boards: beagle: add BeaglePlay on-board CC1352P7

Add support for BeaglePlay, a TI AM6254 SoC based development board with a
CC1352P7 wireless microcontroller for supporting software defined 2.4GHz
and SubGHz wireless protocols. Support for running Zephyr on the
quad-A53 SoC or the programmable M4 on the SoC would be provided
separately.

See https://beagleplay.org for details.

Signed-off-by: Jason Kridner <[email protected]>
Signed-off-by: Ayush Singh <[email protected]>

boards/beagle/beagleplay/CMakeLists.txt

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+
+if(CONFIG_SOC_CC1352P7)
+  zephyr_library_sources(../beagleconnect_freedom/board_antenna.c)
+  zephyr_library_compile_definitions("DeviceFamily_CC13X2X7")
+endif()

boards/beagle/beagleplay/Kconfig

@@ -0,0 +1,18 @@
+# BeaglePlay CC1352 board configuration
+
+# Copyright (c) 2020 Erik Larson
+# Copyright (c) 2021-2022 Jason Kridner, BeagleBoard.org Foundation
+# Copyright (c) 2024 Ayush Singh <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_BEAGLEPLAY_CC1352P7
+
+config BOARD_ANTENNA_INIT_PRIO
+	int "Board antenna switch initialization priority"
+	default 70
+	help
+	  Set the priority for board init, must be greater than
+	  KERNEL_INIT_PRIORITY_DEVICE but smaller than
+	  IEEE802154_CC13XX_CC26XX_SUB_GHZ_INIT_PRIO.
+
+endif # BOARD_BEAGLEPLAY_CC1352

boards/beagle/beagleplay/Kconfig.beagleplay

@@ -0,0 +1,11 @@
+# BeaglePlay board configuration
+
+# Copyright (c) 2020 Erik Larson
+# Copyright (c) 2021-2022 Jason Kridner, BeagleBoard.org Foundation
+# Copyright (c) 2024 Ayush Singh, BeagleBoard.org Foundation
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_BEAGLEPLAY
+	select SOC_CC1352P7 if BOARD_BEAGLEPLAY_CC1352P7
+	help
+	  BeagleBoard.org BeaglePlay CC1352P7

boards/beagle/beagleplay/beagleplay-cc1352p7-pinctrl.dtsi

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2022 Vaishnav Achath
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/cc13xx_cc26xx-pinctrl.h>
+
+&pinctrl {
+	/* UART0 */
+	uart0_tx_default: uart0_tx_default {
+		pinmux = <13 IOC_PORT_MCU_UART0_TX>;
+		bias-disable;
+	};
+	uart0_rx_default: uart0_rx_default {
+		pinmux = <12 IOC_PORT_MCU_UART0_RX>;
+		bias-disable;
+		input-enable;
+	};
+
+	/* Antenna pinmux states */
+	board_ant_tx_pa_off: board_ant_tx_pa_off {
+		pinmux = <29 IOC_PORT_GPIO>;
+		bias-disable;
+	};
+	board_ant_tx_pa_on: board_ant_tx_pa_on {
+		pinmux = <29 IOC_PORT_RFC_GPO3>;
+		bias-disable;
+	};
+	board_ant_subg_off: board_ant_subg_off {
+		pinmux = <30 IOC_PORT_GPIO>;
+		bias-disable;
+	};
+	board_ant_subg_on: board_ant_subg_on {
+		pinmux = <30 IOC_PORT_RFC_GPO0>;
+		bias-disable;
+	};
+};

