[U-Boot] [PATCH v2 8/9] arm: dts: add ethernet node to Meson gxbb

[Carlo Caione <carlo@caione.org>]

On Sun, Apr 3, 2016 at 9:18 AM, Beniamino Galvani <b.galvani@gmail.com> wrote:
> Add a node for the Synopsys Designware Ethernet adapter available on
> Meson SoCs to the Meson GXBaby DTS files. The node is not present in
> DTS files used in Linux kernel.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
>  arch/arm/dts/meson-gxbb-odroidc2.dts | 4 ++++
>  arch/arm/dts/meson-gxbb.dtsi         | 9 +++++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/arch/arm/dts/meson-gxbb-odroidc2.dts b/arch/arm/dts/meson-gxbb-odroidc2.dts
> index 653c2fa..408235d 100644
> --- a/arch/arm/dts/meson-gxbb-odroidc2.dts
> +++ b/arch/arm/dts/meson-gxbb-odroidc2.dts
> @@ -67,3 +67,7 @@
>  &uart_AO {
>         status = "okay";
>  };
> +
> +&gmac0 {
> +       status = "okay";
> +};
> diff --git a/arch/arm/dts/meson-gxbb.dtsi b/arch/arm/dts/meson-gxbb.dtsi
> index 832815d..44a54e7 100644
> --- a/arch/arm/dts/meson-gxbb.dtsi
> +++ b/arch/arm/dts/meson-gxbb.dtsi
> @@ -167,6 +167,15 @@
>                         };
>                 };
>
> +               gmac0: ethernet at c9410000 {
> +                       compatible = "snps,dwmac";
> +                       reg = <0x0 0xc9410000 0x0 0x10000>;
> +                       interrupts = <0 8 1>;
> +                       interrupt-names = "macirq";
> +                       phy-mode = "rgmii";
> +                       status = "disabled";
> +               };
> +
>                 apb: apb at d0000000 {
>                         compatible = "simple-bus";
>                         reg = <0x0 0xd0000000 0x0 0x200000>;

Adding this gmac node means that this DTS is already different from
the DTS we have in mainline. This makes me wonder how in u-boot we
manages the difference in the DT between the kernel and u-boot. Are
they supposed to be always in sync or we expect to have two different
DTs?

-- 
Carlo Caione