On 11/1/2024 11:56 PM, Jens Glathe via B4 Relay wrote:
From: Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx>
Device tree for the Microsoft Windows Dev Kit 2023. This work
is based on the initial work of Merck Hung <merckhung@xxxxxxxxx>.
Original work: https://github.com/merckhung/linux_ms_dev_kit/blob/ms-dev-kit-2023-v6.3.0/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-dev-kit-2023.dts
The Windows Dev Kit 2023 is a nice little desktop based on sc8280xp.
Link: https://learn.microsoft.com/en-us/windows/arm/dev-kit/
Supported features:
- USB type-c and type-a ports
- minidp connector
- built-in r8152 Ethernet adapter
- PCIe devices
- nvme
- ath11k WiFi (WCN6855)
- WCN6855 Bluetooth
- A690 GPU
- ADSP and CDSP
- GPIO keys
- Audio definition (works via USB)
Signed-off-by: Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx>
---
[...]
+&usb_2 {
+ pinctrl-0 = <&usb2_en_state>;
+ pinctrl-names = "default";
+
On the blackrock platform, for this controller, are there all 4 ports
given out for use or only one ?
Because if all 4 are there, you might need to give all 4 pinctrls (one
for each TS3USB221A mux select) here for usb_2 node. If only one port is
given out for use on the platform, then only one phy (of the 4 activated
below) needs to be marked as active.
In my case, in [1] on the ADP platform, I marked them as always on for
all gpios on multiport controller since driver had no support added yet.
[1]:
https://lore.kernel.org/all/20240707085624.3411961-1-quic_kriskura@xxxxxxxxxxx/
+ status = "okay";
+};
+
+&usb_2_hsphy0 {
+ vdda-pll-supply = <&vreg_l1b>;
+ vdda18-supply = <&vreg_l1c>;
+ vdda33-supply = <&vreg_l7d>;
+
+ status = "okay";
+};
+
+&usb_2_hsphy1 {
+ vdda-pll-supply = <&vreg_l8d>;
+ vdda18-supply = <&vreg_l1c>;
+ vdda33-supply = <&vreg_l7d>;
+
+ status = "okay";
+};
+
+&usb_2_hsphy2 {
+ vdda-pll-supply = <&vreg_l10d>;
+ vdda18-supply = <&vreg_l8c>;
+ vdda33-supply = <&vreg_l2d>;
+
+ status = "okay";
+};
+
+&usb_2_hsphy3 {
+ vdda-pll-supply = <&vreg_l10d>;
+ vdda18-supply = <&vreg_l8c>;
+ vdda33-supply = <&vreg_l2d>;
+
+ status = "okay";
+};
+
+&usb_2_qmpphy0 {
+ vdda-phy-supply = <&vreg_l1b>;
+ vdda-pll-supply = <&vreg_l4d>;
+
+ status = "okay";
+};
+
+&usb_2_qmpphy1 {
+ vdda-phy-supply = <&vreg_l8d>;
+ vdda-pll-supply = <&vreg_l4d>;
+
+ status = "okay";
+};
+
[...]
+ usb2_en_state: usb2-en-state {
+ /* TS3USB221A USB2.0 mux select */
+ pins = "gpio24";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ output-low;
+ };
+
Regards,
Krishna,
