On 30/07/2011 13:47, Angelo Dureghello wrote:
> On 30/07/2011 13:05, Wolfgang Wegner wrote:
>> Hi Angelo,
>>
>> On Sat, Jul 30, 2011 at 11:06:56AM +0200, Angelo Dureghello wrote:
>>> hi all,
>>>
>>> i have some issues with an mcf5307 (coldfire, see my previous post of 38
>>> Jul).
>>>
>>> I am now suspecting of some differences in the toolchain.
>>>
>>> Is there a specific gcc toolchain (or gcc version) required to build u-boot
>>> ?
>>
>> I had good results using CodeSourcery Light (don't remember the exact
>> version,
>> something from 2009) for MCF5373 and MCF54455 in early 2010.
>>
>> Unfortunately I am currently not working on it any more.
>>
>> Best regards,
>> Wolfgang
>>
>
> many thanks,
>
> i have a very strange issue:
>
> on a timer interupt i ger a vector 3 error:
>
> _int_handler:
> // commeneted all, only rte left, exception in rte
>
> rte
>
>
>
> *** Unexpected exception ***
> Vector Number: 3 Format: 04 Fault Status: 4
>
> PC: 00fe910a SR: 00002000 SP: 00ed8af0
> D0: 00002c1b D1: 0000001b D2: 00400000 D3: 00ee8b76
> D4: ffc12d08 D5: ffffffff D6: 00ffad57 D7: 00ee8b76
> A0: 00ee8b76 A1: 00fe9604 A2: 00ee8bc6 A3: 00ffd400
> A4: 00ff8167 A5: 00ffbb00 A6: 00ed8b48
>
>
> there is nothing inside the interrupt handler, so there would be apparently
> any reason to get the exception on "rte", so my only suspect is about
> toolchain/compiler.
>
> every help is welcome
>
>
> Reagards,
> angelo
>
I found something interesting:
_int_handler:
rts
seems to work, execution return to board_init_r, even if still the command
console seems locked.
_int_handler:
rte
generate the exception above.
Seems that @ SP there is the "next" return address instead of the
vector/format/status values.
Any help is really appreciated.
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