RE: Using the MTD utilities

Paul Bartholomew Mon, 06 Nov 2006 17:36:42 -0800

Title: Message

Are you trying to access NOR flash while the hard drive is enabled? I *think* you can only use one or the other (at least I seem to remember reading that).

uboot works woth NOR because it hasn't enabled/doesn't use the IDE.

- Paul

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, November 06, 2006 8:18 PM
To: [email protected]
Subject: Using the MTD utilities

Hi all,

I am trying to change the NOR flash contents from the target Linux environment using the utilities : flash_erase , flashcp, flash_lock, ftl_format etc that are provided in the hard disk…

My kernel properly recognizes the NOR flash and makes all the necessary partitions. I can write jffs2 images to flash using uboot and mount them successfully to Linux kernel. The problem is that when I am trying to use the MTD utilities in Linux (in order to write a new image to flash) I get errors like:


        ./flash_erase /dev/mtd4
        MTD Erase failure: Input/output error

        ./ftl_format /dev/mtd8
        block erase failed: Input/output error

        ./ftl_check /dev/mtd8
        Memory region info:
        Region size = 5 mb Erase block size = 64 kb
        No valid erase unit headers!

Has anyone ever managed to use these utilities? Any idea of what is going wrong?

Any help will be appreciated.

Thanks,
Kostas

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RE: Using the MTD utilities

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