Re: can4linux compilation for i.mx25 under 2.6.39

[Martin Kozusky <mkozusky@kkmicro.cz>]

Dne 30.5.2012 14:05, Martin Kozusky napsal(a):
> Dne 30.5.2012 13:50, Marc Kleine-Budde napsal(a):
>> Hello Martin,
>>
>> On 05/30/2012 01:39 PM, Martin Kozusky wrote:
>>> Hello,
>>> I downloaded latest sources of can4linux from svn and I'm trying to
>>> compile it for 2.6.39 kernel (i.mx25 driver).
>>> I edit cross-imx25 with proper compiler settings etc then ".
>>> cross-imx25" and "make"
>>>
>>> There are some errors like
>>> core.c:441:12: error: 'CAN1_BASE_ADDR' undeclared
>>> core.c:452:11: error: 'MXC_INT_CAN1' undeclared
>>>
>>> I can change CAN1_BASE_ADDR to MX25_CAN1_BASE_ADDR and MXC_INT_CAN1 to
>>> MX25_INT_CAN1, but there is error
>>>
>>> imx35.c:18:26: fatal error: mach/mxc_can.h: No such file or directory
>>
>> It comes from a Karo patch:
>>
>> http://git.openpandora.org/cgi-bin/gitweb.cgi?p=openembedded.git;a=commitdiff_plain;h=58d6c0ace0c9fe2a3ed9fa845bec9a89583e2fd5
>>
>>
>>> Does anybody have idea where do I get this file? When I comment this
>>> line, compilation continues and stops at
>>>
>>> imx35.c:113:18: error: dereferencing pointer to incomplete type
>>>
>>> Does it have anything to do with Karo tx25 board? (which I'm not using)
>>> I already have CAN running using SocketCAN, but I also wanted to try
>>> can4linux.
>>
>> Why do you want to use can4linux? Socketcan is the official CAN Stack
>> for Linux. Be sure you use the latest kernel, because the flexcan driver
>> has some bugs and problems prior to v3.4.
>>
>> Regards, Marc
>>

And I can only use 2.6.39 kernel because there is no patch for my board 
for kernel 3.x yet :(


>>
>
> Hello Marc,
> I wanted to try if it will be faster than socketcan (which is dropping
> some CAN frames on my HW under heavy load). I need the closest way to
> the controller, and I thought that when can4linux is not using sockets
> layer it could be faster. I also wanted to try LinCAN (which is compared
> to SocketCAN here:
> http://dce.felk.cvut.cz/hanzalek/publications/Hanzalek10_168894.pdf )
> but I think it doesn't support Flexcan
>
> Martin
>
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