Kernel-4.18.0-80.el8_prc

OMAP PRCM bindings

Power Reset and Clock Manager lists the device clocks and clockdomains under
a DT hierarchy. Each TI SoC can have multiple PRCM entities listed for it,
each describing one module and the clock hierarchy under it. see [1] for
documentation about the individual clock/clockdomain nodes.

[1] Documentation/devicetree/bindings/clock/ti/*

Required properties:

  • compatible: Must be one of:
      "ti,am3-prcm"
      "ti,am4-prcm"
      "ti,omap2-prcm"
      "ti,omap3-prm"
      "ti,omap3-cm"
      "ti,omap4-cm1"
      "ti,omap4-prm"
      "ti,omap4-cm2"
      "ti,omap4-scrm"
      "ti,omap5-prm"
      "ti,omap5-cm-core-aon"
      "ti,omap5-scrm"
      "ti,omap5-cm-core"
      "ti,dra7-prm"
      "ti,dra7-cm-core-aon"
      "ti,dra7-cm-core"
      "ti,dm814-prcm"
      "ti,dm816-prcm"
    
  • reg: Contains PRCM module register address range
      (base address and length)
    
  • clocks: clocks for this module
  • clockdomains: clockdomains for this module

Example:

cm: cm@48004000 {
compatible = “ti,omap3-cm”;
reg = <0x48004000 0x4000>;

cm_clocks: clocks {
    #address-cells = <1>;
    #size-cells = <0>;
};

cm_clockdomains: clockdomains {
};

}

&cm_clocks {
omap2_32k_fck: omap_32k_fck {
#clock-cells = <0>;
compatible = “fixed-clock”;
clock-frequency = <32768>;
};
};

&cm_clockdomains {
core_l3_clkdm: core_l3_clkdm {
compatible = “ti,clockdomain”;
clocks = <&sdrc_ick>;
};
};