Re: EDK2 on RPi3 was: Re: u-boot debug, was: Re: U-boot on RPI3, sees disk but won't boot it

On Mon, Oct 24, 2022 at 11:50:11AM -0700, Mark Millard wrote:
> 
> bootcode.bin is only likely to help stages before
> u-boot.bin starts. If it makes to to u-boot.bin
> starting, bootcode.bin is then likely irrelevant
> from then on.
> 
> In fact bootcoce.bin is what loads the start*.elf
> that is used. If the start*.elf starts, bootcode.bin
> is likely irrelevant past that point.
> 
I've put the console output at
http://www.zefox.net/~fbsd/rpi2/20221024/boot_console
in case it's of interest. There are a surprising number
of what look like complaints/errors, but it boots anyway.

> 
> > The interest I expressed in EDK2 appears to have been misguided,
> > or at least premature. I was hoping it might be a more tractable
> > replacement for u-boot, but it's equally inscrutable to an amateur.
> 
> 
> Was this based on mina ports before vs. after:
> 
> QUOTE
> author	Mark Millard <[email protected]>	2022-10-21 21:47:14 +0000
> committer	Lorenzo Salvadore <[email protected]>	2022-10-21 22:00:03 +0000
> 

After. Before it failed in the expected way. After, it succeeded, but
built edk2 for macchiatobin that wasn't useful. I couldn't figure out
how to make poudriere attempt to build the needed rpi3 flavor and didn't
find a flavor for rpi2. This was on a Pi4 running -current. 

It's unclear to me if edk2 offers any advantage over u-boot, at least
when u-boot works. I think HPS's changes to usb probably did help, but
won't know for a while yet given the erratic nature of the troubles. 

Thanks for all your help!

bob prohaska