From: Nick Thompson <nick.thompson@ge.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH RFC 0/2] dcache on ARM
Date: Tue, 26 Jan 2010 17:13:12 +0000 [thread overview]
Message-ID: <4B5F22A8.1000804@ge.com> (raw)
In-Reply-To: <20100126161608.GA20946@morgana.gnudd.com>
On 26/01/10 16:16, Alessandro Rubini wrote:
> These patches enable the dcache for ARM9. It's mainly an RFC, as some
> details are still to be sorted out, but they work fine (and the speed
> increase is noticeable for kernel boots and cp.b -- didn't make more
> tests.
I'm all for speed increases :-)
On TI DA830, the 1.0 & 1.1 revision of the silicon have a data caching
bug. You can use data caching, but only in write thru' mode. This is
fixed in the very latest 2.0 silicon. Even still it is better than
no caching as proved in Linux.
Is it simple for you to enable different levels of caching by config?
Nick.
next prev parent reply other threads:[~2010-01-26 17:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-26 16:16 [U-Boot] [PATCH RFC 0/2] dcache on ARM Alessandro Rubini
2010-01-26 17:13 ` Nick Thompson [this message]
2010-01-26 21:50 ` Alessandro Rubini
2010-01-26 17:21 ` Armando VISCONTI
2010-01-26 17:36 ` Alessandro Rubini
2010-01-26 17:59 ` Armando VISCONTI
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B5F22A8.1000804@ge.com \
--to=nick.thompson@ge.com \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox