Add ADAQ23878 dts. Fix osc freq for ADAQ23875

Will squash after review.

Signed-off-by: Iulia Moldovan <[email protected]>

Author: IuliaCMoldovan

arch/arm/boot/dts/xilinx/zynq-zed-adv7511-adaq23875.dts

@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Analog Devices LTC2387-16/ADAQ23875
+ * Analog Devices ADAQ23875/LTC2387-16
  *
- * hdl_project: <cn0577/zed with make parameter ADC_RES=16>
+ * hdl_project: <adaq2387x/zed with make parameter ADC_RES=16>
  * for all config modes, please check the README of the HDL project
  * board_revision: <A>
  *
@@ -28,7 +28,7 @@
 		ext_clk: clock@0 {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
-			clock-frequency = <120000000>;
+			clock-frequency = <100000000>;
 		};
 	};
 	gpio-control@0 {

arch/arm/boot/dts/xilinx/zynq-zed-adv7511-adaq23878.dts

@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Analog Devices ADAQ23878
+ *
+ * hdl_project: <adaq2387x/zed>
+ * for all config modes, please check the README of the HDL project
+ * board_revision: <A>
+ *
+ * Copyright (C) 2022 - 2025 Analog Devices Inc.
+ */
+/dts-v1/;
+
+#include "zynq-zed.dtsi"
+#include "zynq-zed-adv7511.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	vref: regulator-vref {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-supply";
+		regulator-min-microvolt = <4096000>;
+		regulator-max-microvolt = <4096000>;
+		regulator-always-on;
+	};
+
+	clocks {
+		ext_clk: clock@0 {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <100000000>;
+		};
+	};
+	gpio-control@0 {
+		compatible = "adi,one-bit-adc-dac";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		out-gpios = <&gpio0 86 GPIO_ACTIVE_HIGH>,
+			    <&gpio0 87 GPIO_ACTIVE_HIGH>;
+		channel@0 {
+			reg = <0>;
+			label = "adaq23878_testpat";
+		};
+		channel@1 {
+			reg = <1>;
+			label = "adaq23878_pd";
+		};
+	};
+};
+
+&fpga_axi {
+	rx_dma: dma-controller@44a30000 {
+		compatible = "adi,axi-dmac-1.00.a";
+		reg = <0x44a30000 0x1000>;
+		#dma-cells = <1>;
+		interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clkc 15>;
+
+		adi,channels {
+			#size-cells = <0>;
+			#address-cells = <1>;
+
+			dma-channel@0 {
+				reg = <0>;
+				adi,source-bus-width = <32>;
+				adi,source-bus-type = <2>;
+				adi,destination-bus-width = <64>;
+				adi,destination-bus-type = <0>;
+			};
+		};
+	};
+
+	axi_pwm_gen: pwm@44a60000 {
+		compatible = "adi,axi-pwmgen-2.00.a";
+		reg = <0x44a60000 0x1000>;
+		label = "adaq23878_if";
+		#pwm-cells = <2>;
+		clocks = <&clkc 15>, <&ext_clk>;
+		clock-names = "axi", "ext";
+	};
+
+	adaq23878@0{
+		compatible = "adaq23878";
+		clocks = <&ext_clk>;
+		dmas = <&rx_dma 0>;
+		dma-names = "rx";
+		pwms = <&axi_pwm_gen 0 0
+			&axi_pwm_gen 1 0>;
+		pwm-names = "cnv", "clk_en";
+		vref-supply = <&vref>;
+
+		// uncomment the below command to use in one lane mode
+		// adi,use-one-lane;
+	};
+};