linux-kernel - Re: [PATCH v2] ARM: dts: exynos: Add a placeholder for a MAC address

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Date:   Sun, 1 Nov 2020 19:37:04 +0530
From:   Anand Moon <linux.amoon@...il.com>
To:     Łukasz Stelmach <l.stelmach@...sung.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-samsung-soc@...r.kernel.org,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v2] ARM: dts: exynos: Add a placeholder for a MAC address

Hi Lukasz,

On Thu, 1 Oct 2020 at 19:25, Łukasz Stelmach <l.stelmach@...sung.com> wrote:
>
> Add a placeholder for a MAC address. A bootloader may fill it
> to set the MAC address and override EEPROM settings.
>
> Signed-off-by: Łukasz Stelmach <l.stelmach@...sung.com>
> ---
> Changes in v2:
>  - use local-mac-address and leave mac-address to be added by a bootloader
>
>  arch/arm/boot/dts/exynos5422-odroidxu3.dts | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> index db0bc17a667b..d0f6ac5fa79d 100644
> --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> @@ -70,3 +70,21 @@ &pwm {
>  &usbdrd_dwc3_1 {
>         dr_mode = "peripheral";
>  };
> +
> +&usbhost2 {
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +
> +       hub@1 {
> +               compatible = "usb8087,0024";
> +               reg = <1>;
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +
> +               ethernet: usbether@1 {
> +                       compatible = "usb0c45,6310";
> +                       reg = <1>;
> +                       local-mac-address = [00 00 00 00 00 00]; /* Filled in by a bootloader */
> +               };
> +       };
> +};
> --
> 2.26.2
>

Thanks for this patch, can you share some example on how to set the
mac address via u-boot bootargs
also can you update this patch for exynos5422-odroidxu3-lite.dts and
exynos4412-odroidu3.dts.

Best Regards
-Anand