Kernel-4.18.0-80.el8_hisilicon,hi6220-reset

Hisilicon System Reset Controller

Please also refer to reset.txt in this directory for common reset
controller binding usage.

The reset controller registers are part of the system-ctl block on
hi6220 SoC.

Required properties:

  • compatible: should be one of the following:
    • “hisilicon,hi6220-sysctrl”, “syscon” : For peripheral reset controller.
    • “hisilicon,hi6220-mediactrl”, “syscon” : For media reset controller.
  • reg: should be register base and length as documented in the
    datasheet
  • #reset-cells: 1, see below

Example:
sys_ctrl: sys_ctrl@f7030000 {
compatible = “hisilicon,hi6220-sysctrl”, “syscon”;
reg = <0x0 0xf7030000 0x0 0x2000>;
#clock-cells = <1>;
#reset-cells = <1>;
};

Specifying reset lines connected to IP modules

example:

    uart1: serial@..... {
            ...
            resets = <&sys_ctrl PERIPH_RSTEN3_UART1>;
            ...
    };

The index could be found in <dt-bindings/reset/hisi,hi6220-resets.h>.