linux-kernel - RE: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc

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Date:	Tue, 22 Sep 2015 08:24:13 +0000
From:	Zhao Qiang <qiang.zhao@...escale.com>
To:	Scott Wood <scottwood@...escale.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"lauraa@...eaurora.org" <lauraa@...eaurora.org>,
	Xiaobo Xie <X.Xie@...escale.com>,
	"benh@...nel.crashing.org" <benh@...nel.crashing.org>,
	Li Leo <LeoLi@...escale.com>,
	"paulus@...ba.org" <paulus@...ba.org>
Subject: RE: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc

On Tue, Sep 22, 2015 at 06:56 AM +0800, Wood Scott-B07421 wrote:

> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Tuesday, September 22, 2015 6:56 AM
> To: Zhao Qiang-B45475
> Cc: linux-kernel@...r.kernel.org; linuxppc-dev@...ts.ozlabs.org;
> lauraa@...eaurora.org; Xie Xiaobo-R63061; benh@...nel.crashing.org; Li
> Yang-Leo-R58472; paulus@...ba.org
> Subject: Re: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc
> 
> On Fri, Sep 18, 2015 at 03:15:21PM +0800, Zhao Qiang wrote:
> > diff --git a/drivers/soc/fsl/qe/Kconfig b/drivers/soc/fsl/qe/Kconfig
> > new file mode 100644 index 0000000..3012571
> > --- /dev/null
> > +++ b/drivers/soc/fsl/qe/Kconfig
> > @@ -0,0 +1,33 @@ 
> > +	help
> > +	  The QUICC Engine (QE) is a new generation of communications
> > +	  coprocessors on Freescale embedded CPUs (akin to CPM in older
> chips).
> > +	  Selecting this option means that you wish to build a kernel
> > +	  for a machine with a QE coprocessor.
> > +
> > +config UCC_SLOW
> > +	bool
> > +	default y if SERIAL_QE
> > +	help
> > +	  This option provides qe_lib support to UCC slow
> > +	  protocols: UART, BISYNC, QMC
> > +
> > +config UCC_FAST
> > +	bool
> > +	default y if UCC_GETH
> > +	help
> > +	  This option provides qe_lib support to UCC fast
> > +	  protocols: HDLC, Ethernet, ATM, transparent
> 
> What does "qe_lib" mean to the end user, or to anyone after the code is
> moved to drivers/soc/fsl/qe?

Qe_lib has functions configuring ucc, managing muram and so on.
It is the common functions to end user.

> 
> -Scott
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