It is used to change ahb burst configuration for platforms.
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
index c21171e..a548502 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt
@@ -22,6 +22,8 @@ Optional properties:
- tpl-support: TPL (Targeted Peripheral List) feature for targeted hosts
- gadget-itc-setting: the ITC setting for gadget, the required value
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.
Examples:
usb@02184000 { /* USB OTG */
@@ -35,4 +37,5 @@ usb@02184000 { /* USB OTG */
maximum-speed = "full-speed";
tpl-support;
gadget-itc-setting = <0x4>; /* 4 micro-frames */
+ ahb-burst-config = <0x0>; /* Incremental burst of unspecified length */
};
--
1.9.1
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