Without this change the KSZ9477 Evaluation board's Linux (v6.5-rc1) shows
following device warning:
'ksz-switch spi1.0: Port 5 interpreting RGMII delay settings based on "phy-mode" property, please update device tree to specify "rx-internal-delay-ps" and "tx-internal-delay-ps"'
This is not critical, as KSZ driver by itself assigns default value of
tx delay to 2000 ps (as 'rgmii-txid' is set as PHY mode).
However, to avoid extra warnings in logs - the missing 'tx-internal-delay-ps'
has been specified with the default value of 2000 ps.
Signed-off-by: Lukasz Majewski <lukma@xxxxxxx>
---
arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts b/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
index 99cd6d15998b..b66570080894 100644
--- a/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
@@ -152,6 +152,7 @@
label = "cpu";
ethernet = <&macb0>;
phy-mode = "rgmii-txid";
+ tx-internal-delay-ps = <2000>;
fixed-link {
speed = <1000>;
--
2.20.1
