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82 lines
2.3 KiB
Diff
82 lines
2.3 KiB
Diff
From db5f028309ede13767e2ba356c1975ac37a4fd6c Mon Sep 17 00:00:00 2001
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From: Andre Przywara <andre.przywara@arm.com>
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Date: Mon, 31 Oct 2022 11:13:57 +0000
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Subject: [PATCH] arm64: dts: allwinner: h616: OrangePi Zero 2: Add USB nodes
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The OrangePi Zero 2 has one USB-A host port, VBUS is provided by
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a GPIO controlled regulator.
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The USB-C port is meant to power the board, but is also connected to
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the USB 0 port, which we configure as an MUSB peripheral.
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Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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Link: https://lore.kernel.org/r/20221031111358.3387297-7-andre.przywara@arm.com
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Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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---
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.../allwinner/sun50i-h616-orangepi-zero2.dts | 41 +++++++++++++++++++
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1 file changed, 41 insertions(+)
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--- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
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@@ -49,8 +49,24 @@
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regulator-max-microvolt = <5000000>;
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regulator-always-on;
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};
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+
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+ reg_usb1_vbus: regulator-usb1-vbus {
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+ compatible = "regulator-fixed";
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+ regulator-name = "usb1-vbus";
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+ regulator-min-microvolt = <5000000>;
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+ regulator-max-microvolt = <5000000>;
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+ vin-supply = <®_vcc5v>;
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+ enable-active-high;
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+ gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
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+ };
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+};
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+
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+&ehci1 {
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+ status = "okay";
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};
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+/* USB 2 & 3 are on headers only. */
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+
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&emac0 {
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pinctrl-names = "default";
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pinctrl-0 = <&ext_rgmii_pins>;
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@@ -76,6 +92,10 @@
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status = "okay";
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};
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+&ohci1 {
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+ status = "okay";
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+};
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+
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&r_rsb {
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status = "okay";
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@@ -211,3 +231,24 @@
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pinctrl-0 = <&uart0_ph_pins>;
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status = "okay";
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};
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+
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+&usbotg {
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+ /*
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+ * PHY0 pins are connected to a USB-C socket, but a role switch
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+ * is not implemented: both CC pins are pulled to GND.
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+ * The VBUS pins power the device, so a fixed peripheral mode
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+ * is the best choice.
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+ * The board can be powered via GPIOs, in this case port0 *can*
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+ * act as a host (with a cable/adapter ignoring CC), as VBUS is
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+ * then provided by the GPIOs. Any user of this setup would
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+ * need to adjust the DT accordingly: dr_mode set to "host",
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+ * enabling OHCI0 and EHCI0.
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+ */
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+ dr_mode = "peripheral";
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+ status = "okay";
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+};
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+
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+&usbphy {
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+ usb1_vbus-supply = <®_usb1_vbus>;
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+ status = "okay";
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+};
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