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From: Detlef Vollmann <dv@vollmann.ch>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] difference between _f and _r init functions
Date: Mon, 15 Oct 2007 04:14:18 +0200	[thread overview]
Message-ID: <4712CCFA.8040606@vollmann.ch> (raw)
In-Reply-To: <200710142045.00187.vapier@gentoo.org>

Mike Frysinger wrote:
> cant seem to find any explicit mention of the difference between _f and _r 
> functions ... looks like _f funcs are called "early" and _r funcs are the 
> later stuff which do more.  what's the letter stand for and generally what 
> should these be doing ?
In my current case (old U-Boot, ppc 8xx) _f runs from _f_lash, not
yet relocated, setup of and access through function pointers needs
special care, very few RAM (and stack size) available.
_r runs after relocation from _R_AM, nomal mode, no special care
required.

   Detlef

      reply	other threads:[~2007-10-15  2:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-15  0:44 [U-Boot-Users] difference between _f and _r init functions Mike Frysinger
2007-10-15  2:14 ` Detlef Vollmann [this message]

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