From: Daniel Golle <daniel@makrotopia.org>
Date: Sat, 20 Sep 2025 11:56:42 +0000 (+0100)
Subject: arm64: dts: mediatek: mt7622: add 'soc-uuid' cell to efuse
X-Git-Tag: v6.19-rc1~100^2~28^2~20
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79fb9654a2eeea8e973f6d329ccf68221703ec59;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: mediatek: mt7622: add 'soc-uuid' cell to efuse

The efuse of the MediaTek MT7622 contains an 8-byte unique identifier.
Add a 'soc-uuid' cell covering those 8 bytes to the nvmem defininition
of the efuse to allow easy access from userspace, eg. to generate a
persistent random MAC address on boards like the BananaPi R64 which
doesn't have any factory-assigned addresses.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 917fa39a74f8d..158bd9a305d70 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -278,6 +278,10 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 
+		soc-uuid@140 {
+			reg = <0x140 0x8>;
+		};
+
 		thermal_calibration: calib@198 {
 			reg = <0x198 0xc>;
 		};