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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,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 9CEDCC4363A for ; Thu, 15 Oct 2020 03:23:41 +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 298342222E for ; Thu, 15 Oct 2020 03:23:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="gv7FoZf5"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="tJhrLAB6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 298342222E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.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=5lJqqHHtpt9ReZLgA731vbhqIRD3T86X+D4Z0eDhccU=; b=gv7FoZf5LiHWXV15lq5hdt8EXU e627y2MslpX7lxHkZJGAgV84hwsoW0NUUBXi0hyk5UDigaZKtLXsd7JhJYDxmW4/gAHRQPOrW0dvR YtiqdmFHYvZXYcBpjEzWT0I+VdWjCcyMHtNB6jopmBK0KKGUQqlUNLIPs/wiUUD4UlsH9WXuWH0NS HtaZjDVBDZPoZaMfp93UVzU/r0aqBRral7GbHKnntyQdcL5OPS2Z9bbhrMZWp7LfxRXsQYeB8kI3r hxCuzNJyb15PjOPLw2mQwjrj08tDX1IbNy3w6nNH5Vv7FSyzGda6h/Zl027626OPyeVs5Kz9MxnrT kWGsQ0lA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kStrY-0004uo-Gn; Thu, 15 Oct 2020 03:23:32 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kStrU-0004ti-NJ; Thu, 15 Oct 2020 03:23:29 +0000 X-UUID: 5f176c17fd274da3ab7419d3988adb91-20201014 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=vt87zy5BJM1AmjZx6qAP3QE6Ib1rAbIpP0es8xsUK4Y=; b=tJhrLAB62qidQrVMKhkT6wzdSrfoVV5Fah16+Jkm/OithWi+kzNCI0A/eq1iO23Y1ISmzTpYJ5V8bipbTM5vZcjehknDEWnbM+YVKldpUuZ6hZtyDJ9eB4TAxN5XSS93Iz2VpePp3+owPvLkyafs0sNvsjFYyt56m7uGvA/ahkE=; X-UUID: 5f176c17fd274da3ab7419d3988adb91-20201014 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1880908448; Wed, 14 Oct 2020 19:23:24 -0800 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 14 Oct 2020 20:20:47 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 15 Oct 2020 11:20:46 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 15 Oct 2020 11:20:40 +0800 From: Neal Liu To: Rob Herring , Matthias Brugger , Chun-Kuang Hu Subject: Date: Thu, 15 Oct 2020 11:20:37 +0800 Message-ID: <1602732039-12179-1-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-20201014_232328_918383_1C87FFEC X-CRM114-Status: GOOD ( 12.95 ) X-BeenThere: linux-mediatek@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, lkml , linux-mediatek@lists.infradead.org, Neal Liu , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org These patch series introduce a MediaTek MT6779 devapc driver. MediaTek bus fabric provides TrustZone security support and data protection to prevent slaves from being accessed by unexpected masters. The security violation is logged and sent to the processor for further analysis or countermeasures. Any occurrence of security violation would raise an interrupt, and it will be handled by mtk-devapc driver. The violation information is printed in order to find the murderer. changes since v7: - fix VIO_MOD_TO_REG_IND calculation wrong problem. - revise parameter type of ISR. changes since v6: - remove unnecessary mask/unmask module irq during ISR. changes since v5: - remove redundant write reg operation. - use static variable of vio_dbgs instead. - add stop_devapc() if driver is removed. changes since v4: - refactor data structure. - merge two simple functions into one. - refactor register setting to prevent too many function call overhead. changes since v3: - revise violation handling flow to make it more easily to understand hardware behavior. - add more comments to understand how hardware works. changes since v2: - pass platform info through DT data. - remove unnecessary function. - remove slave_type because it always equals to 1 in current support SoC. - use vio_idx_num instread of list all devices' index. - add more comments to describe hardware behavior. changes since v1: - move SoC specific part to DT data. - remove unnecessary boundary check. - remove unnecessary data type declaration. - use read_poll_timeout() instread of for loop polling. - revise coding style elegantly. *** BLURB HERE *** Neal Liu (2): dt-bindings: devapc: add bindings for mtk-devapc soc: mediatek: add mt6779 devapc driver .../bindings/soc/mediatek/devapc.yaml | 58 ++++ drivers/soc/mediatek/Kconfig | 9 + drivers/soc/mediatek/Makefile | 1 + drivers/soc/mediatek/mtk-devapc.c | 308 ++++++++++++++++++ 4 files changed, 376 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/devapc.yaml create mode 100644 drivers/soc/mediatek/mtk-devapc.c -- 2.18.0 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek