From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
Date: Wed, 26 Feb 2014 13:53:52 +0000
Subject: [PATCH] scripts/link-vmlinux.sh: correct base address for some
 ARM special cases
In-Reply-To: <20140226134605.GF6865@pengutronix.de>
References: <1393413080-26942-1-git-send-email-u.kleine-koenig@pengutronix.de>
 <20140226111507.GW21483@n2100.arm.linux.org.uk>
 <20140226134605.GF6865@pengutronix.de>
Message-ID: <20140226135352.GY21483@n2100.arm.linux.org.uk>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Feb 26, 2014 at 02:46:05PM +0100, Uwe Kleine-K?nig wrote:
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1595,6 +1595,7 @@ endchoice
>  
>  config PAGE_OFFSET
>  	hex
> +	default DRAM_BASE if !MMU
>  	default 0x40000000 if VMSPLIT_1G
>  	default 0x80000000 if VMSPLIT_2G
>  	default 0xC0000000

I'd prefer this actually:

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 24d65aae0491..09289d7b7f68 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1593,6 +1593,7 @@ config BL_SWITCHER_DUMMY_IF
 
 choice
 	prompt "Memory split"
+	depends on MMU
 	default VMSPLIT_3G
 	help
 	  Select the desired split between kernel and user memory.
@@ -1610,6 +1611,7 @@ endchoice
 
 config PAGE_OFFSET
 	hex
+	default PHYS_OFFSET if !MMU
 	default 0x40000000 if VMSPLIT_1G
 	default 0x80000000 if VMSPLIT_2G
 	default 0xC0000000
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 8756e4bcdba0..5ccc4a627192 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -104,10 +104,6 @@
 #define END_MEM     		(UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
 #endif
 
-#ifndef PAGE_OFFSET
-#define PAGE_OFFSET		PLAT_PHYS_OFFSET
-#endif
-
 /*
  * The module can be at any place in ram in nommu mode.
  */

It's more to the point.  The first hunk hides the "Memory split" option
which is irrelevent on !MMU.  We already know that PAGE_OFFSET should
be the same as PHYS_OFFSET for noMMU, so let's make that explicit.
Note that it already is by way of the bit in the last hunk - which as
a result of this change can now be removed... especially so as we have
nothing defining PAGE_OFFSET in arch/arm/*/include...

-- 
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improving, and getting towards what was expected from it.