boards: xtensa: add support for waveshare esp32-s3-touch-lcd-1.28

Add support for the Waveshare ESP32-S3-Touch-LCD-1.28 board, including
support the LCD and touchscreen controllers. Tested with samples
already available.

Signed-off-by: Joel Guittet <joelguittet@gmail.com>

boards/waveshare/esp32s3_touch_lcd_1_28/Kconfig

@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ESP32S3_TOUCH_LCD_1_28
+	select SOC_ESP32S3_PROCPU if BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_PROCPU
+	select SOC_ESP32S3_APPCPU if BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_APPCPU

boards/waveshare/esp32s3_touch_lcd_1_28/Kconfig.defconfig

@@ -0,0 +1,36 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_PROCPU
+
+config HEAP_MEM_POOL_ADD_SIZE_BOARD
+	int
+	default 65535 if WIFI && BT
+	default 51200 if WIFI
+	default 40960 if BT
+	default 4096
+
+choice BT_HCI_BUS_TYPE
+	default BT_ESP32 if BT
+endchoice
+
+endif # BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_PROCPU
+
+if BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_APPCPU
+
+config HEAP_MEM_POOL_ADD_SIZE_BOARD
+	default 256
+
+endif # BOARD_ESP32S3_TOUCH_LCD_1_28_ESP32S3_APPCPU
+
+config ENTROPY_GENERATOR
+	default y
+
+config KERNEL_MEM_POOL
+	default y
+
+config PWM
+	default y if DISPLAY
+
+config LV_COLOR_16_SWAP
+	default y if LVGL

boards/waveshare/esp32s3_touch_lcd_1_28/Kconfig.esp32s3_touch_lcd_1_28

@@ -0,0 +1,5 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ESP32S3_TOUCH_LCD_1_28
+	select SOC_ESP32S3_R2

boards/waveshare/esp32s3_touch_lcd_1_28/board.cmake

@@ -0,0 +1,10 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+if(NOT "${OPENOCD}" MATCHES "^${ESPRESSIF_TOOLCHAIN_PATH}/.*")
+	set(OPENOCD OPENOCD-NOTFOUND)
+endif()
+find_program(OPENOCD openocd PATHS ${ESPRESSIF_TOOLCHAIN_PATH}/openocd-esp32/bin NO_DEFAULT_PATH)
+
+include(${ZEPHYR_BASE}/boards/common/esp32.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

boards/waveshare/esp32s3_touch_lcd_1_28/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: esp32s3_touch_lcd_1_28
+  vendor: waveshare
+  socs:
+  - name: esp32s3

