From: Chris Healy <cphealy@gmail.com>
Date: Wed, 8 Jul 2020 01:00:05 +0000 (-0700)
Subject: arm64: dts: zii-ultra: update MDIO speed and preamble
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=67dd4954d247e0300cd760fbd7478e5d919899a2;p=linux.git

arm64: dts: zii-ultra: update MDIO speed and preamble

Update MDIO configuration with zii-ultra device to fully utilize
MDIO endpoint capabilities.  Device supports 12.5MHz clock and
doesn't require MDIO preamble.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index 6a55165bd76ac..0d1088dcaa022 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -131,6 +131,8 @@
 	mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		clock-frequency = <12500000>;
+		suppress-preamble;
 		status = "okay";
 
 		switch: switch@0 {