diff --git a/arch/arm/boot/dts/bcm28155-ap.dts b/arch/arm/boot/dts/bcm28155-ap.dts
index 5ff2382..28fe731 100644
--- a/arch/arm/boot/dts/bcm28155-ap.dts
+++ b/arch/arm/boot/dts/bcm28155-ap.dts
@@ -46,7 +46,11 @@
 
 	i2c@3500d000 {
 		status="okay";
-		clock-frequency = <400000>;
+		clock-frequency = <100000>;
+
+		pmu: pmu@8 {
+			reg = <0x08>;
+		};
 	};
 
 	sdio1: sdio@3f180000 {
@@ -57,16 +61,22 @@
 	sdio2: sdio@3f190000 {
 		non-removable;
 		max-frequency = <48000000>;
+		vmmc-supply = <&camldo1_reg>;
+		vqmmc-supply = <&iosr1_reg>;
 		status = "okay";
 	};
 
 	sdio4: sdio@3f1b0000 {
 		max-frequency = <48000000>;
 		cd-gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		vmmc-supply = <&sdldo_reg>;
+		vqmmc-supply = <&sdxldo_reg>;
 		status = "okay";
 	};
 
 	usbotg: usb@3f120000 {
+		vusb_d-supply = <&usbldo_reg>;
+		vusb_a-supply = <&iosr1_reg>;
 		status = "okay";
 	};
 
@@ -74,3 +84,34 @@
 		status = "okay";
 	};
 };
+
+#include "bcm59056.dtsi"
+
+&pmu {
+	interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
+	regs {
+		regulators {
+			camldo1_reg: regulator@1 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			sdldo_reg: regulator@5 {
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+			};
+
+			usbldo_reg: regulator@11 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+
+			iosr1_reg: regulator@14 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/bcm59056.dtsi b/arch/arm/boot/dts/bcm59056.dtsi
new file mode 100644
index 0000000..b04940b
--- /dev/null
+++ b/arch/arm/boot/dts/bcm59056.dtsi
@@ -0,0 +1,162 @@
+/*
+* Copyright 2014 Linaro Limited
+* Author: Matt Porter <mporter@linaro.org>
+*
+* This program is free software; you can redistribute it and/or modify it
+* under  the terms of the GNU General  Public License as published by the
+* Free Software Foundation;  either version 2 of the License, or (at your
+* option) any later version.
+*/
+
+&pmu {
+	compatible = "brcm,bcm59056";
+
+	regs {
+		compatible = "brcm,bcm59056-regs";
+
+		regulators {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rfldo_reg: regulator@0 {
+				reg = <0>;
+				regulator-compatible = "rfldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			camldo1_reg: regulator@1 {
+				reg = <1>;
+				regulator-compatible = "camldo1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			camldo2_reg: regulator@2 {
+				reg = <2>;
+				regulator-compatible = "camldo2";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			simldo1_reg: regulator@3 {
+				reg = <3>;
+				regulator-compatible = "simldo1";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			simldo2_reg: regulator@4 {
+				reg = <4>;
+				regulator-compatible = "simldo2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			sdldo_reg: regulator@5 {
+				reg = <5>;
+				regulator-compatible = "sdldo";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			sdxldo_reg: regulator@6 {
+				reg = <6>;
+				regulator-compatible = "sdxldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			mmcldo1_reg: regulator@7 {
+				reg = <7>;
+				regulator-compatible = "mmcldo1";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			mmcldo2_reg: regulator@8 {
+				reg = <8>;
+				regulator-compatible = "mmcldo2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			audldo_reg: regulator@9 {
+				reg = <9>;
+				regulator-compatible = "audldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			micldo_reg: regulator@10 {
+				reg = <10>;
+				regulator-compatible = "micldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			usbldo_reg: regulator@11 {
+				reg = <11>;
+				regulator-compatible = "usbldo";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			vibldo_reg: regulator@12 {
+				reg = <12>;
+				regulator-compatible = "vibldo";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+
+			csr_reg: regulator@13 {
+				reg = <13>;
+				regulator-compatible = "csr";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1440000>;
+			};
+
+			iosr1_reg: regulator@14 {
+				reg = <14>;
+				regulator-compatible = "iosr1";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			iosr2_reg: regulator@15 {
+				reg = <15>;
+				regulator-compatible = "iosr2";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			msr_reg: regulator@16 {
+				reg = <16>;
+				regulator-compatible = "msr";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			sdsr1_reg: regulator@17 {
+				reg = <17>;
+				regulator-compatible = "sdsr1";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1340000>;
+			};
+
+			sdsr2_reg: regulator@18 {
+				reg = <18>;
+				regulator-compatible = "sdsr2";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			vsr_reg: regulator@19 {
+				reg = <19>;
+				regulator-compatible = "vsr";
+				regulator-min-microvolt = <860000>;
+				regulator-max-microvolt = <1800000>;
+			};
+		};
+	};
+};
