| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 020/158] ARM: mvebu: ensure the mdio node has a clock reference on Armada 370/XP | Date | Sun, 4 May 2014 11:38:49 -0400 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
commit a6e03dd451c724f785277d8ecca5d1a0b886d892 upstream.
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.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/arm/boot/dts/armada-370-xp.dtsi | 1 + 1 file changed, 1 insertion(+)
--- a/arch/arm/boot/dts/armada-370-xp.dtsi +++ b/arch/arm/boot/dts/armada-370-xp.dtsi @@ -226,6 +226,7 @@ #size-cells = <0>; compatible = "marvell,orion-mdio"; reg = <0x72004 0x4>; + clocks = <&gateclk 4>; }; eth1: ethernet@74000 {
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