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From: Andrew May <acmay@acmay.homeip.net>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] more on booting uboot from flash on a memec evaluation board
Date: Mon, 21 Mar 2005 10:22:25 -0800	[thread overview]
Message-ID: <1111429345.29601.4.camel@mud> (raw)
In-Reply-To: <1111420119l.20542l.2l@ipnnarval>

On Mon, 2005-03-21 at 15:48 +0000, grave wrote:
>More information on our design :
>
>We have 32 MB of RAM @ 0x00000000
>A flash system @ 0x0300000

Is that your only flash? It needs to be mapped at the top of mem
so it provides the 0xfffffffc address.


>   .boot 0xfffffffc :
>   {
>       *(.boot)
>   }
>}

If flash is mapped at 0x0300000 then what does it read at 0xfffffffc?
I think the typical ref designs call for using BRAM up there to put your
boot code, but that may just be a waste to have it just jump to flash.
You might at well move flash up to the top of the mem map.

  reply	other threads:[~2005-03-21 18:22 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-18 12:38 [U-Boot-Users] booting uboot from flash on a memec evaluation board grave
2005-03-18 16:31 ` Wolfgang Denk
2005-03-18 16:51   ` Re : " grave
2005-03-18 17:32     ` Wolfgang Denk
2005-03-21  9:37       ` Re : " grave
2005-03-21 15:48         ` [U-Boot-Users] more on " grave
2005-03-21 18:22           ` Andrew May [this message]
2005-03-22  6:51           ` Peter Ryser
2005-03-22  6:46 ` [U-Boot-Users] " Peter Ryser

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