[U-Boot] [PATCH 4/5] board: ti: beagleboneai: add dts file

[Caleb Robey <c-robey@ti.com>]

From: Jason Kridner <jdk@ti.com>

BeagleBoard.org BeagleBone AI is an open source hardware single
board computer based on the Texas Instruments AM5729 SoC featuring
dual-core 1.5GHz Arm Cortex-A15 processor, dual-core C66 digital
signal processor (DSP), quad-core embedded vision engine (EVE),
Arm Cortex-M4 processors, dual programmable realtime unit
industrial control subsystems and more. The board features 1GB
DDR3L, USB3.0 Type-C, USB HS Type-A, microHDMI, 16GB eMMC flash,
1G Ethernet, 802.11ac 2/5GHz, Bluetooth, and BeagleBone expansion
headers.

For more information, refer to:
https://beaglebone.ai

The corresponding patch against the mainline linux kernel
can be found at: https://patchwork.kernel.org/patch/11254903/ 

This patch introduces the BeagleBone AI device tree.

Note that the device use the "ti,tpd12s016" component which is
software compatible with "ti,tpd12s015". Thus we only use the
latter driver.

Due to small modifications in ocp, a tag was added to dra7.dtsi
in the ocp component.

Signed-off-by: Jason Kridner <jdk@ti.com>
Signed-off-by: Caleb Robey <c-robey@ti.com>
Cc: Robert Nelson <robertcnelson@gmail.com>

---
 arch/arm/dts/Makefile                |   1 +
 arch/arm/dts/am5729-beagleboneai.dts | 731 +++++++++++++++++++++++++++
 arch/arm/dts/dra7.dtsi               |   2 +-
 3 files changed, 733 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/dts/am5729-beagleboneai.dts

