Re: [PATCH v12 7/7] arm64: dts: allwinner: h616: Add X96 Mate TV box support

From: Andre Przywara
Date: Fri Jul 08 2022 - 05:49:04 EST

On Mon, 4 Jul 2022 20:29:45 -0500
Samuel Holland <samuel@xxxxxxxxxxxx> wrote:

Hi,

> On 7/1/22 6:24 AM, Andre Przywara wrote:
> > The X96 Mate is an Allwinner H616 based TV box, featuring:
> > - Four ARM Cortex-A53 cores, Mali-G31 MP2 GPU
> > - 2GiB/4GiB RAM (fully usable!)
> > - 16/32/64GiB eMMC
> > - 100Mbps Ethernet (via embedded AC200 EPHY, not yet supported)
> > - Unsupported Allwinner WiFi chip
> > - 2 x USB 2.0 host ports
> > - HDMI port
> > - IR receiver
> > - 5V/2A DC power supply via barrel plug
> >
> > Add a basic devicetree for it, with SD card and eMMC working, as
> > well as serial and the essential peripherals, like the AXP PMIC.
> >
> > This DT is somewhat minimal, and should work on many other similar TV
> > boxes with the Allwinner H616 chip.
> >
> > Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
>
> Looks good to me, with one question below.
>
> Reviewed-by: Samuel Holland <samuel@xxxxxxxxxxxx>

Thanks!

> > ---
> > arch/arm64/boot/dts/allwinner/Makefile | 1 +
> > .../dts/allwinner/sun50i-h616-x96-mate.dts | 177 ++++++++++++++++++
> > 2 files changed, 178 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-x96-mate.dts
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> > index df2214e6d946a..6a96494a2e0a3 100644
> > --- a/arch/arm64/boot/dts/allwinner/Makefile
> > +++ b/arch/arm64/boot/dts/allwinner/Makefile
> > @@ -39,3 +39,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-model-b.dtb
> > dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
> > dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
> > dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
> > +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-x96-mate.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-x96-mate.dts
> > new file mode 100644
> > index 0000000000000..30b76140b9c8a
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-x96-mate.dts
> > @@ -0,0 +1,177 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> > +/*
> > + * Copyright (C) 2021 Arm Ltd.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "sun50i-h616.dtsi"
> > +
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +/ {
> > + model = "X96 Mate";
> > + compatible = "hechuang,x96-mate", "allwinner,sun50i-h616";
> > +
> > + aliases {
> > + serial0 = &uart0;
> > + };
> > +
> > + chosen {
> > + stdout-path = "serial0:115200n8";
> > + };
> > +
> > + reg_vcc5v: vcc5v {
> > + /* board wide 5V supply directly from the DC input */
> > + compatible = "regulator-fixed";
> > + regulator-name = "vcc-5v";
> > + regulator-min-microvolt = <5000000>;
> > + regulator-max-microvolt = <5000000>;
> > + regulator-always-on;
> > + };
> > +};
> > +
> > +&ir {
> > + status = "okay";
> > +};
> > +
> > +&mmc0 {
> > + vmmc-supply = <&reg_dcdce>;
> > + cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
> > + bus-width = <4>;
> > + status = "okay";
> > +};
> > +
> > +&mmc2 {
> > + vmmc-supply = <&reg_dcdce>;
> > + vqmmc-supply = <&reg_bldo1>;
> > + bus-width = <8>;
> > + non-removable;
> > + cap-mmc-hw-reset;
> > + mmc-ddr-1_8v;
> > + mmc-hs200-1_8v;
> > + status = "okay";
> > +};
> > +
> > +&r_rsb {
> > + status = "okay";
> > +
> > + axp305: pmic@745 {
> > + compatible = "x-powers,axp305", "x-powers,axp805",
> > + "x-powers,axp806";
> > + interrupt-controller;
> > + #interrupt-cells = <1>;
> > + reg = <0x745>;
> > +
> > + x-powers,self-working-mode;
> > + vina-supply = <&reg_vcc5v>;
> > + vinb-supply = <&reg_vcc5v>;
> > + vinc-supply = <&reg_vcc5v>;
> > + vind-supply = <&reg_vcc5v>;
> > + vine-supply = <&reg_vcc5v>;
> > + aldoin-supply = <&reg_vcc5v>;
> > + bldoin-supply = <&reg_vcc5v>;
> > + cldoin-supply = <&reg_vcc5v>;
> > +
> > + regulators {
> > + reg_aldo1: aldo1 {
> > + regulator-always-on;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc-sys";
> > + };
> > +
> > + /* Enabled by the Android BSP */
> > + reg_aldo2: aldo2 {
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc3v3-ext";
> > + status = "disabled";
>
> If you disable these nodes, the regulator core will ignore them and not apply
> the voltages. Is that what you want?

It's what works ;-)
ALDO2 was enabled and set to 3.3V by Android, also set in their DTB.
However I figured it's not needed for our operation, at least not with
the peripherals we support (including USB): turning it on or off didn't
change anything. I just kept this in as documentation and a guide for
future enablement, as this may drive *something*.

Cheers,
Andre

>
> Regards,
> Samuel
>
> > + };
> > +
> > + /* Enabled by the Android BSP */
> > + reg_aldo3: aldo3 {
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc3v3-ext2";
> > + status = "disabled";
> > + };
> > +
> > + reg_bldo1: bldo1 {
> > + regulator-always-on;
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + regulator-name = "vcc1v8";
> > + };
> > +
> > + /* Enabled by the Android BSP */
> > + reg_bldo2: bldo2 {
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + regulator-name = "vcc1v8-2";
> > + status = "disabled";
> > + };
> > +
> > + bldo3 {
> > + /* unused */
> > + };
> > +
> > + bldo4 {
> > + /* unused */
> > + };
> > +
> > + cldo1 {
> > + regulator-min-microvolt = <2500000>;
> > + regulator-max-microvolt = <2500000>;
> > + regulator-name = "vcc2v5";
> > + };
> > +
> > + cldo2 {
> > + /* unused */
> > + };
> > +
> > + cldo3 {
> > + /* unused */
> > + };
> > +
> > + reg_dcdca: dcdca {
> > + regulator-always-on;
> > + regulator-min-microvolt = <810000>;
> > + regulator-max-microvolt = <1080000>;
> > + regulator-name = "vdd-cpu";
> > + };
> > +
> > + reg_dcdcc: dcdcc {
> > + regulator-always-on;
> > + regulator-min-microvolt = <810000>;
> > + regulator-max-microvolt = <1080000>;
> > + regulator-name = "vdd-gpu-sys";
> > + };
> > +
> > + reg_dcdcd: dcdcd {
> > + regulator-always-on;
> > + regulator-min-microvolt = <1360000>;
> > + regulator-max-microvolt = <1360000>;
> > + regulator-name = "vdd-dram";
> > + };
> > +
> > + reg_dcdce: dcdce {
> > + regulator-always-on;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc-eth-mmc";
> > + };
> > +
> > + sw {
> > + /* unused */
> > + };
> > + };
> > + };
> > +};
> > +
> > +&uart0 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&uart0_ph_pins>;
> > + status = "okay";
> > +};
> >
>