From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] ARM POST Tests.
Date: Wed, 20 Jul 2011 15:15:17 +0200 [thread overview]
Message-ID: <20110720131517.8112B1579DF2@gemini.denx.de> (raw)
In-Reply-To: <4E26CAD9.3090204@keymile.com>
Dear Valentin Longchamp,
In message <4E26CAD9.3090204@keymile.com> you wrote:
>
> We are currently planning to move away from I2C EEPROM for environment (for
> future hardware), but what would you advise me to do for our current hardware
> where the environment is in this EEPROM ?
This depends on the specific features of your hardware.2s
Eventually you can increase the I2C clock.
Or use a h/w I2C driver instead of the soft-I2C driver.
Eventually you have plenty of memory that is available early (say,
several MB of L2 cache or so :-) and you can read the whole
environment into "RAM" in one rush.
Except for that there is little we can do. I2C is a PITA, also
reliability-wise.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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-- Kirk, "Errand of Mercy", stardate 3198.9
next prev parent reply other threads:[~2011-07-20 13:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-14 12:59 [U-Boot] ARM POST Tests sreekumar.sivakumar at wipro.com
2011-07-15 8:13 ` Heiko Schocher
2011-07-19 15:29 ` Valentin Longchamp
2011-07-19 18:45 ` Wolfgang Denk
2011-07-20 10:59 ` Valentin Longchamp
2011-07-20 12:20 ` Wolfgang Denk
2011-07-20 12:32 ` Valentin Longchamp
2011-07-20 13:15 ` Wolfgang Denk [this message]
2011-07-19 18:18 ` Mike Frysinger
-- strict thread matches above, loose matches on Subject: below --
2014-02-06 13:14 [U-Boot] arm post tests shobin b
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