In message <3AB1E380.7E88EC47 at esd-electronics.com> you wrote: > > does anybody know if a flash writing tool for Linux is available ?
Which architecture, what type of flash? > I want to update a flash image from a running Linux. The Linux is > running from a ramdisk, so the flash can be erased and rewritten. Yepp, that's what we do all the time. > I think what I need are two thing: A device driver for accessing the > flash and a command line tool for erasing and writing to the flash. Please check the Patch "patch.drivers" (against PPC 2.4.3-pre3 tree) in ftp://ftp.denx.de/pub/LinuxPPC/usr/src/patches/ or have a look at our source snapshot at ftp://ftp.denx.de/pub/LinuxPPC/usr/src/linux-2.4.3-pre3-2001-03-11.tar.bz2 It includes a character device driver for CFI (AMD chips) and JEDEC (Intel chips) compliant flash types. So far, this has been tested on big-endian systems (PowerPC only), but I would be interested in receiving feedback for other architectures as well. Of course there are also user utilities to erase the flash. For writing no special tool is needed - just copy to the device (in fact, if your write block size is a multiple of the erase block size of the chips the driver performs an auto-erase, so you don't need the flash_erase command either). Hope this helps - feel free to ask if there are any question or problems. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de If in any problem you find yourself doing an immense amount of work, the answer can be obtained by simple inspection. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
