From: Armando VISCONTI <armando.visconti@st.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH RFC 0/2] dcache on ARM
Date: Tue, 26 Jan 2010 18:21:25 +0100 [thread overview]
Message-ID: <4B5F2495.2050009@st.com> (raw)
In-Reply-To: <20100126161608.GA20946@morgana.gnudd.com>
Alessandro,
I don't see the flush_cache() call inside cmd_bootm.c.
Don't you think it is necessary before jumping to Linux?
Or am I missing something?
Rgds,
Arm
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 tested the code on at91sam9263ek and nhk8815. No makeall at this
> point, as I'm mainly interested in comments here.
>
> This is based on the cache-cp15.c infrastructure set up by
> Jean-Christophe for icache enabling.
>
> I'm sure Drasko Draskovic has better code, but since he has sent
> no a patch yet (asked in Mar 2009, and then again and again),
> here is my approach.
>
> Alessandro Rubini (2):
> flush cache for arm926
> arm cp15: setup mmu and enable dcache
>
> lib_arm/cache-cp15.c | 37 +++++++++++++++++++++++++++++++++++++
> lib_arm/cache.c | 6 ++++++
> 2 files changed, 43 insertions(+), 0 deletions(-)
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>
--
-- "Every step appears to be the unavoidable consequence of the
-- preceding one." (A. Einstein)
--
Armando Visconti Mobile: (+39) 346 8879146
Senior SW Engineer Fax: (+39) 02 93519290
CPG Work: (+39) 02 93519683
Computer System Division e-mail: armando.visconti at st.com
ST Microelectronics TINA: 051 4683
next prev parent reply other threads:[~2010-01-26 17:21 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
2010-01-26 21:50 ` Alessandro Rubini
2010-01-26 17:21 ` Armando VISCONTI [this message]
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=4B5F2495.2050009@st.com \
--to=armando.visconti@st.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.