From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Chen Subject: [PATCH v3 04/10] Doc: usb: ci-hdrc-usb2: add ahb-burst-config for binding doc Date: Fri, 7 Aug 2015 15:15:41 +0800 Message-ID: <1438931747-25209-5-git-send-email-peter.chen@freescale.com> References: <1438931747-25209-1-git-send-email-peter.chen@freescale.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1438931747-25209-1-git-send-email-peter.chen-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, Peter Chen List-Id: devicetree@vger.kernel.org It is used to change ahb burst configuration for platforms, it is vendor specific. Signed-off-by: Peter Chen --- 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-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html