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Commit 959d20bf authored by Wolfgang Grandegger's avatar Wolfgang Grandegger Committed by David S. Miller
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powerpc/mpc5xxx: add OF platform binding doc for FSL MSCAN devices 



This patch adds documentation for the MSCAN OF device bindings for
the MPC512x and moves the one for the MPC5200 to the new common file
"Documentation/powerpc/dts-bindings/fsl/can.txt".

Signed-off-by: default avatarWolfgang Grandegger <wg@denx.de>
Reviewed-by: default avatarWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bf3af547

Documentation/powerpc/dts-bindings/fsl/can.txt

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CAN Device Tree Bindings

------------------------



(c) 2006-2009 Secret Lab Technologies Ltd

Grant Likely <grant.likely@secretlab.ca>



fsl,mpc5200-mscan nodes

-----------------------

In addition to the required compatible-, reg- and interrupt-properties, you can

also specify which clock source shall be used for the controller:



- fsl,mscan-clock-source : a string describing the clock source. Valid values

			   are:	"ip" for ip bus clock

				 "ref" for reference clock (XTAL)

			   "ref" is default in case this property is not

			   present.



fsl,mpc5121-mscan nodes

-----------------------

In addition to the required compatible-, reg- and interrupt-properties, you can

also specify which clock source and divider shall be used for the controller:



- fsl,mscan-clock-source : a string describing the clock source. Valid values

			   are:	"ip" for ip bus clock

				"ref" for reference clock

				"sys" for system clock

			   If this property is not present, an optimal CAN

			   clock source and frequency based on the system

			   clock will be selected. If this is not possible,

			   the reference clock will be used.



- fsl,mscan-clock-divider: for the reference and system clock, an additional

			   clock divider can be specified. By default, a

			   value of 1 is used.



Note that the MPC5121 Rev. 1 processor is not supported.



Examples:

	can@1300 {

		compatible = "fsl,mpc5121-mscan";

		interrupts = <12 0x8>;

		interrupt-parent = <&ipic>;

		reg = <0x1300 0x80>;

	};



	can@1380 {

		compatible = "fsl,mpc5121-mscan";

		interrupts = <13 0x8>;

		interrupt-parent = <&ipic>;

		reg = <0x1380 0x80>;

		fsl,mscan-clock-source = "ref";

		fsl,mscan-clock-divider = <3>;

	};

Documentation/powerpc/dts-bindings/fsl/mpc5200.txt

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Original line number Diff line number Diff line
@@ -195,11 +195,4 @@ External interrupts: 


fsl,mpc5200-mscan nodes

-----------------------

In addition to the required compatible-, reg- and interrupt-properites, you can

also specify which clock source shall be used for the controller:



- fsl,mscan-clock-source- a string describing the clock source. Valid values

			  are:	"ip" for ip bus clock

				"ref" for reference clock (XTAL)

			  "ref" is default in case this property is not

			  present.
 
See file can.txt in this directory.