al,alpine-smp

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    1 ========================================================
    2 Secondary CPU enable-method "al,alpine-smp" binding
    3 ========================================================
    4 
    5 This document describes the "al,alpine-smp" method for
    6 enabling secondary CPUs. To apply to all CPUs, a single
    7 "al,alpine-smp" enable method should be defined in the
    8 "cpus" node.
    9 
   10 Enable method name:     "al,alpine-smp"
   11 Compatible machines:    "al,alpine"
   12 Compatible CPUs:        "arm,cortex-a15"
   13 Related properties:     (none)
   14 
   15 Note:
   16 This enable method requires valid nodes compatible with
   17 "al,alpine-cpu-resume" and "al,alpine-nb-service".
   18 
   19 
   20 * Alpine CPU resume registers
   21 
   22 The CPU resume register are used to define required resume address after
   23 reset.
   24 
   25 Properties:
   26 - compatible : Should contain "al,alpine-cpu-resume".
   27 - reg : Offset and length of the register set for the device
   28 
   29 
   30 * Alpine System-Fabric Service Registers
   31 
   32 The System-Fabric Service Registers allow various operation on CPU and
   33 system fabric, like powering CPUs off.
   34 
   35 Properties:
   36 - compatible : Should contain "al,alpine-sysfabric-service" and "syscon".
   37 - reg : Offset and length of the register set for the device
   38 
   39 
   40 Example:
   41 
   42 cpus {
   43         #address-cells = <1>;
   44         #size-cells = <0>;
   45         enable-method = "al,alpine-smp";
   46 
   47         cpu@0 {
   48                 compatible = "arm,cortex-a15";
   49                 device_type = "cpu";
   50                 reg = <0>;
   51         };
   52 
   53         cpu@1 {
   54                 compatible = "arm,cortex-a15";
   55                 device_type = "cpu";
   56                 reg = <1>;
   57         };
   58 
   59         cpu@2 {
   60                 compatible = "arm,cortex-a15";
   61                 device_type = "cpu";
   62                 reg = <2>;
   63         };
   64 
   65         cpu@3 {
   66                 compatible = "arm,cortex-a15";
   67                 device_type = "cpu";
   68                 reg = <3>;
   69         };
   70 };
   71 
   72 cpu_resume {
   73         compatible = "al,alpine-cpu-resume";
   74         reg = <0xfbff5ed0 0x30>;
   75 };
   76 
   77 nb_service {
   78         compatible = "al,alpine-sysfabric-service", "syscon";
   79         reg = <0xfb070000 0x10000>;
   80 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/arm/cpu-enable-method/al,alpine-smp

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/arm/cpu-enable-method/al,alpine-smp