summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt')
-rw-r--r--Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt27
1 files changed, 21 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
index a057b75ba4b5..781296bfbe4f 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
@@ -27,10 +27,6 @@ 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
- 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
- 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
@@ -41,11 +37,28 @@ Optional properties:
- 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, changing this value takes effect only the SBUSCFG.AHBBRST is 0.
+ 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,
- changing this value takes effect only the SBUSCFG.AHBBRST is 0.
+ 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: disable over current detect
+- external-vbus-divider: enables off-chip resistor divider for Vbus
Example:
@@ -62,4 +75,6 @@ Example:
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>;
};