boards/beagle/beagleplay/beagleplay_cc1352p7.dts

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2022 Jason Kridner, BeagleBoard.org Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <ti/cc1352r7.dtsi>
+#include "beagleplay-cc1352p7-pinctrl.dtsi"
+
+/ {
+	model = "beagleplay";
+	compatible = "beagle,beagleplay-cc1352p7";
+
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+	};
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,flash = &flash0;
+		zephyr,ieee802154 = &ieee802154g;
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+		led0: led_0 {
+			gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+			label = "LED1";
+		};
+
+		led1: led_1 {
+			gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
+			label = "LED2";
+		};
+	};
+
+	/**
+	 * The BeaglePlay cc1352 has an on-board antenna switch (SKY13317-373LF) used to
+	 * select the appropriate RF signal port based on the currently-used PHY.
+	 *
+	 * Truth table:
+	 *
+	 * Path         DIO29 DIO30
+	 * ===========  ===== =====
+	 * Off          0     0
+	 * Sub-1 GHz    0     1     // DIO30 mux to IOC_PORT_RFC_GPO0 for auto
+	 * 20 dBm TX    1     0     // DIO29 mux to IOC_PORT_RFC_GPO3 for auto
+	 */
+	antenna_mux0: antenna_mux0 {
+		compatible = "skyworks,sky13317";
+		status = "okay";
+		gpios = <&gpio0 29 GPIO_ACTIVE_HIGH>, <&gpio0 30 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&board_ant_tx_pa_off &board_ant_subg_off>;
+		pinctrl-1 = <&board_ant_tx_pa_off &board_ant_subg_on>;
+		pinctrl-2 = <&board_ant_tx_pa_on &board_ant_subg_on>;
+		pinctrl-names = "default", "ant_subg", "ant_subg_pa";
+	};
+};
+
+&cpu0 {
+	clock-frequency = <48000000>;
+	cpu-power-states = <&idle &standby>;
+};
+
+&trng {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_rx_default &uart0_tx_default>;
+	pinctrl-names = "default";
+};
+
+&rtc {
+	status = "okay";
+};
+
+&ieee802154 {
+	status = "okay";
+};
+
+&ieee802154g {
+	status = "okay";
+};

boards/beagle/beagleplay/beagleplay_cc1352p7.yaml

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+identifier: beagleplay/cc1352p7
+name: BeaglePlay CC1352P7
+type: mcu
+arch: arm
+ram: 144
+flash: 704
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - gpio
+  - uart
+  - hwinfo
+vendor: beagle

boards/beagle/beagleplay/beagleplay_cc1352p7_defconfig

@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2022 Jason Kridner, BeagleBoard.org Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_GPIO=y
+
+CONFIG_BUILD_OUTPUT_HEX=y
+# Custom callback for the antenna switch configuration
+CONFIG_CC13X2_CC26X2_HAS_CUSTOM_RF_HWATTRS=y
+CONFIG_CC13X2_CC26X2_BOOTLOADER_ENABLE=y
+CONFIG_CC13X2_CC26X2_BOOTLOADER_BACKDOOR_ENABLE=y
+CONFIG_CC13X2_CC26X2_BOOTLOADER_BACKDOOR_PIN=15
+
+CONFIG_ARM_MPU=y
+CONFIG_HW_STACK_PROTECTION=y
+
+# Adjust for oscillator capacitors
+CONFIG_CC13X2_CC26X2_XOSC_CAPARRAY_DELTA=0x02

boards/beagle/beagleplay/board.cmake

@@ -0,0 +1,15 @@
+# Copyright (c) 2020 Erik Larson
+# Copyright (c) 2023 Jason Kridner, BeagleBoard.org Foundation
+# Copyright (c) 2024 Ayush Singh, BeagleBoard.org Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# Download cc1352-flasher (https://pypi.org/project/cc1352-flasher/) using the following command:
+# pip3 install cc1352-flasher
+# Be sure to disable the bcfserial driver because it will capture /dev/ttyS4
+
+if(CONFIG_SOC_CC1352P7)
+  find_program(CC1352_FLASHER NAMES cc1352_flasher)
+  board_set_flasher_ifnset(misc-flasher)
+  board_finalize_runner_args(misc-flasher ${CC1352_FLASHER} --play)
+endif()

boards/beagle/beagleplay/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: beagleplay
+  vendor: beagle
+  socs:
+  - name: cc1352p7