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imx8m{m,n}-venice-gw7902: add support for GPY111 phy

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The TI DP83867 phy has been replaced with the MaxLinear GPY111 phy
due to part availability. Add support for it:
 - increase post-reset time to 300ms per datasheet
 - add tx-delay/rx-delay config

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey 2022-04-13 09:09:49 -07:00 committed by Stefano Babic
parent 7a2ff55d87
commit 53a2b6bd5d
4 changed files with 10 additions and 2 deletions
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2
arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi
View file

@ -158,7 +158,7 @@
&fec1 {
phy-reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
phy-reset-duration = <1>;
phy-reset-post-delay = <1>;
phy-reset-post-delay = <300>;
};
&pinctrl_fec1 {

4
arch/arm/dts/imx8mm-venice-gw7902.dts
View file

@ -243,10 +243,14 @@
ethphy0: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
/* TI DP83867 props */
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
/* GPY111 props */
rx-internal-delay-ps = <2000>;
tx-internal-delay-ps = <2500>;
};
};
};

2
arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi
View file

@ -116,7 +116,7 @@
&fec1 {
phy-reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
phy-reset-duration = <1>;
phy-reset-post-delay = <1>;
phy-reset-post-delay = <300>;
};
&pinctrl_fec1 {

4
arch/arm/dts/imx8mn-venice-gw7902.dts
View file

@ -242,10 +242,14 @@
ethphy0: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
/* TI DP83867 props */
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
/* GPY111 props */
rx-internal-delay-ps = <2000>;
tx-internal-delay-ps = <2500>;
};
};
};