通用型引导装载程序中闪存驱动的设计

Design of Flash Driver for Universal Bootloader

在分析了通用型引导装载程序中常见闪存设备的特点和读写方法的基础上,根据Linux中内存技术设备的组织结构及层次关系,基于分层的设计思想,该文提出了一种适合于通用型引导装载程序、能满足不同闪存设备的驱动设计方案。对方案中驱动的分层、各层的内容及相互关系、主要函数以及驱动的初始化方法等进行了阐述。该方案思路清晰、结构简单、通用性好。

Based on the analysis of the character,read and write operations of Flash device in universal bootloader,also the structure and relationship between hierarchies of memory technology device in Linux,a driver design scheme,which is suitable for universal bootloader,and supports different Flash devices,was proposed with the thought of hierarchical design.The layers,content and relationship of the layers,main functions and the way of initialization are described.This scheme has a clear design flows,simple architecture and good generality.