So I assume your plan is to write a custom
bootloader? Or are you going to
attempt to use the Angel firmware?
Mathias Teikari wrote:
>
> Jim, and others who are interested..
>
> I am also working with the EBSA-285. My plans are to port the Journaling Flash
> File System (JFFS) supplied as open source (GPL) by Axis Communications, (
> http://developer.axis.com/software/jffs/ )
> and eventually boot and run linux from it on a stand alone EBSA.
>
> During development and debug, I intend to upload the kernel via the serial port
> and to mount an NFS root file system.
>
> Jim Fischer wrote:
>
> > I'm at the point where I'm about ready to download some binaries onto the
> > EBSA card, but I haven't been able to find any utilities that I can use to
> > do this. Specifically, I'm looking for a FAQ or README or HOWTO somewhere
> > that discusses how to:
>
> > a) Create a compressed kernel image, RAM disk, basic file system and some
> > tools (e.g., bash shell) that can be booted from the EBSA 285's flash
> > memory, and,
>
> I'm using the EBSA-285 bios-1.06 from
> ftp://ftp.arm.linux.org.uk/pub/armlinux/source/boot/
> with Nicolas Pitre's patch ebsa285-bios-1.06.diff2, available at
> ftp://ftp.netwinder.org/users/n/nico/
> where you can also find various patches and examples of ramdisk images.
> The bios allows you to boot from flash, network, serial port or disk. Building
> the kernel is done the usual way once you've got your arm-toolchain set up and
> running. There is of course the minor issue of tweaking the top level makefile
> to use the arm relevant part of the kernel and your cross-toolchain.
> (i.e. set ARCH = arm and CROSS_COMPILE = arm-linux- (provided, of course, that
> your toolchain prefix is arm-linux- ;o) )
>
> > b) Download a binary 'elf' image from a PC host (running Windows
> > NT/DOS/Linux) to the EBSA's flash memory
>
> There is a flash burning utility for Linux systems and EBSA-285 that comes with
> the eCos-1.3.1 distribution. How to use it is described in the "Getting started
> with eCos" document under "Loading the ROM image into on-board flash".
> http://sourceware.cygnus.com/ecos/
> The Intel FMU that comes with the EBSA should also do the trick, although I
> haven't used it myself.
>
> Enjoy! ;o)
>
> - Mathias
>
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