ARM946E-S supported by RTEMS?

Joel Sherrill joel.sherrill at OARcorp.com
Wed Feb 20 21:41:46 UTC 2008


Smith, Gene SEA wrote:
> I am looking at the possibility of using RTEMS on a ARM946E-S based
> system. This is a SoC embedded core described here:
>
> http://www.arm.com/products/CPUs/core_selector.html and here
> http://www.arm.com/products/CPUs/ARM946E-S.html
>
> There are RPMs for ARM and various BSPs in RTEMS.
>
> Are the RPMs appropriate for this ARM variant?
>   
They should be since I see this in gcc:

ARM_CORE("arm9tdmi",      arm9tdmi,     4T,    FL_LDSCHED, fastmul)
ARM_CORE("arm920",        arm920,       4T,    FL_LDSCHED, fastmul)
ARM_CORE("arm920t",       arm920t,      4T,    FL_LDSCHED, fastmul)
ARM_CORE("arm922t",       arm922t,      4T,    FL_LDSCHED, fastmul)
ARM_CORE("arm940t",       arm940t,      4T,    FL_LDSCHED, fastmul)

I take that to mean that the 920 is the same as the 940
to gcc and we already have support for 3 920 based BSPs.
> Which ARM BSP (if any) would make the best starting point?
>   
Probably one of the ARM920 ones if I had to guess.
Most of the work will be in device drivers.

We talk about first in CPU family, first with CPU model,
etc.  I think this is logically another board since the CPU
core appears to be supported.

If you need help, that's what I am here for.  I could lend
you a hand to get the ARM working. :-D

--joel
> Thanks,
> -gene
>
>
>
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>   


-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
   Support Available             (256) 722-9985





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