Re: [PATCH 4/5] arm64: dts: ti: k3-am642-sk: Enable USB Super-Speed HOST port
From: Nishanth Menon <nm@ti.com>
Date: 2021-05-12 20:34:33
Also in:
linux-devicetree, lkml
On 20:31-20210512, Kishon Vijay Abraham I wrote:
quoted hunk ↗ jump to hunk
Enable USB Super-Speed HOST port. Signed-off-by: Kishon Vijay Abraham I <redacted> Signed-off-by: Aswath Govindraju <redacted> --- arch/arm64/boot/dts/ti/k3-am642-sk.dts | 39 ++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts index 8424cd071955..056c1b2df559 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts@@ -5,6 +5,8 @@ /dts-v1/; +#include <dt-bindings/mux/ti-serdes.h> +#include <dt-bindings/phy/phy.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/net/ti-dp83867.h> #include "k3-am642.dtsi"@@ -85,6 +87,12 @@ >; }; + main_usb0_pins_default: main-usb0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */ + >; + }; + main_i2c1_pins_default: main-i2c1-pins-default { pinctrl-single,pins = < AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */@@ -235,6 +243,37 @@ disable-wp; }; +&serdes_ln_ctrl { + idle-states = <AM64_SERDES0_LANE0_USB>; +}; + +&serdes_wiz0 { + status = "okay";
not sure I understand why default of okay needs to be explicitly stated as okay in board dts.
+};
+
+&serdes0 {
+ serdes0_usb_link: phy@0 {
+ reg = <0>;
+ cdns,num-lanes = <1>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_USB3>;
+ resets = <&serdes_wiz0 1>;
+ };
+};
+
+&usbss0 {
+ ti,vbus-divider;
+};
+
+&usb0 {
+ dr_mode = "host";
+ maximum-speed = "super-speed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_usb0_pins_default>;
+ phys = <&serdes0_usb_link>;
+ phy-names = "cdns3,usb3-phy";
+};
+
&cpsw3g {
pinctrl-names = "default";
pinctrl-0 = <&mdio1_pins_default
--
2.17.1-- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel