From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksij Rempel Subject: [PATCH v3 1/3] dt-bindings: arm: fsl: add mu binding doc Date: Mon, 16 Jul 2018 13:42:07 +0200 Message-ID: <20180716114209.25242-2-o.rempel@pengutronix.de> References: <20180716114209.25242-1-o.rempel@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180716114209.25242-1-o.rempel@pengutronix.de> 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: Shawn Guo , Fabio Estevam , Rob Herring , Mark Rutland , "A.s. Dong" Cc: Oleksij Rempel , dl-linux-imx , linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org The Messaging Unit module enables two processors within the SoC to communicate and coordinate by passing messages (e.g. data, status and control) through the MU interface. Signed-off-by: Oleksij Rempel --- .../devicetree/bindings/mailbox/fsl,mu.txt | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/fsl,mu.txt diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt new file mode 100644 index 000000000000..5d48dd75b98d --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt @@ -0,0 +1,32 @@ +NXP i.MX Messaging Unit (MU) +-------------------------------------------------------------------- + +Required properties: +------------------- +- compatible : should be "fsl,-mu", the supported chips include: + imx6sx - i.MX 6SoloX + imx7d - i.MX 7Dual + imx7s - i.MX 7Solo + imx7ulp - i.MX 7ULP + imx8qm - i.MX 8QM + imx8qxp - i.MX 8QXP +- reg : Should contain the registers location and length +- interrupts : Interrupt number. The interrupt specifier format depends + on the interrupt controller parent. +- #mbox-cells: Must be: + 0 - for single channel mode. i.MX8* SCU protocol specific. + 1 - for multichannel (generic) mode. + +Optional properties: +------------------- +- clocks : phandle to the input clock. +- fsl,mu-side-a : Should be set for side A MU. + +Examples: +-------- +lsio_mu0: mailbox@5d1b0000 { + compatible = "fsl,imx8qxp-mu"; + reg = <0x0 0x5d1b0000 0x0 0x10000>; + interrupts = ; + #mbox-cells = <0>; +}; -- 2.18.0