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,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 74BD1C433E0 for ; Fri, 7 Aug 2020 02:35:44 +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 4E7D02177B for ; Fri, 7 Aug 2020 02:35:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="wHBVrHaB"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="PwNN2kYn"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="GF4dRF6y" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E7D02177B 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-arm-kernel-bounces+linux-arm-kernel=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=Nh3z+8cgQeIK5+zuFkBeJtCY5fE1oWY5kCbAcuj/xEY=; b=wHBVrHaBf6APtzr2rEacMvG7A8 RM/61yRB3bQLXaAqVCaGKAfxZ7Dy76WccP77X8PFDhE9nI0v6z2g/GqWruDRTW0DdgwClNkXr6z93 yhuyyMB3XA7J6uktSgj8OYNm/yrwt6SAjnYX6NFstiOcF2/LQR6aFB2irwFlXvj5WCSXvucFQBx3F vwQKTx1FCIgQ7wZLzWuLGpM1hAJesAWrtRlRQBNNfKck5u8z2I/8VYXFfYFIjPzUYr3rcWM+TV7/9 yCIkBfpYzPcidqWM+q3REuCJBdorItl89RTd0tc7hdw4jk9bumZkfZaog0MN3cZHmKUKE/lDvv49r gvOwxphA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k3sD7-0000aT-Fm; Fri, 07 Aug 2020 02:34:21 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k3sD3-0000ZF-EF; Fri, 07 Aug 2020 02:34:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To:Content-ID: Content-Description:In-Reply-To:References; bh=BJiDnyuYO7RUiy76gfERJoEHx1JqO2dDx+agAtDeSyY=; b=PwNN2kYnua3oUSTS37zvxcF333 lucW8Ljnpz2mc0uZBY+CLZqkCiySdijc8zLHUhrEdPmAO6mSnpsYfSCHaCqP+WM9sR5hSSc0DchcT /YgGrAGHZEok4ePDek050t0Vk/L5FNjRx+9xz+CHhETSovQPTUf+UJcCFwtOKhE+YhMbteBqTLfoJ gBzdM7U0ZUhD2Yqq6+xTBVPj5oNxwtIWiWQp1HVIawgwTlDB0c4tQhSXmFspLZrGqrfQfgzZM4OiI nVgXfe1YIBQ1gdn9Q5u2U8HCeaFXJY1Lvma03uPZZ+lHX4dHD113ZaCjqqPL5f+BRuPwI63oFZ5ox d6isJQAg==; Received: from mailgw02.mediatek.com ([216.200.240.185]) by casper.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k3sCz-0006bS-J3; Fri, 07 Aug 2020 02:34:16 +0000 X-UUID: 4f14ac5a6a1b49599d61edcbde8cd545-20200806 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=BJiDnyuYO7RUiy76gfERJoEHx1JqO2dDx+agAtDeSyY=; b=GF4dRF6yVi1cxkbAQomtcVYHbSFjy5RiLIdpGz6GpFI2ZvQOBM5Xq2Z5wxsbcKnm1zPJDiUHnx4gwWO6m79WAB271Uj4pIH1gWZePbR68LjzjJKv4vdm4WH84DQG+3mZ2T6t5b49IDbNDct62vitC8ICn3HFxQf6D1iZZF9t4Ms=; X-UUID: 4f14ac5a6a1b49599d61edcbde8cd545-20200806 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1487365780; Thu, 06 Aug 2020 18:32:33 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 6 Aug 2020 19:22:27 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 7 Aug 2020 10:22:29 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 7 Aug 2020 10:22:29 +0800 From: Neal Liu To: Rob Herring , Matthias Brugger Subject: [PATCH v5] Add MediaTek MT6779 devapc driver Date: Fri, 7 Aug 2020 10:22:26 +0800 Message-ID: <1596766948-29767-1-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-20200807_033414_223384_FC954FDD X-CRM114-Status: GOOD ( 14.99 ) 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, 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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=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 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 | 315 ++++++++++++++++++ 4 files changed, 383 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/devapc.yaml create mode 100644 drivers/soc/mediatek/mtk-devapc.c -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel