6b2e54f7ba
This driver exposes the Keyboard Controller Style (KCS) interface on Novoton NPCM7xx SoCs as a character device. Such SOCs are commonly used as a BaseBoard Management Controller (BMC) on a server board, and KCS interface is commonly used to perform the in-band IPMI communication between the server and its BMC. Signed-off-by: Avi Fishman <avifishman70@gmail.com> Signed-off-by: Haiyue Wang <haiyue.wang@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
* Nuvoton NPCM7xx KCS (Keyboard Controller Style) IPMI interface
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The Nuvoton SOCs (NPCM7xx) are commonly used as BMCs
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(Baseboard Management Controllers) and the KCS interface can be
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used to perform in-band IPMI communication with their host.
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Required properties:
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- compatible : should be one of
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"nuvoton,npcm750-kcs-bmc"
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- interrupts : interrupt generated by the controller
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- kcs_chan : The KCS channel number in the controller
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Example:
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lpc_kcs: lpc_kcs@f0007000 {
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compatible = "nuvoton,npcm750-lpc-kcs", "simple-mfd", "syscon";
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reg = <0xf0007000 0x40>;
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reg-io-width = <1>;
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x0 0xf0007000 0x40>;
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kcs1: kcs1@0 {
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compatible = "nuvoton,npcm750-kcs-bmc";
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reg = <0x0 0x40>;
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interrupts = <0 9 4>;
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kcs_chan = <1>;
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status = "disabled";
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};
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kcs2: kcs2@0 {
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compatible = "nuvoton,npcm750-kcs-bmc";
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reg = <0x0 0x40>;
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interrupts = <0 9 4>;
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kcs_chan = <2>;
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status = "disabled";
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};
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}; |