[ECOS] Re: Help -- Creating a FAT Filesystem on a NOR Flash Device

John Dallaway john@dallaway.org.uk
Wed Sep 9 17:56:00 GMT 2009


Hi Ramgopal

Ramgopal Kota wrote:

> I am working on a MIPS Malta board with 16MB NOR Flash device.
> I want to create a FAT Filesystem of 2MB size from an offset.
> 
> I pulled in the required packages for FAT FS and IO.
> I created a device /dev/flash2 in the cdl file.
> 
> When I am doing a mount from my ecos application using ..
> err = mount( "/dev/flash2/", "/", "fatfs" );
> I am getting err as -1 ...

There's a fundamental problem here. The FAT filesystem is intended to
work on a _disk_ device using the eCos disk I/O layer, not on a raw
Flash device. The JFFS2 and ROM filesystems will work on a raw Flash device.

John Dallaway

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