--- /dev/null
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2019 Amarula Solutions B.V.
+ */
+
+/dts-v1/;
+
+#include "rk3399-nanopi4.dtsi"
+
+/ {
+ model = "FriendlyARM NanoPi NEO4";
+ compatible = "friendlyarm,nanopi-neo4", "rockchip,rk3399";
+
+ vdd_5v: vdd-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_5v";
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vcc5v0_core: vcc5v0-core {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_core";
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vdd_5v>;
+ };
+
+ vcc5v0_usb1: vcc5v0-usb1 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_usb1";
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc5v0_sys>;
+ };
+};
+
+&vcc3v3_sys {
+ vin-supply = <&vcc5v0_core>;
+};
+
+&u2phy0_host {
+ phy-supply = <&vcc5v0_usb1>;
+};
+
+&vbus_typec {
+ regulator-always-on;
+ vin-supply = <&vdd_5v>;
+};
--- /dev/null
+CONFIG_ARM=y
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_SYS_TEXT_BASE=0x00200000
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_ROCKCHIP_RK3399=y
+CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x50000
+CONFIG_DEBUG_UART_BASE=0xFF1A0000
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_SPL_STACK_R_ADDR=0x80000
+CONFIG_DEBUG_UART=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-nanopi-neo4.dtb"
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x10000
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_TIME=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="rk3399-nanopi-neo4"
+CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
+CONFIG_TPL=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ROCKCHIP=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_GMAC_ROCKCHIP=y
+CONFIG_PMIC_RK8XX=y
+CONFIG_REGULATOR_PWM=y
+CONFIG_REGULATOR_RK8XX=y
+CONFIG_PWM_ROCKCHIP=y
+CONFIG_BAUDRATE=1500000
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYSRESET=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_ETHER_ASIX=y
+CONFIG_USB_ETHER_ASIX88179=y
+CONFIG_USB_ETHER_MCS7830=y
+CONFIG_USB_ETHER_RTL8152=y
+CONFIG_USB_ETHER_SMSC95XX=y
+CONFIG_USE_TINY_PRINTF=y
+CONFIG_SPL_TINY_MEMSET=y
+CONFIG_ERRNO_STR=y