From patchwork Wed Jul 15 15:25:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Horia Geanta X-Patchwork-Id: 11665791 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A829B138C for ; Wed, 15 Jul 2020 15:29:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8259F20663 for ; Wed, 15 Jul 2020 15:29:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="MOSy2F5Q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8259F20663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=hZm+8mKK+APDyg4TnjIetfsfeKTIsNHXPOyAADVicpc=; b=MOSy2F5Q8F1d4SUk7eMDcz619O ORJf5aNeMCo7huULTy+yHgUjuzUTcNc+NwRaO4iyGx94E2fr0L1ogJQCNEhqzR6mCpCNbvl2tX7QJ Mv5L/ciGiUtw90zV3XF6mlzS/Syn7SYkEF6Z4c87zr10WXZDhfp13e36tAduYJC6jrg75Wg2wEUZo NEW01FNrcKZm/LjIHCWfsHEOow7reZpg9NXvObb+QuXvER6Ek9XumK4nGMf321jzbAlc441q3bwaZ Xw3cqBK9Xr5lvHmdfyCOVigAWq5abFW2kYH3uS7RmckCZSiL/cqBPlhKVGHab6yGEF5L5WGOG0Vf6 gNE3zYzw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvjJa-0002y5-2F; Wed, 15 Jul 2020 15:27:22 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvjJW-0002uG-Hy for linux-arm-kernel@lists.infradead.org; Wed, 15 Jul 2020 15:27:19 +0000 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_Geant=C4=83?= To: Rob Herring , Shawn Guo , Sascha Hauer , Matt Mackall , Herbert Xu 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 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200715_112718_736990_65F7E5A4 X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.21 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Arnd Bergmann , Iuliana Prodan , Greg Kroah-Hartman , Marco Felsch , linux-kernel@vger.kernel.org, Franck Lenormand , NXP Linux Team , Pengutronix Kernel Team , Martin Kaiser , Silvano Di Ninno , Fabio Estevam , linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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(-)