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,UNPARSEABLE_RELAY,USER_AGENT_SANE_2 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 9D0FEC76188 for ; Mon, 22 Jul 2019 09:51:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C4742147A for ; Mon, 22 Jul 2019 09:51:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729510AbfGVJve (ORCPT ); Mon, 22 Jul 2019 05:51:34 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:58112 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729367AbfGVJuw (ORCPT ); Mon, 22 Jul 2019 05:50:52 -0400 X-UUID: c45950b4dc394bb492ec60abafe0491e-20190722 X-UUID: c45950b4dc394bb492ec60abafe0491e-20190722 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 208432879; Mon, 22 Jul 2019 17:50:44 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 22 Jul 2019 17:50:43 +0800 Received: from [172.21.77.33] (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 22 Jul 2019 17:50:42 +0800 Message-ID: <1563789042.14676.3.camel@mtkswgap22> Subject: Re: [PATCH v4 0/3] MediaTek Security random number generator support From: Neal Liu To: Matt Mackall , Rob Herring , Herbert Xu , Mark Rutland , Matthias Brugger , "Sean Wang" CC: Neal Liu , Crystal Guo =?UTF-8?Q?=28=E9=83=AD=E6=99=B6=29?= , "linux-crypto@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-mediatek@lists.infradead.org" , "linux-kernel@vger.kernel.org" , wsd_upstream Date: Mon, 22 Jul 2019 17:50:42 +0800 In-Reply-To: <1561361052-13072-1-git-send-email-neal.liu@mediatek.com> References: <1561361052-13072-1-git-send-email-neal.liu@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dear Matthias, Rob, Mark, Just gentle ping. Thanks On Mon, 2019-06-24 at 15:24 +0800, Neal Liu wrote: > These patch series introduce a generic rng driver for Trustzone > based kernel driver which would like to communicate with ATF > SIP services. > > Patch #1 initials SMC fid table for Mediatek SIP interfaces and > adds HWRNG related SMC call. > > Patch #2..3 adds mtk-sec-rng kernel driver for Trustzone based SoCs. > For MediaTek SoCs on ARMv8 with TrustZone enabled, peripherals like > entropy sources is not accessible from normal world (linux) and > rather accessible from secure world (ATF/TEE) only. This driver aims > to provide a generic interface to ATF rng service. > > > changes since v1: > - rename mt67xx-rng to mtk-sec-rng since all MediaTek ARMv8 SoCs > can reuse this driver. > - refine coding style and unnecessary check. > > changes since v2: > - remove unused comments. > - remove redundant variable. > > changes since v3: > - add dt-bindings for MediaTek rng with TrustZone enabled > - revise HWRNG SMC call fid > > > Neal Liu (3): > soc: mediatek: add SMC fid table for SIP interface > dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs > hwrng: add mtk-sec-rng driver > > .../devicetree/bindings/rng/mtk-sec-rng.txt | 10 ++ > drivers/char/hw_random/Kconfig | 16 +++ > drivers/char/hw_random/Makefile | 1 + > drivers/char/hw_random/mtk-sec-rng.c | 97 +++++++++++++++++++ > include/linux/soc/mediatek/mtk_sip_svc.h | 33 +++++++ > 5 files changed, 157 insertions(+) > create mode 100644 Documentation/devicetree/bindings/rng/mtk-sec-rng.txt > create mode 100644 drivers/char/hw_random/mtk-sec-rng.c > create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h >