Re: [PATCH 04/11] arm64: tegra: Enable XUSB host and device on Jetson AGX Orin

Krzysztof Kozlowski
2022-10-28T02:24:14Z

On 24/10/2022 03:41, Wayne Chang wrote:
> This commit enables XUSB host, device, and pad controller on
> Jetson AGX Orin.
>
> Signed-off-by: Wayne Chang <waynec@nvidia.com>
> ---
> .../boot/dts/nvidia/tegra234-p3701-0000.dtsi | 48 +++++
> .../nvidia/tegra234-p3737-0000+p3701-0000.dts | 184 ++++++++++++++++++
> arch/arm64/boot/dts/nvidia/tegra234.dtsi | 170 ++++++++++++++++
> 3 files changed, 402 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> index 9e4d72cfa69f..8acef87a5398 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
> @@ -61,6 +61,29 @@ mmc@3460000 {
> non-removable;
> };
>
> + padctl@3520000 {
> + vclamp-usb-supply = <&vdd_ao_1v8>;
> + avdd-usb-supply = <&vdd_ao_3v3>;
> +
> + ports {
> + usb2-0 {
> + vbus-supply = <&vdd_5v0_sys>;
> + };
> +
> + usb2-1 {
> + vbus-supply = <&vdd_5v0_sys>;
> + };
> +
> + usb2-2 {
> + vbus-supply = <&vdd_5v0_sys>;
> + };
> +
> + usb2-3 {
> + vbus-supply = <&vdd_5v0_sys>;
> + };
> + };
> + };
> +
> rtc@c2a0000 {
> status = "okay";
> };
> @@ -69,4 +92,29 @@ pmc@c360000 {
> nvidia,invert-interrupt;
> };
> };
> +
> + vdd_5v0_sys: regulator@0 {
> + compatible = "regulator-fixed";
> + regulator-name = "VIN_SYS_5V0";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + vdd_ao_1v8: regulator@1 {
> + compatible = "regulator-fixed";
> + regulator-name = "vdd-AO-1v8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + vdd_ao_3v3: regulator@2 {
> + compatible = "regulator-fixed";
> + regulator-name = "vdd-AO-3v3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> };
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> index 57ab75328814..b4630280bb32 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
> @@ -2011,6 +2011,190 @@ hda@3510000 {
> nvidia,model = "NVIDIA Jetson AGX Orin HDA";
> status = "okay";
> };
> +
> + padctl@3520000 {
> + status = "okay";
> +
> + pads {
> + usb2 {
> + lanes {
> + usb2-0 {
> + status = "okay";
> + };
> +
> + usb2-1 {
> + status = "okay";
> + };
> +
> + usb2-2 {
> + status = "okay";
> + };
> +
> + usb2-3 {
> + status = "okay";
> + };
> + };
> + };
> +
> + usb3 {
> + lanes {
> + usb3-0 {
> + status = "okay";
> + };
> +
> + usb3-1 {
> + status = "okay";
> + };
> +
> + usb3-2 {
> + status = "okay";
> + };
> + };
> + };
> + };
> +
> + ports {
> + usb2-0 {
> + mode = "otg";
> + usb-role-switch;
> + status = "okay";
> + port {
> + hs_typec_p1: endpoint {
> + remote-endpoint = <&hs_ucsi_ccg_p1>;
> + };
> + };
> + };
> +
> + usb2-1 {
> + mode = "host";
> + status = "okay";
> + port {
> + hs_typec_p0: endpoint {
> + remote-endpoint = <&hs_ucsi_ccg_p0>;
> + };
> + };
> + };
> +
> + usb2-2 {
> + mode = "host";
> + status = "okay";
> + };
> +
> + usb2-3 {
> + mode = "host";
> + status = "okay";
> + };
> +
> + usb3-0 {
> + nvidia,usb2-companion = <1>;
> + status = "okay";
> + port {
> + ss_typec_p0: endpoint {
> + remote-endpoint = <&ss_ucsi_ccg_p0>;
> + };
> + };
> + };
> +
> + usb3-1 {
> + nvidia,usb2-companion = <0>;
> + status = "okay";
> + port {
> + ss_typec_p1: endpoint {
> + remote-endpoint = <&ss_ucsi_ccg_p1>;
> + };
> + };
> + };
> +
> + usb3-2 {
> + nvidia,usb2-companion = <3>;
> + status = "okay";
> + };
> + };
> + };
> +
> + usb@3550000 {
> + status = "okay";
> +
> + phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
> + <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>;
> + phy-names = "usb2-0", "usb3-1";
> + };
> +
> + usb@3610000 {
> + status = "okay";
> +
> + phys = <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-0}>,
> + <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-1}>,
> + <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-2}>,
> + <&{/bus@0/padctl@3520000/pads/usb2/lanes/usb2-3}>,
> + <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-0}>,
> + <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-1}>,
> + <&{/bus@0/padctl@3520000/pads/usb3/lanes/usb3-2}>;
> + phy-names = "usb2-0", "usb2-1", "usb2-2", "usb2-3",
> + "usb3-0", "usb3-1", "usb3-2";
> + };
> +
> + i2c@c240000 {
> + status = "okay";
> + ucsi_ccg: ucsi_ccg@8 {

No underscores in node names.

> + compatible = "cypress,cypd4226";
> + cypress,firmware-build = "gn";
> + interrupt-parent = <&gpio>;
> + interrupts = <TEGRA234_MAIN_GPIO(Y, 4) IRQ_TYPE_LEVEL_LOW>;
> + reg = <0x08>;
> + status = "okay";

The pattern of redefining full path in Tegra is confusing - I have no
clue which of these status=okay are correct which are redundant.

Do you?

> + #address-cells = <1>;
> + #size-cells = <0>;
> + ccg_typec_con0: connector@0 {
> + compatible = "usb-c-connector";
> + reg = <0>;
> + label = "USB-C";
> + data-role = "host";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + port@0 {
> + reg = <0>;
> + #address-cells = <1>;
> + #size-cells = <0>;

Hm, why do you have here cells?

Did you test the DTS with dtbs_check?

Best regards,
Krzysztof