arm64: tegra: Add NVIDIA Jetson Nano Developer Kit support
authorThierry Reding <treding@nvidia.com>
Fri, 18 Jan 2019 12:27:44 +0000 (13:27 +0100)
committerThierry Reding <treding@nvidia.com>
Wed, 17 Apr 2019 14:25:18 +0000 (16:25 +0200)
The Jetson Nano Developer Kit is a Tegra X1 based development board. It
is similar to Jetson TX1 but it is not pin compatible. It features 4 GB
of LPDDR4, an SPI NOR flash for early boot firmware and an SD card slot
used for storage.

HDMI 2.0 or DP 1.2 are available for display, four USB ports (3 USB 2.0
and 1 USB 3.0) can be used to attach a variety of peripherals and a PCI
Ethernet controller provides onboard network connectivity. An M.2 Key-E
slot with PCIe x1 adds additional possibilities.

A 40-pin header on the board can be used to extend the capabilities and
exposed interfaces of the Jetson Nano.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
arch/arm64/boot/dts/nvidia/Makefile
arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts [new file with mode: 0644]

index 6b8ab55..bcd018c 100644 (file)
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-2180.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2571.dtb
+dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p3450-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2894-0050-a08.dtb
 dtb-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186-p2771-0000.dtb
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
new file mode 100644 (file)
index 0000000..5d01819
--- /dev/null
@@ -0,0 +1,650 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include <dt-bindings/input/gpio-keys.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/mfd/max77620.h>
+
+#include "tegra210.dtsi"
+
+/ {
+       model = "NVIDIA Jetson Nano Developer Kit";
+       compatible = "nvidia,p3450-0000", "nvidia,tegra210";
+
+       aliases {
+               ethernet = "/pcie@1003000/pci@2,0/ethernet@0,0";
+               rtc0 = "/i2c@7000d000/pmic@3c";
+               rtc1 = "/rtc@7000e000";
+               serial0 = &uarta;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x0 0x80000000 0x1 0x0>;
+       };
+
+       pcie@1003000 {
+               status = "okay";
+
+               avdd-pll-uerefe-supply = <&vdd_pex_1v05>;
+               hvddio-pex-supply = <&vdd_1v8>;
+               dvddio-pex-supply = <&vdd_pex_1v05>;
+               dvdd-pex-pll-supply = <&vdd_pex_1v05>;
+               hvdd-pex-pll-e-supply = <&vdd_1v8>;
+               vddio-pex-ctl-supply = <&vdd_1v8>;
+
+               pci@1,0 {
+                       phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-1}>,
+                              <&{/padctl@7009f000/pads/pcie/lanes/pcie-2}>,
+                              <&{/padctl@7009f000/pads/pcie/lanes/pcie-3}>,
+                              <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;
+                       phy-names = "pcie-0", "pcie-1", "pcie-2", "pcie-3";
+                       nvidia,num-lanes = <4>;
+                       status = "okay";
+               };
+
+               pci@2,0 {
+                       phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-0}>;
+                       phy-names = "pcie-0";
+                       status = "okay";
+
+                       ethernet@0,0 {
+                               reg = <0x000000 0 0 0 0>;
+                               local-mac-address = [ 00 00 00 00 00 00 ];
+                       };
+               };
+       };
+
+       host1x@50000000 {
+               dpaux@54040000 {
+                       status = "okay";
+               };
+
+               sor@54580000 {
+                       status = "okay";
+
+                       avdd-io-supply = <&avdd_1v05>;
+                       vdd-pll-supply = <&vdd_1v8>;
+                       hdmi-supply = <&vdd_hdmi>;
+
+                       nvidia,ddc-i2c-bus = <&hdmi_ddc>;
+                       nvidia,hpd-gpio = <&gpio TEGRA_GPIO(CC, 1)
+                                          GPIO_ACTIVE_LOW>;
+                       nvidia,xbar-cfg = <0 1 2 3 4>;
+               };
+       };
+
+       gpu@57000000 {
+               vdd-supply = <&vdd_gpu>;
+               status = "okay";
+       };
+
+       /* debug port */
+       serial@70006000 {
+               status = "okay";
+       };
+
+       hdmi_ddc: i2c@7000c700 {
+               status = "okay";
+               clock-frequency = <100000>;
+       };
+
+       i2c@7000d000 {
+               status = "okay";
+               clock-frequency = <400000>;
+
+               pmic: pmic@3c {
+                       compatible = "maxim,max77620";
+                       reg = <0x3c>;
+                       interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+
+                       #interrupt-cells = <2>;
+                       interrupt-controller;
+
+                       #gpio-cells = <2>;
+                       gpio-controller;
+
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&max77620_default>;
+
+                       max77620_default: pinmux {
+                               gpio0 {
+                                       pins = "gpio0";
+                                       function = "gpio";
+                               };
+
+                               gpio1 {
+                                       pins = "gpio1";
