[PATCH AUTOSEL 5.4 18/26] dts: phy: add GPIO number and active state used for phy reset

Sasha Levin sashal at kernel.org
Tue Jan 19 20:26:55 EST 2021


From: Sagar Shrikant Kadam <sagar.kadam at sifive.com>

[ Upstream commit a0fa9d727043da2238432471e85de0bdb8a8df65 ]

The GEMGXL_RST line on HiFive Unleashed is pulled low and is
using GPIO number 12. Add these reset-gpio details to dt-node
using which the linux phylib can reset the phy.

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam at sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt at google.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index cc04e66752aac..1ad3dc2fb6343 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -85,6 +85,7 @@ &eth0 {
 	phy0: ethernet-phy at 0 {
 		compatible = "ethernet-phy-id0007.0771";
 		reg = <0>;
+		reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
 	};
 };
 
-- 
2.27.0




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