boards/waveshare/esp32s3_touch_lcd_1_28/doc/index.rst

@@ -0,0 +1,123 @@
+.. _esp32s3_touch_lcd_1_28:
+
+Waveshare ESP32-S3-Touch-LCD-1.28
+#################################
+
+Overview
+********
+
+The ESP32-S3-Touch-LCD-1.28 is an ESP32S3 development board from Waveshare with a round LCD,
+suitable to build watches or similar projects. This board integrates complete Wi-Fi and Bluetooth
+Low Energy functions, an accelerometer and gyroscope, a battery charger and GPIO extension port.
+
+Hardware
+********
+
+ESP32-S3 is a low-power MCU-based system on a chip (SoC) with integrated 2.4 GHz Wi-Fi
+and Bluetooth® Low Energy (Bluetooth LE). It consists of high-performance dual-core microprocessor
+(Xtensa® 32-bit LX7), a low power coprocessor, a Wi-Fi baseband, a Bluetooth LE baseband,
+RF module, and numerous peripherals.
+
+ESP32-S3-Touch-LCD-1.28 includes the following features:
+
+- Dual core 32-bit Xtensa Microprocessor (Tensilica LX7), running up to 240MHz
+- Additional vector instructions support for AI acceleration
+- 2MB of SRAM
+- 16MB of FLASH
+- Wi-Fi 802.11b/g/n
+- Bluetooth LE 5.0 with long-range support and up to 2Mbps data rate
+- Round 1.28" LCD with touchscreen controller
+- Accelerometer/gyroscope
+- Battery charger
+
+Digital interfaces:
+
+- 6 programmable GPIOs
+- 2 open-drain outputs
+
+Low Power:
+
+- Power Management Unit with five power modes
+- Ultra-Low-Power (ULP) coprocessors: ULP-RISC-V and ULP-FSM
+
+Security:
+
+- Secure boot
+- Flash encryption
+- 4-Kbit OTP, up to 1792 bits for users
+- Cryptographic hardware acceleration: (AES-128/256, Hash, RSA, RNG, HMAC, Digital signature)
+
+Asymmetric Multiprocessing (AMP)
+********************************
+
+ESP32-S3 allows 2 different applications to be executed in ESP32-S3 SoC. Due to its dual-core
+architecture, each core can be enabled to execute customized tasks in stand-alone mode
+and/or exchanging data over OpenAMP framework. See :ref:`ipc_samples` folder as code reference.
+
+For more information, check the datasheet at `ESP32-S3 Datasheet`_.
+
+Supported Features
+==================
+
+Current Zephyr's ESP32-S3-Touch-LCD-1.28 board supports the following features:
+
++------------+------------+-------------------------------------+
+| Interface  | Controller | Driver/Component                    |
++============+============+=====================================+
+| UART       | on-chip    | serial port                         |
++------------+------------+-------------------------------------+
+| GPIO       | on-chip    | gpio                                |
++------------+------------+-------------------------------------+
+| PINMUX     | on-chip    | pinmux                              |
++------------+------------+-------------------------------------+
+| SPI Master | on-chip    | spi                                 |
++------------+------------+-------------------------------------+
+| TWAI/CAN   | on-chip    | can                                 |
++------------+------------+-------------------------------------+
+| ADC        | on-chip    | adc                                 |
++------------+------------+-------------------------------------+
+| Timers     | on-chip    | counter                             |
++------------+------------+-------------------------------------+
+| Watchdog   | on-chip    | watchdog                            |
++------------+------------+-------------------------------------+
+| TRNG       | on-chip    | entropy                             |
++------------+------------+-------------------------------------+
+| LEDC       | on-chip    | pwm                                 |
++------------+------------+-------------------------------------+
+| MCPWM      | on-chip    | pwm                                 |
++------------+------------+-------------------------------------+
+| PCNT       | on-chip    | qdec                                |
++------------+------------+-------------------------------------+
+| GDMA       | on-chip    | dma                                 |
++------------+------------+-------------------------------------+
+
+Prerequisites
+-------------
+
+Espressif HAL requires WiFi and Bluetooth binary blobs in order work. Run the command
+below to retrieve those files.
+
+.. code-block:: console
+
+   west blobs fetch hal_espressif
+
+.. note::
+
+   It is recommended running the command above after :file:`west update`.
+
+Building & Flashing
+*******************
+
+ESP-IDF bootloader
+==================
+
+The board is using the ESP-IDF bootloader as the default 2nd stage bootloader.
+It is build as a subproject at each application build. No further attention
+is expected from the user.
+
+References
+**********
+
+.. _ESP32-S3-Touch-LCD-1.28 Waveshare Wiki: https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-1.28
+.. _ESP32-S3 Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_mini-1u_datasheet_en.pdf
+.. _ESP32 Technical Reference Manual: https://www.espressif.com/sites/default/files/documentation/esp32-s3_technical_reference_manual_en.pdf

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28-pinctrl.dtsi

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2024 Joel Guittet
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <dt-bindings/pinctrl/esp32s3-pinctrl.h>
+#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
+#include <zephyr/dt-bindings/pinctrl/esp32s3-gpio-sigmap.h>
+
+&pinctrl {
+
+	i2c1_default: i2c1_default {
+		group1 {
+			pinmux = <I2C1_SDA_GPIO6>, <I2C1_SCL_GPIO7>;
+			bias-pull-up;
+			drive-open-drain;
+			output-high;
+		};
+	};
+
+	ledc0_default: ledc0_default {
+		group1 {
+			pinmux = <LEDC_CH0_GPIO2>, <LEDC_CH1_GPIO5>, <LEDC_CH2_GPIO4>;
+			output-enable;
+		};
+	};
+
+	spim2_default: spim2_default {
+		group1 {
+			pinmux = <SPIM2_MISO_GPIO12>, <SPIM2_SCLK_GPIO10>, <SPIM2_CSEL_GPIO9>;
+		};
+		group2 {
+			pinmux = <SPIM2_MOSI_GPIO11>;
+			output-low;
+		};
+	};
+
+	uart0_default: uart0_default {
+		group1 {
+			pinmux = <UART0_TX_GPIO43>;
+			output-high;
+		};
+		group2 {
+			pinmux = <UART0_RX_GPIO44>;
+			bias-pull-up;
+		};
+	};
+};

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_appcpu.dts

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2024 Joel Guittet
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <espressif/esp32s3/esp32s3_appcpu.dtsi>
+
+/ {
+	model = "ESP32-S3-Touch-LCD-1.28 APPCPU";
+	compatible = "waveshare,esp32-s3-touch-lcd-1.28";
+
+	chosen {
+		zephyr,sram = &sram0;
+	};
+};
+
+&cpu0 {
+	clock-frequency = <ESP32_CLK_CPU_240M>;
+};
+
+&cpu1 {
+	clock-frequency = <ESP32_CLK_CPU_240M>;
+};
+
+&flash0 {
+	status = "okay";
+	reg = <0x0 DT_SIZE_M(16)>;
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x0000F000>;
+			read-only;
+		};
+
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x00010000 0x00100000>;
+		};
+
+		slot1_partition: partition@110000 {
+			label = "image-1";
+			reg = <0x00110000 0x00100000>;
+		};
+
+		scratch_partition: partition@210000 {
+			label = "image-scratch";
+			reg = <0x00210000 0x00040000>;
+		};
+
+		storage_partition: partition@250000 {
+			label = "storage";
+			reg = <0x00250000 0x00006000>;
+		};
+	};
+};
+
+&trng0 {
+	status = "okay";
+};

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_appcpu.yaml

@@ -0,0 +1,22 @@
+identifier: esp32s3_touch_lcd_1_28/esp32s3/appcpu
+name: ESP32-S3-Touch-LCD-1.28 APPCPU
+type: mcu
+arch: xtensa
+toolchain:
+  - zephyr
+supported:
+  - gpio
+  - i2c
+  - spi
+  - watchdog
+  - regulator
+  - uart
+  - pwm
+  - pinmux
+  - nvs
+  - display
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+vendor: waveshare

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_appcpu_defconfig

@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MAIN_STACK_SIZE=2048
+CONFIG_CLOCK_CONTROL=y
+CONFIG_MINIMAL_LIBC=y

