Kernel-4.18.0-80.el8_renesas,r8a7740-cpg-clocks

These bindings should be considered EXPERIMENTAL for now.

  • Renesas R8A7740 Clock Pulse Generator (CPG)

The CPG generates core clocks for the R8A7740 SoC. It includes three PLLs
and several fixed ratio and variable ratio dividers.

Required Properties:

  • compatible: Must be “renesas,r8a7740-cpg-clocks”

  • reg: Base address and length of the memory resource used by the CPG

  • clocks: Reference to the three parent clocks

  • #clock-cells: Must be 1

  • clock-output-names: The names of the clocks. Supported clocks are
    “system”, “pllc0”, “pllc1”, “pllc2”, “r”, “usb24s”, “i”, “zg”, “b”,
    “m1”, “hp”, “hpp”, “usbp”, “s”, “zb”, “m3”, and “cp”.

  • renesas,mode: board-specific settings of the MD_CK* bits

Example

cpg_clocks: cpg_clocks@e6150000 {
compatible = “renesas,r8a7740-cpg-clocks”;
reg = <0xe6150000 0x10000>;
clocks = <&extal1_clk>, <&extal2_clk>, <&extalr_clk>;
#clock-cells = <1>;
clock-output-names = “system”, “pllc0”, “pllc1”,
“pllc2”, “r”,
“usb24s”,
“i”, “zg”, “b”, “m1”, “hp”,
“hpp”, “usbp”, “s”, “zb”, “m3”,
“cp”;
};

&cpg_clocks {
renesas,mode = <0x05>;
};