From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E541C2D0C5 for ; Wed, 11 Dec 2019 09:34:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5BA5220637 for ; Wed, 11 Dec 2019 09:34:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728456AbfLKJdz (ORCPT ); Wed, 11 Dec 2019 04:33:55 -0500 Received: from helcar.hmeau.com ([216.24.177.18]:53828 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727829AbfLKJdz (ORCPT ); Wed, 11 Dec 2019 04:33:55 -0500 Received: from gondobar.mordor.me.apana.org.au ([192.168.128.4] helo=gondobar) by deadmen.hmeau.com with esmtps (Exim 4.89 #2 (Debian)) id 1ieyNF-0008KJ-G0; Wed, 11 Dec 2019 17:33:37 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1ieyN8-0000Aw-DU; Wed, 11 Dec 2019 17:33:30 +0800 Date: Wed, 11 Dec 2019 17:33:30 +0800 From: Herbert Xu To: Stephen Brennan Cc: Matt Mackall , Rob Herring , Mark Rutland , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Eric Anholt , Stefan Wahren , Arnd Bergmann , Greg Kroah-Hartman , Florian Fainelli , linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org Subject: Re: [PATCH v2 0/3] Raspberry Pi 4 HWRNG Support Message-ID: <20191211093330.h5qz4oyll3jsuqot@gondor.apana.org.au> References: <20191119061407.69911-1-stephen@brennan.io> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191119061407.69911-1-stephen@brennan.io> User-Agent: NeoMutt/20170113 (1.7.2) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Mon, Nov 18, 2019 at 10:14:04PM -0800, Stephen Brennan wrote: > This patch series enables support for the HWRNG included on the Raspberry > Pi 4. It is simply a rebase of Stefan's branch [1]. I went ahead and > tested this out on a Pi 4. Prior to this patch series, attempting to use > the hwrng gives: > > $ head -c 2 /dev/hwrng > head: /dev/hwrng: Input/output error > > After this series, the same command gives two random bytes. > > Changes in v2: > - specify the correct size for the region in the dts, refactor bcm283x rng > > --- > > Stefan Wahren (2): > dt-bindings: rng: add BCM2711 RNG compatible > hwrng: iproc-rng200: Add support for BCM2711 > > Stephen Brennan (1): > ARM: dts: bcm2711: Enable HWRNG support > > .../devicetree/bindings/rng/brcm,iproc-rng200.txt | 1 + > arch/arm/boot/dts/bcm2711.dtsi | 6 +++--- > arch/arm/boot/dts/bcm2835.dtsi | 1 + > arch/arm/boot/dts/bcm2836.dtsi | 1 + > arch/arm/boot/dts/bcm2837.dtsi | 1 + > arch/arm/boot/dts/bcm283x-common.dtsi | 11 +++++++++++ > arch/arm/boot/dts/bcm283x.dtsi | 6 ------ > drivers/char/hw_random/Kconfig | 2 +- > drivers/char/hw_random/iproc-rng200.c | 1 + > 9 files changed, 20 insertions(+), 10 deletions(-) > create mode 100644 arch/arm/boot/dts/bcm283x-common.dtsi Patches 1-2 applied. Thanks. -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt