diff mbox

[v2,2/2] ARM: sun8i: bananapi-m3: Enable dwmac-sun8i

Message ID 20171109082950.21124-3-clabbe.montjoie@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Corentin Labbe Nov. 9, 2017, 8:29 a.m. UTC
The dwmac-sun8i hardware is present on the bananapi m3
It uses an external PHY rtl8211e via RGMII.

This patch create the needed emac and phy nodes.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
 arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Chen-Yu Tsai Nov. 10, 2017, 3:48 a.m. UTC | #1
On Thu, Nov 9, 2017 at 4:29 PM, Corentin Labbe
<clabbe.montjoie@gmail.com> wrote:
> The dwmac-sun8i hardware is present on the bananapi m3
> It uses an external PHY rtl8211e via RGMII.
>
> This patch create the needed emac and phy nodes.
>
> Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> ---
>  arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> index c606af3dbfed..45bdd5c17829 100644
> --- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> +++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> @@ -52,6 +52,7 @@
>         compatible = "sinovoip,bpi-m3", "allwinner,sun8i-a83t";
>
>         aliases {
> +               ethernet0 = &emac;
>                 serial0 = &uart0;
>         };
>
> @@ -88,6 +89,23 @@
>         /* TODO GL830 USB-to-SATA bridge downstream w/ GPIO power controls */
>  };
>
> +&emac {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&emac_rgmii_pins>;
> +       phy-handle = <&ext_rgmii_phy>;
> +       phy-mode = "rgmii";

Schematics say PHY is power by DC1SW from the PMIC.
Not sure why you don't need that. Have you tested your patch?

See https://github.com/wens/linux/commit/c2a12e2470b6d7988a3af043e0f030d8206ad68a

ChenYu

> +       allwinner,rx-delay-ps = <700>;
> +       allwinner,tx-delay-ps = <700>;
> +
> +       status = "okay";
> +};
> +
> +&mdio {
> +       ext_rgmii_phy: ethernet-phy@1 {
> +               reg = <1>;
> +       };
> +};
> +
>  &mmc0 {
>         pinctrl-names = "default";
>         pinctrl-0 = <&mmc0_pins>;
> --
> 2.13.6
>
Corentin Labbe Nov. 10, 2017, 5:50 a.m. UTC | #2
On Fri, Nov 10, 2017 at 11:48:11AM +0800, Chen-Yu Tsai wrote:
> On Thu, Nov 9, 2017 at 4:29 PM, Corentin Labbe
> <clabbe.montjoie@gmail.com> wrote:
> > The dwmac-sun8i hardware is present on the bananapi m3
> > It uses an external PHY rtl8211e via RGMII.
> >
> > This patch create the needed emac and phy nodes.
> >
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> > ---
> >  arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 18 ++++++++++++++++++
> >  1 file changed, 18 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> > index c606af3dbfed..45bdd5c17829 100644
> > --- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> > +++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
> > @@ -52,6 +52,7 @@
> >         compatible = "sinovoip,bpi-m3", "allwinner,sun8i-a83t";
> >
> >         aliases {
> > +               ethernet0 = &emac;
> >                 serial0 = &uart0;
> >         };
> >
> > @@ -88,6 +89,23 @@
> >         /* TODO GL830 USB-to-SATA bridge downstream w/ GPIO power controls */
> >  };
> >
> > +&emac {
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&emac_rgmii_pins>;
> > +       phy-handle = <&ext_rgmii_phy>;
> > +       phy-mode = "rgmii";
> 
> Schematics say PHY is power by DC1SW from the PMIC.
> Not sure why you don't need that. Have you tested your patch?

Tested on 4.14.0-rc5-next-20171018+ 
I will try to check which uboot is used, perhaps it's an old uboot with some PMIC hack.

Thanks
Regards
diff mbox

Patch

diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
index c606af3dbfed..45bdd5c17829 100644
--- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
@@ -52,6 +52,7 @@ 
 	compatible = "sinovoip,bpi-m3", "allwinner,sun8i-a83t";
 
 	aliases {
+		ethernet0 = &emac;
 		serial0 = &uart0;
 	};
 
@@ -88,6 +89,23 @@ 
 	/* TODO GL830 USB-to-SATA bridge downstream w/ GPIO power controls */
 };
 
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_rgmii_pins>;
+	phy-handle = <&ext_rgmii_phy>;
+	phy-mode = "rgmii";
+	allwinner,rx-delay-ps = <700>;
+	allwinner,tx-delay-ps = <700>;
+
+	status = "okay";
+};
+
+&mdio {
+	ext_rgmii_phy: ethernet-phy@1 {
+		reg = <1>;
+	};
+};
+
 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins>;