linux-kernel - Re: ARM defconfig files

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Message-ID: <20100603181303.GB25779@flint.arm.linux.org.uk>
Date:	Thu, 3 Jun 2010 19:13:03 +0100
From:	Russell King <rmk@....linux.org.uk>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Daniel Walker <dwalker@...eaurora.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-arm-msm@...r.kernel.org
Subject: Re: ARM defconfig files

On Thu, Jun 03, 2010 at 07:46:23PM +0300, Tony Lindgren wrote:
> Compiling in multiple ARM platforms is trickier, we would have to get
> rid of the duplicate defines like NR_IRQS, then have some common clock
> framework etc. Then figure out some way to get rid of Makefile.boot.
> Russell probably has some other things in mind that would have to be
> changed to make this happen.

- Find someway to handle the wide variety of interrupt controllers.
- Be able to handle any multitude of V:P translations, including non-linear
  alongside linear transations.
- Different PAGE_OFFSETs
- Different kernel VM layouts allowing for a variety of different ioremap
  region sizes

and so the list goes on...

> That way maybe you can wait a bit longer for the other defconfigs
> and as an extra bonus I won't get flamed for removing these omap
> defconfigs ;)

Note that Linus is talking about removing all but one or two ARM
defconfigs - which means your omap3_defconfig will probably be
eventually culled.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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