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From: Diederik de Haas To: wens@kernel.org Cc: Daniel Golle , linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Rob Herring , Conor Dooley , linux-kernel@vger.kernel.org, Herbert Xu , Martin Kaiser , Sascha Hauer , Sebastian Reichel , Ard Biesheuvel , Uwe =?ISO-8859-1?Q?Kleine=2DK=F6nig?= , devicetree@vger.kernel.org, linux-crypto@vger.kernel.org, Philipp Zabel , Olivia Mackall , Krzysztof Kozlowski , Dragan Simic , Aurelien Jarno , Heiko Stuebner , Anand Moon Subject: Re: [PATCH v7 0/3] hwrng: add hwrng support for Rockchip RK3568 Date: Wed, 17 Jul 2024 10:49:27 +0200 Message-ID: <1980864.2la4r23YhA@bagend> Organization: Connecting Knowledge In-Reply-To: References: <2451882.5D0I8gZW9r@bagend> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart7866392.9XRq9apFvr"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240717_014941_574107_0F82829A X-CRM114-Status: GOOD ( 12.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --nextPart7866392.9XRq9apFvr Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii"; protected-headers="v1" From: Diederik de Haas To: wens@kernel.org Date: Wed, 17 Jul 2024 10:49:27 +0200 Message-ID: <1980864.2la4r23YhA@bagend> Organization: Connecting Knowledge MIME-Version: 1.0 On Wednesday, 17 July 2024 10:38:40 CEST Chen-Yu Tsai wrote: > > On my Rock64('s) (RK3328) it doesn't work at all: > > > > ``` > > root@cs21:~# cat /dev/hwrng | rngtest -c 1000 > > rngtest 5 > > ... > > rngtest: starting FIPS tests... > > cat: /dev/hwrng: No such device > > rngtest: entropy source drained > > ``` > > RK3399 and RK3328 are covered by a different driver: > > https://lore.kernel.org/all/20230707115242.3411259-1-clabbe@baylibre.com/ > > And that patch says the TRNG on the RK3328 is utterly broken. Yeah, someone made me aware of that post and then ofc I had to see it for myself ;-) Cheers, Diederik --nextPart7866392.9XRq9apFvr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQT1sUPBYsyGmi4usy/XblvOeH7bbgUCZpeFlwAKCRDXblvOeH7b bshTAQDJFuCJl89JpyQiEgOZcFpEdKK4wKZJfTiMN7nEsW1nYQD+Jeal7PPYI8Ef wQuybNEyOBF1DlqrvTIOJCnuQl990wM= =2lk0 -----END PGP SIGNATURE----- --nextPart7866392.9XRq9apFvr--