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Commit 54f90b8f authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "ARM: dts: Document the CCI PMU DT bindings"

parents cffaca17 9e853b12
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+47 −1
Original line number Diff line number Diff line
@@ -85,6 +85,42 @@ specific to ARM.
				    corresponding interface programming
				    registers.

	- CCI PMU node

		Parent node must be CCI interconnect node.

		A CCI pmu node must contain the following properties:

		- compatible
			Usage: required
			Value type: <string>
			Definition: must be "arm,cci-400-pmu"

		- reg:
			Usage: required
			Value type: Integer cells. A register entry, expressed
				    as a pair of cells, containing base and
				    size.
			Definition: the base address and size of the
				    corresponding interface programming
				    registers.

		- interrupts:
			Usage: required
			Value type: Integer cells. Array of interrupt specifier
				    entries, as defined in
				    ../interrupt-controller/interrupts.txt.
			Definition: list of counter overflow interrupts, one per
				    counter. The interrupts must be specified
				    starting with the cycle counter overflow
				    interrupt, followed by counter0 overflow
				    interrupt, counter1 overflow interrupt,...
				    ,counterN overflow interrupt.

				    The CCI PMU has an interrupt signal for each
				    counter. The number of interrupts must be
				    equal to the number of counters.

* CCI interconnect bus masters

	Description: masters in the device tree connected to a CCI port
@@ -150,7 +186,7 @@ Example:
		#address-cells = <1>;
		#size-cells = <1>;
		reg = <0x0 0x2c090000 0 0x1000>;
		ranges = <0x0 0x0 0x2c090000 0x6000>;
		ranges = <0x0 0x0 0x2c090000 0x10000>;

		cci_control0: slave-if@1000 {
			compatible = "arm,cci-400-ctrl-if";
@@ -169,6 +205,16 @@ Example:
			interface-type = "ace";
			reg = <0x5000 0x1000>;
		};

		pmu@9000 {
			 compatible = "arm,cci-400-pmu";
			 reg = <0x9000 0x5000>;
			 interrupts = <0 101 4>,
				      <0 102 4>,
				      <0 103 4>,
				      <0 104 4>,
				      <0 105 4>;
		};
	};

This CCI node corresponds to a CCI component whose control registers sits