From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Bresticker Subject: [PATCH v4 1/9] of: Add NVIDIA Tegra XUSB mailbox binding Date: Wed, 17 Sep 2014 12:59:22 -0700 Message-ID: <1410983970-7043-2-git-send-email-abrestic@chromium.org> References: <1410983970-7043-1-git-send-email-abrestic@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1410983970-7043-1-git-send-email-abrestic@chromium.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Stephen Warren , Thierry Reding , linux-tegra@vger.kernel.org Cc: Mark Rutland , devicetree@vger.kernel.org, linux-usb@vger.kernel.org, Russell King , Mathias Nyman , Pawel Moll , Ian Campbell , Andrew Bresticker , Greg Kroah-Hartman , Linus Walleij , Jassi Brar , linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Rob Herring , Alan Stern , linux-arm-kernel@lists.infradead.org, Kumar Gala , Grant Likely , Arnd Bergmann List-Id: devicetree@vger.kernel.org Add device-tree bindings for the Tegra XUSB mailbox which will be used for communication between the Tegra xHCI controller's firmware and the host processor. Signed-off-by: Andrew Bresticker Reviewed-by: Stephen Warren --- No changes from v3. Changes from v2: - Dropped channel specifier. - Added pointer to mailbox documentation. Changes from v1: - Updated to use common mailbox bindings. --- .../bindings/mailbox/nvidia,tegra124-xusb-mbox.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt b/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt new file mode 100644 index 0000000..b35ea6e --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt @@ -0,0 +1,32 @@ +NVIDIA Tegra XUSB mailbox +========================= + +The Tegra XUSB mailbox is used by the Tegra xHCI controller's firmware to +communicate requests to the host and PHY drivers. + +Refer to ./mailbox.txt for generic information about mailbox device-tree +bindings. + +Required properties: +-------------------- + - compatible: Should be "nvidia,tegra124-xusb-mbox". + - reg: Address and length of the XUSB FPCI registers. + - interrupts: XUSB mailbox interrupt. + - #mbox-cells: Should be 0. There is only one physical channel. + +Example: +-------- + xusb_mbox: mailbox@0,70098000 { + compatible = "nvidia,tegra124-xusb-mbox"; + reg = <0x0 0x70098000 0x0 0x1000>; + interrupts = ; + + #mbox-cells = <0>; + }; + + usb@0,70090000 { + ... + mboxes = <&xusb_mbox>; + mbox-names = "xusb"; + ... + }; -- 2.1.0.rc2.206.gedb03e5