[openwrt/openwrt] ath79: fix MAC address assignment for TP-Link ar7241 devices

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/d25e1a3bde68dadaa480e3c9ee7cc767e03a4170

commit d25e1a3bde68dadaa480e3c9ee7cc767e03a4170
Author: Will Moss <willormos at gmail.com>
AuthorDate: Wed Aug 3 11:37:47 2022 +0000

    ath79: fix MAC address assignment for TP-Link ar7241 devices
    
    On TP-Link ar7241 devices LAN and WAN interfaces are swapped. Keeping
    that in mind fix MAC address assignment as used in vendor firmware:
    LAN MAC - main MAC stored in u-boot and printed on label
    WAN MAC - LAN MAC + 1
    
    Signed-off-by: Will Moss <willormos at gmail.com>
    (cherry picked from commit 5a1af6ed621d4547d8bf486d0d3e4de5443b9b58)
---
 target/linux/ath79/dts/ar7241_tplink.dtsi | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/target/linux/ath79/dts/ar7241_tplink.dtsi b/target/linux/ath79/dts/ar7241_tplink.dtsi
index 84a9a4f63d..0861cc6232 100644
--- a/target/linux/ath79/dts/ar7241_tplink.dtsi
+++ b/target/linux/ath79/dts/ar7241_tplink.dtsi
@@ -94,18 +94,17 @@
 	};
 };
 
-&eth0 {
+&eth0 {		/* WAN interface, initialized last as eth1 */
 	status = "okay";
 
 	nvmem-cells = <&macaddr_uboot_1fc00>;
 	nvmem-cell-names = "mac-address";
-	mac-address-increment = <(-1)>;
+	mac-address-increment = <1>;
 };
 
-&eth1 {
+&eth1 {		/* LAN interface, initialized first as eth0 */
 	nvmem-cells = <&macaddr_uboot_1fc00>;
 	nvmem-cell-names = "mac-address";
-	mac-address-increment = <1>;
 };
 
 &uboot {