diff --git a/arch/arm/dts/socfpga_arria10_mercury_aa1-u-boot.dtsi b/arch/arm/dts/socfpga_arria10_mercury_aa1-u-boot.dtsi
new file mode 100644
index 0000000000..365e05100a
--- /dev/null
+++ b/arch/arm/dts/socfpga_arria10_mercury_aa1-u-boot.dtsi
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2022 Google LLC
+ */
+#include "socfpga_arria10-u-boot.dtsi"
+
+/ {
+	chosen {
+		firmware-loader = <&fs_loader0>;
+	};
+
+	fs_loader0: fs-loader {
+		u-boot,dm-pre-reloc;
+		compatible = "u-boot,fs-loader";
+		phandlepart = <&mmc 1>;
+	};
+};
+
+&atsha204a {
+	u-boot,dm-pre-reloc;
+};
+
+&fpga_mgr {
+	u-boot,dm-pre-reloc;
+	altr,bitstream = "fpga.itb";
+};
+
+&i2c1 {
+	u-boot,dm-pre-reloc;
+};
+
+&main_sdmmc_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&mmc {
+	u-boot,dm-pre-reloc;
+};
+
+&peri_sdmmc_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&sdmmc_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&sdmmc_free_clk {
+	u-boot,dm-pre-reloc;
+};
+
+&uart1 {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/dts/socfpga_arria10_mercury_aa1.dtsi b/arch/arm/dts/socfpga_arria10_mercury_aa1.dtsi
new file mode 100644
index 0000000000..fee1fc39bb
--- /dev/null
+++ b/arch/arm/dts/socfpga_arria10_mercury_aa1.dtsi
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2022 Google LLC
+ */
+#include "socfpga_arria10.dtsi"
+
+/ {
+	aliases {
+		ethernet0 = &gmac0;
+		serial1 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial1:115200n8";
+	};
+
+	memory@0 {
+		name = "memory";
+		device_type = "memory";
+		reg = <0x0 0x80000000>; /* 2GB */
+	};
+};
+
+&gmac0 {
+	phy-mode = "rgmii";
+	phy-handle = <&phy3>;
+
+	max-frame-size = <3800>;
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy3: ethernet-phy@3 {
+			reg = <3>;
+			txd0-skew-ps = <0>; /* -420ps */
+			txd1-skew-ps = <0>; /* -420ps */
+			txd2-skew-ps = <0>; /* -420ps */
+			txd3-skew-ps = <0>; /* -420ps */
+			rxd0-skew-ps = <420>; /* 0ps */
+			rxd1-skew-ps = <420>; /* 0ps */
+			rxd2-skew-ps = <420>; /* 0ps */
+			rxd3-skew-ps = <420>; /* 0ps */
+			txen-skew-ps = <0>; /* -420ps */
+			txc-skew-ps = <1860>; /* 960ps */
+			rxdv-skew-ps = <420>; /* 0ps */
+			rxc-skew-ps = <1680>; /* 780ps */
+		};
+	};
+};
+
+&i2c1 {
+	atsha204a: atsha204a@64 {
+		compatible = "atmel,atsha204a";
+		reg = <0x64>;
+	};
+
+	isl12022: isl12022@6f {
+		compatible = "isil,isl12022";
+		reg = <0x6f>;
+	};
+};
+
+&mmc {
+	cap-sd-highspeed;
+	broken-cd;
+	bus-width = <4>;
+};
+
+&osc1 {
+	clock-frequency = <33330000>;
+};