target/linux/sunxi/patches-6.1/463-arm64-dts-allwinner-h616-OrangePi-Zero-2-Add-USB-nod.patch

   1 From 1bc12a9ae690a22a525f9b71778022bb4533fec1 Mon Sep 17 00:00:00 2001
   2 From: Andre Przywara <andre.przywara@arm.com>
   3 Date: Wed, 16 Jun 2021 18:32:36 +0100
   4 Subject: [PATCH 5005/5006] arm64: dts: allwinner: h616: OrangePi Zero 2: Add
   5  USB nodes
   6
   7 The OrangePi Zero 2 has one USB-A host port, VBUS is provided by
   8 a GPIO controlled regulator.
   9 The USB-C port is meant to power the board, but is also connected to
  10 the USB 0 port, which we configure as an MUSB peripheral.
  11
  12 Signed-off-by: Andre Przywara <andre.przywara@arm.com>
  13 ---
  14  .../allwinner/sun50i-h616-orangepi-zero2.dts  | 41 +++++++++++++++++++
  15  1 file changed, 41 insertions(+)
  16
  17 --- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
  18 +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
  19 @@ -49,8 +49,24 @@
  20                 regulator-max-microvolt = <5000000>;
  21                 regulator-always-on;
  22         };
  23 +
  24 +       reg_usb1_vbus: regulator-usb1-vbus {
  25 +               compatible = "regulator-fixed";
  26 +               regulator-name = "usb1-vbus";
  27 +               regulator-min-microvolt = <5000000>;
  28 +               regulator-max-microvolt = <5000000>;
  29 +               vin-supply = <&reg_vcc5v>;
  30 +               enable-active-high;
  31 +               gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
  32 +       };
  33 +};
  34 +
  35 +&ehci1 {
  36 +       status = "okay";
  37  };
  38
  39 +/* USB 2 & 3 are on headers only. */
  40 +
  41  &emac0 {
  42         pinctrl-names = "default";
  43         pinctrl-0 = <&ext_rgmii_pins>;
  44 @@ -76,6 +92,10 @@
  45         status = "okay";
  46  };
  47
  48 +&ohci1 {
  49 +       status = "okay";
  50 +};
  51 +
  52  &r_rsb {
  53         status = "okay";
  54
  55 @@ -211,3 +231,24 @@
  56         pinctrl-0 = <&uart0_ph_pins>;
  57         status = "okay";
  58  };
  59 +
  60 +&usbotg {
  61 +       /*
  62 +        * PHY0 pins are connected to a USB-C socket, but a role switch
  63 +        * is not implemented: both CC pins are pulled to GND.
  64 +        * The VBUS pins power the device, so a fixed peripheral mode
  65 +        * is the best choice.
  66 +        * The board can be powered via GPIOs, in this case port0 *can*
  67 +        * act as a host (with a cable/adapter ignoring CC), as VBUS is
  68 +        * then provided by the GPIOs. Any user of this setup would
  69 +        * need to adjust the DT accordingly: dr_mode set to "host",
  70 +        * enabling OHCI0 and EHCI0.
  71 +        */
  72 +       dr_mode = "peripheral";
  73 +       status = "okay";
  74 +};
  75 +
  76 +&usbphy {
  77 +       usb1_vbus-supply = <&reg_usb1_vbus>;
  78 +       status = "okay";
  79 +};