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[03/11] arm64: dts: renesas: ulcb: Add EthernetAVB PHY reset

Message ID ef4a3bc8dab721a3dbea871f35e0217643aa860c.1513936761.git.horms+renesas@verge.net.au (mailing list archive)
State Accepted
Commit ef4a3bc8dab721a3dbea871f35e0217643aa860c
Headers show

Commit Message

Simon Horman Dec. 22, 2017, 10:29 a.m. UTC 
From: Geert Uytterhoeven <geert+renesas@glider.be>

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>
---
 arch/arm64/boot/dts/renesas/ulcb.dtsi | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index 0d85b315ce71..be91016e0b48 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -154,6 +154,7 @@ 
 		reg = <0>;
 		interrupt-parent = <&gpio2>;
 		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
 	};
 };