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The KCS (Keyboard Controller Style) interface is used to perform in-band IPMI communication between a server host and its BMC (BaseBoard Management Controllers). This driver exposes the KCS interface on ASpeed SOCs (AST2400 and AST2500) as a character device. Such SOCs are commonly used as BMCs and this driver implements the BMC side of the KCS interface. Signed-off-by: Haiyue Wang <haiyue.wang@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
26 lines
719 B
Plaintext
26 lines
719 B
Plaintext
* Aspeed KCS (Keyboard Controller Style) IPMI interface
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The Aspeed SOCs (AST2400 and AST2500) 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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"aspeed,ast2400-kcs-bmc"
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"aspeed,ast2500-kcs-bmc"
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- interrupts : interrupt generated by the controller
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- kcs_chan : The LPC channel number in the controller
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- kcs_addr : The host CPU IO map address
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Example:
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kcs3: kcs3@0 {
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compatible = "aspeed,ast2500-kcs-bmc";
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reg = <0x0 0x80>;
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interrupts = <8>;
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kcs_chan = <3>;
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kcs_addr = <0xCA2>;
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status = "okay";
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};
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