Manish Joshi <mjoshi_blr <at> yahoo.com> writes: > > > Hi, > > I am trying to bring up MCC (Multi Channel Communication controller) on MPC8270 board for T1/E1. > The overall configuration looks fine since I am able to have a communication properly if I do a T1 Cross over Loopback and tx/rx HDLC data. > The things do not work smoothly if I connect my T1 line with an external device and start HDLC. > I am seeing 'NO' (Rx Non-Octet Alligned Frame) errors in my rx buffers. Sometimes I also see Rx abort errors. > I do not see this issue on the tx side i.e the external device does not report any of these when I tx HDLC data to it. > > Does anybody have any experience dealing with this ? > > As far as clocking and sync with TSA is concerned, I have just configured > CMXSI2CR register with 0x00 ( I have only TDM2A driven by CLK1) and nothing else. > Do I need to do something more for clocking etc? Also I am doing this before SI initialisation. > I will also try doing it just after TDM init and see if it helps. > Please help. > > Thanks, > -Manish > > > > > > Yahoo! for GoodClick here to donate to the Hurricane Katrina relief effort. > > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded <at> ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded
Hi Manesh, Do you by chance have the linux driver you can share for implementing MCC driver for MPC 8270. I am trying to implement a driver for enabling the MCC on MPC 8250 and will be great to have a reference code. Regards, Solan _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
