45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
* Renesas R-Mobile/R-Car Timer Unit (TMU)
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The TMU is a 32-bit timer/counter with configurable clock inputs and
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programmable compare match.
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Channels share hardware resources but their counter and compare match value
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are independent. The TMU hardware supports up to three channels.
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Required Properties:
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- compatible: must contain one or more of the following:
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- "renesas,tmu-r8a7740" for the r8a7740 TMU
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- "renesas,tmu-r8a7778" for the r8a7778 TMU
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- "renesas,tmu-r8a7779" for the r8a7779 TMU
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- "renesas,tmu" for any TMU.
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This is a fallback for the above renesas,tmu-* entries
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- reg: base address and length of the registers block for the timer module.
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- interrupts: interrupt-specifier for the timer, one per channel.
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- clocks: a list of phandle + clock-specifier pairs, one for each entry
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in clock-names.
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- clock-names: must contain "fck" for the functional clock.
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Optional Properties:
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- #renesas,channels: number of channels implemented by the timer, must be 2
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or 3 (if not specified the value defaults to 3).
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Example: R8A7779 (R-Car H1) TMU0 node
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tmu0: timer@ffd80000 {
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compatible = "renesas,tmu-r8a7779", "renesas,tmu";
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reg = <0xffd80000 0x30>;
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interrupts = <0 32 IRQ_TYPE_LEVEL_HIGH>,
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<0 33 IRQ_TYPE_LEVEL_HIGH>,
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<0 34 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&mstp0_clks R8A7779_CLK_TMU0>;
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clock-names = "fck";
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#renesas,channels = <3>;
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};
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