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author | Haiyue Wang <haiyue.wang@linux.intel.com> | 2018-02-02 10:16:11 +0800 |
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committer | Corey Minyard <cminyard@mvista.com> | 2018-02-26 09:21:28 -0600 |
commit | be2ed207e3745392478e85afa0bb02acdf44c966 (patch) | |
tree | 7627861753af3139d31c1dedcb91e08278ee048d /Documentation | |
parent | 20d60f61c58e8c937f3653819816dd203e6e3cb4 (diff) | |
download | linux-be2ed207e3745392478e85afa0bb02acdf44c966.tar.bz2 |
ipmi: add an Aspeed KCS IPMI BMC driver
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>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt b/Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt new file mode 100644 index 000000000000..d98a9bf45d6c --- /dev/null +++ b/Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt @@ -0,0 +1,25 @@ +* Aspeed KCS (Keyboard Controller Style) IPMI interface + +The Aspeed SOCs (AST2400 and AST2500) are commonly used as BMCs +(Baseboard Management Controllers) and the KCS interface can be +used to perform in-band IPMI communication with their host. + +Required properties: +- compatible : should be one of + "aspeed,ast2400-kcs-bmc" + "aspeed,ast2500-kcs-bmc" +- interrupts : interrupt generated by the controller +- kcs_chan : The LPC channel number in the controller +- kcs_addr : The host CPU IO map address + + +Example: + + kcs3: kcs3@0 { + compatible = "aspeed,ast2500-kcs-bmc"; + reg = <0x0 0x80>; + interrupts = <8>; + kcs_chan = <3>; + kcs_addr = <0xCA2>; + status = "okay"; + }; |