From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Popov Subject: [PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document Date: Wed, 18 Jun 2014 14:48:10 +0400 Message-ID: <1403088492-15241-2-git-send-email-a13xp0p0v88@gmail.com> References: <1403088492-15241-1-git-send-email-a13xp0p0v88@gmail.com> Return-path: In-Reply-To: <1403088492-15241-1-git-send-email-a13xp0p0v88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Gerhard Sittig , Dan Williams , Vinod Koul , Lars-Peter Clausen , Arnd Bergmann , Anatolij Gustschin , Andy Shevchenko , Alexander Popov , linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Introduce a device tree binding document for the MPC512x DMA controller Signed-off-by: Alexander Popov --- .../devicetree/bindings/dma/mpc512x-dma.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/mpc512x-dma.txt diff --git a/Documentation/devicetree/bindings/dma/mpc512x-dma.txt b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt new file mode 100644 index 0000000..95e2ca0 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt @@ -0,0 +1,31 @@ +* Freescale MPC512x and MPC8308 DMA Controller + +The DMA controller in Freescale MPC512x and MPC8308 SoCs can move +blocks of memory contents between memory and peripherals or +from memory to memory. + +Refer to "Generic DMA Controller and DMA request bindings" in +the dma/dma.txt file for a more detailed description of binding. + +Required properties: +- compatible: should be "fsl,mpc5121-dma" or "fsl,mpc8308-dma"; +- reg: should contain the DMA controller registers location and length; +- interrupt for the DMA controller: syntax of interrupt client node + is described in interrupt-controller/interrupts.txt file. + +Optional properties: +- #dma-cells: the length of the DMA specifier, must be <1>. + Each channel of this DMA controller has a peripheral request line, + the assignment is fixed in hardware. This one cell + in dmas property of a client device represents the channel number. + +Example: + + dma0: dma@14000 { + compatible = "fsl,mpc5121-dma"; + reg = <0x14000 0x1800>; + interrupts = <65 0x8>; + #dma-cells = <1>; + }; + +DMA clients must use the format described in dma/dma.txt file. -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html