It is used to override the default setting for burst size, changing burst size takes effect only when the SBUSCFG.AHBBRST = 0. Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 3c377a3..0f0929c 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -34,6 +34,10 @@ Optional properties: 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. +- tx-burst-size-dword: it is vendor dependent, the tx burst size in dword + (4 bytes). +- rx-burst-size-dword: it is vendor dependent, the rx burst size in dword + (4 bytes). Example: @@ -48,4 +52,6 @@ Example: 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>; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
