FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/devfreq/event/exynos-nocp.txt

     
     * Samsung Exynos NoC (Network on Chip) Probe device
     
     The Samsung Exynos542x SoC has NoC (Network on Chip) Probe for NoC bus.
     NoC provides the primitive values to get the performance data. The packets
     that the Network on Chip (NoC) probes detects are transported over
     the network infrastructure to observer units. You can configure probes to
     capture packets with header or data on the data request response network,
     or as traffic debug or statistic collectors. Exynos542x bus has multiple
    NoC probes to provide bandwidth information about behavior of the SoC
    that you can use while analyzing system performance.
    
    Required properties:
    - compatible: Should be "samsung,exynos5420-nocp"
    - reg: physical base address of each NoC Probe and length of memory mapped region.
    
    Optional properties:
    - clock-names : the name of clock used by the NoC Probe, "nocp"
    - clocks : phandles for clock specified in "clock-names" property
    
    Example : NoC Probe nodes in Device Tree are listed below.
    
            nocp_mem0_0: nocp@10ca1000 {
                    compatible = "samsung,exynos5420-nocp";
                    reg = <0x10CA1000 0x200>;
            };

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