In message EGEGIJHKDKJGAJMGIDPNEEDHCKAA.jwalden@digitalatlantic.com you wrote:
Anyone have and estimate as to how many lines of code are in u-boot, or about how many person-years it would take to do it from scratch?
The first part of the question is simple:
If you count all *.S, *.c and *.h files you get: 474537 LOC.
The second part of the question is more difficult. What exactly do you mean? How much manpower went into the PPCBoot / U-Boot projects? How much it would take to do it again, with today's knowledge and experience, but without looking at the code? To get exact the same state, i. e. support for all the 100+ boards?
The project is about 2.5 years old now. I guess (and this is a wild guess) that about 25 man years went into the U-Boot / PPCBoot until now; to redo it from scratch, I guess you'd need 2...5 man-years if you could select at your liking from all the developers who worked on it; if you cannot do this, I think it would take 5...10 man-years.
A wild guess, as I said.
Best regards,
Wolfgang Denk