Re: [HELP] ipmi-kcs didn't work

[Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>]

Hi,

On 11/14/2018 2:38 AM, qianlihu wrote:
> Hi,
> 
> I add ipmi kcs node,but it didn't work
> 
> here is the patch for dts.
> 
>          lpc_bmc: lpc-bmc@0 {
> -               compatible = "aspeed,ast2500-lpc-bmc";
> +               compatible = "aspeed,ast2500-lpc-bmc", "simple-mfd", "syscon";
> +
>                  reg = <0x0 0x80>;
> +               reg-io-width = <4>;
> +
> +               #address-cells = <1>;
> +               #size-cells = <1>;
> +               ranges = <0x0 0x0 0x80>;
> +
> +               kcs3: kcs3@0 {
> +                       compatible = "aspeed,ast2500-kcs-bmc";
> +                       reg = <0x0 0x80>;
> +                       interrupts = <8>;
> +                       kcs_chan = <3>;
> +                       kcs_addr = <0xca2>;

Probably, you should add a clock setting for KCS H/W block into here.

	clocks = <&syscon ASPEED_CLK_GATE_LCLK>;

Cheers,

Jae

> +                       status = "disabled";
> +
> +               };
>          };
> 
> +&kcs3 {
>                           +       status = "okay";
>          +};
> 
> 
> The device node /dev/ipmi-kcs3 is created.
> 
> 
> root@sanjose:/tmp# ./kcsbridged --vv --d /dev/ipmi-kcs3
> Debug logging
> Starting
> Registering dbus methods/signals
> Requesting dbus name: org.openbmc.HostIpmi
> Getting dbus file descriptors
> Opening /dev/ipmi-kcs3
> Creating timer fd
> Entering polling loop
> Processed 1 dbus events
> Processed 1 dbus events
> Processed 1 dbus events
> Processed 1 dbus events
> Processed 1 dbus events
> Processed 1 dbus events
> Processed 1 dbus events
> 
> but there is nothing output.
>