[PATCH 2/2] ARM: imx: Update Fast ethernet PHY MDIO addresses to match DH i.MX8MP DHCOM rev.200

Marek Vasut marex at denx.de
Thu Jun 27 02:13:16 CEST 2024


The production DH i.MX8MP DHCOM SoM rev.200 uses updated PHY MDIO addresses
for the Fast ethernet PHYs. Update the base SoM DT and SoM rev.100 backward
compatibility DTO to cater for this change.

Since the MDIO address adjustment is now also in the rev.100 SoM DTO, not
only in the rev.100 PDK3 DTO, update Makefile accordingly as well, else the
DTC would complain about the DTO overriding the 'reg' property without also
updating the node unit-address, which is not doable without duplicating the
entire PHY node in the DTO, which leads to large amount of duplication with
no gain.

Fixes: 9de599ec3d59 ("arm64: dts: imx8mp: Update i.MX8MP DHCOM SoM DT to production rev.200")
Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: "NXP i.MX U-Boot Team" <uboot-imx at nxp.com>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: u-boot at dh-electronics.com
Cc: u-boot at lists.denx.de
---
 arch/arm/dts/Makefile                            | 1 +
 arch/arm/dts/imx8mp-dhcom-som-overlay-rev100.dts | 5 +++++
 arch/arm/dts/imx8mp-dhcom-som.dtsi               | 8 ++++----
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 06c234afbeb..e49e9aa3e15 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1291,6 +1291,7 @@ targets += $(dtb-y)
 # Add any required device tree compiler flags here
 DTC_FLAGS += -a 0x8
 
+DTC_FLAGS_imx8mp-dhcom-som-overlay-rev100 += -Wno-avoid_default_addr_size -Wno-reg_format
 DTC_FLAGS_imx8mp-dhcom-pdk3-overlay-rev100 += -Wno-avoid_default_addr_size -Wno-reg_format
 
 PHONY += dtbs
diff --git a/arch/arm/dts/imx8mp-dhcom-som-overlay-rev100.dts b/arch/arm/dts/imx8mp-dhcom-som-overlay-rev100.dts
index 0e5d329b149..b2154d57e48 100644
--- a/arch/arm/dts/imx8mp-dhcom-som-overlay-rev100.dts
+++ b/arch/arm/dts/imx8mp-dhcom-som-overlay-rev100.dts
@@ -35,6 +35,7 @@
 &ethphy0f { /* SMSC LAN8740Ai */
 	pinctrl-0 = <&pinctrl_ethphy0 &pinctrl_ioexp>;
 	reset-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
+	reg = <0>;
 };
 
 &ethphy0g { /* Micrel KSZ9131RNXI */
@@ -42,6 +43,10 @@
 	reset-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
 };
 
+&ethphy1f { /* SMSC LAN8740Ai */
+	reg = <1>;
+};
+
 &i2c3 {
 	adc at 48 {
 		compatible = "ti,tla2024";
diff --git a/arch/arm/dts/imx8mp-dhcom-som.dtsi b/arch/arm/dts/imx8mp-dhcom-som.dtsi
index b504d36818b..f2d99d05854 100644
--- a/arch/arm/dts/imx8mp-dhcom-som.dtsi
+++ b/arch/arm/dts/imx8mp-dhcom-som.dtsi
@@ -100,14 +100,14 @@
 		#size-cells = <0>;
 
 		/* Up to one of these two PHYs may be populated. */
-		ethphy0f: ethernet-phy at 0 { /* SMSC LAN8740Ai */
+		ethphy0f: ethernet-phy at 1 { /* SMSC LAN8740Ai */
 			compatible = "ethernet-phy-id0007.c110",
 				     "ethernet-phy-ieee802.3-c22";
 			interrupt-parent = <&gpio3>;
 			interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
 			pinctrl-0 = <&pinctrl_ethphy0>;
 			pinctrl-names = "default";
-			reg = <0>;
+			reg = <1>;
 			reset-assert-us = <1000>;
 			reset-deassert-us = <1000>;
 			reset-gpios = <&ioexp 4 GPIO_ACTIVE_LOW>;
@@ -146,14 +146,14 @@
 		#size-cells = <0>;
 
 		/* Up to one PHY may be populated. */
-		ethphy1f: ethernet-phy at 1 { /* SMSC LAN8740Ai */
+		ethphy1f: ethernet-phy at 2 { /* SMSC LAN8740Ai */
 			compatible = "ethernet-phy-id0007.c110",
 				     "ethernet-phy-ieee802.3-c22";
 			interrupt-parent = <&gpio4>;
 			interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 			pinctrl-0 = <&pinctrl_ethphy1>;
 			pinctrl-names = "default";
-			reg = <1>;
+			reg = <2>;
 			reset-assert-us = <1000>;
 			reset-deassert-us = <1000>;
 			reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
-- 
2.43.0



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