From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/7] ARM: OMAP: Disable POSTED mode for errata i103 and i767
Date: Tue, 26 Nov 2013 14:05:43 -0800 [thread overview]
Message-ID: <20131126220543.GP26766@atomide.com> (raw)
In-Reply-To: <5293CC93.6040603@ti.com>
* Joel Fernandes <joelf@ti.com> [131125 14:18]:
> On 11/25/2013 04:14 PM, Tony Lindgren wrote:
> > * Joel Fernandes <joelf@ti.com> [131125 13:46]:
> >> Enabling of Posted mode is seen to cause problems on dmtimer modules on AM33xx
> >> (much like other OMAPs). Reference discussions on forums [1] [2]. Earlier
> >> patch solving this on other OMAPs [3].
> >>
> >> For OMAP SoCs with this errata, the fix has been to not enable Posted mode.
> >> However, on some SoCs (atleast AM33xx) which carry this errata, Posted mode
> >> is enabled on reset. So we not only need to ignore enabling of the POSTED bit
> >> when the timer is requested, but also disable Posted mode if errata is present.
> >
> > This could explain some occasional lost timers I saw a while back when
> > testing things.. We most likely should merge for the -rc series with cc stable.
>
> Sure, I agree.
>
> >
> > Does this depend on the other patches in this series?
> >
>
> No it doesn't depend.
OK thanks applying into omap-for-v3.13/fixes-take4.
Tony
next prev parent reply other threads:[~2013-11-26 22:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-25 21:44 [PATCH 0/7] AES/DES hwmod data and dmtimer fix Joel Fernandes
2013-11-25 21:44 ` [PATCH 1/7] ARM: OMAP: hwmod: Add SYSC offsets for AES IP Joel Fernandes
2013-11-25 21:44 ` [PATCH 2/7] ARM: DRA7xx: hwmod: Add hwmod data for DES IP Joel Fernandes
2013-11-25 21:44 ` [PATCH 3/7] ARM: DRA7xx: hwmod: Add hwmod data for AES IP Joel Fernandes
2013-11-25 21:44 ` [PATCH 4/7] ARM: OMAP4: " Joel Fernandes
2013-11-25 21:44 ` [PATCH 5/7] ARM: OMAP4: hwmod: add hwmod data for DES IP Joel Fernandes
2013-11-25 22:11 ` Tony Lindgren
2013-11-25 22:25 ` Joel Fernandes
2013-11-25 21:44 ` [PATCH 6/7] ARM: OMAP: Disable POSTED mode for errata i103 and i767 Joel Fernandes
2013-11-25 22:14 ` Tony Lindgren
2013-11-25 22:17 ` Joel Fernandes
2013-11-26 22:05 ` Tony Lindgren [this message]
2013-11-25 21:44 ` [PATCH 7/7] OMAP: AM33xx: hwmod: Correct AES module SYSC type Joel Fernandes
2013-11-25 22:12 ` [PATCH 0/7] AES/DES hwmod data and dmtimer fix Tony Lindgren
2013-11-25 22:24 ` Joel Fernandes
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=20131126220543.GP26766@atomide.com \
--to=tony@atomide.com \
--cc=linux-arm-kernel@lists.infradead.org \
/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;
as well as URLs for NNTP newsgroup(s).