[PATCH 2/9] arm64: zynqmp-dlc21-revA: add mac nvmem cell for gem0

[Michal Simek]

From: Trapti Damodar Balgi <traptidamodar.balgi at amd.com>

Enable nvmem support for MAC address retrieval from EEPROM for
ethernet at ff0b0000.
Add nvmem-cells and nvmem-cell-names to the GEM0 node, and define a
mac-address at 20 cell under the EEPROM node on I2C0.

This allows U-Boot to read the MAC address from EEPROM at offset 0x20.

Signed-off-by: Trapti Damodar Balgi <traptidamodar.balgi at amd.com>
Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 arch/arm/dts/zynqmp-dlc21-revA.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/dts/zynqmp-dlc21-revA.dts b/arch/arm/dts/zynqmp-dlc21-revA.dts
index 25cd0a09c944..83c39ce1a265 100644
--- a/arch/arm/dts/zynqmp-dlc21-revA.dts
+++ b/arch/arm/dts/zynqmp-dlc21-revA.dts
@@ -90,6 +90,9 @@
 	status = "okay";
 	phy-handle = <&phy0>;
 	phy-mode = "sgmii"; /* DTG generates this properly  1512 */
+	nvmem-cells = <&eth_mac>;
+	nvmem-cell-names = "mac-address";
+
 	mdio: mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -153,6 +156,12 @@
 	eeprom: eeprom at 50 { /* u46 */
 		compatible = "atmel,24c32";
 		reg = <0x50>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		eth_mac: mac-address at 20 {
+			reg = <0x20 0x6>;
+		};
 	};
 	/* u138 - TUSB320IRWBR - for USB-C */
 };
-- 
2.43.0