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

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>

diff --git a/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi
index 1e1769f..f21e46b 100644 (file)
--- a/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi
@@ -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 {

diff --git a/arch/arm/dts/imx8mm-venice-gw7902.dts b/arch/arm/dts/imx8mm-venice-gw7902.dts
index adf5216..b0404ec 100644 (file)
--- a/arch/arm/dts/imx8mm-venice-gw7902.dts
+++ b/arch/arm/dts/imx8mm-venice-gw7902.dts
@@ -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>;
                };
        };
 };

diff --git a/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi b/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi
index 9431e2a..17e6828 100644 (file)
--- a/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi
+++ b/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi
@@ -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 {

diff --git a/arch/arm/dts/imx8mn-venice-gw7902.dts b/arch/arm/dts/imx8mn-venice-gw7902.dts
index 29897c1..d026d96 100644 (file)
--- a/arch/arm/dts/imx8mn-venice-gw7902.dts
+++ b/arch/arm/dts/imx8mn-venice-gw7902.dts
@@ -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>;
                };
        };
 };