[PATCH v2 19/19] ARM: dts: imx6ul-prti6g: configure ethernet reference clock parent

From: Oleksij Rempel
Date: Tue Jan 17 2023 - 01:17:33 EST


On this board the PHY is the ref clock provider. So, configure ethernet
reference clock as input.

Without this patch we have relatively high amount of dropped packets.

Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/imx6ul-prti6g.dts | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/imx6ul-prti6g.dts b/arch/arm/boot/dts/imx6ul-prti6g.dts
index c18390f238e1..b7c96fbe7a91 100644
--- a/arch/arm/boot/dts/imx6ul-prti6g.dts
+++ b/arch/arm/boot/dts/imx6ul-prti6g.dts
@@ -26,6 +26,7 @@ clock_ksz8081_out: clock-ksz8081-out {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <50000000>;
+ clock-output-names = "enet1_ref_pad";
};

leds {
@@ -60,6 +61,13 @@ &can2 {
status = "okay";
};

+&clks {
+ clocks = <&ckil>, <&osc>, <&ipp_di0>, <&ipp_di1>, <&clock_ksz8081_out>;
+ clock-names = "ckil", "osc", "ipp_di0", "ipp_di1", "enet1_ref_pad";
+ assigned-clocks = <&clks IMX6UL_CLK_ENET1_REF_SEL>;
+ assigned-clock-parents = <&clock_ksz8081_out>;
+};
+
&ecspi1 {
cs-gpios = <&gpio4 26 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
@@ -85,12 +93,6 @@ &fec1 {
pinctrl-0 = <&pinctrl_eth1>;
phy-mode = "rmii";
phy-handle = <&rmii_phy>;
- clocks = <&clks IMX6UL_CLK_ENET>,
- <&clks IMX6UL_CLK_ENET_AHB>,
- <&clks IMX6UL_CLK_ENET_PTP>,
- <&clock_ksz8081_out>;
- clock-names = "ipg", "ahb", "ptp",
- "enet_clk_ref";
status = "okay";

mdio {
--
2.30.2