renesas,tmu.txt

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    1 * Renesas R-Mobile/R-Car Timer Unit (TMU)
    2 
    3 The TMU is a 32-bit timer/counter with configurable clock inputs and
    4 programmable compare match.
    5 
    6 Channels share hardware resources but their counter and compare match value
    7 are independent. The TMU hardware supports up to three channels.
    8 
    9 Required Properties:
   10 
   11   - compatible: must contain one or more of the following:
   12     - "renesas,tmu-r8a7740" for the r8a7740 TMU
   13     - "renesas,tmu-r8a774a1" for the r8a774A1 TMU
   14     - "renesas,tmu-r8a774b1" for the r8a774B1 TMU
   15     - "renesas,tmu-r8a774c0" for the r8a774C0 TMU
   16     - "renesas,tmu-r8a7778" for the r8a7778 TMU
   17     - "renesas,tmu-r8a7779" for the r8a7779 TMU
   18     - "renesas,tmu-r8a77970" for the r8a77970 TMU
   19     - "renesas,tmu-r8a77980" for the r8a77980 TMU
   20     - "renesas,tmu" for any TMU.
   21       This is a fallback for the above renesas,tmu-* entries
   22 
   23   - reg: base address and length of the registers block for the timer module.
   24 
   25   - interrupts: interrupt-specifier for the timer, one per channel.
   26 
   27   - clocks: a list of phandle + clock-specifier pairs, one for each entry
   28     in clock-names.
   29   - clock-names: must contain "fck" for the functional clock.
   30 
   31 Optional Properties:
   32 
   33   - #renesas,channels: number of channels implemented by the timer, must be 2
   34     or 3 (if not specified the value defaults to 3).
   35 
   36 
   37 Example: R8A7779 (R-Car H1) TMU0 node
   38 
   39         tmu0: timer@ffd80000 {
   40                 compatible = "renesas,tmu-r8a7779", "renesas,tmu";
   41                 reg = <0xffd80000 0x30>;
   42                 interrupts = <0 32 IRQ_TYPE_LEVEL_HIGH>,
   43                              <0 33 IRQ_TYPE_LEVEL_HIGH>,
   44                              <0 34 IRQ_TYPE_LEVEL_HIGH>;
   45                 clocks = <&mstp0_clks R8A7779_CLK_TMU0>;
   46                 clock-names = "fck";
   47 
   48                 #renesas,channels = <3>;
   49         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/timer/renesas,tmu.txt

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sys/contrib/device-tree/Bindings/timer/renesas,tmu.txt