[PATCH 1/1] riscv: dts: spacemit: set ETH MAC from eeprom for OrangePi

From: Chukun Pan

Date: Sun Sep 20 2026 - 06:01:24 EST


The EEPROM on the OrangePi R2S and OrangePi RV2 stores the MAC address.
Assign it to Ethernet, with eth1 having a MAC offset of 1. Remove the
Ethernet alias to avoid U-Boot patching incorrect MAC addresses.

Signed-off-by: Chukun Pan <amadeus@xxxxxxxxxx>
---
arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts | 8 +++++---
arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 8 +++++---
2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 7125f2882ce8..073cc975135f 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -16,8 +16,6 @@ aliases {
i2c2 = &i2c2;
i2c8 = &i2c8;
serial0 = &uart0;
- ethernet0 = &eth0;
- ethernet1 = &eth1;
};

chosen {
@@ -66,6 +64,8 @@ &emmc {
};

&eth0 {
+ nvmem-cells = <&mac_address 0>;
+ nvmem-cell-names = "mac-address";
phy-handle = <&rgmii0>;
phy-mode = "rgmii-id";
pinctrl-names = "default";
@@ -90,6 +90,8 @@ rgmii0: phy@1 {
};

&eth1 {
+ nvmem-cells = <&mac_address 1>;
+ nvmem-cell-names = "mac-address";
phy-handle = <&rgmii1>;
phy-mode = "rgmii-id";
pinctrl-names = "default";
@@ -129,7 +131,7 @@ eeprom@50 {
nvmem-layout {
compatible = "onie,tlv-layout";

- mac-address {
+ mac_address: mac-address {
#nvmem-cell-cells = <1>;
};

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
index 837616255464..609c4755775d 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -15,8 +15,6 @@ / {

aliases {
serial0 = &uart0;
- ethernet0 = &eth0;
- ethernet1 = &eth1;
i2c2 = &i2c2;
i2c8 = &i2c8;
mmc0 = &emmc;
@@ -93,6 +91,8 @@ &emmc {
};

&eth0 {
+ nvmem-cells = <&mac_address 0>;
+ nvmem-cell-names = "mac-address";
phy-handle = <&rgmii0>;
phy-mode = "rgmii-id";
pinctrl-names = "default";
@@ -117,6 +117,8 @@ rgmii0: phy@1 {
};

&eth1 {
+ nvmem-cells = <&mac_address 1>;
+ nvmem-cell-names = "mac-address";
phy-handle = <&rgmii1>;
phy-mode = "rgmii-id";
pinctrl-names = "default";
@@ -156,7 +158,7 @@ eeprom@50 {
nvmem-layout {
compatible = "onie,tlv-layout";

- mac-address {
+ mac_address: mac-address {
#nvmem-cell-cells = <1>;
};

--
2.34.1