Re: [Xenomai] imx28 rtcan flexcan system freezes

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On 01/22/2014 12:36 PM, Alexandre COFFIGNAL wrote:
>>> +        cf->data[3]=((data0 >> 0)  & 0xFF) ;
>>> +        cf->data[2]=((data0 >> 8)  & 0xFF) ;
>>> +        cf->data[1]=((data0 >> 16)  & 0xFF) ;
>>> +        cf->data[0]=((data0 >> 24)  & 0xFF) ;
>>> +        cf->data[7]=((data1 >> 0)  & 0xFF) ;
>>> +        cf->data[6]=((data1 >> 8)  & 0xFF) ;
>>> +        cf->data[5]=((data1 >> 16)  & 0xFF) ;
>>> +        cf->data[4]=((data1 >> 24)  & 0xFF) ;
>>>
>>> rtcan flexcan works perfectly.
>>> is  anyone know what is the problem with first instructions ?
>> Probably mb->data does not have the right alignment. Could you not
>> arrange to get it properly aligned? Failing that, you should use
>> put_unaligned instead of open coding it.
>>
>>
> here structures used in flexcan driver, it seem to be aligned

I am talking about the alignment of cf->data, since obviously, that is 
the one which is causing problems.


-- 
					    Gilles.