From 53a2b6bd5d3e2b4a3d54f9715c50f492c155cb87 Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Wed, 13 Apr 2022 09:09:49 -0700
Subject: [PATCH] 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>
---
arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi | 2 +-
arch/arm/dts/imx8mm-venice-gw7902.dts | 4 ++++
arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi | 2 +-
arch/arm/dts/imx8mn-venice-gw7902.dts | 4 ++++
4 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi
index 1e1769f551..f21e46b12d 100644
--- 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 adf521632d..b0404ec4c8 100644
--- 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 9431e2a6cd..17e6828c79 100644
--- 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 29897c161b..d026d96558 100644
--- 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>;
};
};
};
--
2.39.5