xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunNuvoton NPCM Reset controller
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible : "nuvoton,npcm750-reset" for NPCM7XX BMC
5*4882a593Smuzhiyun- reg : specifies physical base address and size of the register.
6*4882a593Smuzhiyun- #reset-cells: must be set to 2
7*4882a593Smuzhiyun
8*4882a593SmuzhiyunOptional property:
9*4882a593Smuzhiyun- nuvoton,sw-reset-number - Contains the software reset number to restart the SoC.
10*4882a593Smuzhiyun  NPCM7xx contain four software reset that represent numbers 1 to 4.
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun  If 'nuvoton,sw-reset-number' is not specified software reset is disabled.
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunExample:
15*4882a593Smuzhiyun	rstc: rstc@f0801000 {
16*4882a593Smuzhiyun		compatible = "nuvoton,npcm750-reset";
17*4882a593Smuzhiyun		reg = <0xf0801000 0x70>;
18*4882a593Smuzhiyun		#reset-cells = <2>;
19*4882a593Smuzhiyun		nuvoton,sw-reset-number = <2>;
20*4882a593Smuzhiyun	};
21*4882a593Smuzhiyun
22*4882a593SmuzhiyunSpecifying reset lines connected to IP NPCM7XX modules
23*4882a593Smuzhiyun======================================================
24*4882a593Smuzhiyunexample:
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun        spi0: spi@..... {
27*4882a593Smuzhiyun                ...
28*4882a593Smuzhiyun                resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>;
29*4882a593Smuzhiyun                ...
30*4882a593Smuzhiyun        };
31*4882a593Smuzhiyun
32*4882a593SmuzhiyunThe index could be found in <dt-bindings/reset/nuvoton,npcm7xx-reset.h>.
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