ARM: dts: imx27: only map 4 Kbyte for fec registers

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@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 9f0749e3eb88 ("ARM i.MX27: Add devicetree support")
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index 4b063b68db44cbd1f99c3b63bcdb5463a0236baa..9ce1d212874963d634711341d100e7f30b55e30e 100644 (file)
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -531,7 +531,7 @@ iim: iim@10028000 {
 
                        fec: ethernet@1002b000 {
                                compatible = "fsl,imx27-fec";
-                               reg = <0x1002b000 0x4000>;
+                               reg = <0x1002b000 0x1000>;
                                interrupts = <50>;
                                clocks = <&clks IMX27_CLK_FEC_IPG_GATE>,
                                         <&clks IMX27_CLK_FEC_AHB_GATE>;