ti,pru-rproc.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/remoteproc/ti,pru-rproc.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: TI Programmable Realtime Unit (PRU) cores
    8 
    9 maintainers:
   10   - Suman Anna <s-anna@ti.com>
   11 
   12 description: |
   13   Each Programmable Real-Time Unit and Industrial Communication Subsystem
   14   (PRU-ICSS or PRUSS) has two 32-bit load/store RISC CPU cores called
   15   Programmable Real-Time Units (PRUs), each represented by a node. Each PRU
   16   core has a dedicated Instruction RAM, Control and Debug register sets, and
   17   use the Data RAMs present within the PRU-ICSS for code execution.
   18 
   19   The K3 SoCs containing ICSSG v1.0 (eg: AM65x SR1.0) also have two Auxiliary
   20   PRU cores called RTUs with slightly different IP integration. The K3 SoCs
   21   containing the revised ICSSG v1.1 (eg: J721E, AM65x SR2.0) have an extra two
   22   auxiliary Transmit PRU cores called Tx_PRUs that augment the PRUs. Each RTU
   23   or Tx_PRU core can also be used independently like a PRU, or alongside a
   24   corresponding PRU core to provide/implement auxiliary functionality/support.
   25 
   26   Each PRU, RTU or Tx_PRU core node should be defined as a child node of the
   27   corresponding PRU-ICSS node. Each node can optionally be rendered inactive by
   28   using the standard DT string property, "status".
   29 
   30   Please see the overall PRU-ICSS bindings document for additional details
   31   including a complete example,
   32     Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
   33 
   34 properties:
   35   compatible:
   36     enum:
   37       - ti,am3356-pru   # for AM335x SoC family (AM3356+ SoCs only)
   38       - ti,am4376-pru   # for AM437x SoC family (AM4376+ SoCs only)
   39       - ti,am5728-pru   # for AM57xx SoC family
   40       - ti,am625-pru    # for PRUs in K3 AM62x SoC family
   41       - ti,am642-pru    # for PRUs in K3 AM64x SoC family
   42       - ti,am642-rtu    # for RTUs in K3 AM64x SoC family
   43       - ti,am642-tx-pru # for Tx_PRUs in K3 AM64x SoC family
   44       - ti,am654-pru    # for PRUs in K3 AM65x SoC family
   45       - ti,am654-rtu    # for RTUs in K3 AM65x SoC family
   46       - ti,am654-tx-pru # for Tx_PRUs in K3 AM65x SR2.0 SoCs
   47       - ti,j721e-pru    # for PRUs in K3 J721E SoC family
   48       - ti,j721e-rtu    # for RTUs in K3 J721E SoC family
   49       - ti,j721e-tx-pru # for Tx_PRUs in K3 J721E SoC family
   50       - ti,k2g-pru      # for 66AK2G SoC family
   51 
   52   reg:
   53     items:
   54       - description: Address and Size of the PRU Instruction RAM
   55       - description: Address and Size of the PRU CTRL sub-module registers
   56       - description: Address and Size of the PRU Debug sub-module registers
   57 
   58   reg-names:
   59     items:
   60       - const: iram
   61       - const: control
   62       - const: debug
   63 
   64   firmware-name:
   65     description: |
   66       Should contain the name of the default firmware image
   67       file located on the firmware search path.
