linux-kernel - [PATCH 2/2] ARM: dts: aspeed: Add Asus IPMI card

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Message-ID: <20260111201040.162880-3-anirudhsriniv@gmail.com>
Date: Sun, 11 Jan 2026 14:10:32 -0600
From: Anirudh Srinivasan <anirudhsriniv@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>
Cc: anirudhsriniv@...il.com,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ARM: dts: aspeed: Add Asus IPMI card

Add device tree for Asus IPMI card, an AST2600 BMC PCIe card

Signed-off-by: Anirudh Srinivasan <anirudhsriniv@...il.com>
---
 arch/arm/boot/dts/aspeed/Makefile             |   1 +
 .../dts/aspeed/aspeed-bmc-asus-ipmi-card.dts  | 136 ++++++++++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asus-ipmi-card.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 9adf9278dc94..ff40d9ab88b7 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -15,6 +15,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-asrock-spc621d8hm3.dtb \
 	aspeed-bmc-asrock-x570d4u.dtb \
 	aspeed-bmc-asus-x4tf.dtb \
+	aspeed-bmc-asus-ipmi-card.dtb \
 	aspeed-bmc-bytedance-g220a.dtb \
 	aspeed-bmc-delta-ahe50dc.dtb \
 	aspeed-bmc-facebook-bletchley.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-ipmi-card.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-ipmi-card.dts
new file mode 100644
index 000000000000..fea94360245c
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-ipmi-card.dts
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2025 Anirudh Srinivasan
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include "aspeed-g6-pinctrl.dtsi"
+#include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "ASUS IPMI Card BMC";
+	compatible = "asus,ipmi-card-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = "serial4:115200n8";
+	};
+
+	memory@...00000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		video_engine_memory: video {
+			size = <0x04000000>;
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-fault {
+			gpios = <&gpio1 ASPEED_GPIO(C, 5) GPIO_ACTIVE_HIGH>;
+			panic-indicator;
+			default-state = "off";
+		};
+
+		led-heartbeat {
+			gpios = <&gpio0 ASPEED_GPIO(A, 7) GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "timer";
+		};
+
+	};
+};
+
+&mdio2 {
+	status = "okay";
+
+	ethphy2: ethernet-phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+&mac2 {
+	status = "okay";
+
+	/* Bootloader sets up the MAC to insert delay */
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii3_default>;
+};
+
+
+&fmc {
+	status = "okay";
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+		spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64.dtsi"
+	};
+};
+
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
+&vhub {
+	status = "okay";
+};
+
+&gpio0 {
+	gpio-line-names =
+	/*A0 0*/	"", "", "", "", "", "", "", "BMC_HBLED",
+	/*B0 8*/	"", "", "", "", "", "", "", "",
+	/*C0 16*/	"", "", "", "", "", "", "", "",
+	/*D0 24*/	"", "", "", "", "", "", "", "",
+	/*E0 32*/	"", "", "", "", "", "", "", "",
+	/*F0 40*/	"", "", "", "", "", "", "", "",
+	/*G0 48*/	"", "", "", "", "", "", "", "",
+	/*H0 56*/	"", "", "", "", "", "", "", "",
+	/*I0 64*/	"", "", "", "BMC_RSTBTN", "", "", "", "",
+	/*J0 72*/	"", "", "", "", "", "", "", "",
+	/*K0 80*/	"", "", "", "", "", "", "", "",
+	/*L0 88*/	"", "", "", "", "", "", "", "",
+	/*M0 96*/	"", "", "", "", "", "", "", "",
+	/*N0 104*/	"", "", "", "", "", "", "", "",
+	/*O0 112*/	"", "", "", "", "", "", "", "",
+	/*P0 120*/	"", "", "", "", "", "", "", "",
+	/*Q0 128*/	"", "", "", "", "", "", "", "",
+	/*R0 136*/	"", "", "", "", "", "", "", "",
+	/*S0 144*/	"", "", "", "", "", "", "", "",
+	/*T0 152*/	"", "", "", "", "", "", "", "",
+	/*U0 160*/	"", "", "", "", "", "", "", "",
+	/*V0 168*/	"", "", "", "", "BMC_PWRBTN", "", "MB_S0_DETECT", "",
+	/*W0 176*/	"", "", "", "", "", "", "", "",
+	/*X0 184*/	"", "", "", "", "", "", "", "",
+	/*Y0 192*/	"", "", "", "", "", "", "", "",
+	/*Z0 200*/	"", "", "", "", "", "", "", "";
+};
+
+&gpio1 {
+	gpio-line-names =
+	/*18A0 0*/  "","","","","","","","",
+	/*18B0 8*/  "","","","","","","","",
+	/*18C0 16*/ "","","","","","BMC_MLED","","",
+	/*18D0 24*/ "","","","","","","","",
+	/*18E0 32*/ "","","","","","","","";
+};
-- 
2.52.0