[PATCH 3/3] arm64: dts: allwinner: Add Jide Remix Mini PC support

Jernej Škrabec jernej.skrabec at gmail.com
Tue Feb 6 09:32:53 PST 2024 

Dne torek, 06. februar 2024 ob 01:47:05 CET je Andre Przywara napisal(a):
> Hi Jernej,
> 
> thanks for having a look!
> 
> On 05/02/2024 19:20, Jernej Škrabec wrote:
> > Dne ponedeljek, 05. februar 2024 ob 19:12:45 CET je Jernej Škrabec napisal(a):
> >> Hi Andre!
> >>
> >> Dne nedelja, 04. februar 2024 ob 10:44:04 CET je Andre Przywara napisal(a):
> >>> The Remix Mini PC is a "mini computer" using the Allwinner H64 SoC,
> >>> which appears to be just a relabelled A64. It was launched in 2015 by
> >>> the now defunct company Jide, and shipped with a desktop optimised
> >>> version of Android. It features
> >>> 	- Allwinner H64 Soc (4 * Arm Cortex-A53 cores)
> >>> 	- 1 or 2 GB DRAM
> >>> 	- 8 or 16 GB eMMC flash
> >>> 	- 100 MBit Ethernet port (using an X-Powers AC200 PHY)
> >>> 	- RTL8723BS WiFi & Bluetooth chip
> >>> 	- HDMI port
> >>> 	- two USB 2.0 ports
> >>> 	- 3.5mm AV port
> >>> 	- microSD card slot
> >>>
> >>> The devicetree covers most peripherals, though there is no agreed
> >>> binding for the PHY chip yet, so this is left out.
> >>>
> >>> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> >>> ---
> >>>   arch/arm64/boot/dts/allwinner/Makefile        |   1 +
> >>>   .../allwinner/sun50i-h64-remix-mini-pc.dts    | 357 ++++++++++++++++++
> >>>   2 files changed, 358 insertions(+)
> >>>   create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> >>>
> >>> diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> >>> index 91d505b385de..2db3b15ad09f 100644
> >>> --- a/arch/arm64/boot/dts/allwinner/Makefile
> >>> +++ b/arch/arm64/boot/dts/allwinner/Makefile
> >>> @@ -16,6 +16,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab-early-adopter.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-teres-i.dtb
> >>> +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h64-remix-mini-pc.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a100-allwinner-perf1.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus.dtb
> >>>   dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus-v1.2.dtb
> >>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts b/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> >>> new file mode 100644
> >>> index 000000000000..537923a541a8
> >>> --- /dev/null
> >>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h64-remix-mini-pc.dts
> >>> @@ -0,0 +1,357 @@
> >>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> >>> +// Copyright (c) 2018 ARM Ltd.
> >>
> >> Shouldn't be 2024?
> 
> Well, that just documents that sad fact that I indeed created this file 
> 6 years ago, but just managed now to actually send this. Is there a 
> requirement for this being "recent"?

Not really, but it's strange looking. Some might incorrectly assume that it's
present in the kernel longer than it really is.

