boards: "Lilygo TTGO T7 V1.5" initial support

Add support for board "Lilygo TTGO T7 V1.5"

Signed-off-by: Tobias Kässer <t.kaesser@gmail.com>

boards/lilygo/ttgo_t7v1_5/Kconfig

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+# Copyright 2024 Tobias Kässer <t.kaesser@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+config HEAP_MEM_POOL_ADD_SIZE_BOARD
+	int
+	default 4096 if BOARD_TTGO_T7V1_5_ESP32_PROCPU
+	default 256 if BOARD_TTGO_T7V1_5_ESP32_APPCPU

boards/lilygo/ttgo_t7v1_5/Kconfig.sysbuild

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+# Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
+# SPDX-License-Identifier: Apache-2.0
+
+choice BOOTLOADER
+	default BOOTLOADER_MCUBOOT
+endchoice
+
+choice BOOT_SIGNATURE_TYPE
+	default BOOT_SIGNATURE_TYPE_NONE
+endchoice

boards/lilygo/ttgo_t7v1_5/Kconfig.ttgo_t7v1_5

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+# Copyright 2024 Tobias Kässer <t.kaesser@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_TTGO_T7V1_5
+	select SOC_ESP32
+	select SOC_ESP32_PROCPU if BOARD_TTGO_T7V1_5_ESP32_PROCPU
+	select SOC_ESP32_APPCPU if BOARD_TTGO_T7V1_5_ESP32_APPCPU

boards/lilygo/ttgo_t7v1_5/board.cmake

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+# 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/lilygo/ttgo_t7v1_5/board.yml

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+board:
+  name: ttgo_t7v1_5
+  vendor: lilygo
+  socs:
+  - name: esp32

