + + i2c0_default: i2c0_default { + group1 { + pinmux = ; + input-enable; + }; + group2 { + pinmux = ; + input-enable; + }; + }; + + i2c1_default: i2c1_default { + group1 { + pinmux = ; + input-enable; + }; + group2 { + pinmux = ; + input-enable; + }; + }; + + spi0_default: spi0_default { + group1 { + pinmux = ; + }; + group2 { + pinmux = ; + input-enable; + }; + group3 { + pinmux = ; + }; + }; + + adc_default: adc_default { + group1 { + pinmux = , , , ; + input-enable; + }; + }; + + ws2812_pio0_default: ws2812_pio0_default { + ws2812 { + pinmux = ; + }; + }; +}; diff --git a/boards/waveshare/rp2040_zero/rp2040_zero.dts b/boards/waveshare/rp2040_zero/rp2040_zero.dts new file mode 100644 index 00000000000..9d582a97054 --- /dev/null +++ b/boards/waveshare/rp2040_zero/rp2040_zero.dts @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2024 Iacopo Moles + * + * SPDX-License-Identifier: Apache-2.0 + */ + +/dts-v1/; + +#include +#include "rp2040_zero-pinctrl.dtsi" +#include +#include +/ { + chosen { + zephyr,sram = &sram0; + zephyr,flash = &flash0; + zephyr,flash-controller = &ssi; + zephyr,console = &uart0; + zephyr,shell-uart = &uart0; + zephyr,code-partition = &code_partition; + }; + + aliases { + rtc = &rtc; + watchdog0 = &wdt0; + led-strip = &ws2812; + }; +}; + +&flash0 { + reg = <0x10000000 DT_SIZE_M(16)>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + /* Reserved memory for the second stage bootloader */ + second_stage_bootloader: partition@0 { + label = "second_stage_bootloader"; + reg = <0x00000000 0x100>; + read-only; + }; + + /* + * Usable flash. Starts at 0x100, after the bootloader. The partition + * size is 16MB minus the 0x100 bytes taken by the bootloader. + */ + code_partition: partition@100 { + label = "code-partition"; + reg = <0x100 (DT_SIZE_M(16) - 0x100)>; + read-only; + }; + }; +}; + +&uart0 { + status = "okay"; + current-speed = <115200>; + pinctrl-0 = <&uart0_default>; + pinctrl-names = "default"; +}; + +&i2c0 { + status = "okay"; + pinctrl-0 = <&i2c0_default>; + pinctrl-names = "default"; + clock-frequency = ; +}; + +&i2c1 { + status = "okay"; + pinctrl-0 = <&i2c1_default>; + pinctrl-names = "default"; + clock-frequency = ; +}; + +&spi0 { + clock-frequency = ; + status = "okay"; + pinctrl-0 = <&spi0_default>; + pinctrl-names = "default"; +}; + +&timer { + status = "okay"; +}; + +&wdt0 { + status = "okay"; +}; + +&gpio0 { + status = "okay"; +}; + +&rtc { + clocks = <&clocks RPI_PICO_CLKID_CLK_RTC>; + status = "okay"; +}; + +&adc { + status = "okay"; + pinctrl-0 = <&adc_default>; + pinctrl-names = "default"; +}; + +&pio0 { + status = "okay"; + + pio-ws2812 { + compatible = "worldsemi,ws2812-rpi_pico-pio"; + status = "okay"; + pinctrl-0 = <&ws2812_pio0_default>; + pinctrl-names = "default"; + bit-waveform = <3>, <3>, <4>; + + ws2812: ws2812 { + status = "okay"; + gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; + chain-length = <1>; + color-mapping = ; + reset-delay = <280>; + frequency = <800000>; + }; + }; +}; + +&pio1 { + status = "okay"; +}; + +zephyr_udc0: &usbd { + status = "okay"; +}; + +&vreg { + regulator-always-on; + regulator-allowed-modes = ; +}; + +pico_spi: &spi0 {}; +pico_i2c0: &i2c0 {}; +pico_i2c1: &i2c1 {}; +pico_serial: &uart0 {}; diff --git a/boards/waveshare/rp2040_zero/rp2040_zero.yaml b/boards/waveshare/rp2040_zero/rp2040_zero.yaml new file mode 100644 index 00000000000..b93e332f7d8 --- /dev/null +++ b/boards/waveshare/rp2040_zero/rp2040_zero.yaml @@ -0,0 +1,24 @@ +identifier: rp2040_zero +name: Waveshare RP2040-Zero +type: mcu +arch: arm +flash: 16384 +ram: 264 +toolchain: + - zephyr + - gnuarmemb + - xtools +supported: + - uart + - gpio + - adc + - i2c + - spi + - hwinfo + - watchdog + - pwm + - flash + - dma + - counter + - clock + - usbd diff --git a/boards/waveshare/rp2040_zero/rp2040_zero_defconfig b/boards/waveshare/rp2040_zero/rp2040_zero_defconfig new file mode 100644 index 00000000000..3be05ed9862 --- /dev/null +++ b/boards/waveshare/rp2040_zero/rp2040_zero_defconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: Apache-2.0 + +CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000 +CONFIG_SERIAL=y +CONFIG_CONSOLE=y +CONFIG_UART_CONSOLE=y +CONFIG_GPIO=y +CONFIG_USE_DT_CODE_PARTITION=y +CONFIG_BUILD_OUTPUT_UF2=y +CONFIG_BUILD_OUTPUT_HEX=y +CONFIG_UART_INTERRUPT_DRIVEN=y +CONFIG_RESET=y +CONFIG_CLOCK_CONTROL=y diff --git a/tests/drivers/adc/adc_api/boards/rp2040_zero.overlay b/tests/drivers/adc/adc_api/boards/rp2040_zero.overlay new file mode 100644 index 00000000000..4c8059422a4 --- /dev/null +++ b/tests/drivers/adc/adc_api/boards/rp2040_zero.overlay @@ -0,0 +1,30 @@ +/* + * SPDX-License-Identifier: Apache-2.0 + */ + +/ { + zephyr,user { + io-channels = <&adc 0>, <&adc 1>; + }; +}; + +&adc { + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0>; + zephyr,gain = "ADC_GAIN_1"; + zephyr,reference = "ADC_REF_INTERNAL"; + zephyr,acquisition-time = ; + zephyr,resolution = <12>; + }; + + channel@1 { + reg = <1>; + zephyr,gain = "ADC_GAIN_1"; + zephyr,reference = "ADC_REF_INTERNAL"; + zephyr,acquisition-time = ; + zephyr,resolution = <12>; + }; +};