It is used to change ahb burst configuration for platforms, it is vendor specific. Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 4159c8c..d52a747 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -32,6 +32,11 @@ Optional properties: - 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 + 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. Example: @@ -44,4 +49,6 @@ Example: phy-names = "usb-phy"; vbus-supply = <®_usb0_vbus>; gadget-itc-setting = <0x4>; /* 4 micro-frames */ + /* Incremental burst of unspecified length */ + ahb-burst-config = <0x0>; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
