[PATCH] ath79: engenius,eXXX: fix MAC assignment

Tomasz Maciej Nowak tmn505 at terefe.re
Mon Mar 16 12:33:12 PDT 2026


From: Tomasz Maciej Nowak <tmn505 at gmail.com>

Partially revert d6d90566d1cd. Unfortunately the ethaddr value in U-Boot
environment is enclosed in double quotes which makes it longer than
ETH_ALEN, thus nvmem returns EINVAL. Switch back to handling the MAC
addresses in user space.

Fixes: d6d90566d1cd ("ath79: engenius,eXXX: use nvmem")
Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>
---
 target/linux/ath79/dts/qca9557_engenius_esr1200.dts |  8 ++++----
 target/linux/ath79/dts/qca9558_engenius_epg5000.dts |  8 ++++----
 target/linux/ath79/dts/qca9558_engenius_esr1750.dts |  8 ++++----
 target/linux/ath79/dts/qca9558_engenius_esr900.dts  |  8 ++++----
 .../linux/ath79/dts/qca955x_senao_router-dual.dtsi  | 13 -------------
 .../ath79/generic/base-files/etc/board.d/02_network |  1 +
 .../etc/hotplug.d/ieee80211/10_fix_wifi_mac         |  9 +++++++++
 .../base-files/lib/preinit/10_fix_eth_mac.sh        |  6 ++++++
 8 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/target/linux/ath79/dts/qca9557_engenius_esr1200.dts b/target/linux/ath79/dts/qca9557_engenius_esr1200.dts
index 5faf3277fab7..23dd0523354b 100644
--- a/target/linux/ath79/dts/qca9557_engenius_esr1200.dts
+++ b/target/linux/ath79/dts/qca9557_engenius_esr1200.dts
@@ -80,13 +80,13 @@
 };
 
 &wmac {
-	nvmem-cells = <&calibration_art_1000>, <&macaddr_uboot_eth 1>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_1000>;
+	nvmem-cell-names = "calibration";
 };
 
 &wifi0 {
 	compatible = "qcom,ath10k";
 
-	nvmem-cells = <&calibration_art_5000>, <&macaddr_uboot_eth 0>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_5000>;
+	nvmem-cell-names = "calibration";
 };
diff --git a/target/linux/ath79/dts/qca9558_engenius_epg5000.dts b/target/linux/ath79/dts/qca9558_engenius_epg5000.dts
index 560436b0df9b..1ad6d0f8dd10 100644
--- a/target/linux/ath79/dts/qca9558_engenius_epg5000.dts
+++ b/target/linux/ath79/dts/qca9558_engenius_epg5000.dts
@@ -80,13 +80,13 @@
 };
 
 &wmac {
-	nvmem-cells = <&calibration_art_1000>, <&macaddr_uboot_eth 1>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_1000>;
+	nvmem-cell-names = "calibration";
 };
 
 &wifi0 {
 	compatible = "qcom,ath10k";
 
-	nvmem-cells = <&calibration_art_5000>, <&macaddr_uboot_eth 0>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_5000>;
+	nvmem-cell-names = "calibration";
 };
diff --git a/target/linux/ath79/dts/qca9558_engenius_esr1750.dts b/target/linux/ath79/dts/qca9558_engenius_esr1750.dts
index 52075d248133..adb6ba3dd245 100644
--- a/target/linux/ath79/dts/qca9558_engenius_esr1750.dts
+++ b/target/linux/ath79/dts/qca9558_engenius_esr1750.dts
@@ -80,13 +80,13 @@
 };
 
 &wmac {
-	nvmem-cells = <&calibration_art_1000>, <&macaddr_uboot_eth 1>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_1000>;
+	nvmem-cell-names = "calibration";
 };
 
 &wifi0 {
 	compatible = "qcom,ath10k";
 
-	nvmem-cells = <&calibration_art_5000>, <&macaddr_uboot_eth 0>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_5000>;
+	nvmem-cell-names = "calibration";
 };
diff --git a/target/linux/ath79/dts/qca9558_engenius_esr900.dts b/target/linux/ath79/dts/qca9558_engenius_esr900.dts
index 9ceacb0199b0..c8f37645a4e4 100644
--- a/target/linux/ath79/dts/qca9558_engenius_esr900.dts
+++ b/target/linux/ath79/dts/qca9558_engenius_esr900.dts
@@ -80,13 +80,13 @@
 };
 
