From: Marc Pignat <marc.pignat@hevs.ch>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>,
Aras Vaichas <arasv@magellan-technology.com>,
linux-embedded@vger.kernel.org
Subject: Re: AT91SAM9G20 design and boot times
Date: Mon, 15 Jun 2009 08:32:36 +0200 [thread overview]
Message-ID: <200906150832.36479.marc.pignat@hevs.ch> (raw)
In-Reply-To: <20090612140626.GA10372@game.jcrosoft.org>
Hi all!
> if the boottime is critical I'll recommend you NOR + XIP
Nak, please have a look at "interest in XIP? - boot time benchmarks"
(http://marc.info/?l=linux-arm-kernel&m=117198517723134&w=2)
But in brief : the kernel is started faster with xip, but is so slow that it
will end booting after the non-xip kernel.
NOR flash bandwidth is *very* slow compared to SDRAM.
Best regards
Marc
next prev parent reply other threads:[~2009-06-15 6:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <ed62800906102037q71f2a6bdq835793a1ac36c41b@mail.gmail.com>
2009-06-11 3:43 ` AT91SAM9G20 design and boot times Aras Vaichas
2009-06-11 12:48 ` Nicolas Ferre
2009-06-11 13:58 ` Robin Getz
2009-06-12 14:06 ` Jean-Christophe PLAGNIOL-VILLARD
2009-06-15 6:32 ` Marc Pignat [this message]
2009-06-12 18:37 ` AT91SAM9G20 design and power (was and boot times) Christian Gagneraud
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