> 
> >>
> >>> +
> >>> +/dts-v1/;
> >>> +
> >>> +#include "sun50i-a64.dtsi"
> >>> +#include "sun50i-a64-cpu-opp.dtsi"
> >>> +
> >>> +#include <dt-bindings/gpio/gpio.h>
> >>> +
> >>> +/ {
> >>> +	model = "Remix Mini PC";
> >>> +	compatible = "jide,remix-mini-pc", "allwinner,sun50i-h64",
> >>> +		     "allwinner,sun50i-a64";
> >>> +
> >>> +	aliases {
> >>> +		ethernet1 = &rtl8723bs;
> >>> +		serial0 = &uart0;
> >>> +	};
> >>> +
> >>> +	chosen {
> >>> +		stdout-path = "serial0:115200n8";
> >>> +	};
> >>> +
> >>> +	hdmi-connector {
> >>> +		compatible = "hdmi-connector";
> >>> +		type = "a";
> >>> +
> >>> +		port {
> >>> +			hdmi_con_in: endpoint {
> >>> +				remote-endpoint = <&hdmi_out_con>;
> >>> +			};
> >>> +		};
> >>> +	};
> >>> +
> >>> +	reg_vcc5v: regulator-5v {
> >>> +		/* 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;
> >>> +	};
> >>> +
> >>> +	wifi_pwrseq: wifi_pwrseq {
> >>> +		compatible = "mmc-pwrseq-simple";
> >>> +		pinctrl-names = "default";
> >>> +		reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> >>> +		post-power-on-delay-ms = <200>;
> >>> +	};
> >>> +};
> >>> +
> >>> +&codec {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&codec_analog {
> >>> +	cpvdd-supply = <&reg_eldo1>;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&cpu0 {
> >>> +	cpu-supply = <&reg_dcdc2>;
> >>> +};
> >>> +
> >>> +&cpu1 {
> >>> +	cpu-supply = <&reg_dcdc2>;
> >>> +};
> >>> +
> >>> +&cpu2 {
> >>> +	cpu-supply = <&reg_dcdc2>;
> >>> +};
> >>> +
> >>> +&cpu3 {
> >>> +	cpu-supply = <&reg_dcdc2>;
> >>> +};
> >>> +
> >>> +&dai {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&de {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&ehci0 {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&ehci1 {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&hdmi {
> >>> +	hvcc-supply = <&reg_dldo1>;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&hdmi_out {
> >>> +	hdmi_out_con: endpoint {
> >>> +		remote-endpoint = <&hdmi_con_in>;
> >>> +	};
> >>> +};
> >>> +
> >>> +/* Connects to the AC200 chip */
> >>> +&i2c0 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&i2c0_pins>;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&i2c0_pins {
> >>> +	bias-pull-up;
> >>> +};
> >>> +
> >>> +&mmc0 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&mmc0_pins>;
> >>> +	vmmc-supply = <&reg_dcdc1>;
> >>> +	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
> >>> +	disable-wp;
> >>> +	bus-width = <4>;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&mmc1 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&mmc1_pins>;
> >>> +	vmmc-supply = <&reg_aldo1>;
> >>> +	vqmmc-supply = <&reg_dldo4>;
> >>> +	mmc-pwrseq = <&wifi_pwrseq>;
> >>> +	bus-width = <4>;
> >>> +	non-removable;
> >>> +	status = "okay";
> >>> +
> >>> +	rtl8723bs: wifi at 1 {
> >>> +		reg = <1>;
> >>> +		interrupt-parent = <&r_pio>;
> >>> +		interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
> >>> +		interrupt-names = "host-wake";
> >>> +	};
> >>
> >> Node without compatible doesn't help. Please remove it.
> 
> Huh, but where do I put the the IRQ line then? And every other RTL8723BS 
> user seems to do the same?

It's good, sorry for the noise.

> 
> >>
> >>> +};
> >>> +
> >>> +&mmc2 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&mmc2_pins>, <&mmc2_ds_pin>;
> >>> +	vmmc-supply = <&reg_dcdc1>;
> >>> +	vqmmc-supply = <&reg_eldo1>;
> >>> +	bus-width = <8>;
> >>> +	non-removable;
> >>> +	mmc-ddr-1_8v;
> >>> +	mmc-hs200-1_8v;
> >>
> >> Aren't these speed modes enabled by default?
> 
> Enabled by who? Our current sunxi-mmc driver? I cannot find anything in 
> the binding that suggests that there would be some default settings.

Looking at Linux sunxi mmc driver, mmc-ddr-1_8v is enabled by default for
"new timings" variants except for H5. Anyway...

> 
> > Sorry, mmc-hs200-1_8v is ok, but mmc-ddr-1_8v should be
> > removed.
> 
> Mmh, I am confused: I thought after the H5 eMMC mishap we figured that 
> all speed modes supported by the eMMC chip should be listed in the DT?

I think H5 just has (had?) driver issue. From what I can see, only highest
supported mode by kernel and chip is specified in all Allwinner DTs.
mmc-ddr-1_8v is only specified by two recent board addition, where I missed
it while reviewing.

> So any driver wouldn't need to make assumptions, and if a particular 
> mode shows problems on a board, we just remove that mode from the DT.
> Actually, thinking about that, I guess I should list HS-400 as well? The 
> BSP kernel uses that mode.

Sure, but it also calibrates timing for it. If you'll specify HS400, kernel
will try to use it, but it won't work.

> Or do you mean to say that in particular DDR (@1.8V) is problematic? I 
> cannot test at the moment, but could try later to force that mode.

No, no need.

Best regards,
Jernej

> 
> Cheers,
> Andre
> 
> 
> >>> +	cap-mmc-hw-reset;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&ohci0 {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&ohci1 {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&pio {
> >>> +	vcc-pb-supply = <&reg_dcdc1>;
> >>> +	vcc-pc-supply = <&reg_dcdc1>;
> >>> +	vcc-pd-supply = <&reg_dcdc1>;
> >>> +	vcc-pe-supply = <&reg_dcdc1>;
> >>> +	vcc-pf-supply = <&reg_dcdc1>;
> >>> +	vcc-pg-supply = <&reg_dldo4>;
> >>> +	vcc-ph-supply = <&reg_dcdc1>;
> >>> +};
> >>> +
> >>> +&r_ir {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&r_pio {
> >>> +	/*
> >>> +	 * We cannot add that supply for now since it would create a circular
> >>> +	 * dependency between pinctrl, the regulator and the RSB Bus.
> >>> +	 *
> >>> +	 * vcc-pl-supply = <&reg_aldo2>;
> >>> +	 */
> >>> +};
> >>> +
> >>> +&r_rsb {
> >>> +	status = "okay";
> >>> +
> >>> +	axp803: pmic at 3a3 {
> >>> +		compatible = "x-powers,axp803";
> >>> +		reg = <0x3a3>;
> >>> +		interrupt-parent = <&r_intc>;
> >>> +		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_LOW>;
> >>> +		x-powers,drive-vbus-en;
> >>> +
> >>> +		vin1-supply = <&reg_vcc5v>;
> >>> +		vin2-supply = <&reg_vcc5v>;
> >>> +		vin3-supply = <&reg_vcc5v>;
> >>> +		vin5-supply = <&reg_vcc5v>;
> >>> +		vin6-supply = <&reg_vcc5v>;
> >>> +		aldoin-supply = <&reg_vcc5v>;
> >>> +		dldoin-supply = <&reg_vcc5v>;
> >>> +		eldoin-supply = <&reg_vcc5v>;
> >>> +		fldoin-supply = <&reg_vcc5v>;
> >>> +		drivevbus-supply = <&reg_vcc5v>;
> >>> +		ips-supply = <&reg_vcc5v>;
> >>> +
> >>> +		status = "okay";
> >>> +	};
> >>> +};
> >>> +
> >>> +#include "axp803.dtsi"
> >>> +
> >>> +&ac_power_supply {
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&reg_dcdc1 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <3300000>;
> >>> +	regulator-max-microvolt = <3300000>;
> >>> +	regulator-name = "vcc-3v3";
> >>> +};
> >>> +
> >>> +&reg_dcdc2 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <1040000>;
> >>> +	regulator-max-microvolt = <1300000>;
> >>> +	regulator-name = "vdd-cpux";
> >>> +};
> >>> +
> >>> +/* DCDC3 is polyphased with DCDC2 */
> >>> +
> >>> +&reg_dcdc5 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <1500000>;
> >>> +	regulator-max-microvolt = <1500000>;
> >>> +	regulator-name = "vcc-dram";
> >>> +};
> >>> +
> >>> +/* Deviates from the reset default of 1.1V. */
> >>> +&reg_dcdc6 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <1200000>;
