linux-kernel - [PATCH 3.16.y-ckt 090/110] ARM: dts: imx27: only map 4 Kbyte for fec registers

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Date:	Fri,  5 Jun 2015 14:58:13 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Philippe Reynes <tremyfr@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 090/110] ARM: dts: imx27: only map 4 Kbyte for fec registers

3.16.7-ckt13 -stable review patch.  If anyone has any objections, please let me know.

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

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

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: Luis Henriques <luis.henriques@...onical.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 a75555c39533..e721736fe879 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -499,7 +499,7 @@
 
 			fec: ethernet@...2b000 {
 				compatible = "fsl,imx27-fec";
-				reg = <0x1002b000 0x4000>;
+				reg = <0x1002b000 0x1000>;
 				interrupts = <50>;
 				clocks = <&clks 48>, <&clks 67>;
 				clock-names = "ipg", "ahb";
--
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