boards: shields: add support for nrf2240ek

This commit adds initial support for the nrf2240ek shield.

Signed-off-by: Andrzej Kuros <andrzej.kuros@nordicsemi.no>

boards/shields/nrf2240ek/Kconfig.shield

@@ -0,0 +1,8 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+config SHIELD_NRF2240EK
+	def_bool $(shields_list_contains,nrf2240ek)

boards/shields/nrf2240ek/boards/nrf5340dk_nrf5340_cpunet.overlay

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+/* Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* On nrf5340_cpunet the uart0 conflicts with nrf_radio_fem_twi and must be disabled. */
+&uart0 {
+	status = "disabled";
+};

boards/shields/nrf2240ek/nrf2240ek.conf

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+CONFIG_BOOT_BANNER=n
+CONFIG_EARLY_CONSOLE=n

boards/shields/nrf2240ek/nrf2240ek.overlay

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+/* Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* Pin mapping suitable for use nRF2240-EK PCA63564 with
+ * Nordic Interposer Board A PCA64172 v0.2.0.
+ * The nRF2240-EK in SLOT 2 of PCA64172.
+ */
+
+/ {
+	nrf_radio_fem: nrf2240_fem {
+		compatible = "nordic,nrf2240-fem";
+		cs-gpios = <&arduino_header 14 GPIO_ACTIVE_HIGH>;	/* D8 */
+		md-gpios = <&arduino_header 13 GPIO_ACTIVE_HIGH>;	/* D7 */
+		pwrmd-gpios = <&arduino_header 4 GPIO_ACTIVE_HIGH>;	/* A4 */
+		twi-if = <&nrf_radio_fem_twi>;
+	};
+};
+
+fem_twi: &arduino_i2c {
+	status = "okay";
+	compatible = "nordic,nrf-twim";
+
+	nrf_radio_fem_twi: nrf2240_fem_twi@30 {
+		compatible = "nordic,nrf2240-fem-twi";
+		status = "okay";
+		reg = <0x30>;
+	};
+};

boards/shields/nrf2240ek/nrf2240ek_fwd.overlay

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+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/* This file matches the contents of nrf2240ek.overlay and is intended to be applied to nRF5340
+ * application core when nrf2240ek shield is provided to the network core's image build.
+ *
+ * For instance, consider an application targeted for nRF5340 application core that specifies
+ * a child image targeted for nRF5340 network core, which drives the nRF2240 Front-End Module.
+ * The shield overlays could be provided to the build using the following command:
+ *
+ * west build -p -b nrf5340dk/nrf5340/cpuapp -- -DSHIELD=nrf2240ek_fwd -D<child_image>_SHIELD=nrf2240ek
+ */
+
+&gpio_fwd {
+	nrf2240-gpio-if {
+		gpios = <&arduino_header 14 0>,	/* cs-gpios */
+			<&arduino_header 13 0>,	/* md-gpios */
+			<&arduino_header 4 0>;	/* pwrmd-gpios */
+	};
+	nrf2240-twi-if {
+		gpios = <&gpio1 2 0>,		/* TWIM_SDA */
+			<&gpio1 3 0>;		/* TWIM_SCL */
+	};
+};