From: Poonam Aggrwal <poonam.aggr...@freescale.com>
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>
---
Documentation/devicetree/bindings/tdm/fsl-tdm.txt | 71 +++++++++++++++++++++
1 files changed, 71 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
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+=====================================================================
+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
+MPC8313, P1020, P1022 and P1010.
+
+PROPERTIES
+
+ - compatible
+ Usage: required
+ Value type: <string>
+ Definition: Should contain "fsl,mpc8315-tdm".
+ So mpc8313 will have compatible = "fsl,mpc8315-tdm";
+ p1010 will have compatible "fsl,p1010-tdm", "fsl,mpc8315-tdm";
+
+ - reg
+ Usage: required
+ Value type: <tdm-reg-offset tdm-reg-size dmac-reg-offset dmac-reg-size>
+ Definition: A standard property. Specifies the physical address
+ offset and length of the TDM registers and TDM DMAC registers for
+ the device.
+
+ - clock-frequency
+ Usage: optional
+ Value type: <u32>
+ Definition: The frequency at which the TDM block is operating.
+
+ - interrupts
+ Usage: required
+ Value type: <tdm-err-intr tdm-err-intr-type dmac-intr dmac-intr-type>
+ Definition: This field defines two interrupt specifiers namely interrupt
+ number and interrupt type for TDM error and TDM DMAC.
+
+ - phy-handle
+ Usage: optional
+ Value type: <phandle>
+ Definition: Phandle of the line controller node or framer node eg. SLIC,
+ E1\T1 etc.
+
+ - 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 {
+ device_type = "tdm";
+ compatible = "fsl,p1010-tdm", "fsl,mpc8315-tdm";
+ reg = <0x16000 0x200 0x2c000 0x2000>;
+ clock-frequency = <0>;
+ interrupts = <16 8 62 8>;
+ phy-handle = <zarlink1>
+ fsl-max-time-slots = <128>
+ };
--
1.5.6.5
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