From: Jerry Van Baren <gerald.vanbaren@ge.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Increasing U-Boot partition size
Date: Mon, 04 Aug 2008 16:35:24 -0400 [thread overview]
Message-ID: <4897680C.1000309@ge.com> (raw)
In-Reply-To: <20080804203311.E078124885@gemini.denx.de>
Wolfgang Denk wrote:
> In message <489765FB.1010002@ge.com> you wrote:
>>> Your choices are 0xfff00000 and zero, based on the BMS (Boot Memory
>>> Space) bit of the low reset control word.
>>>
>>> -Scott
>> ...and of the two options, I recommend 0xfff00000 ("boot high"). Note
>> that the start of u-boot is 0xfff00000 but the reset vector itself is
>> 0xfff00100 (or 0x00000100 for "boot low"). The first 0x100 bytes has
>> the u-boot signature and version info.
>
> I disagree.
>
> High-booting systems are a PITA. You always lose a full megabyte at
> the end of the flash of which usually only 256 kB or less are needed
> for U-Boot, wasting 0.75 MB.
>
> Also, systems with varying number of flash banks and/or flash sizes
> are not really straightforward to handle.
>
> Low-booting is much, much saner.
>
> Best regards,
>
> Wolfgang Denk
Arrr, my insanity. Wolfgang is correct, of course.
Sorry,
gvb
next prev parent reply other threads:[~2008-08-04 20:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-01 17:16 [U-Boot-Users] Increasing U-Boot partition size Jatin Sharma
2008-08-04 17:56 ` Scott Wood
2008-08-04 19:03 ` Jatin Sharma
2008-08-04 19:04 ` Scott Wood
2008-08-04 19:59 ` Jatin Sharma
2008-08-04 20:01 ` Scott Wood
2008-08-04 20:03 ` Scott Wood
2008-08-04 20:26 ` Jerry Van Baren
2008-08-04 20:33 ` Wolfgang Denk
2008-08-04 20:35 ` Jerry Van Baren [this message]
2008-08-04 20:44 ` David Hawkins
2008-08-04 20:50 ` Jerry Van Baren
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