[PATCH v3 09/11] ARM: dts: suniv: add device tree for PopStick v1.1

[Samuel Holland]

On 11/13/22 18:17, Andre Przywara wrote:
> On Sun, 13 Nov 2022 16:41:04 -0600
> Samuel Holland <samuel at sholland.org> wrote:
> 
>> On 11/6/22 09:48, Andre Przywara wrote:
>>> From: Icenowy Zheng <uwu at icenowy.me>
>>>
>>> PopStick is a minimal Allwinner F1C200s dongle, with its USB controller
>>> wired to a USB Type-A port, a SD slot and a SPI NAND flash on board, and
>>> an on-board CH340 USB-UART converted connected to F1C200s's UART0.
>>>
>>> Add a device tree for it. As F1C200s is just F1C100s with a different
>>> DRAM chip co-packaged, directly use F1C100s DTSI here.
>>>
>>> This commit covers the v1.1 version of this board, which is now shipped.
>>> v1.0 is some internal sample that have not been shipped at all.
>>>
>>> Signed-off-by: Icenowy Zheng <uwu at icenowy.me>
>>> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
>>> ---
>>>  arch/arm/boot/dts/Makefile                    |  3 +-
>>>  .../boot/dts/suniv-f1c200s-popstick-v1.1.dts  | 99 +++++++++++++++++++
>>>  2 files changed, 101 insertions(+), 1 deletion(-)
>>>  create mode 100644 arch/arm/boot/dts/suniv-f1c200s-popstick-v1.1.dts
>>>
>>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>>> index 6aa7dc4db2fc..0249c07bd8a6 100644
>>> --- a/arch/arm/boot/dts/Makefile
>>> +++ b/arch/arm/boot/dts/Makefile
>>> @@ -1391,7 +1391,8 @@ dtb-$(CONFIG_MACH_SUN9I) += \
>>>  	sun9i-a80-optimus.dtb \
>>>  	sun9i-a80-cubieboard4.dtb
>>>  dtb-$(CONFIG_MACH_SUNIV) += \
>>> -	suniv-f1c100s-licheepi-nano.dtb
>>> +	suniv-f1c100s-licheepi-nano.dtb \
>>> +	suniv-f1c200s-popstick-v1.1.dtb
>>>  dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
>>>  	tegra20-acer-a500-picasso.dtb \
>>>  	tegra20-asus-tf101.dtb \
>>> diff --git a/arch/arm/boot/dts/suniv-f1c200s-popstick-v1.1.dts b/arch/arm/boot/dts/suniv-f1c200s-popstick-v1.1.dts
>>> new file mode 100644
>>> index 000000000000..7d69b5fcb905
>>> --- /dev/null
>>> +++ b/arch/arm/boot/dts/suniv-f1c200s-popstick-v1.1.dts
>>> @@ -0,0 +1,99 @@
>>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>>> +/*
>>> + * Copyright 2022 Icenowy Zheng <uwu at icenowy.me>
>>> + */
>>> +
>>> +/dts-v1/;
>>> +#include "suniv-f1c100s.dtsi"
>>> +
>>> +#include <dt-bindings/gpio/gpio.h>
>>> +#include <dt-bindings/leds/common.h>
>>> +
>>> +/ {
>>> +	model = "Popcorn Computer PopStick v1.1";
>>> +	compatible = "sourceparts,popstick-v1.1", "sourceparts,popstick",
>>> +		     "allwinner,suniv-f1c200s", "allwinner,suniv-f1c100s";
>>> +
>>> +	aliases {
>>> +		serial0 = &uart0;
>>> +	};
>>> +
>>> +	chosen {
>>> +		stdout-path = "serial0:115200n8";
>>> +	};
>>> +
>>> +	leds {
>>> +		compatible = "gpio-leds";
>>> +
>>> +		led {
>>> +			function = LED_FUNCTION_STATUS;
>>> +			color = <LED_COLOR_ID_GREEN>;
>>> +			gpios = <&pio 4 6 GPIO_ACTIVE_HIGH>; /* PE6 */
>>> +			linux,default-trigger = "heartbeat";
>>> +		};
>>> +	};
>>> +
>>> +	reg_vcc3v3: regulator-3v3 {
>>> +		compatible = "regulator-fixed";
>>> +		regulator-name = "vcc3v3";
>>> +		regulator-min-microvolt = <3300000>;
>>> +		regulator-max-microvolt = <3300000>;
>>> +	};
>>> +};
>>> +
>>> +&mmc0 {
>>> +	cd-gpios = <&pio 4 3 GPIO_ACTIVE_LOW>; /* PE3 */
>>> +	bus-width = <4>;
>>> +	disable-wp;
>>> +	vmmc-supply = <&reg_vcc3v3>;
>>> +	status = "okay";
>>> +};
>>> +
>>> +&otg_sram {
>>> +	status = "okay";
>>> +};
>>> +
>>> +&spi0 {
>>> +	pinctrl-names = "default";
>>> +	pinctrl-0 = <&spi0_pc_pins>;
>>> +	status = "okay";
>>> +
>>> +	flash at 0 {
>>> +		compatible = "spi-nand";
>>> +		reg = <0>;
>>> +		spi-max-frequency = <40000000>;
>>> +		#address-cells = <1>;
>>> +		#size-cells = <1>;
>>> +
>>> +		partitions {
>>> +			compatible = "fixed-partitions";
>>> +			#address-cells = <1>;
>>> +			#size-cells = <1>;
>>> +
>>> +			partition at 0 {
>>> +				label = "u-boot-with-spl";
>>> +				reg = <0x0 0x100000>;
>>> +			};
>>> +
>>> +			ubi at 100000 {
>>> +				label = "ubi";
>>> +				reg = <0x100000 0x7f00000>;
>>> +			};
>>> +		};
>>> +	};
>>> +};
>>> +
>>> +&uart0 {
>>> +	pinctrl-names = "default";
>>> +	pinctrl-0 = <&uart0_pe_pins>;
>>> +	status = "okay";
>>> +};
>>> +
>>> +&usb_otg {
>>> +	dr_mode = "peripheral";  
>>
>> The patch description says the board has a USB Type-A port. Why is the
>> USB controller set to peripheral mode?
> 
> It's a USB type-A *plug*, not a socket, because it's some TV stick
> style of device, just with a USB instead of an HDMI plug.

Ah, that makes sense. Please clarify this in the commit message.

Regards,
Samuel