From: S. Egbert <s.egbert@sbcglobal.net>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] I2C eeprom utilities
Date: Wed, 08 Mar 2006 08:53:48 -0800 [thread overview]
Message-ID: <440F0C1C.20907@sbcglobal.net> (raw)
In-Reply-To: <20060308163943.21311.qmail@web30513.mail.mud.yahoo.com>
>
> I ported and enabled the eeprom commands to u-boot.
>>From the readme file, it expects a bin file to be
> loaded into ram and then using the "eeprom write"
> command we should be able to program the eeprom.
> => tftp 100000 eeprom.bin
> => md 100000
> => eeprom write 100000 0 100
> => eeprom read 150000 0 100
> => md 150000
> However, when I try the above and check the eeprom
> content only the last few bytes are programmed. Any
> idea? How to generate this bin file? Also, the "imd"
> command is not working properly on my set up.
>
> I am using u-boot version 1.1.2 on a custom board with
> mpc8541 cpu.
>
>
Only last few bytes are written in flash after a sequential write block?
Usually indicates that the flash bus has a SMALLER bus width support
(i.e., 8 or 16-bit) and software operation is performing 32-bit
operations instead.
S. Egbert
next prev parent reply other threads:[~2006-03-08 16:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-08 16:39 [U-Boot-Users] I2C eeprom utilities Rahmat M
2006-03-08 16:53 ` S. Egbert [this message]
2006-03-08 17:10 ` Wolfgang Denk
2006-03-09 0:40 ` Rahmat M
2006-03-08 17:09 ` Wolfgang Denk
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