commit 2ae1267342a28aa7fa9cdf8303d81d87acf05bce
author Hugo Villeneuve <hvilleneuve@dimonoff.com> Thu May 25 17:02:28 2023 -0400
committer Stefano Babic <sbabic@denx.de> Tue Jul 11 14:40:04 2023 +0200
tree f76bcb227d6123716127dc64575712fcf9a77bc5
parent 89bd008da43e50155d940bd02922bd87103d509f

imx8mn-var-som: read eth MAC address from EEPROM

Read ethernet MAC address from EEPROM located on the SOM.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>

arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi

diff --git a/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi b/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi
index 7272fc2..e0caf31 100644
--- a/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi
+++ b/arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi
@@ -13,6 +13,19 @@
 	bootph-pre-ram;
 };
 
+&eeprom_som {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	eth_mac_address: eth-mac-address@19 {
+		reg = <0x19 0x06>;
+	};
+};
+
+&fec1 {
+	nvmem-cells = <&eth_mac_address>;
+	nvmem-cell-names = "mac-address";
+};
+
 &gpio1 {
 	bootph-pre-ram;
 };

arch/arm/mach-imx/imx8m/Kconfig

diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index a940d8a..67db3e4 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -248,6 +248,7 @@
 	select MISC
 	select I2C_EEPROM
 	select DM_ETH_PHY
+	select NVMEM
 
 config TARGET_KONTRON_PITX_IMX8M
 	bool "Support Kontron pITX-imx8m"