boards: xtensa: add heltec_wireless_stick_lite_v3

Adds support for the Wireless Stick Lite (V3),
a development board from HelTec Automation.

Signed-off-by: Adolfo E. García <[email protected]>

Author: adolfogc

boards/xtensa/heltec_wireless_stick_lite_v3/CMakeLists.txt

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_GPIO_ESP32)
+  zephyr_library()
+  zephyr_library_sources(board_init.c)
+endif()

boards/xtensa/heltec_wireless_stick_lite_v3/Kconfig.board

@@ -0,0 +1,13 @@
+# Heltec Wireless Stick Lite (V3) board configuration
+
+# Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
+# Copyright (c) 2023 The Zephyr Project Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_HELTEC_WIRELESS_STICK_LITE
+	bool "Heltec Wireless Stick Lite (V3) Board"
+	depends on SOC_SERIES_ESP32S3
+
+choice SOC_PART_NUMBER
+	default SOC_ESP32S3_FN8
+endchoice

boards/xtensa/heltec_wireless_stick_lite_v3/Kconfig.defconfig

@@ -0,0 +1,21 @@
+# Heltec Wireless Stick Lite (V3) board configuration
+
+# Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
+# Copyright (c) 2023 The Zephyr Project Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD
+	default "heltec_wireless_stick_lite_v3"
+	depends on BOARD_HELTEC_WIRELESS_STICK_LITE
+
+config ENTROPY_GENERATOR
+	default y
+
+config HEAP_MEM_POOL_SIZE
+	default 98304 if WIFI
+	default 40960 if BT
+	default 4096
+
+choice BT_HCI_BUS_TYPE
+	default BT_ESP32 if BT
+endchoice

boards/xtensa/heltec_wireless_stick_lite_v3/Kconfig.sysbuild

@@ -0,0 +1,10 @@
+# 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/xtensa/heltec_wireless_stick_lite_v3/board.cmake

@@ -0,0 +1,9 @@
+# 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/xtensa/heltec_wireless_stick_lite_v3/board_init.c

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br)
+ * Copyright (c) 2023 The Zephyr Project Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/device.h>
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/init.h>
+
+#define VEXT_PIN  DT_GPIO_PIN(DT_NODELABEL(vext), gpios)
+
+static int board_heltec_wireless_stick_lite_v3_init(void)
+{
+	const struct device *gpio;
+
+	gpio = DEVICE_DT_GET(DT_NODELABEL(gpio0));
+	if (!device_is_ready(gpio)) {
+		return -ENODEV;
+	}
+
+	/* turns external VCC on  */
+	gpio_pin_configure(gpio, VEXT_PIN, GPIO_OUTPUT);
+	gpio_pin_set_raw(gpio, VEXT_PIN, 0);
+
+	return 0;
+}
+
+SYS_INIT(board_heltec_wireless_stick_lite_v3_init, PRE_KERNEL_2, CONFIG_GPIO_INIT_PRIORITY);