[mirror_ubuntu-bionic-kernel.git] / Documentation / devicetree / bindings / reset / hisilicon,hi6220-reset.txt

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>.
Commit	Line	Data
04d11269 CF	1	Hisilicon System Reset Controller
	2	======================================
	3
	4	Please also refer to reset.txt in this directory for common reset
	5	controller binding usage.
	6
	7	The reset controller registers are part of the system-ctl block on
	8	hi6220 SoC.
	9
	10	Required properties:
50f44e89 XL	11	- compatible: should be one of the following:
	12	- "hisilicon,hi6220-sysctrl", "syscon" : For peripheral reset controller.
	13	- "hisilicon,hi6220-mediactrl", "syscon" : For media reset controller.
04d11269 CF	14	- reg: should be register base and length as documented in the
	15	datasheet
	16	- #reset-cells: 1, see below
	17
	18	Example:
	19	sys_ctrl: sys_ctrl@f7030000 {
	20	compatible = "hisilicon,hi6220-sysctrl", "syscon";
	21	reg = <0x0 0xf7030000 0x0 0x2000>;
	22	#clock-cells = <1>;
	23	#reset-cells = <1>;
	24	};
	25
	26	Specifying reset lines connected to IP modules
	27	==============================================
	28	example:
	29
	30	uart1: serial@..... {
	31	...
	32	resets = <&sys_ctrl PERIPH_RSTEN3_UART1>;
	33	...
	34	};
	35
	36	The index could be found in <dt-bindings/reset/hisi,hi6220-resets.h>.