Re: Microcode patches for mpc8xx

Re: Microcode patches for mpc8xx

[Vladimir A. Gurevich]

Dear Wolfgang,

Wolfgang Denk wrote:

>>since we are on this topic here: look like SMC relocation is explicitly not supported and I can't see the SPI driver as well (unless it reuses 8260 driver). 
>>    
>>
>In our CVS tree? See the old linux-2.4 tree. We don't see  many  uses of 8xx systems recently with ucode requirements.
>  
>
I am completely puzzled now.  It looks like your stable, but old 
linux-2.4 tree has a much better selection of 8xx drivers compared to 
the linuxppc_2_4_devel. Why is that? What do you recommend for a new 
MPC852T-based development? Can the drivers be dropped into the newer 
tree or more serious backporting effort is needed?

Thanks,
Vladimir

Re: Microcode patches for mpc8xx

[Wolfgang Denk]

Dear Vladimir,

in message <4291DEAF.1080705@paulidav.org> you wrote:
> 
> >In our CVS tree? See the old linux-2.4 tree. We don't see  many  uses of 8xx systems recently with ucode requirements.
> >  
> >
> I am completely puzzled now.  It looks like your stable, but old 
> linux-2.4 tree has a much better selection of 8xx drivers compared to 
> the linuxppc_2_4_devel. Why is that? What do you recommend for a new 

This is because we  have  limited  resources,  and  do  those  things
(first)  where a customer is waiting (and paying) for. Not all of the
work that went into the old 2.4.4 tree was adapted  for  more  recent
versions  of  2.4  yet;  and  most  of  the 2.4 stuff got lost in 2.6
anyway.

> MPC852T-based development? Can the drivers be dropped into the newer 
> tree or more serious backporting effort is needed?

It depends. Most should work fine with minimal changes, but obviously
some effort for a code review and especially testing will be needed.

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
core error - bus dumped