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SubjectRe: [PATCH v2 2/6] ARM: dts: sun8i: v40: bananapi-m2-berry: Enable GMAC ethernet controller
On Fri, Apr 12, 2019 at 07:33:01AM -0300, Pablo Greco wrote:
> Just like the Bananapi M2 Ultra, the Bananapi M2 Berry has a Realtek
> RTL8211E RGMII PHY tied to the GMAC.
> The PMIC's DC1SW output provides power for the PHY, while the ALDO2
> output provides I/O voltages on both sides.
>
> Signed-off-by: Pablo Greco <pgreco@centosproject.org>
> ---
> arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts | 30 +++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> index f05cabd..0d79e91 100644
> --- a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> +++ b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
> @@ -50,6 +50,7 @@
> compatible = "sinovoip,bpi-m2-berry", "allwinner,sun8i-r40";
>
> aliases {
> + ethernet0 = &gmac;
> serial0 = &uart0;
> };
>
> @@ -92,6 +93,22 @@
> status = "okay";
> };
>
> +&gmac {
> + pinctrl-names = "default";
> + pinctrl-0 = <&gmac_rgmii_pins>;
> + phy-handle = <&phy1>;
> + phy-mode = "rgmii";
> + phy-supply = <&reg_dc1sw>;
> + status = "okay";
> +};
> +
> +&gmac_mdio {
> + phy1: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> + };
> +};
> +
> &i2c0 {
> status = "okay";
>
> @@ -123,6 +140,13 @@
> status = "okay";
> };
>
> +&reg_aldo2 {
> + regulator-always-on;
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + regulator-name = "vcc-pa";
> +};
> +

If this one provides power to the pins, it should be tied to the PIO
node.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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