This document is an application note explaining how to use the external NOR Flash as persistent storage in A2F-Linux.

A2F-Linux provides standard Flash management capabilities found in today's Linux. These include: MTD-based access to Flash devices and partitions as well as journalled file systems such as JFFS2 specifically designed for Flash memory.

Using these capabilities, a wide range of application-level configurations involving persistent storage can be easily implemented with A2F-Linux on SmartFusion. Some of these configurations, including multiple device personalities, maintenance mode of operation, and reliable software upgrades...