On Wed, Aug 03, 2011 at 11:01:09PM +0200, Marc Kleine-Budde wrote: > Hey Robin, > > do you know "Mike Brown <mtb at sgi dot com>", he's working with the > powerpc flexcan, too. > > On 08/03/2011 09:44 PM, Robin Holt wrote: > > I am trying to get the current kernel working with either Greg KH's > > linux-3.0.y stable release tree or Linus' current tree. I have it > > compiling and booting, but the flexcan driver's flexcan_probe() function > > never gets called. > > > > I have made minor changes to the source to get it to compile. The BSP > > from freescale based upon the 2.6.35 kernel has a flexcan driver which is > > significantly different from the current driver. Some of the differences > > are to handle the of_platform changes they have in that version of > > their kernel. > > Freescale decided not to mainline their flexcan changes, moreover they > introduces some bugs into the driver. I send some bugfixes but they > didn't react. > > https://lists.berlios.de/pipermail/socketcan-users/2011-July/001989.html > https://lists.berlios.de/pipermail/socketcan-users/2011-July/001990.html > https://lists.berlios.de/pipermail/socketcan-users/2011-July/001986.html > > > Does anybody know what needs to be done to get the flexcan driver working > > for the P1010 processor? Any suggestions on things I may need to do to > > get it working? Any guidance at all will be very welcome. > > I started hacking a bit on the driver, but as I don't have any hardware, > not clients willing to sponsor (hint, hint!) the work, it's not > bit-rotting in my git. Maybe it helps you (thee uppermost patches): > > http://git.pengutronix.de/?p=mkl/linux-2.6.git;a=shortlog;h=refs/heads/can/flexcan-dt/net-next
We have two P1010RDB boards which have the CAN interfaces. Unfortunately, I am sharing one with other developers and the other is completely out of my control with the exception of a periodic update I am doing to it. Looking over the patches, it looks like your changes are merely breaking up the differences between the slightly stale kernel bits and what was in the Freescale April BSP. Is that correct? If so, I can work on those a bit. The debug patch looks like it could really stand some rework. I did use their debug bits when I was trying to get the driver working on our P1010RDB and it was helpful. It could be done better with some static inlines. Is there a reason these have not been proposed for inclusion in mainline? Have you tested arm with these applied? I do not have any arm hardware to test with. Thanks, Robin _______________________________________________ Socketcan-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/socketcan-users