+                                       function = "fps-out";
+                                       drive-push-pull = <1>;
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
+                                       maxim,active-fps-power-up-slot = <0>;
+                                       maxim,active-fps-power-down-slot = <7>;
+                               };
+
+                               gpio2 {
+                                       pins = "gpio2";
+                                       function = "fps-out";
+                                       drive-open-drain = <1>;
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_0>;
+                                       maxim,active-fps-power-up-slot = <0>;
+                                       maxim,active-fps-power-down-slot = <7>;
+                               };
+
+                               gpio3 {
+                                       pins = "gpio3";
+                                       function = "fps-out";
+                                       drive-open-drain = <1>;
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_0>;
+                                       maxim,active-fps-power-up-slot = <4>;
+                                       maxim,active-fps-power-down-slot = <3>;
+                               };
+
+                               gpio4 {
+                                       pins = "gpio4";
+                                       function = "32k-out1";
+                               };
+
+                               gpio5_6_7 {
+                                       pins = "gpio5", "gpio6", "gpio7";
+                                       function = "gpio";
+                                       drive-push-pull = <1>;
+                               };
+                       };
+
+                       fps {
+                               fps0 {
+                                       maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN0>;
+                                       maxim,suspend-fps-time-period-us = <5120>;
+                               };
+
+                               fps1 {
+                                       maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN1>;
+                                       maxim,suspend-fps-time-period-us = <5120>;
+                               };
+
+                               fps2 {
+                                       maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN0>;
+                               };
+                       };
+
+                       regulators {
+                               in-ldo0-1-supply = <&vdd_pre>;
+                               in-ldo2-supply = <&vdd_3v3_sys>;
+                               in-ldo3-5-supply = <&vdd_1v8>;
+                               in-ldo4-6-supply = <&vdd_5v0_sys>;
+                               in-ldo7-8-supply = <&vdd_pre>;
+                               in-sd0-supply = <&vdd_5v0_sys>;
+                               in-sd1-supply = <&vdd_5v0_sys>;
+                               in-sd2-supply = <&vdd_5v0_sys>;
+                               in-sd3-supply = <&vdd_5v0_sys>;
+
+                               vdd_soc: sd0 {
+                                       regulator-name = "VDD_SOC";
+                                       regulator-min-microvolt = <1000000>;
+                                       regulator-max-microvolt = <1170000>;
+                                       regulator-enable-ramp-delay = <146>;
+                                       regulator-disable-ramp-delay = <4080>;
+                                       regulator-ramp-delay = <27500>;
+                                       regulator-ramp-delay-scale = <300>;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_1>;
+                                       maxim,active-fps-power-up-slot = <1>;
+                                       maxim,active-fps-power-down-slot = <6>;
+                               };
+
+                               vdd_ddr: sd1 {
+                                       regulator-name = "VDD_DDR_1V1_PMIC";
+                                       regulator-min-microvolt = <1150000>;
+                                       regulator-max-microvolt = <1150000>;
+                                       regulator-enable-ramp-delay = <176>;
+                                       regulator-disable-ramp-delay = <145800>;
+                                       regulator-ramp-delay = <27500>;
+                                       regulator-ramp-delay-scale = <300>;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_0>;
+                                       maxim,active-fps-power-up-slot = <5>;
+                                       maxim,active-fps-power-down-slot = <2>;
+                               };
+
+                               vdd_pre: sd2 {
+                                       regulator-name = "VDD_PRE_REG_1V35";
+                                       regulator-min-microvolt = <1350000>;
+                                       regulator-max-microvolt = <1350000>;
+                                       regulator-enable-ramp-delay = <176>;
+                                       regulator-disable-ramp-delay = <32000>;
