Hi Chen-Yu,
On 2021-04-05 16:14, Chen-Yu Tsai <wens@xxxxxxxxxx> wrote:
>
> Hi,
>
> On Mon, Apr 5, 2021 at 3:46 PM Tianling Shen <cnsztl@xxxxxxxxx> wrote:
> >
> > From: David Bauer <mail@xxxxxxxxxxxxxxx>
> >
> > Enable the USB3 port on the FriendlyARM NanoPi R2S.
> > This is required for the USB3 attached LAN port to work.
> >
> > Signed-off-by: David Bauer <mail@xxxxxxxxxxxxxxx>
> > Signed-off-by: Tianling Shen <cnsztl@xxxxxxxxx>
> > ---
> > .../boot/dts/rockchip/rk3328-nanopi-r2s.dts | 23 +++++++++++++++++++
> > 1 file changed, 23 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
> > index faf496d789cf..6ba9799a95c5 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
> > +++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
> > @@ -37,6 +37,18 @@
> > };
> > };
> >
> > + vcc_rtl8153: vcc-rtl8153-regulator {
> > + compatible = "regulator-fixed";
> > + gpio = <&gpio2 RK_PC6 GPIO_ACTIVE_HIGH>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&rtl8153_en_drv>;
> > + regulator-always-on;
> > + regulator-name = "vcc_rtl8153";
> > + regulator-min-microvolt = <5000000>;
> > + regulator-max-microvolt = <5000000>;
>
> This is just a simple switch, not an actual regulator.
> It would make more sense to drop the voltage range and
> instead have the implementation pass-through voltage
> constraints from its parent.
Thanks, I'll remove them in v2.
>
> > + enable-active-high;
> > + };
> > +
> > leds {
> > compatible = "gpio-leds";
> > pinctrl-0 = <&lan_led_pin>, <&sys_led_pin>, <&wan_led_pin>;
> > @@ -265,6 +277,12 @@
> > };
> > };
> > };
> > +
> > + usb {
> > + rtl8153_en_drv: rtl8153-en-drv {
> > + rockchip,pins = <2 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > + };
> > };
> >
> > &io_domains {
> > @@ -364,6 +382,11 @@
> > dr_mode = "host";
> > };
> >
> > +&usbdrd3 {
> > + dr_mode = "host";
> > + status = "okay";
>
> Please also add a device node for the actual Ethernet controller, and
> set up an aliases node for it, so that the bootloader has some place
> to fill in a MAC address.
But there's no valid (unique) MAC address for both this or on-board ethernet...
They're non-existent in design.
Thanks,
Tianling.
>
>
> ChenYu
>
> > +};
> > +
> > &usb_host0_ehci {
> > status = "okay";
> > };
> > --
> > 2.17.1
> >
> >
> > _______________________________________________
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> > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
