[PATCH v3 2/2] ARM: dts: aspeed: Add ASRock Rack B650D4U BMC

Add initial device tree support for the ASRock Rack B650D4U BMC.
The B650D4U is a server motherboard utilizing the ASPEED AST2600
SoC for management.

Signed-off-by: Prasanth Kumar Padarthi <[email protected]>
---
 arch/arm/boot/dts/aspeed/Makefile             |  1 +
 .../dts/aspeed/aspeed-bmc-asrock-b650d4u.dts  | 71 +++++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index c4f064e4b..124d4f8f8 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -13,6 +13,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-asrock-romed8hm3.dtb \
 	aspeed-bmc-asrock-spc621d8hm3.dtb \
 	aspeed-bmc-asrock-x570d4u.dtb \
+	aspeed-bmc-asrock-b650d4u.dtb \
 	aspeed-bmc-asus-x4tf.dtb \
 	aspeed-bmc-bytedance-g220a.dtb \
 	aspeed-bmc-delta-ahe50dc.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts
new file mode 100644
index 000000000..daa8b25e3
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+
+/ {
+	model = "ASRock Rack B650D4U BMC";
+	compatible = "asrock,b650d4u-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = "serial4:115200n8";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+};
+
+/* SPI Flash Management */
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+	};
+};
+
+/* I2C Bus for FRU/EEPROM Storage */
+&i2c7 {
+	status = "okay";
+	eeprom@57 {
+		compatible = "atmel,24c02";
+		reg = <0x57>;
+		pagesize = <16>;
+	};
+};
+
+&mac0 {
+	status = "okay";
+	phy-mode = "rgmii-rxid";
+	phy-handle = <&ethphy0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>;
+};
+
+/* Dedicated management LAN via on-board discrete PHY */
+&mdio0 {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+/* BMC Console UART */
+&uart5 {
+	status = "okay";
+};
+
+/* System Watchdog */
+&wdt1 {
+	status = "okay";
+	aspeed,reset-type = "soc";
+};
-- 
2.47.3