[PATCH 7/8] arm64: dts: imx8mm-kontron: Fix reset delays for ethernet PHY

From: Frieder Schrempf
Date: Thu Sep 30 2021 - 11:57:27 EST


From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>

According to the datasheet the VSC8531 PHY expects a reset pulse of 100 ns
and a delay of 15 ms after the reset has been deasserted. Set the matching
values in the devicetree.

Reported-by: Heiko Thiery <heiko.thiery@xxxxxxxxx>
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
index 0e4509287a92..106e13945ae5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts
@@ -124,8 +124,8 @@ mdio {

ethphy: ethernet-phy@0 {
reg = <0>;
- reset-assert-us = <100>;
- reset-deassert-us = <100>;
+ reset-assert-us = <1>;
+ reset-deassert-us = <15000>;
reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
};
};
--
2.33.0