qoriq-thermal.txt

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    1 * Thermal Monitoring Unit (TMU) on Freescale QorIQ SoCs
    2 
    3 Required properties:
    4 - compatible : Must include "fsl,qoriq-tmu" or "fsl,imx8mq-tmu". The
    5         version of the device is determined by the TMU IP Block Revision
    6         Register (IPBRR0) at offset 0x0BF8.
    7         Table of correspondences between IPBRR0 values and example  chips:
    8                 Value           Device
    9                 ----------      -----
   10                 0x01900102      T1040
   11 - reg : Address range of TMU registers.
   12 - interrupts : Contains the interrupt for TMU.
   13 - fsl,tmu-range : The values to be programmed into TTRnCR, as specified by
   14         the SoC reference manual. The first cell is TTR0CR, the second is
   15         TTR1CR, etc.
   16 - fsl,tmu-calibration : A list of cell pairs containing temperature
   17         calibration data, as specified by the SoC reference manual.
   18         The first cell of each pair is the value to be written to TTCFGR,
   19         and the second is the value to be written to TSCFGR.
   20 - #thermal-sensor-cells : Must be 1. The sensor specifier is the monitoring
   21         site ID, and represents the "n" in TRITSRn and TRATSRn.
   22 
   23 Optional property:
   24 - little-endian : If present, the TMU registers are little endian. If absent,
   25         the default is big endian.
   26 - clocks : the clock for clocking the TMU silicon.
   27 
   28 Example:
   29 
   30 tmu@f0000 {
   31         compatible = "fsl,qoriq-tmu";
   32         reg = <0xf0000 0x1000>;
   33         interrupts = <18 2 0 0>;
   34         fsl,tmu-range = <0x000a0000 0x00090026 0x0008004a 0x0001006a>;
   35         fsl,tmu-calibration = <0x00000000 0x00000025
   36                                0x00000001 0x00000028
   37                                0x00000002 0x0000002d
   38                                0x00000003 0x00000031
   39                                0x00000004 0x00000036
   40                                0x00000005 0x0000003a
   41                                0x00000006 0x00000040
   42                                0x00000007 0x00000044
   43                                0x00000008 0x0000004a
   44                                0x00000009 0x0000004f
   45                                0x0000000a 0x00000054
   46 
   47                                0x00010000 0x0000000d
   48                                0x00010001 0x00000013
   49                                0x00010002 0x00000019
   50                                0x00010003 0x0000001f
   51                                0x00010004 0x00000025
   52                                0x00010005 0x0000002d
   53                                0x00010006 0x00000033
   54                                0x00010007 0x00000043
   55                                0x00010008 0x0000004b
   56                                0x00010009 0x00000053
   57 
   58                                0x00020000 0x00000010
   59                                0x00020001 0x00000017
   60                                0x00020002 0x0000001f
   61                                0x00020003 0x00000029
   62                                0x00020004 0x00000031
   63                                0x00020005 0x0000003c
   64                                0x00020006 0x00000042
   65                                0x00020007 0x0000004d
   66                                0x00020008 0x00000056
   67 
   68                                0x00030000 0x00000012
   69                                0x00030001 0x0000001d>;
   70         #thermal-sensor-cells = <1>;
   71 };

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