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dt-bindings: Add Broadcom STB USB PHY binding document
Add support for bcm7216 and bcm7211
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
authored by
Al Cooper
and committed by
Kishon Vijay Abraham I
b11df0c9
94583a41
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Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
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Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
···
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Broadcom STB USB PHY
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Required properties:
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- compatible: brcm,brcmstb-usb-phy
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- reg: two offset and length pairs.
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The first pair specifies a manditory set of memory mapped
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registers used for general control of the PHY.
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The second pair specifies optional registers used by some of
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the SoCs that support USB 3.x
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- #phy-cells: Shall be 1 as it expects one argument for setting
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the type of the PHY. Possible values are:
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- PHY_TYPE_USB2 for USB1.1/2.0 PHY
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- PHY_TYPE_USB3 for USB3.x PHY
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- compatible: should be one of
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"brcm,brcmstb-usb-phy"
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"brcm,bcm7216-usb-phy"
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"brcm,bcm7211-usb-phy"
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- reg and reg-names properties requirements are specific to the
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compatible string.
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"brcm,brcmstb-usb-phy":
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- reg: 1 or 2 offset and length pairs. One for the base CTRL registers
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and an optional pair for systems with USB 3.x support
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- reg-names: not specified
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"brcm,bcm7216-usb-phy":
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- reg: 3 offset and length pairs for CTRL, XHCI_EC and XHCI_GBL
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registers
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- reg-names: "ctrl", "xhci_ec", "xhci_gbl"
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"brcm,bcm7211-usb-phy":
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- reg: 5 offset and length pairs for CTRL, XHCI_EC, XHCI_GBL,
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USB_PHY and USB_MDIO registers and an optional pair
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for the BDC registers
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- reg-names: "ctrl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
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- #phy-cells: Shall be 1 as it expects one argument for setting
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the type of the PHY. Possible values are:
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- PHY_TYPE_USB2 for USB1.1/2.0 PHY
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- PHY_TYPE_USB3 for USB3.x PHY
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Optional Properties:
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- clocks : clock phandles.
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- clock-names: String, clock name.
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- interrupts: wakeup interrupt
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- interrupt-names: "wakeup"
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- brcm,ipp: Boolean, Invert Port Power.
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Possible values are: 0 (Don't invert), 1 (Invert)
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- brcm,ioc: Boolean, Invert Over Current detection.
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Possible values are: 0 (Don't invert), 1 (Invert)
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NOTE: one or both of the following two properties must be set
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- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
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- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
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- dr_mode: String, PHY Device mode.
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Possible values are: "host", "peripheral ", "drd" or "typec-pd"
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If this property is not defined, the phy will default to "host" mode.
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- brcm,syscon-piarbctl: phandle to syscon for handling config registers
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NOTE: one or both of the following two properties must be set
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- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
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- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
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+
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Example:
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···
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brcm,has-eohci;
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clocks = <&usb20>, <&usb30>;
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clock-names = "sw_usb", "sw_usb3";
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};
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usb-phy@29f0200 {
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reg = <0x29f0200 0x200>,
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<0x29c0880 0x30>,
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<0x29cc100 0x534>,
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<0x2808000 0x24>,
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<0x2980080 0x8>;
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reg-names = "ctrl",
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"xhci_ec",
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"xhci_gbl",
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"usb_phy",
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"usb_mdio";
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brcm,ioc = <0x0>;
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brcm,ipp = <0x0>;
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compatible = "brcm,bcm7211-usb-phy";
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interrupts = <0x30>;
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interrupt-parent = <&vpu_intr1_nosec_intc>;
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interrupt-names = "wake";
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#phy-cells = <0x1>;
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brcm,has-xhci;
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syscon-piarbctl = <&syscon_piarbctl>;
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clocks = <&scmi_clk 256>;
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clock-names = "sw_usb";
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};