Hello Sascha,
On 22.06.21 10:08, Ahmad Fatoum wrote:
> With the latest NVMEM enhancements merged, barebox networking core now
> always consults NVMEM cells referenced in the network controller
> device tree node before it falls back to randomizing a new address.
>
> The SAM5D27-SOM1 has a 256 byte EEPROM, which holds a MAC address in its
> last 6 bytes. Describe this in the device tree, so boards using the SoM
> will get an unique MAC address assigned and fixed up into the kernel
> device tree. This change can be dropped again when/if the change is
> submitted and applied upstream.
This patch seems to have slipped through the cracks.
Cheers,
Ahmad
>
> Reported-by: Alexander Dahl <ada@xxxxxxxxxxx>
> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
> arch/arm/dts/at91-sama5d27_som1.dtsi | 18 ++++++++++++++++++
> arch/arm/dts/at91-sama5d27_som1_ek.dts | 2 +-
> 2 files changed, 19 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/dts/at91-sama5d27_som1.dtsi
>
> diff --git a/arch/arm/dts/at91-sama5d27_som1.dtsi b/arch/arm/dts/at91-sama5d27_som1.dtsi
> new file mode 100644
> index 000000000000..0d84c45f9263
> --- /dev/null
> +++ b/arch/arm/dts/at91-sama5d27_som1.dtsi
> @@ -0,0 +1,18 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +#include "sama5d2.dtsi"
> +
> +&macb0 {
> + nvmem-cells = <&macaddr>;
> + nvmem-cell-names = "mac-address";
> +};
> +
> +&{/ahb/apb/i2c@f8028000/at24@50} {
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + macaddr: mac-address@fa {
> + reg = <0xfa 6>;
> + label = "mac-address";
> + };
> +};
> diff --git a/arch/arm/dts/at91-sama5d27_som1_ek.dts b/arch/arm/dts/at91-sama5d27_som1_ek.dts
> index 97a326dd2b26..1a704b42680f 100644
> --- a/arch/arm/dts/at91-sama5d27_som1_ek.dts
> +++ b/arch/arm/dts/at91-sama5d27_som1_ek.dts
> @@ -4,7 +4,7 @@
> */
>
> #include <arm/at91-sama5d27_som1_ek.dts>
> -#include "sama5d2.dtsi"
> +#include "at91-sama5d27_som1.dtsi"
>
> / {
> chosen {
>
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