From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>,
Kukjin Kim <kgene@kernel.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Tomasz Figa <tomasz.figa@gmail.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-clk@vger.kernel.org, Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
linux-crypto@vger.kernel.org
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Subject: Re: [PATCH 0/3] ARM: dts: Enable Exynos RNG module
Date: Tue, 20 Oct 2015 08:50:21 +0900 [thread overview]
Message-ID: <562581BD.3070609@samsung.com> (raw)
In-Reply-To: <56251627.4050908@math.uni-bielefeld.de>
On 20.10.2015 01:11, Tobias Jakobi wrote:
> Hello Krzysztof,
>
> I can confirm that this also works on a Odroid-X2, so I guess it's safe
> to enable the PRNG for all Exynos4412-based Odroid devices.
Sure, I can send a patch for that. I can test it later also on Odroid-U3.
>
> Any chance that you might also take a look at the other hwcrypto stuff
> on the SoC ('samsung,exynos4210-secss' compatible)?
What do you mean? The s5p-sss driver already supports Device Tree.
Best regards,
Krzysztof
>
> With best wishes,
> Tobias
>
>
> Krzysztof Kozlowski wrote:
>> Hi,
>>
>>
>> The patchset adds necessary clock from Security SubSystem (SSS)
>> and enables the PRNG module of Exynos for Trats2 board.
>>
>> The first patch (clock) is required for other ones so please
>> take everything in one step.
>>
>> The actual Device Tree support (and compatible) was sent in separate
>> patch:
>> - https://patchwork.kernel.org/patch/7432891/
>> - http://marc.info/?l=linux-crypto-vger&m=144522952725052&w=2
>>
>> The device can be tested (after applying both patchsets) with:
>> $ echo exynos > /sys/class/misc/hw_random/rng_current
>> $ dd if=/dev/hwrng of=/dev/null bs=1 count=16
>>
>>
>> Best regards,
>> Krzysztof
>>
>> Krzysztof Kozlowski (3):
>> clk: samsung: exynos4: Add SSS gate clock
>> ARM: dts: Add PRNG module for exynos4
>> ARM: dts: Enable PRNG module on exynos4412-trats2
>>
>> arch/arm/boot/dts/exynos4.dtsi | 8 ++++++++
>> arch/arm/boot/dts/exynos4412-trats2.dts | 4 ++++
>> drivers/clk/samsung/clk-exynos4.c | 1 +
>> include/dt-bindings/clock/exynos4.h | 1 +
>> 4 files changed, 14 insertions(+)
>>
>
>
next prev parent reply other threads:[~2015-10-19 23:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-19 5:00 [PATCH 0/3] ARM: dts: Enable Exynos RNG module Krzysztof Kozlowski
2015-10-19 5:00 ` [PATCH 1/3] clk: samsung: exynos4: Add SSS gate clock Krzysztof Kozlowski
2015-10-19 19:59 ` Stephen Boyd
2015-10-19 23:51 ` Krzysztof Kozlowski
2015-10-19 5:00 ` [PATCH 2/3] ARM: dts: Add PRNG module for exynos4 Krzysztof Kozlowski
2015-10-19 5:00 ` [PATCH 3/3] ARM: dts: Enable PRNG module on exynos4412-trats2 Krzysztof Kozlowski
2015-10-19 16:11 ` [PATCH 0/3] ARM: dts: Enable Exynos RNG module Tobias Jakobi
2015-10-19 23:50 ` Krzysztof Kozlowski [this message]
2015-10-24 23:58 ` Tobias Jakobi
2015-10-29 6:24 ` Krzysztof Kozlowski
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