Hi,
On Thu, 2019-03-14 at 16:50 +0100, Maxime Ripard wrote:
> On Thu, Mar 14, 2019 at 02:06:56PM +0100, Paul Kocialkowski wrote:
> > This is an H3-based board that sticks close to the reference design.
> >
> > Supported features:
> > * UART
> > * DRAM
> > * MMC
> > * eMMC
> > * Ethernet
> > * USB host
> > * USB peripheral
> > * HDMI
> >
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
> > ---
> > arch/arm/boot/dts/Makefile | 1 +
> > arch/arm/boot/dts/sun8i-h3-rervision-dvk.dts | 119 +++++++++++++++++++
> > 2 files changed, 120 insertions(+)
> > create mode 100644 arch/arm/boot/dts/sun8i-h3-rervision-dvk.dts
> >
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index bd40148a15b2..8db275b75214 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -1078,6 +1078,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> > sun8i-h3-orangepi-plus.dtb \
> > sun8i-h3-orangepi-plus2e.dtb \
> > sun8i-h3-orangepi-zero-plus2.dtb \
> > + sun8i-h3-rervision-dvk.dtb \
> > sun8i-r16-bananapi-m2m.dtb \
> > sun8i-r16-nintendo-nes-classic.dtb \
> > sun8i-r16-nintendo-super-nes-classic.dtb \
> > diff --git a/arch/arm/boot/dts/sun8i-h3-rervision-dvk.dts b/arch/arm/boot/dts/sun8i-h3-rervision-dvk.dts
> > new file mode 100644
> > index 000000000000..94b71e064eb6
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/sun8i-h3-rervision-dvk.dts
> > @@ -0,0 +1,119 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright (C) 2019 Bootlin
> > + * Author: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
> > + */
> > +
> > +/dts-v1/;
> > +#include "sun8i-h3.dtsi"
> > +#include "sunxi-common-regulators.dtsi"
> > +
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/input/input.h>
> > +
> > +/ {
> > + model = "RerVision H3-DVK";
> > + compatible = "rervision,h3-dvk", "allwinner,sun8i-h3";
> > +
> > + aliases {
> > + ethernet0 = &emac;
> > + serial0 = &uart0;
> > + };
> > +
> > + chosen {
> > + stdout-path = "serial0:115200n8";
> > + };
> > +
> > + connector {
> > + compatible = "hdmi-connector";
> > + type = "a";
> > +
> > + port {
> > + hdmi_connector_input: endpoint {
> > + remote-endpoint = <&hdmi_connector_output>;
>
> Those are pretty long labels, how would you feel about hdmi_con_in and
> hdmi_out_con, as we've used on all the other boards?
Sure, let's go with label names that match what is done on other
boards!
> > +&mmc2_8bit_pins {
> > + drive-strength = <40>;
> > + bias-pull-up;
> > +};
>
> bias-pull-up is already set by default, and a 30mA drive strength
> should cover what the spec asks for. Did you encounter any issue with
> this?
You're right, I don't need to set this in particular and the eMMC works
just as well with the defaults.
Cheers,
Paul
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
