Hello Daniel, You need to properly build Coreboot, integrating BYT-I (as I recall minnow board) FSP, and the info about BYT-I FSP you can find here: https://github.com/IntelFsp/FSP
Zoran _______ On Wed, Mar 21, 2018 at 12:47 PM, Daniel Wagner <w...@monom.org> wrote: > Hi, > > I would like to test my -rt kernels releases on the minnowboard. Though > cyclictest always reports 2 to 4 ms spikes. It looks like that the > original firmware is stealing those cycles. So my plan was to try out > coreboot and see if my theory is correct or not. > > Now, I am struggling with getting anything working. All my attempts to > bake a working binary have been completely fruitless. Not a single char > on the serial port. If I would at least get something on the serial port > I could find my way through the maze. > > I am confident that flashing the device is works correctly via my > raspberry pi [2]. When I flash the original firmware, the device comes > back to live again. > > Unfortunately, the documentation on how to configure and build coreboot > a bit outdated [1]. My google-foo didn't help either. > > Could someone share his/her current config and also post the SHAs of > coreboot? This would rule out that part. I am not sure if my binary > blobs I extracted or downloaded are okay (fd, me, gbe, FSB). > > Thanks, > Daniel > > [1] https://elinux.org/Minnowboard:MinnowMaxCoreboot > [2] > https://3mdeb.com/firmware/flashing-minnowboard-turbot-with-raspberry-pi-zero-w/ > > -- > coreboot mailing list: coreboot@coreboot.org > https://mail.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot