[U-Boot] [PATCH 1/3] ARmv7: Add a soc_init hook to start.S

[Albert ARIBAUD]

Hello Simon,

On Thu, 5 Feb 2015 08:34:53 -0700, Simon Glass <sjg at chromium.org> wrote:
> Hi Albert,

> >> reset - no stack, no RAM ( (except SPL can presumably access data section)
> >
> > More precisely: from a hardware viewpoint there would be no DDR, but
> > there could be SRAM, and from a program viewpoint, no stack and no
> > writable data: text, rodata and initialized data sections could be read
> > from, but should never be written to.
> 
> I can see in some rare cases we would want to store data here (as you
> say in the next paragraph) and in that case, initialised data is a
> good option - we cannot use BSS and it is ugly to write to memory
> directly. My sunxi patches store lr and sp, for example.

Not sure I'm getting your "initialized data is a good option", as
initialized data, just like BSS, cannot be written at reset stage.

> > "layout" does not entirely cover what board_init_f() does, though, and
> > I don't like "init" when what it does is actually resetting the board
> > to a known state -- yes, I know we often use "reset" for "restart". How
> > about this?
> >
> >         "start"
> >         "init"
> >         "forerun"
> >         "run"
> >
> > You've got the "f" that you wanted :) and the "run" in the third and
> > last stage are nice reminders that we do have a run-time C environment
> > there, except the third stage is not quite a running environment yet.
> 
> All of the above sounds good to me. Yes forerun has an f. I think it
> is better than the other things I can think of (find, furnish,
> formulate, fabricate, former)

"Anything else we does beginnin' with F, boys?" -- Otis McCoy, head of
the "feudin', fightin', feedin', funnin', flatin' McCoys" gang, /in/
the Judge Dredd (the comics) story "Alabama Blimps".

> Regards,
> Simon

Amicalement,
-- 
Albert.