[PATCH 2/2] ARM: dts: NSP: MX6X: get mac-address from eeprom

Matthew Hagan mnhagan88 at gmail.com
Sat Sep 25 04:36:28 PDT 2021


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 <mnhagan88 at gmail.com>
---
 arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi b/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi
index 6519b7c61af1..5de727de6a4b 100644
--- a/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi
+++ b/arch/arm/boot/dts/bcm958625-meraki-mx6x-common.dtsi
@@ -39,6 +39,8 @@ led-3 {
 
 &amac2 {
 	status = "okay";
+	nvmem-cells = <&mac_address>;
+	nvmem-cell-names = "mac-address";
 };
 
 &ehci0 {
@@ -53,6 +55,12 @@ eeprom at 50 {
 		reg = <0x50>;
 		pagesize = <32>;
 		read-only;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		mac_address: mac-address at 66 {
+			reg = <0x66 0x6>;
+		};
 	};
 };
 
-- 
2.27.0




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