From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: mx6: ddr: add pd_fast_exit flag to system information
Date: Wed, 22 Apr 2015 14:42:10 +0200 [thread overview]
Message-ID: <55379722.5060209@denx.de> (raw)
In-Reply-To: <1428105172-14715-1-git-send-email-tharvey@gateworks.com>
On 04/04/2015 01:52, Tim Harvey wrote:
> DDR3 has a special Precharge power-down mode: fast-exit vs slow-exit.
>
> In slow-exit mode the DLL is off but in some quiescent state that makes it easy
> to turn on again in tXPDLL cycles (about 10tCK) vs the full tDLLK (512tCK).
> In fast-exist mode the DLL is maintained such that it is ready again in about
> 3tCK.
>
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> ---
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================
prev parent reply other threads:[~2015-04-22 12:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-03 23:52 [U-Boot] [PATCH] arm: mx6: ddr: add pd_fast_exit flag to system information Tim Harvey
2015-04-22 12:42 ` Stefano Babic [this message]
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=55379722.5060209@denx.de \
--to=sbabic@denx.de \
--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.