[U-Boot] [PATCH] ppc: transform init_sequence into a function.

Scott Wood
2010-12-06T22:49:04Z

On Tue, 7 Dec 2010 09:36:40 +1100
Graeme Russ <graeme.russ@gmail.com> wrote:

> On Tue, Dec 7, 2010 at 8:33 AM, Scott Wood <scottwood@freescale.com> wrote:
> > I think it's easier with the function pointers -- if you want to debug
> > a hang in that phase of the boot, just have the loop print the address
> > of each function before it calls it.
>
> I agree, but you can't print the address before you have console output.

It's usually not too hard to hack something together, even if it's too
early for normal console output -- but I'd expect most problems to be
either before the initialization list, or after the console is working.

> I notice that console_init_f() can be up to 13th in the list of initialisation
> functions - How often is that the case? There seems to be a lot of SDRAM
> initialisation prior to getting console output which, to me, seems a little
> strange - surely console output can be achieved earlier (even if it is using
> a hard-coded baud rate)

I don't see "a lot of SDRAM initialization" -- there's
adjust_sdram_tbs_8xx, but that's really just setting up a couple clock
registers (and it's only for 8xx). It's not the real SDRAM init.

-Scott