Freescale 8541 support

Freescale 8541 support

[Dan Wilson]

Hello,

I am trying to find embedded linux support for the Freescale 8541/8555=
 processor.  I downloaded the latest ELDK sources from the Denx CVS server=
 and found 8540 support in there but nothing (unless I missed it) for the=
 8541.

Does anyone know of any support for that processor?

Thanks,

Dan.

Re: Freescale 8541 support

[Kumar Gala]

On Nov 23, 2005, at 9:32 AM, Dan Wilson wrote:

> Hello,
>
> I am trying to find embedded linux support for the Freescale  
> 8541/8555 processor.  I downloaded the latest ELDK sources from the  
> Denx CVS server and found 8540 support in there but nothing (unless  
> I missed it) for the 8541.
>
> Does anyone know of any support for that processor?

If I'm not mistaken the Denx kernel is based on 2.6.14. This should  
have support for the MPC8541.  Realize that the differences between  
MPC8540 and MPC8541/55 are minor.  Is there something specific on  
MPC8541 your looking for.

- kumar

Re: Freescale 8541 support

[Dan Wilson]

On 11/23/2005 at 9:51 AM Kumar Gala wrote:

> If I'm not mistaken the Denx kernel is based on 2.6.14. This should  
> have support for the MPC8541.  Realize that the differences between  
> MPC8540 and MPC8541/55 are minor.  Is there something specific on  
> MPC8541 your looking for.
> 
> - kumar

Thanks for the reply!  Unfortunately, I am constrained to use the 2.4=
 kernel by another software package that I have to use, which doesn't yet=
 support 2.6.  It appears to me that the 8541/8555 support was put into 2.6=
 and never back-ported to 2.4.  I'll take a look at the manuals today and=
 compare the 8540 to the 8541: perhaps I can live with the 8540 support=
 that does appear to be in the 2.4 kernel.  If not, hopefully the porting=
 job won't be very difficult.

Thanks for your help!

Dan.

Re: Freescale 8541 support

[Kumar Gala]

On Nov 23, 2005, at 10:16 AM, Dan Wilson wrote:

> On 11/23/2005 at 9:51 AM Kumar Gala wrote:
>
>> If I'm not mistaken the Denx kernel is based on 2.6.14. This should
>> have support for the MPC8541.  Realize that the differences between
>> MPC8540 and MPC8541/55 are minor.  Is there something specific on
>> MPC8541 your looking for.
>>
>> - kumar
>
> Thanks for the reply!  Unfortunately, I am constrained to use the  
> 2.4 kernel by another software package that I have to use, which  
> doesn't yet support 2.6.  It appears to me that the 8541/8555  
> support was put into 2.6 and never back-ported to 2.4.  I'll take a  
> look at the manuals today and compare the 8540 to the 8541: perhaps  
> I can live with the 8540 support that does appear to be in the 2.4  
> kernel.  If not, hopefully the porting job won't be very difficult.

I believe the linuxppc-dev 2.4 tree had support for the MPC8541/55.

- kumar

Re: Freescale 8541 support

[Dan Malek]

On Nov 23, 2005, at 11:19 AM, Kumar Gala wrote:

> I believe the linuxppc-dev 2.4 tree had support for the MPC8541/55.

Yes, it does.  If anyone spends more than a couple of hours,
or does anything that isn't board specific, you are probably
headed down the wrong path. :-)

	-- Dan

Re: Freescale 8541 support

[Wolfgang Denk]

In message <200511230816400937.2B36A589@smtp.dslextreme.com> you wrote:
> 
> Thanks for the reply!  Unfortunately, I am constrained to use the 2.4
>  kernel by another software package that I have to use, which doesn't yet
>  support 2.6.  It appears to me that the 8541/8555 support was put into 2.6
>  and never back-ported to 2.4.  I'll take a look at the manuals today and

Yes. We will add specific board support for the 8541/8555  (in  terms
of the TQM8541 and TQM8555 boards) to our 2.6 git repository in a few
days, but we don't have any intentions to support these boards in our
2.4 tree (unless you pay us for it, of course :-)

>  compare the 8540 to the 8541: perhaps I can live with the 8540 support
>  that does appear to be in the 2.4 kernel.  If not, hopefully the porting
>  job won't be very difficult.

It's just a routine job, but it takes time  and  resources,  and  you
have  to  decide  if  it makes sense to invest these in a kernel tree
that will not be developed any further.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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