文件名称：devicetree-specification-v0.1
文件大小：306KB
文件格式：PDF
更新时间：2020-12-27 05:25:40
devicetree dtb dts
linux设备书规范 To initialize and boot a computer system, various software components interact. Firmware might perform low- level initialization of the system hardware before passing control to software such as an operating system, boot- loader, or hypervisor. Bootloaders and hypervisors can, in turn, load and transfer control to operating systems. Standard, consistent interfaces and conventions facilitate the interactions between these software components. In this document the term boot program is used to generically refer to a software component that initializes the sys- tem state and executes another software component referred to as a client program. Examples of a boot programs include: firmware, bootloaders, and hypervisors. Examples of a client program include: bootloaders, hypervisors, operating systems, and special purpose programs. A piece of software may be both a client program and a boot program (e.g. a hypervisor). This specification, the Devicetree Specification (DTSpec), provides a complete boot program to client program interface definition, combined with minimum system requirements that facilitate the development of a wide variety of systems.