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

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

[Michael Roth]

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?


Michael Roth

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

[Jean-Christophe PLAGNIOL-VILLARD]

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.

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

[Michael Roth]

Jean-Christophe PLAGNIOL-VILLARD schrieb:

> 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

Is a git repository with that patch available?


Michael Roth