openwrt/target/linux/bcm53xx/patches-5.15/032-v5.18-0002-ARM-dts-NSP-MX6X-get-mac-address-from-eeprom.patch

From 66848aff05f669e95795b5f3a163f4762781333e Mon Sep 17 00:00:00 2001
From: Matthew Hagan <[email protected]>
Date: Wed, 23 Feb 2022 23:50:39 +0000
Subject: [PATCH] ARM: dts: NSP: MX6X: get mac-address from eeprom

The MAC address on the MX64/MX65 series is located on the AT24 EEPROM.
This is the same as other Meraki devices such as the MR32 [1].

[1] https://lore.kernel.org/linux-arm-kernel/fa8271d02ef74a687f365cebe5c55ec846963ab7.1631986106.git.chunkeey@gmail.com/

Signed-off-by: Matthew Hagan <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
---
 arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

--- a/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi
+++ b/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi
@@ -39,6 +39,8 @@
 
 &amac2 {
 	status = "okay";
+	nvmem-cells = <&mac_address>;
+	nvmem-cell-names = "mac-address";
 };
 
 &ehci0 {
@@ -53,6 +55,12 @@
 		reg = <0x50>;
 		pagesize = <32>;
 		read-only;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		mac_address: mac-address@66 {
+			reg = <0x66 0x6>;
+		};
 	};
 };