rtems_clock_set @ sparc v7 does not work!

[Grigori Khmyrov]

I can compile my project in 4.6.2 SPARC BSP and use MKPROM to get image,
but the binary I create doesn't boot.
I think one parameter missing in the new MKPROM "-Ttext 0x1000000" to 
prepare
image for EEPROM.

Thanks for comments,
Grigori

Joel Sherrill wrote:

> Grigori Khmyrov wrote:
>
>> Yes, it would be reasonable explanation!
>> I use RTEMS 4.0.0 for the sparc BSP
>> And 4.6.2 for i386 BSP (which works)
>>
>> How can I patch "memory barrier" for version 4.0.0?
>> I can not switch easy to the new rtems version because of mkprom 
>> support.
>>
> If you are using 4.0.0 and having problems, then I really can't begin to
> evaluate what is wrong.  That is a very very old version and the gcc you
> are using is very likely too old to even trip the memory barrier problem.
>
> Why is mkprom an issue?  There has to be a way to do the equivalent
> functionality after a tool upgrade.  Even if you have to use objcopy and
> then run the old mkprom.
>
> --joel
>
>> Thank you,
>> Grigori
>>
>>
>> Joel Sherrill wrote:
>>
>>> Grigori Khmyrov wrote:
>>>
>>>> When I set new time at sparc v7 board using rtems_clock_set( 
>>>> &newTime ) function,
>>>> at some point ticks jump back to previous value!?
>>>>
>>>> It does not happen if I use rtems_clock_set twice:
>>>> rtems_clock_set
>>>> rtems_clock_set
>>>>
>>> What version of RTEMS are you using?  Does it have the "memory 
>>> barrier" patch?
>>>
>>> This sounds like the interrupt critical section issue that was 
>>> addressed by that patch.
>>>
>>>> I have same code running at i386 processor and rtems_clock_set is 
>>>> working OK.
>>>>
>>>> Any ideas?
>>>>
>>>> Thank you,
>>>> Grigori
>>>>
>>>
>>
>