From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Enabling ARM DCache (and MMU setup) in U-Boot
Date: Mon, 30 Mar 2009 22:31:05 +0200 [thread overview]
Message-ID: <20090330203105.GC1433@game.jcrosoft.org> (raw)
In-Reply-To: <5ec3d7930903301256i6f2004b4gf4faab1549d2a802@mail.gmail.com>
On 21:56 Mon 30 Mar , Drasko DRASKOVIC wrote:
> Hi all,
> I would like to eneble DCache in U-Boot, because peripheral register R/W and
> SDRAM R/W is extremely slow on my platform, so booting Linux image takes
> unexceptable long time. But apparently for ARM, MMU setup is needed first.
> Now, I did not find example on any presented ARM platforms included in
> U-Boot.
>
> Did somebody maybe suceeded on doing this and where can I find some C/ASM
> examples how to set up MMU and enable DCache for ARM?
before booting linux you must disable the cache which will be re-enable by
linux.
Could you give us more details about your soc, u-boot verison and linux
version
Best Regards,
J.
next prev parent reply other threads:[~2009-03-30 20:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-30 19:56 [U-Boot] Enabling ARM DCache (and MMU setup) in U-Boot Drasko DRASKOVIC
2009-03-30 20:31 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2009-03-31 12:20 ` Drasko DRASKOVIC
2009-03-31 12:21 ` Jean-Christophe PLAGNIOL-VILLARD
2009-03-31 13:36 ` Drasko DRASKOVIC
2009-03-31 14:09 ` Jean-Christophe PLAGNIOL-VILLARD
2009-03-31 15:13 ` Drasko DRASKOVIC
2009-04-06 17:42 ` Drasko DRASKOVIC
2009-03-31 14:09 ` Drasko DRASKOVIC
-- strict thread matches above, loose matches on Subject: below --
2010-01-26 11:25 A. Geisreiter
2010-07-01 15:35 Rasha Eqbal
2010-07-01 15:57 ` Alessandro Rubini
[not found] ` <AANLkTilN2FXWrLGTAiTAeuWDIlevjISEsvE9dsihe-xq@mail.gmail.com>
[not found] ` <20100701175458.GA14755@morgana.i.gnudd.com>
2010-07-02 5:36 ` Rasha Eqbal
2010-07-05 5:31 ` Lv Terry-R65388
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