Hi,
I have custom board, I am using usb2 port0 and usb3 port1(PEX5) as usb3.0 type A host port.
The original device tree has usb2 port0 as otg so otg drivers takes care of it.
In my case since I want usb2 port0 with usb3 port1 as host port, I have commented otg and udc node in dts file and also in one of the power tree file where it enables usb_vbus, I have disabled it and added as part of xusb node in power tree,
1. Is my approach correct?
Following are the changes i did in these files
diff --git a/arch/arm64/boot/dts/tegra210-jetson-cv-base-p2597-2180-a00.dts b/arch/arm64/boot/dts/tegra210-jetson-cv-base-p2597-2180-a00.dts
index 28d7aef..7ceda27 100644
--- a/arch/arm64/boot/dts/tegra210-jetson-cv-base-p2597-2180-a00.dts
+++ b/arch/arm64/boot/dts/tegra210-jetson-cv-base-p2597-2180-a00.dts
@@ -467,7 +467,7 @@
};
};
- udc@7d000000 {
+ /*udc@7d000000 {
nvidia,port-otg;
nvidia,charging-supported;
#extcon-cells = <1>;
@@ -477,10 +477,10 @@
otg@7d000000 {
#extcon-cells = <1>;
status = "okay";
- };
+ };*/
xusb_pad_ctl: xusb_padctl { /* Put common control config here */
- nvidia,ss_portmap = <0x21>;
+ nvidia,ss_portmap = <0x7701>;
nvidia,lane_owner = <0xff56>; /* Use 0xF to disable lane assign */
nvidia,lane-map = <0x14>;
nvidia,enable-sata-port;
@@ -492,7 +492,7 @@
/* nvidia,gpio_controls_muxed_ss_lanes; */
nvidia,gpio_ss1_sata = <0>;
nvidia,ulpicap = <0>; /* No ulpi support. can we remove */
- nvidia,portmap = <0x0e03>;
+ nvidia,portmap = <0x0f03>;
nvidia,common_padctl = <&xusb_pad_ctl>;
status = "okay";
};
diff --git a/arch/arm64/boot/dts/tegra210-platforms/tegra210-jetson-cv-power-tree-p2597-2180-a00.dtsi b/arch/arm64/boot/dts/tegra210-platforms/tegra210-jetson-cv-power-tree-p2597-2180-
index 4ee3e3f..892094d 100644
--- a/arch/arm64/boot/dts/tegra210-platforms/tegra210-jetson-cv-power-tree-p2597-2180-a00.dtsi
+++ b/arch/arm64/boot/dts/tegra210-platforms/tegra210-jetson-cv-power-tree-p2597-2180-a00.dtsi
@@ -329,6 +329,7 @@
gpio = <&tca9539_77 10 1>;
enable-active-high;
};
+
};
host1x {
@@ -353,11 +354,12 @@
vdd-fan-supply = <&vdd_fan>;
};
- otg@7d000000 {
+/* otg@7d000000 {
usb_vbus-supply = <&usb_vbus1>;
- };
+ };*/
xusb@70090000 {
+ usb_vbus-supply = <&usb_vbus1>;
usb_vbus1-supply = <&en_vdd_eth_5v0>;
usb_vbus2-supply = <&en_usb_vbus2>;
};
I have also modified the lane_map for xusb and ss_portmap accordingly, as can be seen in above changes
-
Are my changes to lane_map and ss_portmap are correct according to configuration i have on custom board?
-
I have issues since with above changes USB3.0 port is not working in host mode, what other changes might be required to make usb2 port 0 as host mode or unbind otg driver from usb2 port0 ?
Thanks,
Prathamesh