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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] powerpc: add support for the Freescale P1022DS reference board
Date: Thu, 27 May 2010 23:03:26 +0200	[thread overview]
Message-ID: <20100527210326.6459FEAC238@gemini.denx.de> (raw)
In-Reply-To: <4BFED090.1040305@freescale.com>

Dear Scott Wood,

In message <4BFED090.1040305@freescale.com> you wrote:
>
> If you set maxsize beyond what you expect to find, how are you going to 
> constrain it to operating on one bank?

Maybe it helps if you read section "System Initialization" in teh
README; this explains the original design when I implemented this a
decade ago.

> > Such configurations are usually set up of from several differently
> > sized banks of memory, and get_ram_size() is always run per bank. So
> > as long as chip manufacturers continue to make RAM chips with
> > power-of-two sizes only, everything should be fine.
> 
> So it's not the board code at all that should be calling this, it's the 
> SDRAM code?  Which is already in u-boot, and not in this patch (other 
> than some board-specific tweaks)?

I don't know where you initialize the RAM.

> Let's not.  It can be crowded enough as is, we don't need more 
> restrictions coming from u-boot wanting to do questionable and 
> unnecessary things.

Well, what seems unnecessary to you is actually pretty important to
others.

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
I realize that command does have its fascination, even under  circum-
stances such as these, but I neither enjoy the idea of command nor am
I  frightened  of  it. It simply exists, and I will do whatever logi-
cally needs to be done.
	-- Spock, "The Galileo Seven", stardate 2812.7

  reply	other threads:[~2010-05-27 21:03 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-20 22:01 [U-Boot] [PATCH] powerpc: add support for the Freescale P1022DS reference board Timur Tabi
2010-05-20 22:33 ` Wolfgang Denk
2010-05-20 23:13   ` Kumar Gala
2010-05-21  6:50     ` Wolfgang Denk
2010-05-20 23:23   ` Timur Tabi
2010-05-21  7:07     ` Wolfgang Denk
2010-05-21 13:45       ` Timur Tabi
2010-05-21 14:22         ` Wolfgang Denk
2010-05-21 14:33           ` Timur Tabi
2010-05-21 16:07           ` Timur Tabi
2010-05-26 18:12       ` Timur Tabi
2010-05-26 18:17         ` Scott Wood
2010-05-26 18:19           ` Timur Tabi
2010-05-26 19:04             ` Scott Wood
2010-05-26 19:34               ` Timur Tabi
2010-05-26 19:46                 ` Scott Wood
2010-05-26 21:59                   ` Timur Tabi
2010-05-25 18:30   ` Timur Tabi
2010-05-26 20:10     ` Wolfgang Denk
2010-05-26 20:18       ` Timur Tabi
2010-05-26 20:24       ` Timur Tabi
2010-05-27  7:02         ` Wolfgang Denk
2010-05-27 14:31           ` Timur Tabi
2010-05-27 18:11             ` Wolfgang Denk
2010-05-27 18:25               ` Timur Tabi
2010-05-27 19:03                 ` Scott Wood
2010-05-27 19:07                   ` Timur Tabi
2010-05-27 19:10                     ` Scott Wood
2010-05-27 19:54                       ` Wolfgang Denk
2010-05-27 19:53                     ` Wolfgang Denk
2010-05-27 20:11                       ` Timur Tabi
2010-05-27 21:10                         ` Wolfgang Denk
2010-05-27 19:53                   ` Wolfgang Denk
2010-05-27 20:03                     ` Timur Tabi
2010-05-27 20:59                       ` Wolfgang Denk
2010-05-27 20:05                     ` Scott Wood
2010-05-27 21:03                       ` Wolfgang Denk [this message]
2010-05-27 19:45                 ` Wolfgang Denk
2010-05-27 19:54                   ` Timur Tabi
2010-05-27 20:00                     ` Wolfgang Denk
2010-05-27 20:10                       ` Scott Wood
2010-05-21  0:26 ` [U-Boot] [PATCH] powerpc: add support for the FreescaleP1022DS " Liu Dave-R63238
2010-05-21 15:25   ` Timur Tabi
2010-05-21  9:46 ` [U-Boot] [PATCH] powerpc: add support for the Freescale P1022DS " Kumar Gala

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