Documentation/devicetree/bindings/nvmem/xlnx,zynqmp-nvmem.txt

   1 --------------------------------------------------------------------------
   2 =  Zynq UltraScale+ MPSoC nvmem firmware driver binding =
   3 --------------------------------------------------------------------------
   4 The nvmem_firmware node provides access to the hardware related data
   5 like soc revision, IDCODE... etc, By using the firmware interface.
   6
   7 Required properties:
   8 - compatible: should be "xlnx,zynqmp-nvmem-fw"
   9
  10 = Data cells =
  11 Are child nodes of silicon id, bindings of which as described in
  12 bindings/nvmem/nvmem.txt
  13
  14 -------
  15  Example
  16 -------
  17 firmware {
  18         zynqmp_firmware: zynqmp-firmware {
  19                 compatible = "xlnx,zynqmp-firmware";
  20                 method = "smc";
  21
  22                 nvmem_firmware {
  23                         compatible = "xlnx,zynqmp-nvmem-fw";
  24                         #address-cells = <1>;
  25                         #size-cells = <1>;
  26
  27                         /* Data cells */
  28                         soc_revision: soc_revision {
  29                                 reg = <0x0 0x4>;
  30                         };
  31                 };
  32         };
  33 };
  34
  35 = Data consumers =
  36 Are device nodes which consume nvmem data cells.
  37
  38 For example:
  39         pcap {
  40                 ...
  41
  42                 nvmem-cells = <&soc_revision>;
  43                 nvmem-cell-names = "soc_revision";
  44
  45                 ...
  46         };