+                                       regulator-ramp-delay = <27500>;
+                                       regulator-ramp-delay-scale = <350>;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_1>;
+                                       maxim,active-fps-power-up-slot = <2>;
+                                       maxim,active-fps-power-down-slot = <5>;
+                               };
+
+                               vdd_1v8: sd3 {
+                                       regulator-name = "VDD_1V8";
+                                       regulator-min-microvolt = <1800000>;
+                                       regulator-max-microvolt = <1800000>;
+                                       regulator-enable-ramp-delay = <242>;
+                                       regulator-disable-ramp-delay = <118000>;
+                                       regulator-ramp-delay = <27500>;
+                                       regulator-ramp-delay-scale = <360>;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_0>;
+                                       maxim,active-fps-power-up-slot = <3>;
+                                       maxim,active-fps-power-down-slot = <4>;
+                               };
+
+                               vdd_sys_1v2: ldo0 {
+                                       regulator-name = "AVDD_SYS_1V2";
+                                       regulator-min-microvolt = <1200000>;
+                                       regulator-max-microvolt = <1200000>;
+                                       regulator-enable-ramp-delay = <26>;
+                                       regulator-disable-ramp-delay = <626>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
+                                       maxim,active-fps-power-up-slot = <0>;
+                                       maxim,active-fps-power-down-slot = <7>;
+                               };
+
+                               vdd_pex_1v05: ldo1 {
+                                       regulator-name = "VDD_PEX_1V05";
+                                       regulator-min-microvolt = <1050000>;
+                                       regulator-max-microvolt = <1050000>;
+                                       regulator-enable-ramp-delay = <22>;
+                                       regulator-disable-ramp-delay = <650>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
+                                       maxim,active-fps-power-up-slot = <0>;
+                                       maxim,active-fps-power-down-slot = <7>;
+                               };
+
+                               vddio_sdmmc: ldo2 {
+                                       regulator-name = "VDDIO_SDMMC";
+                                       regulator-min-microvolt = <1800000>;
+                                       regulator-max-microvolt = <3300000>;
+                                       regulator-enable-ramp-delay = <62>;
+                                       regulator-disable-ramp-delay = <650>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_NONE>;
+                                       maxim,active-fps-power-up-slot = <0>;
+                                       maxim,active-fps-power-down-slot = <7>;
+                               };
+
+                               ldo3 {
+                                       status = "disabled";
+                               };
+
+                               vdd_rtc: ldo4 {
+                                       regulator-name = "VDD_RTC";
+                                       regulator-min-microvolt = <850000>;
+                                       regulator-max-microvolt = <1100000>;
+                                       regulator-enable-ramp-delay = <22>;
+                                       regulator-disable-ramp-delay = <610>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+                                       regulator-disable-active-discharge;
+                                       regulator-always-on;
+                                       regulator-boot-on;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_0>;
+                                       maxim,active-fps-power-up-slot = <1>;
+                                       maxim,active-fps-power-down-slot = <6>;
+                               };
+
+                               ldo5 {
+                                       status = "disabled";
+                               };
+
+                               ldo6 {
+                                       status = "disabled";
+                               };
+
+                               avdd_1v05_pll: ldo7 {
+                                       regulator-name = "AVDD_1V05_PLL";
+                                       regulator-min-microvolt = <1050000>;
+                                       regulator-max-microvolt = <1050000>;
+                                       regulator-enable-ramp-delay = <24>;
+                                       regulator-disable-ramp-delay = <2768>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_1>;
+                                       maxim,active-fps-power-up-slot = <3>;
+                                       maxim,active-fps-power-down-slot = <4>;
+                               };
+
+                               avdd_1v05: ldo8 {