> >>> +	regulator-max-microvolt = <1200000>;
> >>> +	regulator-name = "vdd-sys";
> >>> +};
> >>> +
> >>> +&reg_aldo1 {
> >>> +	regulator-min-microvolt = <3300000>;
> >>> +	regulator-max-microvolt = <3300000>;
> >>> +	regulator-name = "vcc-wifi";
> >>> +};
> >>> +
> >>> +&reg_aldo2 {
> >>> +	/* Specifying R_PIO consumer would create circular dependency. */
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <3300000>;
> >>> +	regulator-max-microvolt = <3300000>;
> >>> +	regulator-name = "vcc-pl";
> >>> +};
> >>> +
> >>> +&reg_aldo3 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <3000000>;
> >>> +	regulator-max-microvolt = <3000000>;
> >>> +	regulator-name = "vcc-pll-avcc";
> >>> +};
> >>> +
> >>> +/* AC200 power supply */
> >>> +&reg_dldo1 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <3300000>;
> >>> +	regulator-max-microvolt = <3300000>;
> >>> +	regulator-name = "vcc-ave-33";
> >>> +};
> >>> +
> >>> +&reg_dldo4 {
> >>> +	regulator-min-microvolt = <3300000>;
> >>> +	regulator-max-microvolt = <3300000>;
> >>> +	regulator-name = "vcc-wifi-io";
> >>> +};
> >>> +
> >>> +&reg_drivevbus {
> >>> +	regulator-name = "usb0-vbus";
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&reg_eldo1 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <1800000>;
> >>> +	regulator-max-microvolt = <1800000>;
> >>> +	regulator-name = "vcc-cpvdd-dram-emmc";
> >>> +};
> >>> +
> >>> +/* Supplies the arisc management core, needed by TF-A to power off cores. */
> >>> +&reg_fldo2 {
> >>> +	regulator-always-on;
> >>> +	regulator-min-microvolt = <1100000>;
> >>> +	regulator-max-microvolt = <1100000>;
> >>> +	regulator-name = "vdd-cpus";
> >>> +};
> >>> +
> >>> +&reg_rtc_ldo {
> >>> +	regulator-name = "vcc-rtc";
> >>> +};
> >>> +
> >>> +&simplefb_hdmi {
> >>> +	vcc-hdmi-supply = <&reg_dcdc1>;
> >>> +};
> >>> +
> >>> +&sound {
> >>> +	simple-audio-card,aux-devs = <&codec_analog>;
> >>> +	simple-audio-card,widgets = "Microphone", "Microphone Jack",
> >>> +				    "Headphone", "Headphone Jack";
> >>> +	simple-audio-card,routing =
> >>> +			"Left DAC", "DACL",
> >>> +			"Right DAC", "DACR",
> >>> +			"Headphone Jack", "HP",
> >>> +			"ADCL", "Left ADC",
> >>> +			"ADCR", "Right ADC",
> >>> +			"MIC2", "Microphone Jack";
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +/* On the (unpopulated) UART pads. */
> >>> +&uart0 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&uart0_pb_pins>;
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&uart1 {
> >>> +	pinctrl-names = "default";
> >>> +	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
> >>> +	uart-has-rtscts;
> >>> +	status = "okay";
> >>> +
> >>> +	bluetooth {
> >>> +		compatible = "realtek,rtl8723bs-bt";
> >>> +		enable-gpios = <&r_pio 0 4 GPIO_ACTIVE_HIGH>; /* PL4 */
> >>> +		max-speed = <1500000>;
> >>> +	};
> >>> +};
> >>> +
> >>> +&usb_otg {
> >>> +	dr_mode = "host";
> >>> +	status = "okay";
> >>> +};
> >>> +
> >>> +&usbphy {
> >>> +	usb0_vbus-supply = <&reg_drivevbus>;
> >>> +	usb1_vbus-supply = <&reg_drivevbus>;
> >>> +	status = "okay";
> >>> +};
> >>>
> >>
> >>
> >>
> >>
> >>
> > 
> > 
> > 
> > 
>

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