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Re: eCos for MPC5554


It seem there is/was some work on MPC5554 but afaik it's still not
commited to CVS (u can look for a discussion in patches mailing list).

We have idea of making MPC5500 port once we got into some MPC5500
related project, but somebody might be able to start earlier so here is
our scenario.

Our idea is to use existing MAC7100 port and combine it with some PPC
(possibly MPC565) (or was it in the opposite order?)

There might be architectural issue but, at least for interrupt
controller (INTC) it should be possible to build on MAC7100 port code
since MPC5500's and MAC7100's INTCs are quite similar so pretty much of
the code could be re-used.

Even better is situation with serial controller (ESCI) that seem to be
identical on both MPC5500 and MAC7100. Having in mind this ESCI driver
should work with no or slight changes.

Finally I have a question. What is status with GCC, does it support e200
core? My primary concern is floating point since here I see most radical
difference between classic and Book E with respect to compiler.

Regards
Ilija

Michael Pederson wrote:
> The MPC5554 is Book E PowerPC and the existing PowerPC HAL is Classic
> PowerPC, and so far as I know there is not even a Book E PowerPC HAL. 
> I am also interested in a Book E HAL and, hence, any existing MPC5554
> or other port as far as what it would have to say about Book E vs
> Classic differences.  Interrupts, for one, work very differently.  I
> have been working with the existing PowerPC HAL for a different port
> and creating workarounds where needed, but that port is fairly limited.
>
> Rohit Pandita wrote:
>> Hi all,
>> Is there an eCos port available for MPC5554? Or is anyone working on
>> it at this time. Thanks in advance.
>>
>> Regards,
>> Rohit
>>
>


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