boards/lilygo/ttgo_t7v1_5/doc/index.rst

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+.. zephyr:board:: ttgo_t7v1_5
+
+Overview
+********
+
+LILYGO® TTGO T7 Mini32 V1.5 ia an IoT mini development board
+based on the Espressif ESP32-WROVER-E module.
+
+It features the following integrated components:
+- ESP32 chip (240MHz dual core, 520KB SRAM, Wi-Fi, Bluetooth)
+- on board antenna
+- Micro-USB connector for power and communication
+- JST GH 2-pin battery connector
+- LED
+
+Functional Description
+**********************
+This board is based on the ESP32-WROVER-E module with 4MB of flash (there
+are models 16MB as well), WiFi and BLE support. It has a Micro-USB port for
+programming and debugging, integrated battery charging and an on-board antenna.
+
+Connections and IOs
+===================
+
+The ``ttgo_t7v1_5/esp32/procpu`` board target supports the following hardware features:
+
++-----------+------------+------------------+
+| Interface | Controller | Driver/Component |
++===========+============+==================+
+| CPU       | ESP32      | arch/xtensa      |
++-----------+------------+------------------+
+| GPIO      | on-chip    | gpio_esp32       |
++-----------+------------+------------------+
+| UART      | on-chip    | uart_esp32       |
++-----------+------------+------------------+
+| I2C       | on-chip    | i2c_esp32        |
++-----------+------------+------------------+
+| SPI       | on-chip    | spi_esp32_spim   |
++-----------+------------+------------------+
+| LoRa      | SX1276     | lora_sx127x      |
++-----------+------------+------------------+
+| WiFi      | on-chip    | wifi_esp32       |
++-----------+------------+------------------+
+| BLE       | on-chip    | bluetooth_esp32  |
++-----------+------------+------------------+
+| Flash     | on-chip    | flash_esp32      |
++-----------+------------+------------------+
+
+System requirements
+*******************
+
+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
+*******************
+
+Simple boot
+===========
+
+The board could be loaded using the single binary image, without 2nd stage bootloader.
+It is the default option when building the application without additional configuration.
+
+.. note::
+
+   Simple boot does not provide any security features nor OTA updates.
+
+MCUboot bootloader
+==================
+
+User may choose to use MCUboot bootloader instead. In that case the bootloader
+must be build (and flash) at least once.
+
+There are two options to be used when building an application:
+
+1. Sysbuild
+2. Manual build
+
+.. note::
+
+   User can select the MCUboot bootloader by adding the following line
+   to the board default configuration file.
+
+   .. code:: cfg
+
+      CONFIG_BOOTLOADER_MCUBOOT=y
+
+Sysbuild
+========
+
+The sysbuild makes possible to build and flash all necessary images needed to
+bootstrap the board with the ESP32 SoC.
+
+To build the sample application using sysbuild use the command:
+
+.. zephyr-app-commands::
+   :tool: west
+   :app: samples/hello_world
+   :board: ttgo_t7v1_5/esp32/procpu
+   :goals: build
+   :west-args: --sysbuild
+   :compact:
+
+By default, the ESP32 sysbuild creates bootloader (MCUboot) and application
+images. But it can be configured to create other kind of images.
+
+Build directory structure created by sysbuild is different from traditional
+Zephyr build. Output is structured by the domain subdirectories:
+
+.. code-block::
+
+  build/
+  ├── hello_world
+  │   └── zephyr
+  │       ├── zephyr.elf
+  │       └── zephyr.bin
+  ├── mcuboot
+  │    └── zephyr
+  │       ├── zephyr.elf
+  │       └── zephyr.bin
+  └── domains.yaml
+
+.. note::
+
+   With ``--sysbuild`` option the bootloader will be re-build and re-flash
+   every time the pristine build is used.
+
+For more information about the system build please read the :ref:`sysbuild` documentation.
+
+Manual build
+============
+
+During the development cycle, it is intended to build & flash as quickly possible.
+For that reason, images can be build one at a time using traditional build.
+
+The instructions following are relevant for both manual build and sysbuild.
+The only difference is the structure of the build directory.
+
+.. note::
+
+   Remember that bootloader (MCUboot) needs to be flash at least once.
+
+Build and flash applications as usual (see :ref:`build_an_application` and
+:ref:`application_run` for more details).
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: ttgo_t7v1_5/esp32/procpu
+   :goals: build
+
+The usual ``flash`` target will work with the ``ttgo_t7v1_5`` board
+configuration. Here is an example for the :zephyr:code-sample:`hello_world`
+application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: ttgo_t7v1_5/esp32/procpu
+   :goals: flash
+
+The default baud rate for the Lilygo TTGO T7 V1.5 is set to 1500000bps. If experiencing issues when flashing,
+try using different values by using ``--esp-baud-rate <BAUD>`` option during
+``west flash`` (e.g. ``west flash --esp-baud-rate 115200``).
+
+You can also open the serial monitor using the following command:
+
+.. code-block:: shell
+
+   west espressif monitor
+
+After the board has automatically reset and booted, you should see the following
+message in the monitor:
+
+.. code-block:: console
+
+   ***** Booting Zephyr OS vx.x.x-xxx-gxxxxxxxxxxxx *****
+   Hello World! ttgo_t7v1_5
+
+Sample applications
+===================
+
+The following samples will run out of the box on the TTGO T7 V1.5 board.
+
+To build the blinky sample:
+
+.. zephyr-app-commands::
+   :tool: west
+   :app: samples/basic/blinky
+   :board: ttgo_t7v1_5/esp32/procpu
+   :goals: build
+
+To build the bluetooth beacon sample:
+
+.. zephyr-app-commands::
+   :tool: west
+   :app: samples/bluetooth/beacon
+   :board: ttgo_t7v1_5/esp32/procpu
+   :goals: build
+
+
+Related Documents
+*****************
+.. _`Lilygo TTGO T7-V1.5 schematic`: https://github.com/LilyGO/TTGO-T7-Demo/blob/master/t7_v1.5.pdf
+.. _`Lilygo github repo`: https://github.com/LilyGO/TTGO-T7-Demo/tree/master
+.. _`Espressif ESP32-WROVER-E datasheet`: https://www.espressif.com/sites/default/files/documentation/esp32-wrover-e_esp32-wrover-ie_datasheet_en.pdf
+.. _`OpenOCD ESP32`: https://github.com/espressif/openocd-esp32/releases

boards/lilygo/ttgo_t7v1_5/support/openocd.cfg

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+set ESP_RTOS none
+
+source [find interface/esp_usb_jtag.cfg]
+
+source [find target/esp32.cfg]
+adapter_khz 5000