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index d8846df1bd..e1d13f1e3a 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -348,6 +348,7 @@ dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb	\
 dtb-$(CONFIG_TARGET_AM57XX_EVM) += am57xx-beagle-x15.dtb \
 	am57xx-beagle-x15-revb1.dtb \
 	am57xx-beagle-x15-revc.dtb \
+	am5729-beagleboneai.dtb \
 	am574x-idk.dtb \
 	am572x-idk.dtb	\
 	am571x-idk.dtb
diff --git a/arch/arm/dts/am5729-beagleboneai.dts b/arch/arm/dts/am5729-beagleboneai.dts
new file mode 100644
index 0000000000..8dda7dd433
--- /dev/null
+++ b/arch/arm/dts/am5729-beagleboneai.dts
@@ -0,0 +1,731 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2014-2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "dra74x.dtsi"
+#include "am57xx-commercial-grade.dtsi"
+#include "dra74x-mmc-iodelay.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/dra.h>
+
+/ {
+	model = "BeagleBoard.org BeagleBone AI";
+	compatible = "beagleboard.org,am5729-beagleboneai", "ti,am5728",
+		     "ti,dra742", "ti,dra74", "ti,dra7";
+
+	aliases {
+		rtc0 = &tps659038_rtc;
+		rtc1 = &rtc;
+		display0 = &hdmi_conn;
+	};
+
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	memory at 0 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x40000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		ipu2_memory_region: ipu2-memory at 95800000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x95800000 0x0 0x3800000>;
+			reusable;
+			status = "okay";
+		};
+
+		dsp1_memory_region: dsp1-memory at 99000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x99000000 0x0 0x4000000>;
+			reusable;
+			status = "okay";
+		};
+
+		ipu1_memory_region: ipu1-memory at 9d000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x9d000000 0x0 0x2000000>;
+			reusable;
+			status = "okay";
+		};
+
+		dsp2_memory_region: dsp2-memory at 9f000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x9f000000 0x0 0x800000>;
+			reusable;
+			status = "okay";
+		};
+
+	};
+
+	vdd_adc: gpioregulator-vdd_adc {
+		compatible = "regulator-gpio";
+		regulator-name = "vdd_adc";
+		vin-supply = <&vdd_5v>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+		gpios = <&gpio3 27 GPIO_ACTIVE_HIGH>;
+		states = <1800000 0
+			3300000 1>;
+	};
+
+	vdd_5v: fixedregulator-vdd_5v {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vtt_fixed: fixedregulator-vtt {
+		/* TPS51200 */
+		compatible = "regulator-fixed";
+		regulator-name = "vtt_fixed";
+		vin-supply = <&vdd_ddr>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0 {
+			label = "beaglebone:green:usr0";
+			gpios = <&gpio3 17 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			default-state = "off";
+		};
+
+		led1 {
+			label = "beaglebone:green:usr1";
+			gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc0";
+			default-state = "off";
+		};
+
+		led2 {
+			label = "beaglebone:green:usr2";
+			gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "cpu";
+			default-state = "off";
+		};
+
+		led3 {
+			label = "beaglebone:green:usr3";
+			gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc1";
+			default-state = "off";
+		};
+
+		led4 {
+			label = "beaglebone:green:usr4";
+			gpios = <&gpio3 7 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "netdev";
+			default-state = "off";
+		};
+	};
+
+	hdmi_conn: connector at 0 {
+		compatible = "hdmi-connector";
+		label = "hdmi";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_encoder_out>;
+			};
+		};
+	};
+
+	hdmi_enc: encoder at 0 {
+		/* "ti,tpd12s016" software compatible with "ti,tpd12s015"
+		 *  no need for individual driver
+		 */
+		compatible = "ti,tpd12s015";
+		gpios = <0>,
+			<0>,
+			<&gpio7 12 GPIO_ACTIVE_HIGH>;
+
+		ports {
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+
+			port at 0 {
+				reg = <0x0>;
+
+				hdmi_encoder_in: endpoint at 0 {
+					remote-endpoint = <&hdmi_out>;
+				};
+			};
+
+			port at 1 {
+				reg = <0x1>;
+
+				hdmi_encoder_out: endpoint at 0 {
+					remote-endpoint = <&hdmi_connector_in>;
+				};
+			};
+		};
+	};
+
+	emmc_pwrseq: emmc_pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
+	};
+
+	brcmf_pwrseq: brcmf_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>,	/* BT-REG-ON */
+				<&gpio3 18 GPIO_ACTIVE_LOW>;	/* WL-REG-ON */
+	};
+
+	extcon_usb1: extcon_usb1 {
+		compatible = "linux,extcon-usb-gpio";
+		ti,enable-id-detection;
+		id-gpio = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	tps659038: tps659038 at 58 {
+		compatible = "ti,tps659038";
+		reg = <0x58>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+
+		#interrupt-cells = <2>;
+		interrupt-controller;
+
+		ti,system-power-controller;
+		ti,palmas-override-powerhold;
+
+		tps659038_pmic {
+			compatible = "ti,tps659038-pmic";
+
+			smps12-in-supply = <&vdd_5v>;
