[coreboot] spkmodem output

[Keith Emery]

I had a bit of a brainwave regarding what might be happening with this 
spkmodem output. I was hoping to collect peoples thoughts in regards to 
weather I might be at least possibly on the right track.

When I enable spkmodem in the coreboot config, I get output from the PC 
speaker. But spkmodem-recv interprets the tones as consistent gibberish. 
The output is consistent with a mismatch in the baud rates, but there 
appears no apparent way to select anything different in the 
spkmodem-recv software. If the CPU is running coreboot as fast as 
possible while receiving those instructions from a relatively slow SPI 
bus. Is it possible that I've somehow overclocked the SPI bus, leading 
to a mismatch in the baud rates?