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.c...@freescale.com>
---
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
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