Hi Ilya, Please pull following commit from mainline linux and with latest openbmc tree, Everything should work. Please let me know if you need any help here. commit fa4c8ec6feaa3237f5d44cb8c6d0aa0dff6e1bcc Author: Andrew Jeffery Date: Sat Apr 11 11:44:58 2020 +0930 ARM: dts: aspeed: Change KCS nodes to v2 binding Fixes the following warnings for both g5 and g6 SoCs: arch/arm/boot/dts/aspeed-g5.dtsi:376.19-381.8: Warning (unit_address_vs_reg): /ahb/apb/lpc@1e789000/lpc-bmc@0/kcs1@0: node has a unit name, but no reg property Signed-off-by: Andrew Jeffery Signed-off-by: Joel Stanley commit d85fa6c6f337e768f25ba362e5d2ebb7769ac8c1 Author: Vijay Khemka Date: Mon Jan 27 17:18:17 2020 -0800 ARM: dts: aspeed: tiogapass: Add gpio line names Added GPIO line names for all gpio used in tiogapass platform, these line names will be used by libgpiod to control GPIOs Signed-off-by: Vijay Khemka Reviewed-by: Joel Stanley Signed-off-by: Joel Stanley commit 3dcfff96f17a8e8a9a346f0beff10d75e7ca8edb Author: Vijay Khemka Date: Mon Jan 27 17:17:28 2020 -0800 ARM: dts: aspeed: tiogapass: Add IPMB device Adding IPMB devices for facebook tiogapass platform. Signed-off-by: Vijay Khemka Reviewed-by: Joel Stanley Signed-off-by: Joel Stanley Regards -Vijay From: openbmc on behalf of Vijay Khemka Date: Thursday, July 16, 2020 at 10:37 AM To: Ilya Gousev Cc: "openbmc@lists.ozlabs.org" Subject: Re: Tiogapass build Hi Ilya, We don’t have any video card so no listing in device tree. KCS and IPMB should be working fine. We use kcs1 and kcs2 only. Just check if you are using latest kernel and has ipmb driver entry in device tree. Regards -Vijay From: Ilya Gousev Date: Wednesday, July 15, 2020 at 11:26 AM To: Vijay Khemka Cc: "openbmc@lists.ozlabs.org" Subject: Re: Tiogapass build Hi, Vijay! About KVM: When I was build OpenBMC, KVM did not work. There was no vhub and video nodes in devicetree file. Is this done on purpose? Right now I have problem with KCS Bridge, but i fix it with udev rule like this: KERNEL=="ipmi-kcs3", SYMLINK+="ipmi_kcs3" And fixing phosphor-ipmi-kcs_git.bb Right now i have a problem with starting ipmb service. Do you have such problems too? Or is it my fault? Thanks, Ilya ср, 15 июл. 2020 г. в 20:56, Vijay Khemka >: Hi Ilya, Please see my answers inline From: openbmc > on behalf of Ilya Gousev > Date: Wednesday, July 15, 2020 at 5:18 AM To: "openbmc@lists.ozlabs.org" > Subject: Tiogapass build Hi! >I have tried to touch Tiogapass (by Wiwyn). Good. >I have added the devices for KVM. And it works. What are you trying for KVM here? >Now i want to get information about hardware (for example CPU and DIMM imformation, like model, clocks, etc.). How i can get it? Only from IPMI stack (like KCS)? Yes it can be accesses from IPMI stack via ipmi tools, you can run ipmitool from BMC console itself. And there is a file in /etc/appData.json which stores all of these data. Ilya