Device Tree

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AMP

Asymmetric Multiprocessing

DMA

Direct Memory Access

DTB

Device tree Blob

DTC

Device Tree Compiler

DTS

Device Tree Syntax

SoC

System on Chip

Slides¹

• The Device Tree should describe the board’s hardware
• is a data structure describing the hardware components of a particular computer so that the operating system’s kernel can use and manage those components, including the CPU or CPUs, the memory, the buses and the peripherals.
• A device tree can hold any kind of data as internally it is a tree of named nodes and properties
• Can have multiple compatibility drivers for a device
• .dtsi <- files for included files, generally containing SoC-level definitions (the i in dtsi stands for Include)

Footnotes