From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.chen@freescale.com (Peter Chen) Date: Thu, 19 Mar 2015 09:19:21 +0800 Subject: [PATCH 10/12] Doc: usb: ci-hdrc-imx: add tx(rx)-burst-config-dword for binding doc In-Reply-To: <1426727963-32280-1-git-send-email-peter.chen@freescale.com> References: <1426727963-32280-1-git-send-email-peter.chen@freescale.com> Message-ID: <1426727963-32280-11-git-send-email-peter.chen@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt index a548502..892bac8 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt @@ -24,6 +24,10 @@ 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) Examples: usb at 02184000 { /* USB OTG */ @@ -38,4 +42,6 @@ usb at 02184000 { /* USB OTG */ tpl-support; gadget-itc-setting = <0x4>; /* 4 micro-frames */ ahb-burst-config = <0x0>; /* Incremental burst of unspecified length */ + tx-burst-size-dword = <0x10>; + rx-burst-size-dword = <0x10>; }; -- 1.9.1