[U-Boot] powerpc/mpc85xx: Increase image size

[York Sun]

On 10/11/2013 11:56 AM, York Sun wrote:
> On 10/11/2013 11:39 AM, Scott Wood wrote:
>> On Fri, 2013-10-11 at 11:29 -0700, York Sun wrote:
>>> Scott, et al.
>>>
>>> I'd like to start the discussion to increase u-boot image size for some
>>> mpc85xx targets. As we all know the reset vector is at the very end and
>>> linking process start from the top. This gives us no good choice but to
>>> use fixed image size. While we have more and more features, the size
>>> increases inevitably. It's time to adjust the arbitrary size. We are now
>>> using 512KB. Shall we go with 768KB, or even 1MB?
>>
>> 768K would affect fewer existing partition maps (many of which leave 1M
>> for U-Boot and environment combined), but 1M might be better for new
>> boards.  And of course it would be nice if someone could spare some time
>> to try to slim things down (finer-grained compile-time config,
>> speed/size tradeoffs, etc).
>>
>>> For the first step, I think we don't have to increase size for all
>>> targets. We can adjust those with CONFIG_SYS_TEXT_BASE=0xeff80000. Those
>>> are the most recent used. There are other targets which don't use NOR
>>> flash boot method. They should be considered as well.
>>>
>>> It is per board configuration. But it may be better if we keep them
>>> consistent.
>>
>> I don't think it's worth trying to keep them consistent.  Leave alone
>> old boards that are not pushing the limit, and where testing and user
>> education would be a hassle, and let newer boards where more features
>> are wanted not be constrained by the past.
>>
> 
> I did a quick search for eff80000. Only these boards have it
> 
> include/configs/B4860QDS.h
> include/configs/C29XPCIE.h
> include/configs/corenet_ds.h
> include/configs/HWW1U1A.h
> include/configs/MPC8536DS.h
> include/configs/MPC8572DS.h
> include/configs/P1010RDB.h
> include/configs/P1022DS.h
> include/configs/P1023RDB.h
> include/configs/P1023RDS.h
> include/configs/P1_P2_RDB.h
> include/configs/p1_p2_rdb_pc.h
> include/configs/p1_twr.h
> include/configs/P2020DS.h
> include/configs/P2041RDB.h
> include/configs/T1040QDS.h
> include/configs/t4qds.h
> 

Scott,

Are SPL and TPL boot methods immune from the size issue here?

York