From patchwork Mon Jun 24 07:24:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neal Liu X-Patchwork-Id: 11012489 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E59836C5 for ; Mon, 24 Jun 2019 07:25:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C86FF28734 for ; Mon, 24 Jun 2019 07:25:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B873A28B49; Mon, 24 Jun 2019 07:25:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5254828734 for ; Mon, 24 Jun 2019 07:25:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=DHSl0HajrXFGnYmB2Wj8Fze9D3MJB0XDQvIjXeFkUkw=; b=aWNlvUcn70Z/B5 vqwTpDqQfQTgM8QOnP9+YHs0Sn+krNH36DwR9RnPs2goxWXvPAAZ+IOHA41+ZHnjZijuFT2IQBk1i e8ebOe+Qb9fhFJ6yuRK89p5IVUSSJg+v5SMPtMZOmde8BGk4kZpgywYN7dxzW6vQnHNbrDye0sK9v BaZxcRwco1pynOl4tkV2owvo0K5CwrVVa3w1WxuAnYi2NzPizqGiSzdt+7axKRRJBu34LQKqIrO9r MdxCHdTq4XpuWhmuVrXbFsXN662qdSEfoLilfjBDfcsVtRsnHBKSrdxuHlzSwVnBnvgrK5GolZV1F dKm7/Y0OBDmbvlJ+6/3w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hfJLj-000811-IR; Mon, 24 Jun 2019 07:25:11 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hfJLE-0006s2-E5; Mon, 24 Jun 2019 07:24:41 +0000 X-UUID: 7a5e7aaf623e45448b6bb6701431ccbb-20190623 X-UUID: 7a5e7aaf623e45448b6bb6701431ccbb-20190623 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1818909059; Sun, 23 Jun 2019 23:24:31 -0800 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 24 Jun 2019 00:24:30 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 24 Jun 2019 15:24:28 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 24 Jun 2019 15:24:28 +0800 From: Neal Liu To: Matt Mackall , Herbert Xu , Rob Herring , Mark Rutland , Matthias Brugger , Sean Wang Subject: [PATCH v4 0/3] MediaTek Security random number generator support Date: Mon, 24 Jun 2019 15:24:09 +0800 Message-ID: <1561361052-13072-1-git-send-email-neal.liu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190624_002440_487535_3ED8B98F X-CRM114-Status: UNSURE ( 8.70 ) X-CRM114-Notice: Please train this message. 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, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Crystal Guo , linux-crypto@vger.kernel.org, Neal Liu , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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