On Tue, 27 Oct 2020 at 12:41, Konstantin Aladyshev <aladyshev22@xxxxxxxxx> wrote: > > The KCS interface on the LPC channel 3 in the controller > is used for the in-band BMC<->BIOS IPMI communication. > 0xCA2 is a default host CPU LPC IO address for this > interface. > > Signed-off-by: Konstantin Aladyshev <aladyshev22@xxxxxxxxx> I don't have any docs on the platform so I'll wait for a review from Supreeth before applying this one. It's a correct use of the bindings: Reviewed-by: Joel Stanley <joel@xxxxxxxxx> > --- > arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts > index 89ddc3847222..2a86bda8afd8 100644 > --- a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts > +++ b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts > @@ -147,6 +147,11 @@ > aspeed,lpc-io-reg = <0x62>; > }; > > +&kcs3 { > + status = "okay"; > + aspeed,lpc-io-reg = <0xCA2>; > +}; > + > &kcs4 { > status = "okay"; > aspeed,lpc-io-reg = <0x97DE>; > -- > 2.17.1 >