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=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 6EE3AC433E2 for ; Wed, 15 Jul 2020 15:27:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C63D206D5 for ; Wed, 15 Jul 2020 15:27:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbgGOP1U (ORCPT ); Wed, 15 Jul 2020 11:27:20 -0400 Received: from inva021.nxp.com ([92.121.34.21]:54262 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726332AbgGOP1R (ORCPT ); Wed, 15 Jul 2020 11:27:17 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 947F9200334; Wed, 15 Jul 2020 17:27:14 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 847A9200319; Wed, 15 Jul 2020 17:27:14 +0200 (CEST) Received: from fsr-ub1864-014.ea.freescale.net (fsr-ub1864-014.ea.freescale.net [10.171.95.219]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id C6229205C8; Wed, 15 Jul 2020 17:27:13 +0200 (CEST) From: =?UTF-8?q?Horia=20Geant=C4=83?= To: Rob Herring , Shawn Guo , Sascha Hauer , Matt Mackall , Herbert Xu Cc: Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Arnd Bergmann , Greg Kroah-Hartman , Martin Kaiser , Marco Felsch , Franck Lenormand , Iuliana Prodan , Silvano Di Ninno , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/5] hwrng: add support for i.MX6 rngb Date: Wed, 15 Jul 2020 18:25:59 +0300 Message-Id: <20200715152604.10407-1-horia.geanta@nxp.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for RNGB found in some i.MX6 SoCs (6SL, 6SLL, 6ULL, 6ULZ), based on RNGC driver (drivers/char/hw_random/imx-rngc.c). This driver claims support also for RNGB (besides RNGC), and is currently used only by i.MX25. Note: Several NXP SoC from QorIQ family (P1010, P1023, P4080, P3041, P5020) also have a RNGB, however it's part of the CAAM (Cryptograhic Accelerator and Assurance Module) crypto accelerator. In this case, RNGB is managed in the caam driver (drivers/crypto/caam/), since it's tightly related to the caam "job ring" interface, not to mention CAAM internally relying on RNGB as source of randomness. On the other hand, the i.MX6 SoCs with RNGB have a DCP (Data Co-Processor) crypto accelerator and this block and RNGB are independent. Changelog: v4 -remove unneeded compatible strings from the driver v3 -mention in the DT binding the compatibility with "fsl,imx25-rngb" -collected Reviewed-by v2 -update rngb DT binding with compatible strings for i.MX6 SoCs Horia Geantă (5): dt-bindings: rng: add RNGB compatibles for i.MX6 SoCs ARM: dts: imx6sl: fix rng node ARM: dts: imx6sll: add rng ARM: dts: imx6ull: add rng hwrng: imx-rngc: enable driver for i.MX6 Documentation/devicetree/bindings/rng/imx-rng.txt | 3 +++ arch/arm/boot/dts/imx6sl.dtsi | 2 ++ arch/arm/boot/dts/imx6sll.dtsi | 7 +++++++ arch/arm/boot/dts/imx6ull.dtsi | 7 +++++++ drivers/char/hw_random/Kconfig | 2 +- 5 files changed, 20 insertions(+), 1 deletion(-) -- 2.17.1