On Mar 19, 2012, at 8:02 PM, Poonam Aggrwal wrote: > This TDM controller is available in various Freescale SOCs like MPC8315, > P1020, > P1022, P1010. > > Signed-off-by: Sandeep Singh <sand...@freescale.com> > Signed-off-by: Poonam Aggrwal <poonam.aggr...@freescale.com> > --- > Changes in v2: > - Incorporated Scott's Review comments > Documentation/devicetree/bindings/tdm/fsl-tdm.txt | 67 +++++++++++++++++++++ > 1 files changed, 67 insertions(+), 0 deletions(-) > create mode 100644 Documentation/devicetree/bindings/tdm/fsl-tdm.txt > > diff --git a/Documentation/devicetree/bindings/tdm/fsl-tdm.txt > b/Documentation/devicetree/bindings/tdm/fsl-tdm.txt > new file mode 100644 > index 0000000..6553dbe > --- /dev/null > +++ b/Documentation/devicetree/bindings/tdm/fsl-tdm.txt > @@ -0,0 +1,67 @@ > +===================================================================== > +TDM Device Tree Binding > +Copyright (C) 2012 Freescale Semiconductor Inc. > + > +NOTE: The bindings described in this document are preliminary > +and subject to change. > + > +===================================================================== > +TDM (Time Division Multiplexing) > + > +DESCRIPTION > + > +The TDM is full duplex serial port designed to allow various devices > including > +digital signal processors (DSPs) to communicate with a variety of serial > devices > +including industry standard framers, codecs, other DSPs and microprocessors. > + > +The below properties describe the device tree bindings for Freescale TDM > +controller. > +This TDM controller is available on various Freescale Processors like > +MPC8315, P1020, P1022 and P1010. > + > +PROPERTIES > + > + - compatible > + Usage: required > + Value type: <string> > + Definition: Should contain "fsl,mpc8315-tdm". > + So mpc8315 will have compatible = "fsl,mpc8315-tdm"; > + p1010 will have compatible "fsl,p1010-tdm", "fsl,mpc8315-tdm"; > + > + - reg > + Usage: required > + Definition: There are two reg resources. First is for TDM registers > and > + the second for TDM DMAC registers. > + > + - clock-frequency > + Usage: optional > + Value type: <u32> > + Definition: The frequency at which the TDM block is operating. > + > + - interrupts > + Usage: required > + Definition: This field defines the interrupt specifiers for the two > + interrupts. First is for TDM error and second for TDM DMAC. > + > + - phy-handle > + Usage: optional > + Value type: <phandle> > + Definition: Phandle of the line controller node or framer node eg. > SLIC, > + E1/T1 etc.
Which way are we going with the name of such handle properties? Ie should this be 'tdm-phy-handle' or keeping it generic is ok? > + > + - fsl,max-time-slots > + Usage: required > + Value type: <u32> > + Definition: Maximum number of 8-bit time slots in one TDM frame. > + This is the maximum number which TDM hardware supports. > + > +EXAMPLE > + > + tdm@16000 { > + compatible = "fsl,p1010-tdm", "fsl,mpc8315-tdm"; > + reg = <0x16000 0x200 0x2c000 0x2000>; > + clock-frequency = <399999999>; /* typically filled by u-boot */ > + interrupts = <16 8 62 8>; > + phy-handle = <&zarlink1>; > + fsl-max-time-slots = <128>; > + }; > -- > 1.6.5.6 > > > _______________________________________________ > Linuxppc-dev mailing list > linuxppc-...@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss