linux-kernel - [PATCH 2/2] arm64: dts: socfpga: agilex5: add support for modular board

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Message-Id: <20251202101652.2317844-3-niravkumarlaxmidas.rabara@altera.com>
Date: Tue,  2 Dec 2025 18:16:52 +0800
From: niravkumarlaxmidas.rabara@...era.com
To: Dinh Nguyen <dinguyen@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Niravkumar L Rabara <niravkumarlaxmidas.rabara@...era.com>
Subject: [PATCH 2/2] arm64: dts: socfpga: agilex5: add support for modular board

From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@...era.com>

The Agilex5 Modular board consists of a compute module (Agilex5 SoCFPGA)
attached to a carrier board that provides PCIe and additional system
interfaces.

Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@...era.com>
---
Note: This patch is based on socfpga maintainer's tree
https://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git/log/?h=socfpga_dts_for_v6.19

 arch/arm64/boot/dts/intel/Makefile            |   1 +
 .../intel/socfpga_agilex5_socdk_modular.dts   | 109 ++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_modular.dts

diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index a117268267ee..b15e9c5083b6 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex3_socdk.dtb \
 				socfpga_agilex5_socdk.dtb \
 				socfpga_agilex5_socdk_013b.dtb \
+				socfpga_agilex5_socdk_modular.dtb \
 				socfpga_agilex5_socdk_nand.dtb \
 				socfpga_n5x_socdk.dtb
 dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_modular.dts b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_modular.dts
new file mode 100644
index 000000000000..1831402d8808
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_modular.dts
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2025, Altera Corporation
+ */
+#include "socfpga_agilex5.dtsi"
+
+/ {
+	model = "SoCFPGA Agilex5 SoCDK - Modular development kit";
+	compatible = "intel,socfpga-agilex5-socdk-modular", "intel,socfpga-agilex5";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet2 = &gmac2;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0 {
+			label = "hps_led0";
+			gpios = <&porta 0x0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	memory@...00000 {
+		device_type = "memory";
+		/* We expect the bootloader to fill in the reg */
+		reg = <0x0 0x80000000 0x0 0x0>;
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gmac2 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&emac2_phy0>;
+	max-frame-size = <9000>;
+
+	mdio0 {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		emac2_phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&osc1 {
+	clock-frequency = <25000000>;
+};
+
+&qspi {
+	status = "okay";
+	flash@0 {
+		compatible = "micron,mt25qu02g", "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <100000000>;
+		m25p,fast-read;
+		cdns,read-delay = <2>;
+		cdns,tshsl-ns = <50>;
+		cdns,tsd2d-ns = <50>;
+		cdns,tchsh-ns = <4>;
+		cdns,tslch-ns = <4>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			qspi_boot: partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x04200000>;
+			};
+
+			root: partition@...0000 {
+				label = "root";
+				reg = <0x04200000 0x0be00000>;
+			};
+		};
+	};
+};
+
+&smmu {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog0 {
+	status = "okay";
+};
-- 
2.25.1