+                                       regulator-name = "AVDD_SATA_HDMI_DP_1V05";
+                                       regulator-min-microvolt = <1050000>;
+                                       regulator-max-microvolt = <1050000>;
+                                       regulator-enable-ramp-delay = <22>;
+                                       regulator-disable-ramp-delay = <1160>;
+                                       regulator-ramp-delay = <100000>;
+                                       regulator-ramp-delay-scale = <200>;
+
+                                       maxim,active-fps-source = <MAX77620_FPS_SRC_1>;
+                                       maxim,active-fps-power-up-slot = <6>;
+                                       maxim,active-fps-power-down-slot = <1>;
+                               };
+                       };
+               };
+       };
+
+       pmc@7000e400 {
+               nvidia,invert-interrupt;
+       };
+
+       hda@70030000 {
+               nvidia,model = "jetson-nano-hda";
+
+               status = "okay";
+       };
+
+       usb@70090000 {
+               phys = <&{/padctl@7009f000/pads/usb2/lanes/usb2-0}>,
+                      <&{/padctl@7009f000/pads/usb2/lanes/usb2-1}>,
+                      <&{/padctl@7009f000/pads/usb2/lanes/usb2-2}>,
+                      <&{/padctl@7009f000/pads/pcie/lanes/pcie-6}>;
+               phy-names = "usb2-0", "usb2-1", "usb2-2", "usb3-0";
+
+               avdd-usb-supply = <&vdd_3v3_sys>;
+               dvddio-pex-supply = <&vdd_pex_1v05>;
+               hvddio-pex-supply = <&vdd_1v8>;
+               /* these really belong to the XUSB pad controller */
+               avdd-pll-utmip-supply = <&vdd_1v8>;
+               avdd-pll-uerefe-supply = <&vdd_pex_1v05>;
+               dvdd-usb-ss-pll-supply = <&vdd_pex_1v05>;
+               hvdd-usb-ss-pll-e-supply = <&vdd_1v8>;
+
+               status = "okay";
+       };
+
+       padctl@7009f000 {
+               status = "okay";
+
+               avdd-pll-utmip-supply = <&vdd_1v8>;
+               avdd-pll-uerefe-supply = <&vdd_pex_1v05>;
+               dvdd-pex-pll-supply = <&vdd_pex_1v05>;
+               hvdd-pex-pll-e-supply = <&vdd_1v8>;
+
+               pads {
+                       usb2 {
+                               status = "okay";
+
+                               lanes {
+                                       usb2-0 {
+                                               nvidia,function = "xusb";
+                                               status = "okay";
+                                       };
+
+                                       usb2-1 {
+                                               nvidia,function = "xusb";
+                                               status = "okay";
+                                       };
+
+                                       usb2-2 {
+                                               nvidia,function = "xusb";
+                                               status = "okay";
+                                       };
+                               };
+                       };
+
+                       pcie {
+                               status = "okay";
+
+                               lanes {
+                                       pcie-0 {
+                                               nvidia,function = "pcie-x1";
+                                               status = "okay";
+                                       };
+
+                                       pcie-1 {
+                                               nvidia,function = "pcie-x4";
+                                               status = "okay";
+                                       };
+
+                                       pcie-2 {
+                                               nvidia,function = "pcie-x4";
+                                               status = "okay";
+                                       };
+
+                                       pcie-3 {
+                                               nvidia,function = "pcie-x4";
+                                               status = "okay";
+                                       };
+
+                                       pcie-4 {
+                                               nvidia,function = "pcie-x4";
+                                               status = "okay";
+                                       };
+
+                                       pcie-5 {
+                                               nvidia,function = "usb3-ss";
+                                               status = "okay";
+                                       };
+
+                                       pcie-6 {
+                                               nvidia,function = "usb3-ss";
+                                               status = "okay";
+                                       };
+                               };
+                       };
+               };
+
+               ports {
+                       usb2-0 {
+                               status = "okay";
+                               mode = "otg";
+                       };
+
+                       usb2-1 {
+                               status = "okay";
+                               mode = "host";
+                       };
+
