[U-Boot] ep93xx port status

[U-Boot] ep93xx port status

[Martin Guy]

Hi Matthew
   I see the ep93xx support in u-boot was added in feb 2010 and
removed in aug/sep 2011.
I'm looking at fixing and maintaining this for our product - do you
remember the status of this port, and to what extent it worked on the
EDB93xx boards with what issues?

Thanks

    M

[U-Boot] ep93xx port status

[Marek Vasut]

> Hi Matthew
>    I see the ep93xx support in u-boot was added in feb 2010 and
> removed in aug/sep 2011.
> I'm looking at fixing and maintaining this for our product - do you
> remember the status of this port, and to what extent it worked on the
> EDB93xx boards with what issues?

You can dig this from the U-Boot history (hint: git log ; hint #2: gitk).

M

[U-Boot] ep93xx port status

[Matthias Kaehlcke]

Hi Martin,

the main issue the ep93xx port had was relocation. I spent some time
trying to fix it but got stuck digging in the dark as my boards don't
expose the JTAG interface. besides that there where no issues known to
me, it was possible to boot from NOR or via tftp and start Linux

I used the port on boards based on the edb9301 and edb9307a
designs. People reported having it working on other boards of the
edb93xx family, i recall the edb9315a was one of them

I hope this information is useful for you. Although I don't use the
platform anymore I would love to see the port resucitate :)

Best regards

Matthias

El Fri, Dec 02, 2011 at 01:28:18PM +0100 Martin Guy ha dit:

>    I see the ep93xx support in u-boot was added in feb 2010 and
> removed in aug/sep 2011.
> I'm looking at fixing and maintaining this for our product - do you
> remember the status of this port, and to what extent it worked on the
> EDB93xx boards with what issues?

-- 
Matthias Kaehlcke
Embedded Linux Developer
Amsterdam

    Tant qu'il y aura sur terre des hommes pour qui existe un concept
    d' 'honneur national', la menace d'une nouvelle guerre subsistera
                              (B. Traven)
                                                                 .''`.
    using free software / Debian GNU/Linux | http://debian.org  : :'  :
                                                                `. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-

[U-Boot] ep93xx port status

[Martin Guy]

On 2 December 2011 22:01, Matthias Kaehlcke <matthias@kaehlcke.net> wrote:
> the main issue the ep93xx port had was relocation.

That's what I'm seeing, having fixed one bug in the initial setup due
to the fact that the low level initial setup code runs from flash
before relocation and from RAM at a different address after, so
nothing can use absolute text addresses at that early stage.

> it was possible to boot from NOR or via tftp and start Linux
>
> I used the port on boards based on the edb9301 and edb9307a
> designs. People reported having it working on other boards of the
> edb93xx family, i recall the edb9315a was one of them

Thanks, that's exactly what I needed to know.  I am guessing that it
was removed because things had changed in the u-boot infrastructure
but this port wasn't updated and didn't compile any more.

    M