[PATCH v3] imx27: dt: only map 4 Kbyte for fec registers

[PATCH v3] imx27: dt: only map 4 Kbyte for fec registers

[Philippe Reynes]

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>
---
 arch/arm/boot/dts/imx27.dtsi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Changelog:
v2: (thanks Shawn Guo and Uwe Kleine-Konig)
- map 4 Kbyte instead of 1 Kbyte
v3:
- point that actual fec mapping overlap scc mapping (I forget it in v2)

diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index 6951b66..bc215e4 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -533,7 +533,7 @@
 
 			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>;
-- 
1.7.4.4

Re: [PATCH v3] imx27: dt: only map 4 Kbyte for fec registers

[Uwe Kleine-König]

On Wed, May 13, 2015 at 12:18:26AM +0200, Philippe Reynes wrote:
> 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-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH v3] imx27: dt: only map 4 Kbyte for fec registers

[Shawn Guo]

On Wed, May 13, 2015 at 12:18:26AM +0200, Philippe Reynes wrote:
> 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>

Updated the patch prefix as "ARM: dts: imx27: ", and applied.  Thanks.

Shawn