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    Subject[PATCH v3 6/7] arm64: dts: ti: k3-j721e: Enable Super-Speed support for USB0
    Date
    USB0 supports super-speed mode on the EVM. Enable that.
    On the EVM, USB0 uses SERDES3 for super-speed lane.

    Since USB0 is a type-C port, it needs to support lane swapping
    for cable flip support. This is provided using SERDES lane
    swap feature. Provide the Type-C cable orientation GPIO
    to the SERDES Wrapper driver.

    Signed-off-by: Roger Quadros <rogerq@ti.com>
    Signed-off-by: Sekhar Nori <nsekhar@ti.com>
    ---
    .../dts/ti/k3-j721e-common-proc-board.dts | 32 +++++++++++++++++--
    1 file changed, 30 insertions(+), 2 deletions(-)

    diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
    index 98e5e17e3ff7..55c98688eceb 100644
    --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
    +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
    @@ -60,6 +60,7 @@
    main_usbss0_pins_default: main_usbss0_pins_default {
    pinctrl-single,pins = <
    J721E_IOPAD(0x290, PIN_OUTPUT, 0) /* (U6) USB0_DRVVBUS */
    + J721E_IOPAD(0x210, PIN_INPUT, 7) /* (W3) MCAN1_RX.GPIO1_3 */
    >;
    };

    @@ -335,16 +336,43 @@
    status = "disabled";
    };

    +&usb_serdes_mux {
    + idle-states = <1>, <0>; /* USB0 to SERDES3, USB1 to SERDES1 */
    +};
    +
    +&serdes_ln_ctrl {
    + idle-states = <SERDES0_LANE0_PCIE0_LANE0>, <SERDES0_LANE1_PCIE0_LANE1>,
    + <SERDES1_LANE0_PCIE1_LANE0>, <SERDES1_LANE1_PCIE1_LANE1>,
    + <SERDES2_LANE0_PCIE2_LANE0>, <SERDES2_LANE1_PCIE2_LANE1>,
    + <SERDES3_LANE0_USB3_0_SWAP>, <SERDES3_LANE1_USB3_0>,
    + <SERDES4_LANE0_EDP_LANE0>, <SERDES4_LANE1_EDP_LANE1>, <SERDES4_LANE2_EDP_LANE2>, <SERDES4_LANE3_EDP_LANE3>;
    +};
    +
    +&serdes_wiz3 {
    + typec-dir-gpios = <&main_gpio1 3 GPIO_ACTIVE_HIGH>;
    +};
    +
    +&serdes3 {
    + serdes3_usb_link: link@0 {
    + reg = <0>;
    + cdns,num-lanes = <2>;
    + #phy-cells = <0>;
    + cdns,phy-type = <PHY_TYPE_USB3>;
    + resets = <&serdes_wiz3 1>, <&serdes_wiz3 2>;
    + };
    +};
    +
    &usbss0 {
    pinctrl-names = "default";
    pinctrl-0 = <&main_usbss0_pins_default>;
    - ti,usb2-only;
    ti,vbus-divider;
    };

    &usb0 {
    dr_mode = "otg";
    - maximum-speed = "high-speed";
    + maximum-speed = "super-speed";
    + phys = <&serdes3_usb_link>;
    + phy-names = "cdns3,usb3-phy";
    };

    &usbss1 {
    --
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