Re: [Xenomai-core] MPC8641D and CONFIG_PPC_MERGE

[Heikki Lindholm <holindho@domain.hid>]

Jeff Koftinoff kirjoitti:
> Thank you for your responses, Wolfgang.
> 
> I still have some confusion; I was able to build and run a xenomai 2.2.0 
> patched linux 2.6.14 kernel on a Apple EMac, which has a 7447A processor 
> in it - with no changes, and was able to get good latency results in my 
> tests.

I think the older kernels still supported Apple hardware under the "ppc" 
arch, but in the more recent kernels it's moved to the "powerpc" arch.

> I am currently playing with a 8641D dual core power pc, it is basically 
> two 7448 processors in one package which is almost identical to the 
> 7447A, along with peripherals (ethernet/serial/pcie).  Yet I can't seem 
> to get xenomai compiled for it, even in non-smp mode.
> The 8641D needs a newer kernel than 2.6.14 ( 2.6.19 is okay ).
> What should I do?

If you have followed Linux kernel development and understand the new 
genirq stuff (and eventually irq threads), or are willing to dig into 
it, then why not start a brave porting effort and try to, for example, 
first make your eMac work on newer kernels with adeos/xenomai stuff applied.

-- Heikki Lindholm