+                       usb2-2 {
+                               status = "okay";
+                               mode = "host";
+                       };
+
+                       usb3-0 {
+                               status = "okay";
+                               nvidia,usb2-companion = <1>;
+                               vbus-supply = <&vdd_hub_3v3>;
+                       };
+               };
+       };
+
+       sdhci@700b0000 {
+               status = "okay";
+               bus-width = <4>;
+
+               cd-gpios = <&gpio TEGRA_GPIO(Z, 1) GPIO_ACTIVE_LOW>;
+
+               vqmmc-supply = <&vddio_sdmmc>;
+               vmmc-supply = <&vdd_3v3_sd>;
+       };
+
+       clocks {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               clk32k_in: clock@0 {
+                       compatible = "fixed-clock";
+                       reg = <0>;
+                       #clock-cells = <0>;
+                       clock-frequency = <32768>;
+               };
+       };
+
+       cpus {
+               cpu@0 {
+                       enable-method = "psci";
+               };
+
+               cpu@1 {
+                       enable-method = "psci";
+               };
+
+               cpu@2 {
+                       enable-method = "psci";
+               };
+
+               cpu@3 {
+                       enable-method = "psci";
+               };
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               power {
+                       label = "Power";
+                       gpios = <&gpio TEGRA_GPIO(X, 5) GPIO_ACTIVE_LOW>;
+                       linux,input-type = <EV_KEY>;
+                       linux,code = <KEY_POWER>;
+                       debounce-interval = <30>;
+                       wakeup-event-action = <EV_ACT_ASSERTED>;
+                       wakeup-source;
+               };
+
+               force-recovery {
+                       label = "Force Recovery";
+                       gpios = <&gpio TEGRA_GPIO(X, 6) GPIO_ACTIVE_LOW>;
+                       linux,input-type = <EV_KEY>;
+                       linux,code = <BTN_1>;
+                       debounce-interval = <30>;
+               };
+       };
+
+       psci {
+               compatible = "arm,psci-1.0";
+               method = "smc";
+       };
+
+       regulators {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               vdd_5v0_sys: regulator@0 {
+                       compatible = "regulator-fixed";
+                       reg = <0>;
+
+                       regulator-name = "VDD_5V0_SYS";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+               };
+
+               vdd_3v3_sys: regulator@1 {
+                       compatible = "regulator-fixed";
+                       reg = <1>;
+                       regulator-name = "VDD_3V3_SYS";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       regulator-enable-ramp-delay = <240>;
+                       regulator-disable-ramp-delay = <11340>;
+                       regulator-always-on;
+                       regulator-boot-on;
+
+                       gpio = <&pmic 3 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+
+                       vin-supply = <&vdd_5v0_sys>;
+               };
+
+               vdd_3v3_sd: regulator@2 {
+                       compatible = "regulator-fixed";
+                       reg = <2>;
+
+                       regulator-name = "VDD_3V3_SD";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+
+                       gpio = <&gpio TEGRA_GPIO(Z, 3) GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+
+                       vin-supply = <&vdd_3v3_sys>;
+               };
+
+               vdd_hdmi: regulator@3 {
+                       compatible = "regulator-fixed";
+                       reg = <3>;
+
+                       regulator-name = "VDD_HDMI_5V0";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+
+                       vin-supply = <&vdd_5v0_sys>;
+               };
+
+               vdd_hub_3v3: regulator@4 {
+                       compatible = "regulator-fixed";
+                       reg = <4>;
+
+                       regulator-name = "VDD_HUB_3V3";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+
+                       gpio = <&gpio TEGRA_GPIO(A, 6) GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+
+                       vin-supply = <&vdd_5v0_sys>;
+               };
+
+               vdd_cpu: regulator@5 {
+                       compatible = "regulator-fixed";
+                       reg = <5>;
+
+                       regulator-name = "VDD_CPU";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+                       regulator-boot-on;
+
+                       gpio = <&pmic 5 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+
+                       vin-supply = <&vdd_5v0_sys>;
+               };
+
+               vdd_gpu: regulator@6 {
+                       compatible = "regulator-fixed";
+                       reg = <6>;
+
+                       regulator-name = "VDD_GPU";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-enable-ramp-delay = <250>;
+
+                       gpio = <&pmic 6 GPIO_ACTIVE_HIGH>;
+                       enable-active-high;
+
+                       vin-supply = <&vdd_5v0_sys>;
+               };
+       };
+};