On 20/04/2016 12:22AM, Christophe Leroy <christophe.le...@c-s.fr> wrote > -----Original Message----- > From: Christophe Leroy [mailto:christophe.le...@c-s.fr] > Sent: Wednesday, April 20, 2016 12:22 AM > To: Qiang Zhao <qiang.z...@nxp.com>; da...@davemloft.net > Cc: gre...@linuxfoundation.org; Xiaobo Xie <xiaobo....@nxp.com>; linux- > ker...@vger.kernel.org; o...@buserror.net; net...@vger.kernel.org; > a...@linux-foundation.org; linuxppc-...@lists.ozlabs.org > Subject: Re: [PATCH 5/5] drivers/net: support hdlc function for QE-UCC > > Le 30/03/2016 10:50, Zhao Qiang a écrit : > > The driver add hdlc support for Freescale QUICC Engine. > > It support NMSI and TSA mode. > When using TSA, how does the TSA gets configured ? Especially how do you > describe which Timeslot is switched to HDLC channels ?
the TSA is configured statically according to device tree node. For " which Timeslot is switched to HDLC channels ", there is a property "fsl,tx-timeslot-mask" in device tree to describe it. > Is it possible to route some Timeslots to one UCC for HDLC, and route some > others to another UCC for an ALSA sound driver ? The feature you describe is not supported at present. > The QE also have a QMC which allows to split all timeslots to a given UCC into > independant channels that can either be used with HDLC or transparents (for > audio for instance). Do you intent to also support QMC ? new QE use UMCC instead of QMC in old QE, we have started to develop UMCC. > According to the compatible property, it looks like your driver is for > freescale > T1040. The MPC83xx also has a Quick Engine, would it work on it too ? The driver is common, but tested on t1040, it is needed to add node to MPC83xx If you want to test on mpc83xx. -Zhao Qiang
