Commit de03fe28 authored by Alexander Popov's avatar Alexander Popov Committed by Anatolij Gustschin
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powerpc/512x: add a device tree binding for LocalPlus Bus FIFO 



Add a device tree binding for Freescale MPC512x LocalPlus Bus FIFO and
introduce the document describing that binding.

Signed-off-by: default avatarAlexander Popov <alex.popov@linux.com>
Signed-off-by: default avatarAnatolij Gustschin <agust@denx.de>
parent 1a4bb93f

Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt

0 → 100644
+21 −0
Original line number Diff line number Diff line 
Freescale MPC512x LocalPlus Bus FIFO (called SCLPC in the Reference Manual)



Required properties:

- compatible: should be "fsl,mpc512x-lpbfifo";

- reg: should contain the offset and length of SCLPC register set;

- interrupts: should contain the interrupt specifier for SCLPC; syntax of an

    interrupt client node is described in interrupt-controller/interrupts.txt;

- dmas: should contain the DMA specifier for SCLPC as described at

    dma/dma.txt and dma/mpc512x-dma.txt;

- dma-names: should be "rx-tx";



Example:



	sclpc@10100 {

		compatible = "fsl,mpc512x-lpbfifo";

		reg = <0x10100 0x50>;

		interrupts = <7 0x8>;

		dmas = <&dma0 26>;

		dma-names = "rx-tx";

	};

arch/powerpc/boot/dts/mpc5121.dtsi

+9 −2
Original line number Diff line number Diff line
@@ -77,7 +77,6 @@ 
		#address-cells = <2>;

		#size-cells = <1>;

		reg = <0x80000020 0x40>;

		interrupts = <7 0x8>;

		ranges = <0x0 0x0 0xfc000000 0x04000000>;

	};
@@ -329,7 +328,15 @@ 
		/* LocalPlus controller */

		lpc@10000 {

			compatible = "fsl,mpc5121-lpc";

			reg = <0x10000 0x200>;

			reg = <0x10000 0x100>;

		};



		sclpc@10100 {

			compatible = "fsl,mpc512x-lpbfifo";

			reg = <0x10100 0x50>;

			interrupts = <7 0x8>;

			dmas = <&dma0 26>;

			dma-names = "rx-tx";

		};



		pata@10200 {

arch/powerpc/boot/dts/mpc5125twr.dts

+10 −1
Original line number Diff line number Diff line
@@ -246,6 +246,14 @@ 
			status = "disabled";

		};



		sclpc@10100 {

			compatible = "fsl,mpc512x-lpbfifo";

			reg = <0x10100 0x50>;

			interrupts = <7 0x8>;

			dmas = <&dma0 26>;

			dma-names = "rx-tx";

		};



		// 5125 PSCs are not 52xx or 5121 PSC compatible

		// PSC1 uart0 aka ttyPSC0

		serial@11100 {
@@ -279,10 +287,11 @@ 
			clock-names = "ipg";

		};



		dma@14000 {

		dma0: dma@14000 {

			compatible = "fsl,mpc5121-dma"; // BSP name: "mpc512x-dma2"

			reg = <0x14000 0x1800>;

			interrupts = <65 0x8>;

			#dma-cells = <1>;

		};

	};

};