linux-kernel - [PATCH CFT] ARM:REALVIEW: Enable AUTO

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Message-Id: <1389242654-3925-1-git-send-email-panchaxari.prasannamurthy@linaro.org>
Date:	Thu,  9 Jan 2014 10:14:14 +0530
From:	panchaxari <panchaxari.prasannamurthy@...aro.org>
To:	viresh.linux@...il.com
Cc:	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	panchaxari.prasannamurthy@...aro.org,
	Will Deacon <will.deacon@....com>,
	Pawel Moll <Pawel.Moll@....com>,
	Russell King <linux@....linux.org.uk>,
	Rob Herring <rob.herring@...xeda.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Olof Johansson <olof@...om.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH CFT] ARM:REALVIEW: Enable AUTO_ZRELADDR by default

This patch enables AUTO_ZRELADDR as default config to Realview platform.

AUTO_ZRELADDR config enables auto calculation of the decompressed kernel image
address. AUTO_ZRELADDR config is mutually exclusive to ZBOOT_ROM, and also
assumes zImage to be loaded in the first 128MiB from start of memory.

CFT::Call For Testing

Requesting maintainers of Realview platforms to evaluate the changes on the
board and comment, as I dont have the board for testing, and also requesting
an ACK.

Signed-off-by: panchaxari <panchaxari.prasannamurthy@...aro.org>
Cc: Will Deacon <will.deacon@....com>
Cc: Pawel Moll <Pawel.Moll@....com>
Cc: Russell King <linux@....linux.org.uk>
Cc: Rob Herring <rob.herring@...xeda.com>
Cc: Viresh Kumar <viresh.linux@...il.com>
Cc: Shawn Guo <shawn.guo@...aro.org>
Cc: Olof Johansson <olof@...om.net>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org

---
Below lkml link is a quoting by Russell, which explains more on concept of
PHYS_VIRT and ZRELADDR
-------------------------------------------------

https://lkml.org/lkml/2011/10/14/434

-------------------------------------------------
---
 arch/arm/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3dfc3b8..077ef9d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -332,6 +332,7 @@ config ARCH_REALVIEW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
 	select ARM_TIMER_SP804
+	select AUTO_ZRELADDR
 	select COMMON_CLK
 	select COMMON_CLK_VERSATILE
 	select GENERIC_CLOCKEVENTS
-- 
1.7.10.4

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