Re: u-boot on M5475EVB and M5474Lite

Comments inline.

Allon Stern wrote:
>
> On Aug 30, 2008, at 4:39 AM, Wouter Verhelst wrote:
>> I noticed yesterday that there's a new LTIB BSP out for the coldfire
>> boards, and downloaded it.
>>
>> The last version of the LTIB BSP that I had is quite old now, and came
>> with colilo; recent versions seem to come with u-boot.
>>
>> What I can't seem to find is documentation on u-boot -- i.e., how to use
>> or run it. My 5475EVB currently boots on dBUG, but has colilo at
>> e0000400; the 5474Lite only has dBUG, AFAIK. I've so far not yet managed
>> to load u-boot successfully, and a kernel compiled with the new BSP
>> doesn't seem to boot with colilo.
>>
>> Could anyone give me some pointers?
>>
>> Thanks,
>
> I've got a good bit of experience with u-boot.
> #1: Get the latest u-boot from denx.com
> #2: build it -
> make M5475AFE_CONFIG
That might not be a good idea.  We provide a buildable uboot via ltib
(turn on the build uboot option in ltib).

This BSP contains uboot 1.3.3 with a few m547x/m548x specific patches
that didn't make it into 1.3.3 or 1.3.4.  Those patches have been
submitted for 1.3.5.  The included uboot is the one that was tested (and
is supported).  We are keeping the denx tree up to date, but 1.3.5
wasn't ready when we spun the bsp.

--Kurt
>
> or similar - this board is a bitt different from the other targets
> I've used, in that there are multiple configurations - look in the
> makefile and see what you need;
>
> the actual configuration for your board is done in
> include/configs/M5475EVB.h
> the board support is in board/freescale/m547xevb
> the cpu support is in cpu/mcf547x_8x
>
> u-boot likes to run from ram; depending on configuration options, it
> will probably do early board initialization, then relocate itself.
> This can make debugging a little tricky, particularly when coding
> support for a new platform.
> Since you're putting it on an already supported platform, it shouldn't
> be too hard.
>
> Lemme know if you need anything further.
>
> -
> allon
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