From: Ulf Samuelsson <ulf@atmel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] support usb storage in u-boot for at91rm9200
Date: Tue, 19 Sep 2006 08:08:57 +0200 [thread overview]
Message-ID: <004601c6dbb4$8b89d4e0$7d033b0a@atmel.com> (raw)
In-Reply-To: 450F8734.5090301@koansoftware.com
----- Original Message -----
From: "Marco Cavallini" <arm.linux@koansoftware.com>
To: "kiennd" <kiennd@gmail.com>
Cc: <u-boot-users@lists.sourceforge.net>
Sent: Tuesday, September 19, 2006 7:59 AM
Subject: Re: [U-Boot-Users] support usb storage in u-boot for at91rm9200
>> Your problem is that U-boot is linked to the wrong address (0).
>> Instead it should be linked to the position, where you intend to run
>> u-boot (in SDRAM)
>> I know Wolfgang Denx diesnt like the idea of running U.boot from RAM,
>> but you cannot run from an SPI flash, have to copy to RAM first,
>> and the SDRAM on AT91RM9200 is located at 0x20000000 and above.
>>
>> The prinout you see, is not from U.boot.
>> It looks like a customized version of "dataflashboot.bin"
>> It "bombs" after dataflashboot.bin has loaded u-boot into SDRAM
>> and jumped to it starting point.
>>
>> Since it is in the wrong locatgion, all the constant string pointers are
>> off, and really only points at '\0' characters, so any attempt to
>> printout data will fail.
>>
>>
>
> If you are using Dataflash to store u-boot,
> you can read this as well.
> http://www.koansoftware.com/it/art.php?art=90
> HTH
>
> --
The Atmel web site is unfortunately a little dated.
The ftp://at91dist:distrib at ftp.atmel.fr/ has more updated dataflashboot in the Third Party Section
Best Regards
Ulf Samuelsson ulf at atmel.com
Atmel Nordic AB
Mail: Box 2033, 174 02 Sundbyberg, Sweden
Visit: Kavalleriv?gen 24, 174 58 Sundbyberg, Sweden
Phone +46 (8) 441 54 22 Fax +46 (8) 441 54 29
GSM +46 (706) 22 44 57
Technical support when I am not available:
AT89 C51 Applications Group: mailto:micro.hotline at nto.atmel.com
AT90 AVR Applications Group: mailto:avr at atmel.com
AT91 ARM Applications Group: mailto:at91support at atmel.com
FPSLIC Application Group: mailto:fpslic at atmel.com
Best AVR link: www.avrfreaks.net
prev parent reply other threads:[~2006-09-19 6:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <eca5382e0609180105gd3f4b0bka3eded8cc3df72dd@mail.gmail.com>
2006-09-18 8:11 ` [U-Boot-Users] support usb storage in u-boot for at91rm9200 kiennd
2006-09-18 20:19 ` Ulf Samuelsson
2006-09-19 5:59 ` Marco Cavallini
2006-09-19 6:08 ` Ulf Samuelsson [this message]
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