[PATCH] ARM: dts: BCM5301X: R8000 add NVRAM with MAC address for WAN port
From: Rosen Penev <hidden>
Date: 2026-07-25 21:56:38
Also in:
linux-devicetree, lkml
Subsystem:
broadcom bcm5301x arm architecture, the rest · Maintainers:
Florian Fainelli, Hauke Mehrtens, Rafał Miłecki, Linus Torvalds
The R8000 stores the WAN MAC address at a fixed offset in NVRAM. Define the NVRAM region and attach nvmem-cells to the WAN port so the MAC is assigned automatically by the DSA framework. Assisted-by: opencode:big-pickle Signed-off-by: Rosen Penev <redacted> --- arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts
index e85693fba16a..a4b135d37659 100644
--- a/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts
+++ b/arch/arm/boot/dts/broadcom/bcm4709-netgear-r8000.dts@@ -36,6 +36,15 @@ memory@0 { <0x88000000 0x08000000>; }; + nvram@1c080000 { + compatible = "brcm,nvram"; + reg = <0x1c080000 0x180000>; + + et2macaddr: et2macaddr { + #nvmem-cell-cells = <1>; + }; + }; + leds { compatible = "gpio-leds";
@@ -211,6 +220,9 @@ port@3 { port@4 { label = "wan"; + + nvmem-cells = <&et2macaddr 1>; + nvmem-cell-names = "mac-address"; }; port@5 {
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2.55.0