+			smps3-in-supply = <&vdd_5v>;
+			smps45-in-supply = <&vdd_5v>;
+			smps6-in-supply = <&vdd_5v>;
+			smps7-in-supply = <&vdd_5v>;
+			mps3-in-supply = <&vdd_5v>;
+			smps8-in-supply = <&vdd_5v>;
+			smps9-in-supply = <&vdd_5v>;
+			ldo1-in-supply = <&vdd_5v>;
+			ldo2-in-supply = <&vdd_5v>;
+			ldo3-in-supply = <&vdd_5v>;
+			ldo4-in-supply = <&vdd_5v>;
+			ldo9-in-supply = <&vdd_5v>;
+			ldoln-in-supply = <&vdd_5v>;
+			ldousb-in-supply = <&vdd_5v>;
+			ldortc-in-supply = <&vdd_5v>;
+
+			regulators {
+				vdd_mpu: smps12 {
+					/* VDD_MPU */
+					regulator-name = "smps12";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_ddr: smps3 {
+					/* VDD_DDR EMIF1 EMIF2 */
+					regulator-name = "smps3";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_dspeve: smps45 {
+					/* VDD_DSPEVE on AM572 */
+					regulator-name = "smps45";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_gpu: smps6 {
+					/* VDD_GPU */
+					regulator-name = "smps6";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_core: smps7 {
+					/* VDD_CORE */
+					regulator-name = "smps7";
+					regulator-min-microvolt = < 850000>;	/*** 1.15V */
+					regulator-max-microvolt = <1150000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_iva: smps8 {
+					/* VDD_IVAHD */				/*** 1.06V */
+					regulator-name = "smps8";
+				};
+
+				vdd_3v3: smps9 {
+					/* VDD_3V3 */
+					regulator-name = "smps9";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_sd: ldo1 {
+					/* VDDSHV8 - VSDMMC  */
+					regulator-name = "ldo1";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+					regulator-always-on;
+				};
+
+				vdd_1v8: ldo2 {
+					/* VDDSH18V */
+					regulator-name = "ldo2";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_1v8_phy_ldo3: ldo3 {
+					/* R1.3a 572x V1_8PHY_LDO3: USB, SATA */
+					regulator-name = "ldo3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_1v8_phy_ldo4: ldo4 {
+					/* R1.3a 572x V1_8PHY_LDO4: PCIE, HDMI*/
+					regulator-name = "ldo4";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				/* LDO5-8 unused */
+
+				vdd_rtc: ldo9 {
+					/* VDD_RTC  */
+					regulator-name = "ldo9";
+					regulator-min-microvolt = < 840000>;
+					regulator-max-microvolt = <1160000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_1v8_pll: ldoln {
+					/* VDDA_1V8_PLL */
+					regulator-name = "ldoln";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldousb_reg: ldousb {
+					/* VDDA_3V_USB: VDDA_USBHS33 */
+					regulator-name = "ldousb";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldortc_reg: ldortc {
+					/* VDDA_RTC  */
+					regulator-name = "ldortc";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				regen1: regen1 {
+					/* VDD_3V3_ON */
+					regulator-name = "regen1";
+					regulator-boot-on;
+					regulator-always-on;
+				};
+
+				regen2: regen2 {
+					/* Needed for PMIC internal resource */
+					regulator-name = "regen2";
+					regulator-boot-on;
+					regulator-always-on;
+				};
+			};
+		};
+
+		tps659038_rtc: tps659038_rtc {
+			compatible = "ti,palmas-rtc";
+			interrupt-parent = <&tps659038>;
+			interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+			wakeup-source;
+		};
+
+		tps659038_pwr_button: tps659038_pwr_button {
+			compatible = "ti,palmas-pwrbutton";
+			interrupt-parent = <&tps659038>;
+			interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+			wakeup-source;
+			ti,palmas-long-press-seconds = <12>;
+		};
+
+		tps659038_gpio: tps659038_gpio {
+			compatible = "ti,palmas-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+	};
+
+	/* STMPE811 touch screen controller */
+	stmpe811 at 41 {
+		compatible = "st,stmpe811";
+		reg = <0x41>;
+		interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio2>;
+		interrupt-controller;
+		id = <0>;
+		blocks = <0x5>;
+		irq-trigger = <0x1>;
+		st,mod-12b = <1>; /* 12-bit ADC */
+		st,ref-sel = <0>; /* internal ADC reference */
+		st,adc-freq = <1>; /* 3.25 MHz ADC clock speed */
+		st,sample-time = <4>; /* ADC converstion time: 80 clocks */
+
+		stmpe_adc {
+			compatible = "st,stmpe-adc";
+			st,norequest-mask = <0x00>; /* mask any channels to be used by touchscreen */
+			adc0: iio-device at 0 {
+				#io-channel-cells = <1>;
+				iio-channels = <&adc0 4>, <&adc0 1>, <&adc0 2>, <&adc0 3>, <&adc0 4>, <&adc0 5>, <&adc0 6>;
+				iio-channel-names = "AIN0_P9_39", "AIN1_P9_40", "AIN2_P9_37", "AIN3_P9_38",
+					"AIN4_P9_33", "AIN5_P9_36", "AIN6_P9_35";
+			};
+		};
+
+		stmpe_touchscreen {
+			status = "disabled";
+			compatible = "st,stmpe-ts";
+			/* 8 sample average control */
+			st,ave-ctrl = <3>;
+			/* 7 length fractional part in z */
+			st,fraction-z = <7>;
+			/*
+			 * 50 mA typical 80 mA max touchscreen drivers
+			 * current limit value
+			 */
+			st,i-drive = <1>;
