[PATCH 2/4] Device Tree bindings for Freescale TDM controller
Sandeep Singh
Sandeep at freescale.com
Thu Mar 7 06:27:46 EST 2013
This controller is available on many Freescale SOCs like MPC8315, P1020, P1010,
P1022 and P1024
Signed-off-by: Sandeep Singh <Sandeep at freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal at freescale.com>
---
Documentation/devicetree/bindings/tdm/fsl-tdm.txt | 65 +++++++++++++++++++++
1 files changed, 65 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..1258b89
--- /dev/null
+++ b/Documentation/devicetree/bindings/tdm/fsl-tdm.txt
@@ -0,0 +1,65 @@
+=====================================================================
+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,tdm1.0".
+
+ - reg
+ Usage: required
+ Definition: A standard property. The first reg specifier describes the
+ TDM registers, and the second describes the TDM DMAC registers.
+
+ - clock-frequency
+ Usage: optional
+ Value type: <u32 or u64>
+ Definition: The frequency at which the TDM block is operating.
+
+ - interrupts
+ Usage: required
+ Definition: Definition: Two interrupt specifiers. The first is TDM
+ error, and the second is TDM EMAC.
+
+ - 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 at 16000 {
+ compatible = "fsl,tdm1.0";
+ reg = <0x16000 0x200 0x2c000 0x2000>;
+ clock-frequency = <0>;
+ interrupts = <16 8 62 8>;
+ phy-handle = <&zarlink1>;
+ fsl,max-time-slots = <128>;
+ };
--
1.7.6.GIT
More information about the linux-arm-kernel
mailing list