From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
To: Hein Tibosch <hein_tibosch@yahoo.es>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Nicolas Ferre <nicolas.ferre@atmel.com>,
"ludovic.desroches" <ludovic.desroches@atmel.com>,
Havard Skinnemoen <havard@skinnemoen.net>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
Chris Ball <cjb@laptop.org>
Subject: Re: [PATCH v2] avr32: at32ap700x: set DMA slave properties for MCI dw_dmac
Date: Thu, 30 Aug 2012 21:22:53 +0200 [thread overview]
Message-ID: <20120830192253.GA10588@samfundet.no> (raw)
In-Reply-To: <503F9DC1.9030601@yahoo.es>
Around Fri 31 Aug 2012 01:07:13 +0800 or thereabout, Hein Tibosch wrote:
> The MCI makes use of the dw_dmac driver when DMA is being used.
> Due to recent changes the driver was broken because:
> - the SMS field in the CTLL register received the wrong value 0
> - a patch in dw_dmac (http://lkml.org/lkml/2012/1/18/52)
> allowed for 64-bit transfers on the memory side, giving an illegal
> value of 3 in the SRC/DST_TR_WIDTH register.
>
> This patch sets the SMS (Source Master Select) to 1 and limits
> the maximum transfer width to 32 bits.
>
> Note: this can only be applied after my patch:
> [PATCH v2 2/2] dw_dmac: max_mem_width limits value for
> SRC/DST_TR_WID register
>
> Signed-off-by: Hein Tibosch <hein_tibosch@yahoo.es>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
<snipp diff>
--
mvh
Hans-Christian Egtvedt
prev parent reply other threads:[~2012-08-30 19:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-30 17:07 [PATCH v2] avr32: at32ap700x: set DMA slave properties for MCI dw_dmac Hein Tibosch
2012-08-30 19:22 ` Hans-Christian Egtvedt [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=20120830192253.GA10588@samfundet.no \
--to=egtvedt@samfundet.no \
--cc=akpm@linux-foundation.org \
--cc=cjb@laptop.org \
--cc=havard@skinnemoen.net \
--cc=hein_tibosch@yahoo.es \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=ludovic.desroches@atmel.com \
--cc=nicolas.ferre@atmel.com \
/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.