 &wmac {
-	nvmem-cells = <&calibration_art_1000>, <&macaddr_uboot_eth 0>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_1000>;
+	nvmem-cell-names = "calibration";
 };
 
 &wifi0 {
 	compatible = "pci168c,0033";
 
-	nvmem-cells = <&calibration_art_5000>, <&macaddr_uboot_eth 1>;
-	nvmem-cell-names = "calibration", "mac-address";
+	nvmem-cells = <&calibration_art_5000>;
+	nvmem-cell-names = "calibration";
 };
diff --git a/target/linux/ath79/dts/qca955x_senao_router-dual.dtsi b/target/linux/ath79/dts/qca955x_senao_router-dual.dtsi
index b8680772ce11..d6f2ebf56ffc 100644
--- a/target/linux/ath79/dts/qca955x_senao_router-dual.dtsi
+++ b/target/linux/ath79/dts/qca955x_senao_router-dual.dtsi
@@ -30,9 +30,6 @@
 
 	phy-handle = <&phy0>;
 	pll-data = <0xa6000000 0x00000101 0x00001616>;
-
-	nvmem-cells = <&macaddr_uboot_eth 0>;
-	nvmem-cell-names = "mac-address";
 };
 
 &mdio0 {
@@ -74,16 +71,6 @@
 				label = "u-boot-env";
 				reg = <0x030000 0x010000>;
 				read-only;
-
-				nvmem-layout {
-					compatible = "u-boot,env";
-					#address-cells = <1>;
-					#size-cells = <1>;
-
-					macaddr_uboot_eth: ethaddr {
-						#nvmem-cell-cells = <1>;
-					};
-				};
 			};
 
 			partition at 40000 {
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 1d5ddc605c43..f409c1c89739 100644
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -735,6 +735,7 @@ ath79_setup_macs()
 	engenius,esr1200|\
 	engenius,esr1750|\
 	engenius,esr900)
+		lan_mac=$(mtd_get_mac_ascii u-boot-env ethaddr)
 		wan_mac=$(mtd_get_mac_ascii u-boot-env wanaddr)
 		;;
 	hak5,lan-turtle|\
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ath79/generic/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index 0ef322e898ec..d8a92f227cef 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -93,6 +93,15 @@ case "$board" in
 		[ "$PHYNBR" -eq 1 ] && \
 			mtd_get_mac_ascii devdata wlan24mac > /sys${DEVPATH}/macaddress
 		;;
+	engenius,epg5000|\
+	engenius,esr1200|\
+	engenius,esr1750|\
+	engenius,esr900)
+		[ "$PHYNBR" -eq 0 ] && \
+			macaddr_add "$(mtd_get_mac_ascii u-boot-env ethaddr)" 1 > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" -eq 1 ] && \
+			macaddr_add "$(mtd_get_mac_ascii u-boot-env ethaddr)" 0 > /sys${DEVPATH}/macaddress
+		;;
 	phicomm,k2t)
 		[ "$PHYNBR" -eq 0 ] && \
 			k2t_get_mac "5g_mac" > /sys${DEVPATH}/macaddress
diff --git a/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh b/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh
index 1126a1eefc02..4b6cb7b6ede0 100644
--- a/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh
+++ b/target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh
@@ -12,6 +12,12 @@ preinit_set_mac_address() {
 		ip link set dev eth0 address $(mtd_get_mac_ascii bdcfg "lanmac")
 		ip link set dev eth1 address $(mtd_get_mac_ascii bdcfg "wanmac")
 		;;
+	engenius,epg5000|\
+	engenius,esr1200|\
+	engenius,esr1750|\
+	engenius,esr900)
+		ip link set dev eth0 address $(mtd_get_mac_ascii u-boot-env ethaddr)
+		;;
 	siemens,ws-ap3610)
 		ip link set dev eth0 address $(mtd_get_mac_ascii cfg1 ethaddr)
 		;;
-- 
2.53.0




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