netdev - Re: Merging SSB and HND/AI support

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Date:	Mon, 17 Jan 2011 13:00:09 +0100
From:	Michael Büsch <mb@...sch.de>
To:	Florian Fainelli <florian@...nwrt.org>
Cc:	Jonas Gorski <jonas.gorski@...il.com>, linux-mips@...ux-mips.org,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Merging SSB and HND/AI support

On Mon, 2011-01-17 at 12:20 +0100, Florian Fainelli wrote: 
> On Monday 17 January 2011 11:56:23 Michael Büsch wrote:
> > On Mon, 2011-01-17 at 11:46 +0100, Jonas Gorski wrote:
> > > Hello,
> > > 
> > > I am currently looking into adding support for the newer Broadcom
> > > BCM47xx/53xx SoCs. They require having HND/AI support, which probably
> > > means merging the current SSB code and the HND/AI code from the
> > > brcm80211 driver. Is anyone already working on this?
> > > 
> > > As far as I can see, there are two possibilities:
> > > 
> > > a) Merge the HND/AI code into the current SSB code, or
> > > 
> > > b) add the missing code for SoCs to brcm80211 and replace the SSB code
> > > with it.
> > 
> > Why can't we keep those two platforms separated?
> 
> That is also what I am wondering about. Considering that previous BCM47xx 
> platforms use a MIPS4k core and newer one use MIPS74k or later, you would not 
> be able to build a single kernel for both which takes advantages of compile-
> time optimizations targetting MIPS74k. If this ist not a big concern, then 
> let's target a single kernel.

Ok, but it should be easily possible to compile both SSB and HND/AI
bus support into one kernel anyway. Nothing prevents drivers from having
an SSB and an HND/AI probe callback.

-- 
Greetings Michael.

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