From: Wolfgang Denk <wd@de...> - 2003-02-25 21:24:55
In message <20030225125733.A25350@...> you wrote:
> Hi, I am trying to port armboot to my integrator / 920 board. I actualy got
> some things running, but have some questions:
> - the serial IO seems to be glitchy. ie: I have to enter 8 characters before
> seeing anything returned back to me. I have the fifo turned on, and am
> using the ambit serial interface on the board. Anyone have any ideas how I
> might be able to fix this?
What happens if you don't turn on the FIFO? Did you enable caches?
> - What is being done with the development of this tool. I found that the
> code layout is not qute right for the separation of CPU / Mainboard
> combinations. ie: using a 920 processor, the code has specific board support
> for the serial devices on an SA1x0 board.
You may want to have a look at current U-Boot source. We spend some
work on 920 systems since we merged the armboot tree back into a
common source base.
> - are there any good docs on writing assembly code, or rather any code for a
> simple application running from flash. ie: very basic 'hello world' or
> just to flash an LED. I'd like to understand more on getting gcc to deal
> with the correct code layout.
Write in C, and check what GCC makes from this ;-)
> I am currently using the tar'd files, not the CVS version.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
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