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ARM: mvebu: ensure the mdio node has a clock reference on Armada 370/XP 

The mvmdio driver accesses some register of the Ethernet unit. It
therefore takes a reference and enables a clock. However, on Armada
370/XP, no clock specification was given in the Device Tree, which
leads the mvmdio driver to fail when being used as a module and loaded
before the mvneta driver: it tries to access a register from a
hardware unit that isn't clocked.

Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1395790439-21332-2-git-send-email-thomas.petazzoni@free-electrons.com
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Thomas Petazzoni 2014-03-26 00:33:58 +01:00 committed by Jason Cooper
parent dcdf9cfc48
commit a6e03dd451
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/armada-370-xp.dtsi
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@ -230,6 +230,7 @@
#size-cells = <0>; #size-cells = <0>;
compatible = "marvell,orion-mdio"; compatible = "marvell,orion-mdio";
reg = <0x72004 0x4>; reg = <0x72004 0x4>;
clocks = <&gateclk 4>;
}; };
eth1: ethernet@74000 { eth1: ethernet@74000 {