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Diffstat (limited to 'Documentation/devicetree/bindings/phy')
8 files changed, 324 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt new file mode 100644 index 000000000..761c4bc24 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt @@ -0,0 +1,47 @@ +Broadcom Cygnus PCIe PHY + +Required properties: +- compatible: must be "brcm,cygnus-pcie-phy" +- reg: base address and length of the PCIe PHY block +- #address-cells: must be 1 +- #size-cells: must be 0 + +Each PCIe PHY should be represented by a child node + +Required properties For the child node: +- reg: the PHY ID +0 - PCIe RC 0 +1 - PCIe RC 1 +- #phy-cells: must be 0 + +Example: + pcie_phy: phy@0301d0a0 { + compatible = "brcm,cygnus-pcie-phy"; + reg = <0x0301d0a0 0x14>; + + pcie0_phy: phy@0 { + reg = <0>; + #phy-cells = <0>; + }; + + pcie1_phy: phy@1 { + reg = <1>; + #phy-cells = <0>; + }; + }; + + /* users of the PCIe phy */ + + pcie0: pcie@18012000 { + ... + ... + phys = <&pcie0_phy>; + phy-names = "pcie-phy"; + }; + + pcie1: pcie@18013000 { + ... + ... + phys = <pcie1_phy>; + phy-names = "pcie-phy"; + }; diff --git a/Documentation/devicetree/bindings/phy/calxeda-combophy.txt b/Documentation/devicetree/bindings/phy/calxeda-combophy.txt new file mode 100644 index 000000000..6622bdb2e --- /dev/null +++ b/Documentation/devicetree/bindings/phy/calxeda-combophy.txt @@ -0,0 +1,17 @@ +Calxeda Highbank Combination Phys for SATA + +Properties: +- compatible : Should be "calxeda,hb-combophy" +- #phy-cells: Should be 1. +- reg : Address and size for Combination Phy registers. +- phydev: device ID for programming the combophy. + +Example: + + combophy5: combo-phy@fff5d000 { + compatible = "calxeda,hb-combophy"; + #phy-cells = <1>; + reg = <0xfff5d000 0x1000>; + phydev = <31>; + }; + diff --git a/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt new file mode 100644 index 000000000..f37b3a863 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt @@ -0,0 +1,20 @@ +TI Keystone USB PHY + +Required properties: + - compatible: should be "ti,keystone-usbphy". + - #address-cells, #size-cells : should be '1' if the device has sub-nodes + with 'reg' property. + - reg : Address and length of the usb phy control register set. + +The main purpose of this PHY driver is to enable the USB PHY reference clock +gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just +an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3 +phy node in the USB Glue layer driver node. + +usb_phy: usb_phy@2620738 { + compatible = "ti,keystone-usbphy"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x2620738 32>; + status = "disabled"; +}; diff --git a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt new file mode 100644 index 000000000..379b84a56 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt @@ -0,0 +1,21 @@ +* Freescale MXS USB Phy Device + +Required properties: +- compatible: should contain: + * "fsl,imx23-usbphy" for imx23 and imx28 + * "fsl,imx6q-usbphy" for imx6dq and imx6dl + * "fsl,imx6sl-usbphy" for imx6sl + * "fsl,vf610-usbphy" for Vybrid vf610 + * "fsl,imx6sx-usbphy" for imx6sx + "fsl,imx23-usbphy" is still a fallback for other strings +- reg: Should contain registers location and length +- interrupts: Should contain phy interrupt +- fsl,anatop: phandle for anatop register, it is only for imx6 SoC series + +Example: +usbphy1: usbphy@020c9000 { + compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy"; + reg = <0x020c9000 0x1000>; + interrupts = <0 44 0x04>; + fsl,anatop = <&anatop>; +}; diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt new file mode 100644 index 000000000..a9aa79fb9 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt @@ -0,0 +1,72 @@ +Tegra SOC USB PHY + +The device node for Tegra SOC USB PHY: + +Required properties : + - compatible : For Tegra20, must contain "nvidia,tegra20-usb-phy". + For Tegra30, must contain "nvidia,tegra30-usb-phy". Otherwise, must contain + "nvidia,<chip>-usb-phy" plus at least one of the above, where <chip> is + tegra114, tegra124, tegra132, or tegra210. + - reg : Defines the following set of registers, in the order listed: + - The PHY's own register set. + Always present. + - The register set of the PHY containing the UTMI pad control registers. + Present if-and-only-if phy_type == utmi. + - phy_type : Should be one of "utmi", "ulpi" or "hsic". + - clocks : Defines the clocks listed in the clock-names property. + - clock-names : The following clock names must be present: + - reg: The clock needed to access the PHY's own registers. This is the + associated EHCI controller's clock. Always present. + - pll_u: PLL_U. Always present. + - timer: The timeout clock (clk_m). Present if phy_type == utmi. + - utmi-pads: The clock needed to access the UTMI pad control registers. + Present if phy_type == utmi. + - ulpi-link: The clock Tegra provides to the ULPI PHY (cdev2). + Present if phy_type == ulpi, and ULPI link mode is in use. + - resets : Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. + - reset-names : Must include the following entries: + - usb: The PHY's own reset signal. + - utmi-pads: The reset of the PHY containing the chip-wide UTMI pad control + registers. Required even if phy_type == ulpi. + +Required properties for phy_type == ulpi: + - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. + +Required PHY timing params for utmi phy, for all chips: + - nvidia,hssync-start-delay : Number of 480 Mhz clock cycles to wait before + start of sync launches RxActive + - nvidia,elastic-limit : Variable FIFO Depth of elastic input store + - nvidia,idle-wait-delay : Number of 480 Mhz clock cycles of idle to wait + before declare IDLE. + - nvidia,term-range-adj : Range adjusment on terminations + - Either one of the following for HS driver output control: + - nvidia,xcvr-setup : integer, uses the provided value. + - nvidia,xcvr-setup-use-fuses : boolean, indicates that the value is read + from the on-chip fuses + If both are provided, nvidia,xcvr-setup-use-fuses takes precedence. + - nvidia,xcvr-lsfslew : LS falling slew rate control. + - nvidia,xcvr-lsrslew : LS rising slew rate control. + +Required PHY timing params for utmi phy, only on Tegra30 and above: + - nvidia,xcvr-hsslew : HS slew rate control. + - nvidia,hssquelch-level : HS squelch detector level. + - nvidia,hsdiscon-level : HS disconnect detector level. + +Optional properties: + - nvidia,has-legacy-mode : boolean indicates whether this controller can + operate in legacy mode (as APX 2500 / 2600). In legacy mode some + registers are accessed through the APB_MISC base address instead of + the USB controller. + - nvidia,is-wired : boolean. Indicates whether we can do certain kind of power + optimizations for the devices that are always connected. e.g. modem. + - dr_mode : dual role mode. Indicates the working mode for the PHY. Can be + "host", "peripheral", or "otg". Defaults to "host" if not defined. + host means this is a host controller + peripheral means it is device controller + otg means it can operate as either ("on the go") + - nvidia,has-utmi-pad-registers : boolean indicates whether this controller + contains the UTMI pad control registers common to all USB controllers. + +VBUS control (required for dr_mode == otg, optional for dr_mode == host): + - vbus-supply: regulator for VBUS diff --git a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt new file mode 100644 index 000000000..00100cf3e --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt @@ -0,0 +1,68 @@ +mt65xx USB3.0 PHY binding +-------------------------- + +This binding describes a usb3.0 phy for mt65xx platforms of Medaitek SoC. + +Required properties (controller (parent) node): + - compatible : should be "mediatek,mt8173-u3phy" + - reg : offset and length of register for phy, exclude port's + register. + - clocks : a list of phandle + clock-specifier pairs, one for each + entry in clock-names + - clock-names : must contain + "u3phya_ref": for reference clock of usb3.0 analog phy. + +Required nodes : a sub-node is required for each port the controller + provides. Address range information including the usual + 'reg' property is used inside these nodes to describe + the controller's topology. + +Required properties (port (child) node): +- reg : address and length of the register set for the port. +- #phy-cells : should be 1 (See second example) + cell after port phandle is phy type from: + - PHY_TYPE_USB2 + - PHY_TYPE_USB3 + +Example: + +u3phy: usb-phy@11290000 { + compatible = "mediatek,mt8173-u3phy"; + reg = <0 0x11290000 0 0x800>; + clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>; + clock-names = "u3phya_ref"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + status = "okay"; + + phy_port0: port@11290800 { + reg = <0 0x11290800 0 0x800>; + #phy-cells = <1>; + status = "okay"; + }; + + phy_port1: port@11291000 { + reg = <0 0x11291000 0 0x800>; + #phy-cells = <1>; + status = "okay"; + }; +}; + +Specifying phy control of devices +--------------------------------- + +Device nodes should specify the configuration required in their "phys" +property, containing a phandle to the phy port node and a device type; +phy-names for each port are optional. + +Example: + +#include <dt-bindings/phy/phy.h> + +usb30: usb@11270000 { + ... + phys = <&phy_port0 PHY_TYPE_USB3>; + phy-names = "usb3-0"; + ... +}; diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-8x16-phy.txt b/Documentation/devicetree/bindings/phy/qcom,usb-8x16-phy.txt new file mode 100644 index 000000000..2cb2168ce --- /dev/null +++ b/Documentation/devicetree/bindings/phy/qcom,usb-8x16-phy.txt @@ -0,0 +1,76 @@ +Qualcomm's APQ8016/MSM8916 USB transceiver controller + +- compatible: + Usage: required + Value type: <string> + Definition: Should contain "qcom,usb-8x16-phy". + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: USB PHY base address and length of the register map + +- clocks: + Usage: required + Value type: <prop-encoded-array> + Definition: See clock-bindings.txt section "consumers". List of + two clock specifiers for interface and core controller + clocks. + +- clock-names: + Usage: required + Value type: <string> + Definition: Must contain "iface" and "core" strings. + +- vddcx-supply: + Usage: required + Value type: <phandle> + Definition: phandle to the regulator VDCCX supply node. + +- v1p8-supply: + Usage: required + Value type: <phandle> + Definition: phandle to the regulator 1.8V supply node. + +- v3p3-supply: + Usage: required + Value type: <phandle> + Definition: phandle to the regulator 3.3V supply node. + +- resets: + Usage: required + Value type: <prop-encoded-array> + Definition: See reset.txt section "consumers". PHY reset specifier. + +- reset-names: + Usage: required + Value type: <string> + Definition: Must contain "phy" string. + +- switch-gpio: + Usage: optional + Value type: <prop-encoded-array> + Definition: Some boards are using Dual SPDT USB Switch, witch is + controlled by GPIO to de/multiplex D+/D- USB lines + between connectors. + +Example: + usb_phy: phy@78d9000 { + compatible = "qcom,usb-8x16-phy"; + reg = <0x78d9000 0x400>; + + vddcx-supply = <&pm8916_s1_corner>; + v1p8-supply = <&pm8916_l7>; + v3p3-supply = <&pm8916_l13>; + + clocks = <&gcc GCC_USB_HS_AHB_CLK>, + <&gcc GCC_USB_HS_SYSTEM_CLK>; + clock-names = "iface", "core"; + + resets = <&gcc GCC_USB2A_PHY_BCR>; + reset-names = "phy"; + + // D+/D- lines: 1 - Routed to HUB, 0 - Device connector + switch-gpio = <&pm8916_gpios 4 GPIO_ACTIVE_HIGH>; + }; + diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt index 60c6f2a63..0289d3b07 100644 --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt @@ -44,6 +44,9 @@ Required properties: - the "ref" clock is used to get the rate of the clock provided to the PHY module +Optional properties: +- vbus-supply: power-supply phandle for vbus power source + The first phandle argument in the PHY specifier identifies the PHY, its meaning is compatible dependent. For the currently supported SoCs (Exynos 4210 and Exynos 4212) it is as follows: |