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
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