[U-Boot] User supplied lowlevel initialization code on at91 plattforms

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Sat Jan 17 11:26:23 CET 2009


On 23:03 Fri 16 Jan     , Michael Roth wrote:
> Hello,
> 
> I'm hacking U-Boot to a new at91sam9261 board and would like to include
> a little bit low level init code (pll, sdram, etc.).
> 
> Normally, in U-Boot it is assumed that on at91 plattforms the bootstrap
> code lives in dataflash which do the job.
> 
> On the board I'm hacking there isn't any dataflash but only nor flash
> from that the board boots.
> 
> So my question is: How can I supply an self written lowlevel_init.S in
> my board directoy that get linked instead the default
> cpu/arm926ejs/at91/lowlevel_init.S code?
> 
> Are there any configuration variables to trick the U-Boot makefiles to
> use my lowlevel_init.S?
for the next release we will introduce a weak function that allow you to add
your own init and example to board at91 from nor

please search on the ML Ronetix patch

Best Regards,
J.


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