From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
To: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: linux-arm-kernel@lists.infradead.org,
Boris BREZILLON <boris.brezillon@free-electrons.com>,
Ludovic Desroches <ludovic.desroches@atmel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] ARM: dts: at91: sama5d4: change DMA allocation for secure peripherals
Date: Wed, 7 Dec 2016 09:57:16 +0100 [thread overview]
Message-ID: <20161207085716.snqzkhuqyfl6uto6@piout.net> (raw)
In-Reply-To: <20161130173630.11944-1-nicolas.ferre@atmel.com>
On 30/11/2016 at 18:36:29 +0100, Nicolas Ferre wrote :
> Some peripherals are "Programmable Secure" but left as "Secure" by default.
> If tried to be connected to Non-Secure DMA controller, the possibility to
> leak secure data is prevented so using these peripherals with DMA1 is not
> possible with this default configuration (MATRIX_SPSELR registers setup by
> bootloader).
> Move them to DMA0 which is an "Always-Secure" DMA controller.
>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
> ---
> arch/arm/boot/dts/sama5d4.dtsi | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
All applied, thanks.
--
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
prev parent reply other threads:[~2016-12-07 8:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 17:36 Nicolas Ferre
2016-11-30 17:36 ` [PATCH 2/2] ARM: dts: at91: sama5d4 Xplained: enable UART1 node with DMA Nicolas Ferre
2016-12-07 8:57 ` Alexandre Belloni [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=20161207085716.snqzkhuqyfl6uto6@piout.net \
--to=alexandre.belloni@free-electrons.com \
--cc=boris.brezillon@free-electrons.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®