The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/remoteproc/qcom,wcnss-pil.txt

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    1 Qualcomm WCNSS Peripheral Image Loader
    2 
    3 This document defines the binding for a component that loads and boots firmware
    4 on the Qualcomm WCNSS core.
    5 
    6 - compatible:
    7         Usage: required
    8         Value type: <string>
    9         Definition: must be one of:
   10                     "qcom,riva-pil",
   11                     "qcom,pronto-v1-pil",
   12                     "qcom,pronto-v2-pil"
   13 
   14 - reg:
   15         Usage: required
   16         Value type: <prop-encoded-array>
   17         Definition: must specify the base address and size of the CCU, DXE and
   18                     PMU register blocks
   19 
   20 - reg-names:
   21         Usage: required
   22         Value type: <stringlist>
   23         Definition: must be "ccu", "dxe", "pmu"
   24 
   25 - interrupts-extended:
   26         Usage: required
   27         Value type: <prop-encoded-array>
   28         Definition: must list the watchdog and fatal IRQs and may specify the
   29                     ready, handover and stop-ack IRQs
   30 
   31 - interrupt-names:
   32         Usage: required
   33         Value type: <stringlist>
   34         Definition: should be "wdog", "fatal", optionally followed by "ready",
   35                     "handover", "stop-ack"
   36 
   37 - firmware-name:
   38         Usage: optional
   39         Value type: <string>
   40         Definition: must list the relative firmware image path for the
   41                     WCNSS core. Defaults to "wcnss.mdt".
   42 
   43 - vddmx-supply: (deprecated for qcom,pronto-v1/2-pil)
   44 - vddcx-supply: (deprecated for qcom,pronto-v1/2-pil)
   45 - vddpx-supply:
   46         Usage: required
   47         Value type: <phandle>
   48         Definition: reference to the regulators to be held on behalf of the
   49                     booting of the WCNSS core
   50 
   51 - power-domains:
   52         Usage: required (for qcom,pronto-v1/2-pil)
   53         Value type: <phandle>
   54         Definition: reference to the power domains to be held on behalf of the
   55                     booting of the WCNSS core
   56 
   57 - power-domain-names:
   58         Usage: required (for qcom,pronto-v1/2-pil)
   59         Value type: <stringlist>
   60         Definition: must be "cx", "mx"
   61 
   62 - qcom,smem-states:
   63         Usage: optional
   64         Value type: <prop-encoded-array>
   65         Definition: reference to the SMEM state used to indicate to WCNSS that
   66                     it should shut down
   67 
   68 - qcom,smem-state-names:
   69         Usage: optional
   70         Value type: <stringlist>
   71         Definition: should be "stop"
   72 
   73 - memory-region:
   74         Usage: required
   75         Value type: <prop-encoded-array>
   76         Definition: reference to reserved-memory node for the remote processor
   77                     see ../reserved-memory/reserved-memory.txt
   78 
   79 = SUBNODES
   80 A required subnode of the WCNSS PIL is used to describe the attached rf module
   81 and its resource dependencies. It is described by the following properties:
   82 
   83 - compatible:
   84         Usage: required
   85         Value type: <string>
   86         Definition: must be one of:
   87                     "qcom,wcn3620",
   88                     "qcom,wcn3660",
   89                     "qcom,wcn3660b",
   90                     "qcom,wcn3680"
   91 
   92 - clocks:
   93         Usage: required
   94         Value type: <prop-encoded-array>
   95         Definition: should specify the xo clock and optionally the rf clock
   96 
   97 - clock-names:
   98         Usage: required
   99         Value type: <stringlist>
  100         Definition: should be "xo", optionally followed by "rf"
  101 
  102 - vddxo-supply:
  103 - vddrfa-supply:
  104 - vddpa-supply:
  105 - vdddig-supply:
  106         Usage: required
  107         Value type: <phandle>
  108         Definition: reference to the regulators to be held on behalf of the
  109                     booting of the WCNSS core
  110 
  111 
  112 The wcnss node can also have an subnode named "smd-edge" that describes the SMD
  113 edge, channels and devices related to the WCNSS.
  114 See ../soc/qcom/qcom,smd.yaml for details on how to describe the SMD edge.
  115 
  116 = EXAMPLE
  117 The following example describes the resources needed to boot control the WCNSS,
  118 with attached WCN3680, as it is commonly found on MSM8974 boards.
  119 
  120 pronto@fb204000 {
  121         compatible = "qcom,pronto-v2-pil";
  122         reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>;
  123         reg-names = "ccu", "dxe", "pmu";
  124 
  125         interrupts-extended = <&intc 0 149 1>,
  126                               <&wcnss_smp2p_slave 0 0>,
  127                               <&wcnss_smp2p_slave 1 0>,
  128                               <&wcnss_smp2p_slave 2 0>,
  129                               <&wcnss_smp2p_slave 3 0>;
  130         interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
  131 
  132         power-domains = <&rpmpd MSM8974_VDDCX>, <&rpmpd MSM8974_VDDMX>;
  133         power-domain-names = "cx", "mx";
  134 
  135         vddpx-supply = <&pm8941_s3>;
  136 
  137         qcom,smem-states = <&wcnss_smp2p_out 0>;
  138         qcom,smem-state-names = "stop";
  139 
  140         memory-region = <&wcnss_region>;
  141 
  142         pinctrl-names = "default";
  143         pinctrl-0 = <&wcnss_pin_a>;
  144 
  145         iris {
  146                 compatible = "qcom,wcn3680";
  147 
  148                 clocks = <&rpmcc RPM_CXO_CLK_SRC>, <&rpmcc RPM_CXO_A2>;
  149                 clock-names = "xo", "rf";
  150 
  151                 vddxo-supply = <&pm8941_l6>;
  152                 vddrfa-supply = <&pm8941_l11>;
  153                 vddpa-supply = <&pm8941_l19>;
  154                 vdddig-supply = <&pm8941_s3>;
  155         };
  156 
  157         smd-edge {
  158                 interrupts = <0 142 1>;
  159 
  160                 qcom,ipc = <&apcs 8 17>;
  161                 qcom,smd-edge = <6>;
  162                 qcom,remote-pid = <4>;
  163 
  164                 label = "pronto";
  165 
  166                 wcnss {
  167                         compatible = "qcom,wcnss";
  168                         qcom,smd-channels = "WCNSS_CTRL";
  169 
  170                         qcom,mmio = <&pronto>;
  171 
  172                         bt {
  173                                 compatible = "qcom,wcnss-bt";
  174                         };
  175                 };
  176         };
  177 };

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