From mboxrd@z Thu Jan 1 00:00:00 1970 From: Detlev Zundel Date: Thu, 18 Feb 2010 14:11:22 +0100 Subject: [U-Boot] Boot based on I2C EEPROM value In-Reply-To: (Detlev Zundel's message of "Thu, 18 Feb 2010 13:52:48 +0100") References: Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi again, > Ah, this is interesting. I was about to tell you to use the "standard" > i2c commands to transfer data from the chip into memory and then use the > hush shell and the standard "itest *addr = 1" facility. Unfortunately, > the "i2c" subsystem does not implement such functionality. So currently > I would advise to implement such "read" and "write" operations to > transfer to/from memory. > > With this addition, you could even propose a patch to remove crc32 > subcommand from i2c as this can then be done in two steps. So maybe you > can even get away with this addition without adding anything to the > binary size of U-Boot ;) In the meantime I found the "eeprom" command, which should allow you to transfer the data into memory. Still I believe the proposed additions/removals to the "i2c" subsystem to be worthwhile. Cheers Detlev -- Microsoft gives you windows, Linux gives you the whole house. -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de