On 11/13/22 18:17, Andre Przywara wrote:

On Sun, 13 Nov 2022 16:41:04 -0600
Samuel Holland [off-list ref] wrote:

quoted

On 11/6/22 09:48, Andre Przywara wrote:

quoted

From: Icenowy Zheng <redacted>

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 <redacted>
Signed-off-by: Andre Przywara <andre.przywara@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@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@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@0 {
+				label = "u-boot-with-spl";
+				reg = <0x0 0x100000>;
+			};
+
+			ubi@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


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