arm64: dts: mediatek: mt7988a: add 'soc-uuid' cell to efuse

The efuse of the MediaTek MT7988 contains a 16-byte unique identifier.
Add a 'soc-uuid' cell covering those 16 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 R4 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/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index 366203a72d6d20f754e18eb985eda009c413ce79..93c9f8c3f223ea4e1bc3bf9230415c01d1b24941 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -714,6 +714,10 @@
                        #address-cells = <1>;
                        #size-cells = <1>;
 
+                       soc-uuid@140 {
+                               reg = <0x140 0x10>;
+                       };
+
                        lvts_calibration: calib@918 {
                                reg = <0x918 0x28>;
                        };