From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Thu, 20 Mar 2014 23:16:20 +0100
Subject: [PATCH 10/62] ARM: efm32: select AUTO_ZRELADDR
In-Reply-To: <20140320204847.GD23076@pengutronix.de>
References: <1395257399-359545-1-git-send-email-arnd@arndb.de>
 <1395257399-359545-11-git-send-email-arnd@arndb.de>
 <20140320204847.GD23076@pengutronix.de>
Message-ID: <6295310.bvZ6PIzM4N@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Thursday 20 March 2014 21:48:47 Uwe Kleine-K?nig wrote:
> 
> On Wed, Mar 19, 2014 at 08:29:07PM +0100, Arnd Bergmann wrote:
> > The efm32 platform does not provide a zreladdr-y line its Makefile.boot,
> > so we always have to use CONFIG_AUTO_ZRELADDR in order to successfully
> > build and link a zImage.
> I wonder why you need to AUTO_ZRELADDR (which is there to guess
> zreladdr) while efm32 doesn't have an MMU and so there is nothing to
> guess. So I think this patch fixes a build problem, but it's not a good
> change.

It is required in order to build a compressed zImage file. You mentioned
before that your system does not have enough RAM to support this, but
the compile-time option exists, and there is no dependency on MMU support
for it, nor should there be.

	Arnd