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Should be one - of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this - property the PORTSC register won't be touched. -- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg" - -Deprecated properties: -- usb-phy: phandle for the PHY device. Use "phys" instead. -- fsl,usbphy: phandle of usb phy that connects to the port. Use "phys" instead. - -Optional properties: -- clocks: reference to the USB clock -- phys: reference to the USB PHY -- phy-names: should be "usb-phy" -- vbus-supply: reference to the VBUS regulator -- maximum-speed: limit the maximum connection speed to "full-speed". -- tpl-support: TPL (Targeted Peripheral List) feature for targeted hosts -- itc-setting: interrupt threshold control register control, the setting - should be aligned with ITC bits at register USBCMD. -- ahb-burst-config: it is vendor dependent, the required value should be - aligned with AHBBRST at SBUSCFG, the range is from 0x0 to 0x7. This - property is used to change AHB burst configuration, check the chipidea - spec for meaning of each value. If this property is not existed, it - will use the reset value. -- tx-burst-size-dword: it is vendor dependent, the tx burst size in dword - (4 bytes), This register represents the maximum length of a the burst - in 32-bit words while moving data from system memory to the USB - bus, the value of this property will only take effect if property - "ahb-burst-config" is set to 0, if this property is missing the reset - default of the hardware implementation will be used. -- rx-burst-size-dword: it is vendor dependent, the rx burst size in dword - (4 bytes), This register represents the maximum length of a the burst - in 32-bit words while moving data from the USB bus to system memory, - the value of this property will only take effect if property - "ahb-burst-config" is set to 0, if this property is missing the reset - default of the hardware implementation will be used. -- extcon: phandles to external connector devices. First phandle should point to - external connector, which provide "USB" cable events, the second should point - to external connector device, which provide "USB-HOST" cable events. If one - of the external connector devices is not required, empty <0> phandle should - be specified. -- phy-clkgate-delay-us: the delay time (us) between putting the PHY into - low power mode and gating the PHY clock. -- non-zero-ttctrl-ttha: after setting this property, the value of register - ttctrl.ttha will be 0x7f; if not, the value will be 0x0, this is the default - value. It needs to be very carefully for setting this property, it is - recommended that consult with your IC engineer before setting this value. - On the most of chipidea platforms, the "usage_tt" flag at RTL is 0, so this - property only affects siTD. - If this property is not set, the max packet size is 1023 bytes, and if - the total of packet size for pervious transactions are more than 256 bytes, - it can't accept any transactions within this frame. The use case is single - transaction, but higher frame rate. - If this property is set, the max packet size is 188 bytes, it can handle - more transactions than above case, it can accept transactions until it - considers the left room size within frame is less than 188 bytes, software - needs to make sure it does not send more than 90% - maximum_periodic_data_per_frame. The use case is multiple transactions, but - less frame rate. -- mux-controls: The mux control for toggling host/device output of this - controller. It's expected that a mux state of 0 indicates device mode and a - mux state of 1 indicates host mode. -- mux-control-names: Shall be "usb_switch" if mux-controls is specified. -- pinctrl-names: Names for optional pin modes in "default", "host", "device". - In case of HSIC-mode, "idle" and "active" pin modes are mandatory. In this - case, the "idle" state needs to pull down the data and strobe pin - and the "active" state needs to pull up the strobe pin. -- pinctrl-n: alternate pin modes - -i.mx specific properties -- fsl,usbmisc: phandler of non-core register device, with one - argument that indicate usb controller index -- disable-over-current: disable over current detect -- over-current-active-low: over current signal polarity is active low. -- over-current-active-high: over current signal polarity is active high. - It's recommended to specify the over current polarity. -- power-active-high: power signal polarity is active high -- external-vbus-divider: enables off-chip resistor divider for Vbus -- samsung,picophy-pre-emp-curr-control: HS Transmitter Pre-Emphasis Current - Control. This signal controls the amount of current sourced to the - USB_OTG*_DP and USB_OTG*_DN pins after a J-to-K or K-to-J transition. - The range is from 0x0 to 0x3, the default value is 0x1. - Details can refer to TXPREEMPAMPTUNE0 bits of USBNC_n_PHY_CFG1. -- samsung,picophy-dc-vol-level-adjust: HS DC Voltage Level Adjustment. - Adjust the high-speed transmitter DC level voltage. - The range is from 0x0 to 0xf, the default value is 0x3. - Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1. - -Example: - - usb@f7ed0000 { - compatible = "chipidea,usb2"; - reg = <0xf7ed0000 0x10000>; - interrupts = ; - clocks = <&chip CLKID_USB0>; - phys = <&usb_phy0>; - phy-names = "usb-phy"; - vbus-supply = <®_usb0_vbus>; - itc-setting = <0x4>; /* 4 micro-frames */ - /* Incremental burst of unspecified length */ - ahb-burst-config = <0x0>; - tx-burst-size-dword = <0x10>; /* 64 bytes */ - rx-burst-size-dword = <0x10>; - extcon = <0>, <&usb_id>; - phy-clkgate-delay-us = <400>; - mux-controls = <&usb_switch>; - mux-control-names = "usb_switch"; - }; - -Example for HSIC: - - usb@2184400 { - compatible = "fsl,imx6q-usb", "fsl,imx27-usb"; - reg = <0x02184400 0x200>; - interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clks IMX6QDL_CLK_USBOH3>; - fsl,usbphy = <&usbphynop1>; - fsl,usbmisc = <&usbmisc 2>; - phy_type = "hsic"; - dr_mode = "host"; - ahb-burst-config = <0x0>; - tx-burst-size-dword = <0x10>; - rx-burst-size-dword = <0x10>; - pinctrl-names = "idle", "active"; - pinctrl-0 = <&pinctrl_usbh2_idle>; - pinctrl-1 = <&pinctrl_usbh2_active>; - #address-cells = <1>; - #size-cells = <0>; - - usbnet: ethernet@1 { - compatible = "usb424,9730"; - reg = <1>; - }; - }; diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml new file mode 100644 index 000000000000..ed03649f17a6 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml @@ -0,0 +1,341 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: USB2 ChipIdea USB controller for ci13xxx Binding + +maintainers: + - Xu Yang + +properties: + compatible: + oneOf: + - enum: + - chipidea,usb2 + - lsi,zevio-usb + - nvidia,tegra20-udc + - nvidia,tegra30-udc + - nvidia,tegra114-udc + - nvidia,tegra124-udc + - qcom,ci-hdrc + - items: + - enum: + - fsl,imx23-usb + - fsl,imx25-usb + - fsl,imx28-usb + - fsl,imx6q-usb + - fsl,imx6sl-usb + - fsl,imx6sx-usb + - fsl,imx6ul-usb + - fsl,imx7d-usb + - const: fsl,imx27-usb + - items: + - const: fsl,imx7ulp-usb + - const: fsl,imx6ul-usb + - items: + - const: xlnx,zynq-usb-2.20a + - const: chipidea,usb2 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 1 + maxItems: 2 + + dr_mode: true + + phy_type: true + + itc-setting: + description: + interrupt threshold control register control, the setting should be + aligned with ITC bits at register USBCMD. + $ref: /schemas/types.yaml#/definitions/uint32 + + ahb-burst-config: + description: + it is vendor dependent, the required value should be aligned with + AHBBRST at SBUSCFG, the range is from 0x0 to 0x7. This property is + used to change AHB burst configuration, check the chipidea spec for + meaning of each value. If this property is not existed, it will use + the reset value. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0x0 + maximum: 0x7 + + tx-burst-size-dword: + description: + it is vendor dependent, the tx burst size in dword (4 bytes), This + register represents the maximum length of a the burst in 32-bit + words while moving data from system memory to the USB bus, the value + of this property will only take effect if property "ahb-burst-config" + is set to 0, if this property is missing the reset default of the + hardware implementation will be used. + $ref: /schemas/types.yaml#/definitions/uint32 + + rx-burst-size-dword: + description: + it is vendor dependent, the rx burst size in dword (4 bytes), This + register represents the maximum length of a the burst in 32-bit words + while moving data from the USB bus to system memory, the value of + this property will only take effect if property "ahb-burst-config" + is set to 0, if this property is missing the reset default of the + hardware implementation will be used. + $ref: /schemas/types.yaml#/definitions/uint32 + + extcon: + description: | + Phandles to external connector devices. First phandle should point + to external connector, which provide "USB" cable events, the second + should point to external connector device, which provide "USB-HOST" + cable events. If one of the external connector devices is not + required, empty <0> phandle should be specified. + + phy-clkgate-delay-us: + description: | + The delay time (us) between putting the PHY into low power mode and + gating the PHY clock. + + non-zero-ttctrl-ttha: + description: | + After setting this property, the value of register ttctrl.ttha + will be 0x7f; if not, the value will be 0x0, this is the default + value. It needs to be very carefully for setting this property, it + is recommended that consult with your IC engineer before setting + this value. On the most of chipidea platforms, the "usage_tt" flag + at RTL is 0, so this property only affects siTD. + + If this property is not set, the max packet size is 1023 bytes, and + if the total of packet size for pervious transactions are more than + 256 bytes, it can't accept any transactions within this frame. The + use case is single transaction, but higher frame rate. + + If this property is set, the max packet size is 188 bytes, it can + handle more transactions than above case, it can accept transactions + until it considers the left room size within frame is less than 188 + bytes, software needs to make sure it does not send more than 90% + maximum_periodic_data_per_frame. The use case is multiple + transactions, but less frame rate. + + mux-controls: + description: | + The mux control for toggling host/device output of this controller. + It's expected that a mux state of 0 indicates device mode and a mux + state of 1 indicates host mode. + + mux-control-names: + const: usb_switch + + pinctrl-names: + description: | + Names for optional pin modes in "default", "host", "device". + In case of HSIC-mode, "idle" and "active" pin modes are mandatory. + In this case, the "idle" state needs to pull down the data and + strobe pin and the "active" state needs to pull up the strobe pin. + + pinctrl-0: + maxItems: 1 + + pinctrl-1: + maxItems: 1 + + phys: + maxItems: 1 + + phy-names: + const: usb-phy + + vbus-supply: + description: reference to the VBUS regulator. + + fsl,usbmisc: + description: + Phandler of non-core register device, with one argument that + indicate usb controller index + $ref: /schemas/types.yaml#/definitions/phandle-array + + disable-over-current: + description: disable over current detect + + over-current-active-low: + description: over current signal polarity is active low + + over-current-active-high: + description: | + Over current signal polarity is active high. It's recommended to + specify the over current polarity. + + power-active-high: + description: power signal polarity is active high + + external-vbus-divider: + description: enables off-chip resistor divider for Vbus + + samsung,picophy-pre-emp-curr-control: + description: | + HS Transmitter Pre-Emphasis Current Control. This signal controls + the amount of current sourced to the USB_OTG*_DP and USB_OTG*_DN + pins after a J-to-K or K-to-J transition. The range is from 0x0 to + 0x3, the default value is 0x1. Details can refer to TXPREEMPAMPTUNE0 + bits of USBNC_n_PHY_CFG1. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0x0 + maximum: 0x3 + + samsung,picophy-dc-vol-level-adjust: + description: | + HS DC Voltage Level Adjustment. Adjust the high-speed transmitter DC + level voltage. The range is from 0x0 to 0xf, the default value is + 0x3. Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0x0 + maximum: 0xf + + usb-phy: + description: phandle for the PHY device. Use "phys" instead. + $ref: /schemas/types.yaml#/definitions/phandle + deprecated: true + + fsl,usbphy: + description: phandle of usb phy that connects to the port. Use "phys" instead. + $ref: /schemas/types.yaml#/definitions/phandle + deprecated: true + +patternProperties: + "ethernet@[0-9a-f]$": + description: The hard wired USB devices + type: object + $ref: /schemas/net/microchip,lan95xx.yaml + +required: + - compatible + - reg + - interrupts + +allOf: + - $ref: usb-hcd.yaml# + - $ref: usb-drd.yaml# + - if: + properties: + mux-controls: + true + then: + properties: + mux-control-names: + const: usb_switch + - if: + properties: + phy_type: + const: hsic + + required: + - phy_type + then: + properties: + pinctrl-names: + items: + - const: idle + - const: active + else: + properties: + pinctrl-names: + oneOf: + - items: + - const: default + - enum: + - host + - device + - items: + - const: default + - if: + properties: + compatible: + contains: + enum: + - chipidea,usb2 + - lsi,zevio-usb + - nvidia,tegra20-udc + - nvidia,tegra30-udc + - nvidia,tegra114-udc + - nvidia,tegra124-udc + - qcom,ci-hdrc + - xlnx,zynq-usb-2.20a + then: + properties: + fsl,usbmisc: false + disable-over-current: false + over-current-active-low: false + over-current-active-high: false + power-active-high: false + external-vbus-divider: false + samsung,picophy-pre-emp-curr-control: false + samsung,picophy-dc-vol-level-adjust: false + +additionalProperties: false + +examples: + - | + #include + #include + + usb@f7ed0000 { + compatible = "chipidea,usb2"; + reg = <0xf7ed0000 0x10000>; + interrupts = ; + clocks = <&chip CLKID_USB0>; + phys = <&usb_phy0>; + phy-names = "usb-phy"; + vbus-supply = <®_usb0_vbus>; + itc-setting = <0x4>; /* 4 micro-frames */ + /* Incremental burst of unspecified length */ + ahb-burst-config = <0x0>; + tx-burst-size-dword = <0x10>; /* 64 bytes */ + rx-burst-size-dword = <0x10>; + extcon = <0>, <&usb_id>; + phy-clkgate-delay-us = <400>; + mux-controls = <&usb_switch>; + mux-control-names = "usb_switch"; + }; + + # Example for HSIC: + - | + #include + #include + + usb@2184400 { + compatible = "fsl,imx6q-usb", "fsl,imx27-usb"; + reg = <0x02184400 0x200>; + interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6QDL_CLK_USBOH3>; + fsl,usbphy = <&usbphynop1>; + fsl,usbmisc = <&usbmisc 2>; + phy_type = "hsic"; + dr_mode = "host"; + ahb-burst-config = <0x0>; + tx-burst-size-dword = <0x10>; + rx-burst-size-dword = <0x10>; + pinctrl-names = "idle", "active"; + pinctrl-0 = <&pinctrl_usbh2_idle>; + pinctrl-1 = <&pinctrl_usbh2_active>; + #address-cells = <1>; + #size-cells = <0>; + + usbnet: ethernet@1 { + compatible = "usb424,9730"; + reg = <1>; + }; + }; + +...