RE: [PATCH][POWERPC] QE: Make QUICC Engine support a configurableoption

-----Original Message-----
From: Kumar Gala [mailto:galak@kernel.crashing.org]
Sent: Thursday, March 15, 2007 11:49 AM
To: Li Yang-r58472
Cc: Tabi Timur-B04825; Phillips Kim-R1AAHA; linuxppc-dev@ozlabs.org
Subject: Re: [PATCH][POWERPC] QE: Make QUICC Engine support a

configurableoption

=20
=20
On Mar 14, 2007, at 10:02 PM, Li Yang-r58472 wrote:
=20

quoted

quoted

-----Original Message-----
From: linuxppc-dev-bounces+leoli=3Dfreescale.com@ozlabs.org
[mailto:linuxppc-dev-bounces+leoli=3Dfreescale.com@ozlabs.org] On
Behalf

Of Timur

quoted

Tabi
Sent: Thursday, March 15, 2007 3:36 AM
To: Phillips Kim-R1AAHA
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH][POWERPC] QE: Make QUICC Engine support a

configurableoption

quoted

Kim Phillips wrote:

quoted

On Wed, 14 Mar 2007 13:15:05 -0500 (CDT)
Kumar Gala [off-list ref] wrote:

quoted

 arch/powerpc/Kconfig                |    8 --------
 arch/powerpc/platforms/83xx/Kconfig |   12 ++++++++++--
 2 files changed, 10 insertions(+), 10 deletions(-)

What about 85xx QE support?

Kumar and I talked about it.  85xx support will be added when QE
works

on 85xx.

quoted

However,
the patch still needs changes.  To allow each CPU family to have

its

quoted

own QE option,

quoted

we'll
need to define something like QUICC_ENGINE_83xx and
QUICC_ENGINE_85xx,

and then

quoted

have
something like this:

config QUICC_ENGINE
	bool
	default y if QUICC_ENGINE_83xx || QUICC_ENGINE_85xx

I don't think we need these new options.  If there are differences
between the two SOC versions, presumably not too many, we can

address

quoted

them in device tree.  It's better to leave the QUICC_ENGINE option

at

quoted

arch/powerpc/Kconfig level, IMHO.

=20
=20
The issue isn't dealing with differences between 83xx/85xx.  Its
allowing the choice for only those two subarchs.

If you want to make it configurable, I suggest we put it under the
"Processor Support" menu in arch/powerpc/Kconfig like Altivec and SPE.
It is a chip feature rather than board.  And we won't need the two
redundant options then.

- Leo