Hi
On Mon, Dec 30, 2019 at 1:04 PM Jagan Teki jagan@amarulasolutions.com wrote:
From: Michael Trimarchi michael@amarulasolutions.com
LAN8720 needs a reset of every clock enable. The reset needs to be done at device level, due the flag PHY_RST_AFTER_CLK_EN.
So, add phy-handle by creating mdio child node inside fec. This will eventually move the phy-reset-gpio which is defined in fec node.
Signed-off-by: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Jagan Teki jagan@amarulasolutions.com
arch/arm/dts/imx6qdl-icore.dtsi | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/imx6qdl-icore.dtsi b/arch/arm/dts/imx6qdl-icore.dtsi index 7814f1ef08..756f3a9f1b 100644 --- a/arch/arm/dts/imx6qdl-icore.dtsi +++ b/arch/arm/dts/imx6qdl-icore.dtsi @@ -150,10 +150,23 @@ &fec { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enet>;
phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>; clocks = <&clks IMX6QDL_CLK_ENET>, <&clks IMX6QDL_CLK_ENET>, <&rmii_clk>; phy-mode = "rmii";
phy-handle = <ð_phy>; status = "okay";mdio {#address-cells = <1>;#size-cells = <0>;eth_phy: ethernet-phy@0 {compatible = "ethernet-phy-ieee802.3-c22";reg = <0>;reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;reset-assert-us = <4000>;reset-deassert-us = <4000>;};};};
This work in linux but not in uboot. I don't think that we have this kind of connection.
Michael
&gpmi {
2.18.0.321.gffc6fa0e3