+			/* 1 ms panel driver settling time */
+			st,settling = <3>;
+			/* 5 ms touch detect interrupt delay */
+			st,touch-det-delay = <5>;
+		};
+
+		stmpe_gpio {
+			compatible = "st,stmpe-gpio";
+		};
+
+		stmpe_pwm {
+			compatible = "st,stmpe-pwm";
+			#pwm-cells = <2>;
+		};
+	};
+};
+
+&mcspi3 {
+	status = "okay";
+	ti,pindir-d0-out-d1-in;
+
+	sn65hvs882: sn65hvs882 at 0 {
+		compatible = "pisosr-gpio";
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+		spi-cpol;
+	};
+};
+
+&cpu0 {
+	vdd-supply = <&vdd_mpu>;
+	voltage-tolerance = <1>;
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&davinci_mdio {
+	reset-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
+	reset-delay-us = <2>;
+
+	phy0: ethernet-phy at 1 {
+		reg = <4>;
+		eee-broken-100tx;
+		eee-broken-1000t;
+	};
+};
+
+&mac {
+	slaves = <1>;
+	status = "okay";
+};
+
+&cpsw_emac0 {
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii";
+};
+
+&ocp {
+	pruss1_shmem: pruss_shmem at 4b200000 {
+		status = "okay";
+		compatible = "ti,pruss-shmem";
+		reg = <0x4b200000 0x020000>;
+	};
+
+	pruss2_shmem: pruss_shmem at 4b280000 {
+		status = "okay";
+		compatible = "ti,pruss-shmem";
+		reg = <0x4b280000 0x020000>;
+	};
+};
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vdd_3v3>;
+	vqmmc-supply = <&vdd_sd>;
+	bus-width = <4>;
+	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins_default>;
+};
+
+&mmc2 {
+	status = "okay";
+	vmmc-supply = <&vdd_1v8>;
+	vqmmc-supply = <&vdd_1v8>;
+	bus-width = <8>;
+	ti,non-removable;
+	non-removable;
+	mmc-pwrseq = <&emmc_pwrseq>;
+
+	ti,needs-special-reset;
+	dmas = <&sdma_xbar 47>, <&sdma_xbar 48>;
+	dma-names = "tx", "rx";
+
+};
+
+&mmc4 {
+	/* DS: Default speed (DS) up to 25 MHz, including 1- and 4-bit modes (3.3 V signaling). */
+	/* HS: High speed up to 50 MHz (3.3 V signaling). */
+	/* SDR12: SDR up to 25 MHz (1.8 V signaling). */
+	/* SDR25: SDR up to 50 MHz (1.8 V signaling). */
+	/* SDR50: SDR up to 100 MHz (1.8 V signaling). */
+	/* SDR104: SDR up to 208 MHz (1.8 V signaling) */
+	/* DDR50: DDR up to 50 MHz (1.8 V signaling). */
+	status = "okay";
+
+	ti,needs-special-reset;
+	vmmc-supply = <&vdd_3v3>;
+	cap-power-off-card;
+	keep-power-in-suspend;
+	bus-width = <4>;
+	ti,non-removable;
+	non-removable;
+	no-1-8-v;
+	max-frequency = <24000000>;
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	mmc-pwrseq = <&brcmf_pwrseq>;
+
+	brcmf: wifi at 1 {
+		status = "okay";
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+
+		brcm,sd-head-align = <4>;
+		brcm,sd_head_align = <4>;
+		brcm,sd_sgentry_align = <512>;
+
+		interrupt-parent = <&gpio3>;
+		interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "host-wake";
+	};
+};
+
+&usb2_phy1 {
+	phy-supply = <&ldousb_reg>;
+};
+
+&usb2_phy2 {
+	phy-supply = <&ldousb_reg>;
+};
+
+&usb1 {
+	status = "okay";
+	dr_mode = "otg";
+};
+
+&omap_dwc3_1 {
+	extcon = <&extcon_usb1>;
+};
+
+&usb2 {
+	status = "okay";
+	dr_mode = "host";
+};
+
+&dss {
+	status = "okay";
+	vdda_video-supply = <&vdd_1v8_pll>;
+};
+
+&hdmi {
+	status = "okay";
+	vdda-supply = <&vdd_1v8_phy_ldo4>;
+
+	port {
+		hdmi_out: endpoint {
+			remote-endpoint = <&hdmi_encoder_in>;
+		};
+	};
+};
+
+&bandgap {
+	status = "okay";
+};
+
+&mailbox1 {
+	status = "okay";
+};
+
+&mailbox2 {
+	status = "okay";
+};
+
+&mailbox3 {
+	status = "okay";
+};
+
+&mailbox4 {
+	status = "okay";
+};
+
+&mailbox5 {
+	status = "okay";
+};
+
+&mailbox6 {
+	status = "okay";
+};
+
+&mailbox7 {
+	status = "okay";
+};
+
+&mailbox8 {
+	status = "okay";
+};
+
+&mailbox9 {
+	status = "okay";
+};
+
+&mailbox10 {
+	status = "okay";
+};
+
+&mailbox11 {
+	status = "okay";
+};
+
+&mailbox12 {
+	status = "okay";
+};
+
+&mailbox13 {
+	status = "okay";
+};
+
+&cpu_alert0 {
+	temperature = <55000>; /* milliCelsius */
+};
+
+&cpu_crit {
+	temperature = <85000>; /* milliCelsius */
+};
+
+&gpu_crit {
+	temperature = <85000>; /* milliCelsius */
+};
+
+&core_crit {
+	temperature = <85000>; /* milliCelsius */
+};
+
+&dspeve_crit {
+	temperature = <85000>; /* milliCelsius */
+};
+
+&iva_crit {
+	temperature = <85000>; /* milliCelsius */
+};
+
+&sata {
+	status = "disabled";
+};
+
+&sata_phy {
+	status = "disabled";
+};
+
+/* bluetooth */
+&uart6 {
+	status = "okay";
+};
+
+/* cape header stuff */
+&i2c4 {
+	status = "okay";
+	clock-frequency = <100000>;
+};
+
+&cpu0_opp_table {
+	opp_slow-500000000 {
+		opp-shared;
+	};
+};
diff --git a/arch/arm/dts/dra7.dtsi b/arch/arm/dts/dra7.dtsi
index fd1aea0b1b..dda6951539 100644
--- a/arch/arm/dts/dra7.dtsi
+++ b/arch/arm/dts/dra7.dtsi
@@ -132,7 +132,7 @@
 	 * the moment, just use a fake OCP bus entry to represent the whole bus
 	 * hierarchy.
 	 */
-	ocp {
+	ocp: ocp {
 		compatible = "ti,dra7-l3-noc", "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
-- 
2.17.1