[PATCH 1/2] ARM: dts: meson8b: add the nvmem cell with the board's MAC address

Martin Blumenstingl martin.blumenstingl at googlemail.com
Sat Jul 27 12:46:46 PDT 2019


Amlogic's BSP kernel defines that all boards with a MAC address stored
in the eFuse have it at offset 0x1b4. It is up to the board to
decide whether to use this MAC address or not:
- Odroid-C1 uses the MAC address from the eFuse
- EC-100 seems to read the MAC address from eMMC

Add the nvmem cell which describes the Ethernet MAC address. Don't
assign it to the Ethernet controller, because depending on the board the
actual MAC address may be read from somewhere else.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
---
 arch/arm/boot/dts/meson8b.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 30fca9bb4bbe..c7de58b71d08 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -402,6 +402,10 @@
 	clocks = <&clkc CLKID_EFUSE>;
 	clock-names = "core";
 
+	ethernet_mac_address: mac at 1b4 {
+		reg = <0x1b4 0x6>;
+	};
+
 	temperature_calib: calib at 1f4 {
 		/* only the upper two bytes are relevant */
 		reg = <0x1f4 0x4>;
-- 
2.22.0




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