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Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/arm/vexpress-scc.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/vexpress-scc.txt b/Documentation/devicetree/bindings/arm/vexpress-scc.txt new file mode 100644 index 000000000000..f25849daef80 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/vexpress-scc.txt @@ -0,0 +1,37 @@ +* ARM Versatile Express Serial Configuration Controller device tree bindings + +Latest ARM development boards implement a serial configuration interface (SCC) +that can be used to retrieve temperature sensors, energy/voltage/current +probes and oscillators values through the SYS configuration protocol defined +for versatile express motherboards. +It also provides a power management interface (serial power controller - SPC) +that is capable of managing power/voltage and operating points transitions, +wake-up IRQs and resume addresses for ARM multiprocessor testchips. + +The SCC DT bindings are defined as follows: + +- scc node + + - compatible: + Usage: required + Value type: <stringlist> + Definition: must be + "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc" + - reg: + Usage: required + Value type: <prop-encode-array> + Definition: A standard property that specifies the base address + and the size of the SCC address space + - interrupts: + Usage: required + Value type: <prop-encoded-array> + Definition: SCC interrupt configuration. A standard property + that follows ePAPR interrupts specifications + +Example: + +scc: scc@7fff0000 { + compatible = "arm,vexpress-scc,v2p-ca15_a7", "arm,vexpress-scc"; + reg = <0x7fff0000 0x1000>; + interrupts = <0 95 4>; +}; |