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ARM: mvebu: ensure the mdio node has a clock reference on Armada 38x 

The mvmdio driver accesses some register of the Ethernet unit. It
therefore takes a reference and enables a clock. However, on Armada
38x, 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.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1395790439-21332-3-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 00:33:59 +01:00 committed by Jason Cooper
parent a6e03dd451
commit 33faf20b8e
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/armada-38x.dtsi
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@ -336,6 +336,7 @@
#size-cells = <0>;
compatible = "marvell,orion-mdio";
reg = <0x72004 0x4>;
clocks = <&gateclk 4>;
};
coredivclk: clock@e4250 {