This patch aim at documenting USB related dt-bindings for the Cadence USB controller.
Signed-off-by: Sherry Sun <sherry....@nxp.com> --- doc/device-tree-bindings/usb/cdns-usb3.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 doc/device-tree-bindings/usb/cdns-usb3.txt diff --git a/doc/device-tree-bindings/usb/cdns-usb3.txt b/doc/device-tree-bindings/usb/cdns-usb3.txt new file mode 100644 index 0000000000..8aba13b88a --- /dev/null +++ b/doc/device-tree-bindings/usb/cdns-usb3.txt @@ -0,0 +1,53 @@ +* Cadence USB3 Controller + +Required properties: +- compatible: should contain: "cdns,usb3-1.0.0" +- reg: physical base address and size of the controller's register areas + Controller has 5 different regions: + region 1 - NONE-CORE registers area + region 2 - HOST registers area + region 3 - DEVICE registers area + region 4 - PHY registers area + region 5 - OTG registers area +- reg-names - register memory area names: + "none-core" - for NONE-CORE registers space + "xhci" - for HOST registers space + "dev" - for DEVICE registers space + "phy" - for PHY registers space + "otg" - for OTG registers space +- interrupts: interrupts used by cdns3 controller +- interrupt-parent: the interrupt parent for this module +- clocks: reference to the USB clock +- clock-names: the name of clocks +- phys: reference to the USB PHY + +Optional properties: +- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg" +- extcon: extcon phandler for cdns3 device +- power-domains: the power domain for cdns3 controller and phy + +Examples: + +usbotg3: cdns3@5b110000 { + compatible = "cdns,usb3-1.0.0"; + reg = <0x0 0x5B110000 0x0 0x10000>, + <0x0 0x5B130000 0x0 0x10000>, + <0x0 0x5B140000 0x0 0x10000>, + <0x0 0x5B160000 0x0 0x40000>, + <0x0 0x5B120000 0x0 0x10000>; + reg-names = "none-core", "xhci", "dev", "phy", "otg"; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 271 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk IMX8QM_USB3_LPM_CLK>, + <&clk IMX8QM_USB3_BUS_CLK>, + <&clk IMX8QM_USB3_ACLK>, + <&clk IMX8QM_USB3_IPG_CLK>, + <&clk IMX8QM_USB3_CORE_PCLK>; + clock-names = "usb3_lpm_clk", "usb3_bus_clk", "usb3_aclk", + "usb3_ipg_clk", "usb3_core_pclk"; + power-domains = <&pd_conn_usb2>; + phys = <&usbphy1>; + dr_mode = "otg"; + extcon = <&typec_ptn5150>; + status = "disabled"; +}; -- 2.17.1 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot