diff options
Diffstat (limited to 'dts/Bindings/usb/ci-hdrc-usb2.txt')
-rw-r--r-- | dts/Bindings/usb/ci-hdrc-usb2.txt | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/dts/Bindings/usb/ci-hdrc-usb2.txt b/dts/Bindings/usb/ci-hdrc-usb2.txt index 553e2fae3a..781296bfbe 100644 --- a/dts/Bindings/usb/ci-hdrc-usb2.txt +++ b/dts/Bindings/usb/ci-hdrc-usb2.txt @@ -6,6 +6,7 @@ Required properties: "lsi,zevio-usb" "qcom,ci-hdrc" "chipidea,usb2" + "xlnx,zynq-usb-2.20a" - reg: base address and length of the registers - interrupts: interrupt for the USB controller @@ -26,10 +27,38 @@ Optional properties: - 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 -- fsl,usbmisc: (FSL only) phandler of non-core register device, with one +- 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. + +i.mx specific properties +- fsl,usbmisc: phandler of non-core register device, with one argument that indicate usb controller index -- disable-over-current: (FSL only) disable over current detect -- external-vbus-divider: (FSL only) enables off-chip resistor divider for Vbus +- disable-over-current: disable over current detect +- external-vbus-divider: enables off-chip resistor divider for Vbus Example: @@ -41,4 +70,11 @@ Example: phys = <&usb_phy0>; phy-names = "usb-phy"; vbus-supply = <®_usb0_vbus>; + gadget-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>; }; |