Re: [PATCH] ARM: dts: exynos: Add a placeholder for a MAC address

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On Wed, Sep 30, 2020 at 04:31:51PM +0200, Łukasz Stelmach 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@xxxxxxxxxxx>
> ---
>  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..9f7f3eacb750 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>;
> +			mac-address = [00 00 00 00 00 00]; /* Filled in by a bootloader */

Why do you need a placeholder? U-Boot can just append the
address/property.

Best regards,
Krzysztof



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