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arm64: dts: renesas: ulcb: Add EthernetAVB PHY reset

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Describe the GPIO used to reset the Ethernet PHY for EthernetAVB.
This allows the driver to reset the PHY during probe and after system
resume.

On ULCB, the enable pin of the regulator providing PHY power is always
pulled high, but the driver may still need to reset the PHY if this
wasn't done by the bootloader before.

Inspired by patches in the BSP for the individual Salvator-X/XS boards
by Kazuya Mizuguchi.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven
2017-12-04 11:34:52 +01:00
committed by Simon Horman
parent f5bbcd533a
commit ef4a3bc8da
1 changed files with 1 additions and 0 deletions
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arch/arm64/boot/dts/renesas/ulcb.dtsi
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@@ -154,6 +154,7 @@
reg = <0>; reg = <0>;
interrupt-parent = <&gpio2>; interrupt-parent = <&gpio2>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>; interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
}; };
}; };