Messages in this thread | | | From | Qiang Zhao <> | Subject | RE: [PATCH 5/5] drivers/net: support hdlc function for QE-UCC | Date | Wed, 20 Apr 2016 02:28:08 +0000 |
| |
On 20/04/2016 12:22AM, Christophe Leroy <christophe.leroy@c-s.fr> wrote > -----Original Message----- > From: Christophe Leroy [mailto:christophe.leroy@c-s.fr] > Sent: Wednesday, April 20, 2016 12:22 AM > To: Qiang Zhao <qiang.zhao@nxp.com>; davem@davemloft.net > Cc: gregkh@linuxfoundation.org; Xiaobo Xie <xiaobo.xie@nxp.com>; linux- > kernel@vger.kernel.org; oss@buserror.net; netdev@vger.kernel.org; > akpm@linux-foundation.org; linuxppc-dev@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
| |