On 5.05.2023 08:40, Bhupesh Sharma wrote:
> Add the Embedded USB Debugger(EUD) device tree node for
> SM6115 / SM4250 SoC.
>
> The node contains EUD base register region, EUD mode manager
> register region and TCSR Base register region along with the
> interrupt entry.
>
> Also add the typec connector node for EUD which is attached to
> EUD node via port. EUD is also attached to DWC3 node via port.
>
> To enable the role switch, we need to set dr_mode = "otg" property
> for 'usb_dwc3' sub-node in the board dts file.
>
> Also the EUD device can be enabled on a board once linux is boot'ed
> by setting:
> $ echo 1 > /sys/bus/platform/drivers/qcom_eud/../enable
>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Konrad
> arch/arm64/boot/dts/qcom/sm6115.dtsi | 51 ++++++++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> index f67863561f3f..61a0af33ca43 100644
> --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
> @@ -180,6 +180,18 @@ core3 {
> };
> };
>
> + eud_typec: connector {
> + compatible = "usb-c-connector";
> +
> + ports {
> + port@0 {
> + con_eud: endpoint {
> + remote-endpoint = <&eud_con>;
> + };
> + };
> + };
> + };
> +
> firmware {
> scm: scm {
> compatible = "qcom,scm-sm6115", "qcom,scm";
> @@ -647,6 +659,38 @@ gcc: clock-controller@1400000 {
> #power-domain-cells = <1>;
> };
>
> + eud: eud@1610000 {
> + compatible = "qcom,sm6115-eud", "qcom,eud";
> + reg = <0x0 0x01610000 0x0 0x2000>,
> + <0x0 0x01612000 0x0 0x1000>,
> + <0x0 0x003c0000 0x0 0x40000>;
> + reg-names = "eud-base", "eud-mode-mgr", "tcsr-base";
> + interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
> + qcom,secure-mode-enable;
> + status = "disabled";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + eud_ep: endpoint {
> + remote-endpoint = <&usb2_role_switch>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + eud_con: endpoint {
> + remote-endpoint = <&con_eud>;
> + };
> + };
> + };
> + };
> +
> usb_hsphy: phy@1613000 {
> compatible = "qcom,sm6115-qusb2-phy";
> reg = <0x0 0x01613000 0x0 0x180>;
> @@ -1144,6 +1188,13 @@ usb_dwc3: usb@4e00000 {
> snps,has-lpm-erratum;
> snps,hird-threshold = /bits/ 8 <0x10>;
> snps,usb3_lpm_capable;
> + usb-role-switch;
> +
> + port {
> + usb2_role_switch: endpoint {
> + remote-endpoint = <&eud_ep>;
> + };
> + };
> };
> };
>