   68 
   69 if:
   70   properties:
   71     compatible:
   72       enum:
   73         - ti,am654-rtu
   74         - ti,j721e-rtu
   75         - ti,am642-rtu
   76 then:
   77   properties:
   78     $nodename:
   79       pattern: "^rtu@[0-9a-f]+$"
   80 else:
   81   if:
   82     properties:
   83       compatible:
   84         enum:
   85           - ti,am654-tx-pru
   86           - ti,j721e-tx-pru
   87           - ti,am642-tx-pru
   88   then:
   89     properties:
   90       $nodename:
   91         pattern: "^txpru@[0-9a-f]+"
   92   else:
   93     properties:
   94       $nodename:
   95         pattern: "^pru@[0-9a-f]+$"
   96 
   97 required:
   98   - compatible
   99   - reg
  100   - reg-names
  101   - firmware-name
  102 
  103 additionalProperties: false
  104 
  105 examples:
  106   - |
  107     /* AM33xx PRU-ICSS */
  108     pruss_tm: target-module@300000 {  /* 0x4a300000, ap 9 04.0 */
  109       compatible = "ti,sysc-pruss", "ti,sysc";
  110       #address-cells = <1>;
  111       #size-cells = <1>;
  112       ranges = <0x0 0x300000 0x80000>;
  113 
  114       pruss: pruss@0 {
  115         compatible = "ti,am3356-pruss";
  116         reg = <0x0 0x80000>;
  117         #address-cells = <1>;
  118         #size-cells = <1>;
  119         ranges;
  120 
  121         pruss_mem: memories@0 {
  122           reg = <0x0 0x2000>,
  123                 <0x2000 0x2000>,
  124                 <0x10000 0x3000>;
  125           reg-names = "dram0", "dram1", "shrdram2";
  126         };
  127 
  128         pru0: pru@34000 {
  129           compatible = "ti,am3356-pru";
  130           reg = <0x34000 0x2000>,
  131                 <0x22000 0x400>,
  132                 <0x22400 0x100>;
  133           reg-names = "iram", "control", "debug";
  134           firmware-name = "am335x-pru0-fw";
  135         };
  136 
  137         pru1: pru@38000 {
  138           compatible = "ti,am3356-pru";
  139           reg = <0x38000 0x2000>,
  140                 <0x24000 0x400>,
  141                 <0x24400 0x100>;
  142           reg-names = "iram", "control", "debug";
  143           firmware-name = "am335x-pru1-fw";
  144         };
  145       };
  146     };
  147 
  148   - |
  149     /* AM65x SR2.0 ICSSG */
  150     #include <dt-bindings/soc/ti,sci_pm_domain.h>
  151 
  152     icssg0: icssg@b000000 {
  153       compatible = "ti,am654-icssg";
  154       reg = <0xb000000 0x80000>;
  155       power-domains = <&k3_pds 62 TI_SCI_PD_EXCLUSIVE>;
  156       #address-cells = <1>;
  157       #size-cells = <1>;
  158       ranges = <0x0 0xb000000 0x80000>;
  159 
  160       icssg0_mem: memories@0 {
  161         reg = <0x0 0x2000>,
  162               <0x2000 0x2000>,
  163               <0x10000 0x10000>;
  164         reg-names = "dram0", "dram1", "shrdram2";
  165       };
  166 
  167       pru0_0: pru@34000 {
  168         compatible = "ti,am654-pru";
  169         reg = <0x34000 0x4000>,
  170               <0x22000 0x100>,
  171               <0x22400 0x100>;
  172         reg-names = "iram", "control", "debug";
  173         firmware-name = "am65x-pru0_0-fw";
  174       };
  175 
  176       rtu0_0: rtu@4000 {
  177         compatible = "ti,am654-rtu";
  178         reg = <0x4000 0x2000>,
  179               <0x23000 0x100>,
  180               <0x23400 0x100>;
  181         reg-names = "iram", "control", "debug";
  182         firmware-name = "am65x-rtu0_0-fw";
  183       };
  184 
  185       tx_pru0_0: txpru@a000 {
  186         compatible = "ti,am654-tx-pru";
  187         reg = <0xa000 0x1800>,
  188               <0x25000 0x100>,
  189               <0x25400 0x100>;
  190         reg-names = "iram", "control", "debug";
  191         firmware-name = "am65x-txpru0_0-fw";
  192       };
  193 
  194       pru0_1: pru@38000 {
  195         compatible = "ti,am654-pru";
  196         reg = <0x38000 0x4000>,
  197               <0x24000 0x100>,
  198               <0x24400 0x100>;
  199         reg-names = "iram", "control", "debug";
  200         firmware-name = "am65x-pru0_1-fw";
  201       };
  202 
  203       rtu0_1: rtu@6000 {
  204         compatible = "ti,am654-rtu";
  205         reg = <0x6000 0x2000>,
  206               <0x23800 0x100>,
  207               <0x23c00 0x100>;
  208         reg-names = "iram", "control", "debug";
  209         firmware-name = "am65x-rtu0_1-fw";
  210       };
  211 
  212       tx_pru0_1: txpru@c000 {
  213         compatible = "ti,am654-tx-pru";
  214         reg = <0xc000 0x1800>,
  215               <0x25800 0x100>,
  216               <0x25c00 0x100>;
  217         reg-names = "iram", "control", "debug";
  218         firmware-name = "am65x-txpru0_1-fw";
  219       };
  220     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/remoteproc/ti,pru-rproc.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/remoteproc/ti,pru-rproc.yaml