# Boot interfaces overview

The DT nodes provide access to the boot interfaces and properties. The
DT provides a data structure that describes the system’s hardware
information. The image execution environment, which includes firmware
such as XBL and UEFI, reads this information. You can modify the DT
properties associated with boot to customize the functionality of
various device software features.

For information about modifying the interfaces using the QDTE tool and
changing the DT properties in the prebuilt devicetree blob (DTB) using
the QDTE tool, see [Configure QDTE](https://docs.qualcomm.com/doc/80-70030-4/topic/configure-qdte.html).

For more information about DT, see [https://github.com/devicetree-org](https://github.com/devicetree-org).

> 
> 
> [Platform-info](https://docs.qualcomm.com/doc/80-70030-4/topic/platform.html#platform-info)
> 
> 
> The platform information devicetree provides the information about CDT, which contains platform information version, platform type, major hardware version, minor hardware version, subtype and OEM variant ID.
> 
> 
> [Boot devicetree](https://docs.qualcomm.com/doc/80-70030-4/topic/boot-developer-touchpoints.html#boot-developer-touchpoints)
> 
> 
> The boot devicetree properties provide information on how to enable
> and disable user-initiated emergency download (EDL) in XBL.
> 
> 
> [Power management integrated circuit PMIC](https://docs.qualcomm.com/doc/80-70030-4/topic/pmic-developer-touchpoints.html#pmic-developer-touchpoints)
> 
> 
> The power management integrated circuit (PMIC) is a specialized
> electronic component that manages various power supply requirements
> within a device.
> 
> 
> [General-purpose input/output (GPIO) functions](https://docs.qualcomm.com/doc/80-70030-4/topic/tlmm-developer-touchpoints.html#tlmm-developer-touchpoints)
> 
> 
> The hardware controls the multiplexing of general-purpose
> input/output (GPIO) and alternate functions through the top-level
> mode multiplexer (TLMM). You can configure the GPIOs during the boot
> process using the DT properties for TLMM.
> 
> 
> [Buses](https://docs.qualcomm.com/doc/80-70030-4/topic/buses.html#buses)
> 
> 
> A bus facilitates data transfer among various system components. The
> DT properties allow for the configuration of the Qualcomm Universal
> Peripheral (QUP) v3 serial interface device nodes.
> 
> 
> [USB devicetree properties](https://docs.qualcomm.com/doc/80-70030-4/topic/usb-developer-touchpoints.html#usb-developer-touchpoints)
> 
> 
> The DT properties for USB allow you to adjust the USB signal quality.
> 
> 
> [Storage](https://docs.qualcomm.com/doc/80-70030-4/topic/storage-developer-touchpoints.html#storage-developer-touchpoints)
> 
> 
> To configure DT properties for storage, see [UEFI devicetree](https://docs.qualcomm.com/doc/80-70030-6/topic/configuration.html#boot-loader-and-uefi-device-tree).

Last Published: Jul 20, 2026

[Previous Topic
Generate the capsule](https://docs.qualcomm.com/bundle/publicresource/80-70030-4/topics/capsule-generation-in-uefi.md) [Next Topic
Platform-info](https://docs.qualcomm.com/bundle/publicresource/80-70030-4/topics/platform.md)