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5-pinctrl.dtsi

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+/*
+ * Copyright 2024 Tobias Kässer <t.kaesser@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
+#include <dt-bindings/pinctrl/esp32-pinctrl.h>
+#include <zephyr/dt-bindings/pinctrl/esp32-gpio-sigmap.h>
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			pinmux = <UART0_TX_GPIO1>;
+			output-high;
+		};
+		group2 {
+			pinmux = <UART0_RX_GPIO3>;
+			bias-pull-up;
+		};
+	};
+
+	spim3_default: spim3_default {
+		group1 {
+			pinmux = <SPIM3_MISO_GPIO19>,
+				 <SPIM3_SCLK_GPIO18>;
+		};
+		/* GPIO5 is CS */
+		group2 {
+			pinmux = <SPIM3_MOSI_GPIO23>;
+			output-low;
+		};
+	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <I2C1_SDA_GPIO21>,
+				 <I2C1_SCL_GPIO22>;
+			bias-pull-up;
+			drive-open-drain;
+			output-high;
+		};
+	};
+};

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_appcpu.dts

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+/*
+ * Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/dts-v1/;
+
+#include <espressif/esp32/esp32_appcpu.dtsi>
+#include <espressif/partitions_0x1000_amp.dtsi>
+
+/ {
+	model = "ttgo t7 v1.5 APPCPU";
+	compatible = "espressif,esp32";
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,ipc_shm = &shm0;
+		zephyr,ipc = &ipm0;
+	};
+};
+
+&ipm0 {
+	status = "okay";
+};
+
+&trng0 {
+	status = "okay";
+};

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_appcpu.yaml

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+identifier: ttgo_t7v1_5/esp32/appcpu
+name: TTGO T7 V1.5 APPCPU
+type: mcu
+arch: xtensa
+toolchain:
+  - zephyr
+supported:
+  - uart
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+    - flash
+    - cpp
+    - posix
+    - watchdog
+    - logging
+    - kernel
+    - pm
+    - gpio
+    - crypto
+    - eeprom
+    - heap
+    - cmsis_rtos
+    - jwt
+    - zdsp
+vendor: lilygo

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_appcpu_defconfig

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+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MAIN_STACK_SIZE=2048
+CONFIG_CLOCK_CONTROL=y

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_procpu.dts

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+/*
+ * Copyright 2024 Tobias Kässer <t.kaesser@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/dts-v1/;
+
+#include <espressif/esp32/esp32_wrover_e_n4r8.dtsi>
+#include <espressif/partitions_0x1000_amp.dtsi>
+#include "ttgo_t7v1_5-pinctrl.dtsi"
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "ttgo T7 V1.5 PROCPU";
+	compatible = "lilygo,ttgo-t7v1_5";
+
+	aliases {
+		led0 = &green_led;
+		uart-0 = &uart0;
+		i2c-0 = &i2c0;
+		watchdog0 = &wdt0;
+	};
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		green_led: led_0 {
+			gpios =  <&gpio0 19 GPIO_ACTIVE_HIGH>;
+			label = "Green - LED0";
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-names = "default";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+/* OLED display */
+&i2c0 {
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+	sda-gpios = <&gpio0 21 GPIO_OPEN_DRAIN>;
+	scl-gpios = <&gpio0 22 GPIO_OPEN_DRAIN>;
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
+
+&spi3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+	pinctrl-0 = <&spim3_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
+};
+
+&timer0 {
+	status = "okay";
+};
+
+&timer1 {
+	status = "okay";
+};
+
+&timer2 {
+	status = "okay";
+};
+
+&timer3 {
+	status = "okay";
+};
+
+&trng0 {
+	status = "okay";
+};
+
+&wifi {
+	status = "okay";
+};

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_procpu.yaml

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+identifier: ttgo_lora32/esp32/procpu
+name: TTGO LoRa32 PROCPU
+type: mcu
+arch: xtensa
+toolchain:
+  - zephyr
+supported:
+  - gpio
+  - i2c
+  - spi
+  - watchdog
+  - uart
+  - pinmux
+  - display
+  - lora
+  - nvs
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+vendor: lilygo

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_procpu_defconfig

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_MAIN_STACK_SIZE=2048
+
+CONFIG_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_UART_CONSOLE=y
+
+CONFIG_GPIO=y