Hi all,
We had designer carrier board on Jatson AGX Xavier Dev Kit and usb0 and usb1 (USB2.0) function does not working. We made the following changes:
- remove power management circuit
- remove the pd controller
- remove the usb3.1 circuit for usb0 and usb1, keep only their usb2.0 circuit
According to the manual Tegra_Linux_Driver_Package_AGX_Xavier_Adaptation_Guide, we made some modifications to the device tree.
$ diff tegra194-p2888-0001-p2822-0000-common.dtsi tegra194-p2888-0001-p2822-0000-common.dtsi-bk
99c99
< status = "disabled";
---
> status = "okay";
165c165
< mode = "host";
---
> mode = "otg";
197a198,200
> extcon-cables = <&typec_port0 0>;
> extcon-cable-names = "vbus";
> #extcon-cells = <1>;
199,200c202,204
< phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-0}>;
< phy-names = "usb2";
---
> phys = <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-0}>,
> <&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>;
> phy-names = "usb2", "usb3";
207a212,214
> extcon-cables = <&typec_port0 1>;
> extcon-cable-names = "id";
> #extcon-cells = <1>;
212,213c219,224
< <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-2}>;
< phy-names = "usb2-0", "usb2-1", "usb2-3", "usb2-2";
---
> <&{/xusb_padctl@3520000/pads/usb2/lanes/usb2-2}>,
> <&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-2}>,
> <&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-0}>,
> <&{/xusb_padctl@3520000/pads/usb3/lanes/usb3-3}>;
> phy-names = "usb2-0", "usb2-1", "usb2-3", "usb2-2",
> "usb3-2", "usb3-0", "usb3-3";
320a332,348
> &head0 {
> extcon-cables = <&typec_port0 2 &typec_port1 2>;
> extcon-cable-names = "typec0", "typec1";
> #extcon-cells = <1>;
> };
>
> &head1 {
> extcon-cables = <&typec_port0 2 &typec_port1 2>;
> extcon-cable-names = "typec0", "typec1";
> #extcon-cells = <1>;
> };
>
> &head2 {
> extcon-cables = <&typec_port0 2 &typec_port1 2>;
> extcon-cable-names = "typec0", "typec1";
> #extcon-cells = <1>;
> };
$ diff tegra194-fixed-regulator-p2822-1000.dtsi tegra194-fixed-regulator-p2822-1000.dtsi-bk
136,146d135
<
< vdd_usb21_5v0: regulator@115 {
< compatible = "regulator-fixed";
< reg = <115>;
< regulator-name = "vdd-usb21-5v0";
< regulator-min-microvolt = <5000000>;
< regulator-max-microvolt = <5000000>;
< enable-active-high;
< gpio = <&tegra_main_gpio TEGRA194_MAIN_GPIO(Z, 1) 0>;
< vin-supply = <&battery_reg>;
< };
$ diff tegra194-power-tree-p2888-0001-p2822-1000.dtsi tegra194-power-tree-p2888-0001-p2822-1000.dtsi-bk
54c54
< vbus-supply = <&vdd_usb21_5v0>;
---
> vbus-supply = <&battery_reg>;
57c57
< vbus-supply = <&vdd_usb21_5v0>;
---
> vbus-supply = <&battery_reg>;
Then, we rebuild dts and reflash xavier dtb partition. BUT usb0 and usb1 do not working.
Can anyone can help this issue?
dts.zip (4.77 KB)