[openwrt/openwrt] bcm4908: backport DT patch adding Ethernet MAC address

[LEDE Commits]

rmilecki pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/1cc5eb45d5192b41d97d5da58c34353f4c3240f9

commit 1cc5eb45d5192b41d97d5da58c34353f4c3240f9
Author: Rafał Miłecki <rafal at milecki.pl>
AuthorDate: Wed Mar 31 23:14:24 2021 +0200

    bcm4908: backport DT patch adding Ethernet MAC address
    
    This tells OS (Linux) where from MAC should be read (bootloader MTD
    partition).
    
    Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 ...ts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)

diff --git a/target/linux/bcm4908/patches-5.4/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch b/target/linux/bcm4908/patches-5.4/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch
new file mode 100644
index 0000000000..67f30c8213
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/032-v5.13-0011-arm64-dts-broadcom-bcm4908-add-Ethernet-MAC-addr.patch
@@ -0,0 +1,82 @@
+From 9f01f5cdb548352418b34ce77db02a560fe2913b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal at milecki.pl>
+Date: Mon, 29 Mar 2021 17:45:14 +0200
+Subject: [PATCH] arm64: dts: broadcom: bcm4908: add Ethernet MAC addr
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+On most BCM4908 devices MAC address can be read from the bootloader
+binary section containing device settings. Use NVMEM to describe that.
+
+Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
+Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
+---
+ .../broadcom/bcm4908/bcm4906-netgear-r8000p.dts    | 14 ++++++++++++++
+ .../broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts    | 14 ++++++++++++++
+ 2 files changed, 28 insertions(+)
+
+--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
+@@ -74,6 +74,11 @@
+ 	};
+ };
+ 
++&enet {
++	nvmem-cells = <&base_mac_addr>;
++	nvmem-cell-names = "mac-address";
++};
++
+ &usb_phy {
+ 	brcm,ioc = <1>;
+ 	status = "okay";
+@@ -130,8 +135,17 @@
+ 		#size-cells = <1>;
+ 
+ 		partition at 0 {
++			compatible = "nvmem-cells";
+ 			label = "cferom";
+ 			reg = <0x0 0x100000>;
++
++			#address-cells = <1>;
++			#size-cells = <1>;
++			ranges = <0 0x0 0x100000>;
++
++			base_mac_addr: mac at 106a0 {
++				reg = <0x106a0 0x6>;
++			};
+ 		};
+ 
+ 		partition at 100000 {
+--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
+@@ -44,6 +44,11 @@
+ 	};
+ };
+ 
++&enet {
++	nvmem-cells = <&base_mac_addr>;
++	nvmem-cell-names = "mac-address";
++};
++
+ &usb_phy {
+ 	brcm,ioc = <1>;
+ 	status = "okay";
+@@ -128,8 +133,17 @@
+ 		#size-cells = <1>;
+ 
+ 		partition at 0 {
++			compatible = "nvmem-cells";
+ 			label = "cferom";
+ 			reg = <0x0 0x100000>;
++
++			#address-cells = <1>;
++			#size-cells = <1>;
++			ranges = <0 0x0 0x100000>;
++
++			base_mac_addr: mac at 106a0 {
++				reg = <0x106a0 0x6>;
++			};
+ 		};
+ 
+ 		partition at 100000 {