linux-kernel - [PATCH 3.4 110/146] ARM: dts: imx27: only map 4 Kbyte for fec registers

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Message-Id: <1442307861-32031-110-git-send-email-lizf@kernel.org>
Date:	Tue, 15 Sep 2015 17:03:45 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Philippe Reynes <tremyfr@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>, Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 110/146] ARM: dts: imx27: only map 4 Kbyte for fec registers

From: Philippe Reynes <tremyfr@...il.com>

3.4.109-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit a29ef819f3f34f89a1b9b6a939b4c1cdfe1e85ce upstream.

According to the imx27 documentation, fec has a 4 Kbyte
memory space map. Moreover, the actual 16 Kbyte mapping
overlaps the SCC (Security Controller) memory register
space. So, we reduce the memory register space to 4 Kbyte.

Signed-off-by: Philippe Reynes <tremyfr@...il.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Fixes: 9f0749e3eb88 ("ARM i.MX27: Add devicetree support")
Signed-off-by: Shawn Guo <shawn.guo@...aro.org>
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 arch/arm/boot/dts/imx27.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index bc5e7d5..9cc8ed2 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -208,7 +208,7 @@
 
 			fec: fec@...2b000 {
 				compatible = "fsl,imx27-fec";
-				reg = <0x1002b000 0x4000>;
+				reg = <0x1002b000 0x1000>;
 				interrupts = <50>;
 				status = "disabled";
 			};
-- 
1.9.1

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