Kernel-4.18.0-80.el8_dw-apb

  • Designware APB timer

Required properties:

  • compatible: One of:
    “snps,dw-apb-timer”
    “snps,dw-apb-timer-sp”
    “snps,dw-apb-timer-osc”
  • reg: physical base address of the controller and length of memory mapped
    region.
  • interrupts: IRQ line for the timer.
  • either clocks+clock-names or clock-frequency properties

Optional properties:

  • clocks : list of clock specifiers, corresponding to entries in
        the clock-names property;
    
  • clock-names : should contain “timer” and “pclk” entries, matching entries
        in the clocks property.
    
  • clock-frequency: The frequency in HZ of the timer.
  • clock-freq: For backwards compatibility with picoxcell

If using the clock specifiers, the pclk clock is optional, as not all
systems may use one.

Example:
timer@ffe00000 {
compatible = “snps,dw-apb-timer”;
interrupts = <0 170 4>;
reg = <0xffe00000 0x1000>;
clocks = <&timer_clk>, <&timer_pclk>;
clock-names = “timer”, “pclk”;
};