diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 6c34b83336..c9cb54cddd 100755
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -686,6 +686,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	ast2600-evb.dtb \
 	ast2600-dcscm.dtb \
 	ast2600-fpga.dtb \
+	ast2600-greatlakes.dtb \
 	ast2600-intel.dtb \
 	ast2600-ncsi.dtb \
 	ast2600-p10bmc.dtb \
diff --git a/arch/arm/dts/ast2600-greatlakes.dts b/arch/arm/dts/ast2600-greatlakes.dts
new file mode 100644
index 0000000000..59d6c7a087
--- /dev/null
+++ b/arch/arm/dts/ast2600-greatlakes.dts
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2022 Meta Platforms Inc.
+/dts-v1/;
+
+#include "ast2600-u-boot.dtsi"
+
+/ {
+	model = "Facebook Greatlakes BMC";
+	compatible = "facebook,greatlakes-bmc", "aspeed,ast2600";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+	};
+
+	aliases {
+		spi0 = &fmc;
+		ethernet3 = &mac3;
+	};
+
+	cpus {
+		cpu@0 {
+			clock-frequency = <800000000>;
+		};
+		cpu@1 {
+			clock-frequency = <800000000>;
+		};
+	};
+};
+
+&uart5 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&sdrammc {
+	clock-frequency = <400000000>;
+};
+
+&wdt1 {
+	status = "okay";
+};
+
+&wdt2 {
+	status = "okay";
+};
+
+&wdt3 {
+	status = "okay";
+};
+
+&mdio {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_mdio4_default>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	ethphy3: ethernet-phy@3 {
+		reg = <0>;
+	};
+};
+
+&mac3 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii4_default>;
+};
+
+&fmc {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fmcquad_default>;
+
+	flash@0 {
+		status = "okay";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+
+	flash@1 {
+		status = "okay";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+};
+
+&gpio0 {
+	status = "okay";
+	line_148 {
+		gpio-hog;
+		gpios = <148 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "bmc-slot1-isolated-enabled";
+	};
+	line_149 {
+		gpio-hog;
+		gpios = <149 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "bmc-slot2-isolated-enabled";
+	};
+	line_150 {
+		gpio-hog;
+		gpios = <150 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "bmc-slot3-isolated-enabled";
+	};
+	line_151 {
+		gpio-hog;
+		gpios = <151 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "bmc-slot4-isolated-enabled";
+	};
+};
+
+&i2c0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1_default>;
+};
+
+&i2c1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2_default>;
+};
+
+&i2c2 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3_default>;
+};
+
+&i2c3 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4_default>;
+};
+
+&i2c4 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c5_default>;
+};
+
+&i2c5 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c6_default>;
+};
+
+&i2c6 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c7_default>;
+};
+
+&i2c7 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c8_default>;
+};
+
+&i2c8 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c9_default>;
+};
+
+&scu {
+	mac0-clk-delay = <0x10 0x0a
+			  0x10 0x10
+			  0x10 0x10>;
+	mac1-clk-delay = <0x10 0x0a
+			  0x10 0x10
+			  0x10 0x10>;
+	mac2-clk-delay = <0x08 0x04
+			  0x08 0x04
+			  0x08 0x04>;
+	mac3-clk-delay = <0x08 0x04
+			  0x08 0x04
+			  0x08 0x04>;
+};
+
+&hace {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
diff --git a/configs/ast2600_openbmc_spl_defconfig b/configs/ast2600_openbmc_spl_defconfig
index 95d7651b8e..efd683570f 100644
--- a/configs/ast2600_openbmc_spl_defconfig
+++ b/configs/ast2600_openbmc_spl_defconfig
@@ -100,6 +100,7 @@ CONFIG_ASPEED_ACRY=y
 CONFIG_DM_GPIO=y
 CONFIG_SPL_GPIO_HOG=y
 CONFIG_ASPEED_GPIO=y
+CONFIG_GPIO_HOG=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_ASPEED=y
 CONFIG_MISC=y
