3 Jul
2007
3 Jul
'07
8:09 p.m.
-----Original Message----- From: Grant Likely
Do we really need console output before U-Boot has
initialised SDRAM?
For debugging some simple PUTC() and PUTHEX() macros would be sufficient. Of course they have to be disabled on systems
designed to
have a quiet console.
I think it is a good idea to at least default to spitting out *something* on boot. Just in case RAM is hooped.
Console output before RAM is initialized is EXTREMELY important. I thin on our boards, 90% of the output on boot is before RAM is initalized. And when you try to bring up a new board, you definetly need it.