[PATCH 4/5] imx8mn-var-som: read eth MAC address from EEPROM

[Hugo Villeneuve]

From: Hugo Villeneuve <hvilleneuve at dimonoff.com>

Read ethernet MAC address from EEPROM located on the SOM.

Signed-off-by: Hugo Villeneuve <hvilleneuve at dimonoff.com>
---
 arch/arm/dts/imx8mn-var-som-symphony-u-boot.dtsi | 13 +++++++++++++
 arch/arm/mach-imx/imx8m/Kconfig                  |  1 +
 2 files changed, 14 insertions(+)

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 7272fc2b4c..e0caf3179e 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 at 19 {
+		reg = <0x19 0x06>;
+	};
+};
+
+&fec1 {
+	nvmem-cells = <&eth_mac_address>;
+	nvmem-cell-names = "mac-address";
+};
+
 &gpio1 {
 	bootph-pre-ram;
 };
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 94f4d584f1..7e5a3e31dd 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -242,6 +242,7 @@ config TARGET_IMX8MN_VAR_SOM
 	select MISC
 	select I2C_EEPROM
 	select DM_ETH_PHY
+	select NVMEM
 
 config TARGET_KONTRON_PITX_IMX8M
 	bool "Support Kontron pITX-imx8m"
-- 
2.30.2