1* Rockchip General Register Files (GRF)
2
3The general register file will be used to do static set by software, which
4is composed of many registers for system control.
5
6From RK3368 SoCs, the GRF is divided into two sections,
7- GRF, used for general non-secure system,
8- SGRF, used for general secure system,
9- PMUGRF, used for always on system
10
11On RK3328 SoCs, the GRF adds a section for USB2PHYGRF,
12
13Required Properties:
14
15- compatible: GRF should be one of the following:
16   - "rockchip,rk3036-grf", "syscon": for rk3036
17   - "rockchip,rk3066-grf", "syscon": for rk3066
18   - "rockchip,rk3188-grf", "syscon": for rk3188
19   - "rockchip,rk3228-grf", "syscon": for rk3228
20   - "rockchip,rk3288-grf", "syscon": for rk3288
21   - "rockchip,rk3328-grf", "syscon": for rk3328
22   - "rockchip,rk3368-grf", "syscon": for rk3368
23   - "rockchip,rk3399-grf", "syscon": for rk3399
24   - "rockchip,rv1108-grf", "syscon": for rv1108
25- compatible: PMUGRF should be one of the following:
26   - "rockchip,rk3368-pmugrf", "syscon": for rk3368
27   - "rockchip,rk3399-pmugrf", "syscon": for rk3399
28- compatible: SGRF should be one of the following
29   - "rockchip,rk3288-sgrf", "syscon": for rk3288
30- compatible: USB2PHYGRF should be one of the followings
31   - "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328
32- compatible: USBGRF should be one of the following
33   - "rockchip,rv1108-usbgrf", "syscon": for rv1108
34- reg: physical base address of the controller and length of memory mapped
35  region.
36
37Example: GRF and PMUGRF of RK3399 SoCs
38
39	pmugrf: syscon@ff320000 {
40		compatible = "rockchip,rk3399-pmugrf", "syscon";
41		reg = <0x0 0xff320000 0x0 0x1000>;
42	};
43
44	grf: syscon@ff770000 {
45		compatible = "rockchip,rk3399-grf", "syscon";
46		reg = <0x0 0xff770000 0x0 0x10000>;
47	};
48