嵌入式Linux系统下闪存设备驱动程序设计

Design for Flash Memory Device Driver in the Embeded Linux

嵌入式系统通常使用闪存作为存储设备,通过MTD技术可以方便地访问flash这样的MTD设备。本文中介绍了Linux驱动程序框架,详细分析了MTD设备驱动程序的层次结构和数据结构,以EBD9315开发板为例,系统地给出了如何针对Nor flash设计MTD驱动程序。

The embedded system often uses flash memory to store code and data. Through the driver of MTD（ Memory Technology Device） in the embedded Linux, it is to access the MTD devices, such as flash. This paper introduces the framework of the Linux driver and gives a detailed analysis of the architecture and data structures of the MTD device driver. By taking the platform of EBD9315 for example, the paper systematically describes how to develop MTD driver for Nor flash.