allwinner,sun50i-h6-operating-points.yaml

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/opp/allwinner,sun50i-h6-operating-points.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Allwinner H6 CPU OPP Device Tree Bindings
    8 
    9 maintainers:
   10   - Chen-Yu Tsai <wens@csie.org>
   11   - Maxime Ripard <mripard@kernel.org>
   12 
   13 description: |
   14   For some SoCs, the CPU frequency subset and voltage value of each
   15   OPP varies based on the silicon variant in use. Allwinner Process
   16   Voltage Scaling Tables defines the voltage and frequency value based
   17   on the speedbin blown in the efuse combination. The
   18   sun50i-cpufreq-nvmem driver reads the efuse value from the SoC to
   19   provide the OPP framework with required information.
   20 
   21 allOf:
   22   - $ref: opp-v2-base.yaml#
   23 
   24 properties:
   25   compatible:
   26     const: allwinner,sun50i-h6-operating-points
   27 
   28   nvmem-cells:
   29     description: |
   30       A phandle pointing to a nvmem-cells node representing the efuse
   31       registers that has information about the speedbin that is used
   32       to select the right frequency/voltage value pair. Please refer
   33       the for nvmem-cells bindings
   34       Documentation/devicetree/bindings/nvmem/nvmem.txt and also
   35       examples below.
   36 
   37   opp-shared: true
   38 
   39 required:
   40   - compatible
   41   - nvmem-cells
   42 
   43 patternProperties:
   44   "opp-[0-9]+":
   45     type: object
   46 
   47     properties:
   48       opp-hz: true
   49       clock-latency-ns: true
   50 
   51     patternProperties:
   52       "opp-microvolt-.*": true
   53 
   54     required:
   55       - opp-hz
   56       - opp-microvolt-speed0
   57       - opp-microvolt-speed1
   58       - opp-microvolt-speed2
   59 
   60     unevaluatedProperties: false
   61 
   62 additionalProperties: false
   63 
   64 examples:
   65   - |
   66     cpu_opp_table: opp-table {
   67         compatible = "allwinner,sun50i-h6-operating-points";
   68         nvmem-cells = <&speedbin_efuse>;
   69         opp-shared;
   70 
   71         opp-480000000 {
   72             clock-latency-ns = <244144>; /* 8 32k periods */
   73             opp-hz = /bits/ 64 <480000000>;
   74 
   75             opp-microvolt-speed0 = <880000>;
   76             opp-microvolt-speed1 = <820000>;
   77             opp-microvolt-speed2 = <800000>;
   78         };
   79 
   80         opp-720000000 {
   81             clock-latency-ns = <244144>; /* 8 32k periods */
   82             opp-hz = /bits/ 64 <720000000>;
   83 
   84             opp-microvolt-speed0 = <880000>;
   85             opp-microvolt-speed1 = <820000>;
   86             opp-microvolt-speed2 = <800000>;
   87         };
   88 
   89         opp-816000000 {
   90             clock-latency-ns = <244144>; /* 8 32k periods */
   91             opp-hz = /bits/ 64 <816000000>;
   92 
   93             opp-microvolt-speed0 = <880000>;
   94             opp-microvolt-speed1 = <820000>;
   95             opp-microvolt-speed2 = <800000>;
   96         };
   97 
   98         opp-888000000 {
   99             clock-latency-ns = <244144>; /* 8 32k periods */
  100             opp-hz = /bits/ 64 <888000000>;
  101 
  102             opp-microvolt-speed0 = <940000>;
  103             opp-microvolt-speed1 = <820000>;
  104             opp-microvolt-speed2 = <800000>;
  105         };
  106 
  107         opp-1080000000 {
  108             clock-latency-ns = <244144>; /* 8 32k periods */
  109             opp-hz = /bits/ 64 <1080000000>;
  110 
  111             opp-microvolt-speed0 = <1060000>;
  112             opp-microvolt-speed1 = <880000>;
  113             opp-microvolt-speed2 = <840000>;
  114         };
  115 
  116         opp-1320000000 {
  117             clock-latency-ns = <244144>; /* 8 32k periods */
  118             opp-hz = /bits/ 64 <1320000000>;
  119 
  120             opp-microvolt-speed0 = <1160000>;
  121             opp-microvolt-speed1 = <940000>;
  122             opp-microvolt-speed2 = <900000>;
  123         };
  124 
  125         opp-1488000000 {
  126             clock-latency-ns = <244144>; /* 8 32k periods */
  127             opp-hz = /bits/ 64 <1488000000>;
  128 
  129             opp-microvolt-speed0 = <1160000>;
  130             opp-microvolt-speed1 = <1000000>;
  131             opp-microvolt-speed2 = <960000>;
  132         };
  133     };
  134 
  135 ...

Cache object: 27a495943cb9d1a21cc1427347cc2b4a

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml