Paul's recent dialogue about PS/2 keyboard in SeaBIOS reminds me that I am also suffering PS/2 keyboard issues on three mainboards that I am having with coreboot/SeaBIOS combo and need to ask here.
The boards are P2B-LS, P3B-F and P8Z77-M all from Asus. The last one I'm doing a new port that is currently under review at coreboot.
On those boards I almost never got PS/2 keyboard to work before my Linux kernel (4.4.14, soon 5.4.x) finishes booting and I get login prompt. Only on P3B-F it would work intermittently earlier. USB keyboards always worked right away. The PS/2 Keyboards I'm using are two pieces of classic: IBM Model M and the first Microsoft Natural.
I am using SeaBIOS 1.13.0 which already carries commit dbf9dd27f which described and should have fixed the issue I'm having. I also tried tweaking with the PS/2 keyboard "spinup" timeout from 0 to 500 to 2500 to 3500ms with no noticeable difference. Now I'm stumped.
Thanks Keith