xref: /freebsd/sys/contrib/device-tree/Bindings/ipmi/npcm7xx-kcs-bmc.txt (revision 7ef62cebc2f965b0f640263e179276928885e33d) 
1* Nuvoton NPCM KCS (Keyboard Controller Style) IPMI interface
2
3The Nuvoton SOCs (NPCM) are commonly used as BMCs
4(Baseboard Management Controllers) and the KCS interface can be
5used to perform in-band IPMI communication with their host.
6
7Required properties:
8- compatible : should be one of
9    "nuvoton,npcm750-kcs-bmc"
10    "nuvoton,npcm845-kcs-bmc", "nuvoton,npcm750-kcs-bmc"
11- interrupts : interrupt generated by the controller
12- kcs_chan : The KCS channel number in the controller
13
14Example:
15
16    lpc_kcs: lpc_kcs@f0007000 {
17        compatible = "nuvoton,npcm750-lpc-kcs", "simple-mfd", "syscon";
18        reg = <0xf0007000 0x40>;
19        reg-io-width = <1>;
20
21        #address-cells = <1>;
22        #size-cells = <1>;
23        ranges = <0x0 0xf0007000 0x40>;
24
25        kcs1: kcs1@0 {
26            compatible = "nuvoton,npcm750-kcs-bmc";
27            reg = <0x0 0x40>;
28            interrupts = <0 9 4>;
29            kcs_chan = <1>;
30            status = "disabled";
31        };
32
33        kcs2: kcs2@0 {
34            compatible = "nuvoton,npcm750-kcs-bmc";
35            reg = <0x0 0x40>;
36            interrupts = <0 9 4>;
37            kcs_chan = <2>;
38            status = "disabled";
39        };
40    };
41