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Re: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc

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  Re: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc Scott Wood <scottwood@freescale.com> - 2015-09-22 01:00 +0200
    RE: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc Zhao Qiang <qiang.zhao@freescale.com> - 2015-09-22 10:40 +0200
      RE: [PATCH v10 5/5] QE: Move QE from arch/powerpc to drivers/soc Zhao Qiang <qiang.zhao@freescale.com> - 2015-09-23 04:10 +0200

#1229811 — 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 @@
> +#
> +# QE Communication options
> +#
> +
> +config QUICC_ENGINE
> +	bool "Freescale QUICC Engine (QE) Support"
> +	depends on FSL_SOC && PPC32
> +	select PPC_LIB_RHEAP
> +	select GENERIC_ALLOCATOR
> +	select CRC32

Why is "select PPC_LIB_RHEAP" still here?

> +	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?

-Scott
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#1229981

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@vger.kernel.org; linuxppc-dev@lists.ozlabs.org;
> lauraa@codeaurora.org; Xie Xiaobo-R63061; benh@kernel.crashing.org; Li
> Yang-Leo-R58472; paulus@samba.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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