ARM: dts: aspeed: amd-ethanolx: Enable KCS channel 3

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@gmail.com>
Reviewed-by: Supreeth Venkatesh <supreeth.venkatesh@amd.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201027123722.2935-2-aladyshev22@gmail.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

diff --git a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
index 89ddc38..2a86bda 100644 (file)
--- 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>;