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_procpu.dts

@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2024 Joel Guittet
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <espressif/esp32s3/esp32s3_r2.dtsi>
+#include "esp32s3_touch_lcd_1_28-pinctrl.dtsi"
+#include <zephyr/dt-bindings/display/panel.h>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+#include <zephyr/dt-bindings/pwm/pwm.h>
+
+/ {
+	model = "ESP32-S3-Touch-LCD-1.28 PROCPU";
+	compatible = "waveshare,esp32-s3-touch-lcd-1.28";
+
+	aliases {
+		i2c-1 = &i2c1;
+		pwm-0 = &ledc0;
+		pwm-lcd0 = &pwm_lcd0;
+		sw0 = &button0;
+		uart-0 = &uart0;
+		watchdog0 = &wdt0;
+	};
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,display = &gc9a01;
+	};
+
+	/* Buttons */
+	buttons {
+		compatible = "gpio-keys";
+		button0: button_0 {
+			gpios = <&gpio0 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "BOOT Button";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+	/* Touch Controller */
+	lvgl_pointer {
+		compatible = "zephyr,lvgl-pointer-input";
+		input = <&cst816s>;
+	};
+
+	/* PWM */
+	pwmleds {
+		compatible = "pwm-leds";
+		pwm_lcd0: pwm_lcd0 {
+			pwms = <&ledc0 0 PWM_HZ(250) PWM_POLARITY_NORMAL>;
+		};
+	};
+};
+
+&cpu0 {
+	clock-frequency = <ESP32_CLK_CPU_240M>;
+};
+
+&cpu1 {
+	clock-frequency = <ESP32_CLK_CPU_240M>;
+};
+
+&flash0 {
+	status = "okay";
+	reg = <0x0 DT_SIZE_M(16)>;
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0x0000F000>;
+			read-only;
+		};
+
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x00010000 0x00100000>;
+		};
+
+		slot1_partition: partition@110000 {
+			label = "image-1";
+			reg = <0x00110000 0x00100000>;
+		};
+
+		scratch_partition: partition@210000 {
+			label = "image-scratch";
+			reg = <0x00210000 0x00040000>;
+		};
+
+		storage_partition: partition@250000 {
+			label = "storage";
+			reg = <0x00250000 0x00006000>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&i2c1 {
+	status ="okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-names = "default";
+
+	/* Hynitron CST816S Capacitive Touch Controller */
+	cst816s: cst816s@15 {
+		status = "okay";
+		compatible = "hynitron,cst816s";
+		reg = <0x15>;
+		irq-gpios = <&gpio0 5 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+		rst-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&ledc0 {
+	status = "okay";
+	pinctrl-0 = <&ledc0_default>;
+	pinctrl-names = "default";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	channel0@0 {
+		reg = <0x0>;
+		timer = <0>;
+	};
+	channel1@1 {
+		reg = <0x1>;
+		timer = <1>;
+	};
+	channel2@2 {
+		reg = <0x2>;
+		timer = <2>;
+	};
+};
+
+&spi2 {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-0 = <&spim2_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+
+	gc9a01: gc9a01@0 {
+		status = "okay";
+		compatible = "galaxycore,gc9x01x";
+		reg = <0>;
+		spi-max-frequency = <100000000>;
+		cmd-data-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+		pixel-format = <PANEL_PIXEL_FORMAT_RGB_888>;
+		display-inversion;
+		width = <240>;
+		height = <240>;
+	};
+};
+
+&trng0 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-names = "default";
+};
+
+&wdt0 {
+	status = "okay";
+};

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_procpu.yaml

@@ -0,0 +1,22 @@
+identifier: esp32s3_touch_lcd_1_28/esp32s3/procpu
+name: ESP32-S3-Touch-LCD-1.28 PROCPU
+type: mcu
+arch: xtensa
+toolchain:
+  - zephyr
+supported:
+  - gpio
+  - i2c
+  - spi
+  - watchdog
+  - regulator
+  - uart
+  - pwm
+  - pinmux
+  - nvs
+  - display
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+vendor: waveshare

boards/waveshare/esp32s3_touch_lcd_1_28/esp32s3_touch_lcd_1_28_esp32s3_procpu_defconfig

@@ -0,0 +1,12 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MAIN_STACK_SIZE=2048
+CONFIG_GPIO=y
+CONFIG_REGULATOR=y
+CONFIG_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_UART_CONSOLE=y
+CONFIG_CLOCK_CONTROL=y
+CONFIG_INPUT=y
+CONFIG_INPUT_CST816S_INTERRUPT=n

boards/waveshare/esp32s3_touch_lcd_1_28/support/openocd.cfg

@@ -0,0 +1,10 @@
+# Copyright (c) 2024 Joel Guittet
+# SPDX-License-Identifier: Apache-2.0
+
+set ESP_RTOS none
+set ESP32_ONLYCPU 1
+
+# Source the JTAG interface configuration file
+source [find interface/esp_usb_jtag.cfg]
+# Source the ESP32-S3 configuration file
+source [find target/esp32s3.cfg]