Hi Martin,
On 27/07/2019 21:46, Martin Blumenstingl wrote:
> 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 <[email protected]>
> ---
> 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@1b4 {
> + reg = <0x1b4 0x6>;
> + };
Is this a fixed position for all boards ? if not, I'll suggest moving
it to the odroid-c1 dt until you have more users.
Neil
> +
> temperature_calib: calib@1f4 {
> /* only the upper two bytes are relevant */
> reg = <0x1f4 0x4>;
>
