1Generic SYSCON mapped register reset driver
2
3This is a generic reset driver using syscon to map the reset register.
4The reset is generally performed with a write to the reset register
5defined by the register map pointed by syscon reference plus the offset and
6shifted by the reset specifier/
7
8To assert a reset on some device, the equivalent of the following operation is
9performed, where reset_id is the reset specifier from the device's resets
10property.
11
12	if (BIT(reset_id) & mask)
13		regmap[offset][reset_id] = assert-high;
14
15Required properties:
16- compatible: should contain "syscon-reset"
17- #reset-cells: must be 1
18- regmap: this is phandle to the register map node
19- offset: offset in the register map for the reboot register (in bytes)
20
21Optional properties:
22- mask: accept only the reset specifiers defined by the mask (32 bit)
23- assert-high: Bit to write when asserting a reset. Defaults to 1.
24
25Default will be little endian mode, 32 bit access only.
26
27Example:
28
29	reset-controller {
30		compatible = "syscon-reset";
31		#reset-cells = <1>;
32		regmap = <&sysctl>;
33		offset = <0x20>;
34		mask = <0x27FFFFFF>;
35		assert-high = <0>;
36	};
37