xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun
2*4882a593Smuzhiyun* Rockchip DFI device
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunRequired properties:
5*4882a593Smuzhiyun- compatible: Should be one of the following.
6*4882a593Smuzhiyun  - "rockchip,px30-dfi" - for PX30 SoCs.
7*4882a593Smuzhiyun  - "rockchip,rk1808-dfi" - for RK1808 SoCs.
8*4882a593Smuzhiyun  - "rockchip,rk3128-dfi" - for RK3128 SoCs.
9*4882a593Smuzhiyun  - "rockchip,rk3288-dfi" - for RK3288 SoCs.
10*4882a593Smuzhiyun  - "rockchip,rk3328-dfi" - for RK3328 SoCs.
11*4882a593Smuzhiyun  - "rockchip,rk3368-dfi" - for RK3368 SoCs.
12*4882a593Smuzhiyun  - "rockchip,rk3399-dfi" - for RK3399 SoCs.
13*4882a593Smuzhiyun  - "rockchip,rk3528-dfi" - for RK3528 SoCs.
14*4882a593Smuzhiyun  - "rockchip,rk3562-dfi" - for RK3562 SoCs.
15*4882a593Smuzhiyun  - "rockchip,rk3568-dfi" - for RK3568 SoCs.
16*4882a593Smuzhiyun  - "rockchip,rv1126-dfi" - for RV1126 SoCs.
17*4882a593Smuzhiyun
18*4882a593SmuzhiyunRequired properties for RK3368:
19*4882a593Smuzhiyun- rockchip,grf: phandle to the syscon managing the "general register files"
20*4882a593Smuzhiyun
21*4882a593SmuzhiyunRequired properties for RK3399:
22*4882a593Smuzhiyun- reg: physical base address of each DFI and length of memory mapped region
23*4882a593Smuzhiyun- rockchip,pmu: phandle to the syscon managing the "pmu general register files"
24*4882a593Smuzhiyun- clocks: phandles for clock specified in "clock-names" property
25*4882a593Smuzhiyun- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon";
26*4882a593Smuzhiyun
27*4882a593SmuzhiyunExample:
28*4882a593Smuzhiyun	dfi: dfi@ff630000 {
29*4882a593Smuzhiyun		compatible = "rockchip,rk3399-dfi";
30*4882a593Smuzhiyun		reg = <0x00 0xff630000 0x00 0x4000>;
31*4882a593Smuzhiyun		rockchip,pmu = <&pmugrf>;
32*4882a593Smuzhiyun		clocks = <&cru PCLK_DDR_MON>;
33*4882a593Smuzhiyun		clock-names = "pclk_ddr_mon";
34*4882a593Smuzhiyun	};
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