[PATCH 2/2] arm64: dts: agilex5: add support for debug daughter card

[Adrian Ng Ho Yin]

Add a new dts for the Agilex 5 SoCDK when fitted with the debug daughter
card where several peripherals such as gpio0 and gmac2 are disabled while
gmac0 and spi0 are enabled hence requiring a separate device tree.

Signed-off-by: Niravkumar L Rabara <nirav.rabara@xxxxxxxxxx>
Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@xxxxxxxxxx>
---
 arch/arm64/boot/dts/intel/Makefile            |  1 +
 .../dts/intel/socfpga_agilex5_socdk_debug.dts | 50 +++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts

diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index 088a03b89c99..84982bf13ee5 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -6,6 +6,7 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex3_socdk.dtb \
 				socfpga_agilex5_socdk.dtb \
 				socfpga_agilex5_socdk_013b.dtb \
+				socfpga_agilex5_socdk_debug.dtb \
 				socfpga_agilex5_socdk_modular.dtb \
 				socfpga_agilex5_socdk_nand.dtb \
 				socfpga_agilex7m_socdk.dtb \
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts
new file mode 100644
index 000000000000..3981a9e876b0
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier:     GPL-2.0
+/*
+ * Copyright (C) 2026, Altera Corporation
+ */
+#include "socfpga_agilex5_socdk.dts"
+
+/ {
+	model = "SoCFPGA Agilex5 SoCDK - debug daughter card";
+	compatible = "intel,socfpga-agilex5-socdk-debug", "intel,socfpga-agilex5";
+
+	leds {
+		led-0 {
+			gpios = <&portb 12 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&gmac0 {
+	status = "okay";
+	phy-mode = "rgmii"; /* TX/RX clock delays provided by Agilex5 I/O hardware */
+	phy-handle = <&emac0_phy0>;
+
+	max-frame-size = <9000>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		emac0_phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&gmac2 {
+	status = "disabled";
+};
+
+&gpio0 {
+	status = "disabled";
+};
+
+&spi0 {
+	status = "okay";
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
-- 
2.49.GIT