From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Hadar Gat <Hadar.Gat@arm.com>
Cc: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <Mark.Rutland@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Alexander Sverdlin <alexander.sverdlin@nokia.com>,
Thomas Gleixner <tglx@linutronix.de>,
Tomer Maimon <tmaimon77@gmail.com>,
Randy Dunlap <rdunlap@infradead.org>,
Zaibo Xu <xuzaibo@huawei.com>,
Daniel Thompson <daniel.thompson@linaro.org>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Gilad Ben-Yossef <gilad@benyossef.com>,
Ofir Drang <Ofir.Drang@arm.com>, nd <nd@arm.com>
Subject: Re: [PATCH v7 0/3] hw_random: introduce Arm CryptoCell TRNG driver
Date: Mon, 20 Apr 2020 15:45:28 +0200 [thread overview]
Message-ID: <CAMuHMdV1Lp0uEOm_KtUA-nF7-6y1kfyvArcunrLipp6h5A_GMw@mail.gmail.com> (raw)
In-Reply-To: <DB6PR0802MB25330E55914346B46288C712E9D40@DB6PR0802MB2533.eurprd08.prod.outlook.com>
Hi Hadar,
On Mon, Apr 20, 2020 at 2:27 PM Hadar Gat <Hadar.Gat@arm.com> wrote:
> > From: Geert Uytterhoeven <geert@linux-m68k.org>
> > Sent: Monday, 20 April 2020 12:35
> >
> > On Fri, Mar 27, 2020 at 7:11 AM Hadar Gat <hadar.gat@arm.com> wrote:
> > > The Arm CryptoCell is a hardware security engine.
> > > This patch introduces driver for its TRNG (True Random Number
> > > Generator) engine.
> >
> > Thanks for your series!
> >
> > I am wondering what is the relation between this and
> > Documentation/devicetree/bindings/crypto/arm-cryptocell.txt?
>
> Arm TrustZone CryptoCell hardware contains both cryptographic engine (ccree) and true random number generator engine (cctrng).
OK.
> These are separate engines with some sharing in logic and interface.
Do they share the same register block?
> cctrng engine may not always be present.
I assume that applies to e.g. the older 630p?
> The devicetree documentation is in:
> For ccree - Documentation/devicetree/bindings/crypto/arm-cryptocell.txt
> For cctrng - Documentation/devicetree/bindings/rng/arm-cctrng.yaml
Thank you, I had already read both documents.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2020-04-20 13:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 6:10 [PATCH v7 0/3] hw_random: introduce Arm CryptoCell TRNG driver Hadar Gat
2020-03-27 6:10 ` [PATCH v7 1/3] dt-bindings: add device tree binding for Arm CryptoCell trng engine Hadar Gat
2020-04-05 1:30 ` Rob Herring
2020-03-27 6:10 ` [PATCH v7 2/3] hw_random: cctrng: introduce Arm CryptoCell driver Hadar Gat
2020-04-20 13:44 ` Geert Uytterhoeven
2020-04-21 13:16 ` Hadar Gat
2020-04-21 13:34 ` Geert Uytterhoeven
2020-04-21 15:13 ` Hadar Gat
2020-04-21 16:26 ` Geert Uytterhoeven
2020-04-22 10:37 ` Hadar Gat
2020-03-27 6:10 ` [PATCH v7 3/3] MAINTAINERS: add HG as cctrng maintainer Hadar Gat
2020-04-16 6:51 ` [PATCH v7 0/3] hw_random: introduce Arm CryptoCell TRNG driver Herbert Xu
2020-04-20 9:34 ` Geert Uytterhoeven
2020-04-20 12:27 ` Hadar Gat
2020-04-20 13:45 ` Geert Uytterhoeven [this message]
2020-04-21 13:12 ` Hadar Gat
2020-04-21 13:39 ` Geert Uytterhoeven
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