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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mtdparts: Call nand_init() during mtdparts_init().
Date: Fri, 15 Oct 2010 23:39:52 +0200	[thread overview]
Message-ID: <20101015213952.CBA531365CF@gemini.denx.de> (raw)
In-Reply-To: <201010151608.30637.vapier@gentoo.org>

Dear Mike Frysinger,

In message <201010151608.30637.vapier@gentoo.org> you wrote:
>
> > > @@ -1711,6 +1707,7 @@ int mtdparts_init(void)
> > >  		memset(last_ids, 0, MTDIDS_MAXLEN);
> > >  		memset(last_parts, 0, MTDPARTS_MAXLEN);
> > >  		memset(last_partition, 0, PARTITION_MAXLEN);
> > > 
> > > +		nand_init();
> > >  		initialized = 1;
> > >  	}
> > 
> > I don't like this either.  I don't want to see a nand_init() for
> > systems that have no NAND at all (not even an empty one).
>
> i disagree ... sprinkling #ifdef's throughout the code makes it a lot harder 
> to read, maintain, and validate across multiple configurations.  you're 
> suggesting we do:
> #ifdef CONFIG_CMD_NAND
> 		nand_init();
> #endif

No, I'm not. I did not suggest anything like that.

> it makes more sense to me to hide this in the header (which Scott has done)>  
> and let the compiler/code optimize dead crap away.

Why do we need an explicit call to nand_init() at all?

Why cannot the NAND routines check internally if they have been
initialized yet, and run nand_init() if and when needed?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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  reply	other threads:[~2010-10-15 21:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-15 18:59 [U-Boot] [PATCH] mtdparts: Call nand_init() during mtdparts_init() Scott Wood
2010-10-15 19:36 ` Wolfgang Denk
2010-10-15 19:47   ` Scott Wood
2010-10-15 20:08   ` Mike Frysinger
2010-10-15 21:39     ` Wolfgang Denk [this message]
2010-10-15 21:48       ` Scott Wood
2010-10-15 22:17         ` Wolfgang Denk
2010-10-15 22:35           ` Scott Wood
2010-10-15 22:48             ` Wolfgang Denk
2010-10-15 23:05               ` Scott Wood

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