From patchwork Tue Jul 2 06:05:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pi-Hsun Shih X-Patchwork-Id: 11027249 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 A965E14C0 for ; Tue, 2 Jul 2019 06:06:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8EA6528837 for ; Tue, 2 Jul 2019 06:06:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8262328892; Tue, 2 Jul 2019 06:06:11 +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 autolearn=unavailable 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 8C36928837 for ; Tue, 2 Jul 2019 06:06:10 +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=ZjUAgmpI/FOhqZyMGf920ybyKR0zyRA4qYmsjgKnUpY=; b=cyaIHFPUUMOgVo bEftCyWmTuqMEfsbYVLPuLOQsTp/aSegWOkUieVCIFoeApUsND9nvR+Togb2A9ZSbO3FcX3s5LoXi JGnstg/6Yr1ST4vR7Q+il5fUKO0RYq+h/2FvUb2tas9botZSF/qMdmRH6q/e7RT4OPZ1kWWIwSApM cdF43nHkO0EOvZY6YRVgwu5B2BCiIoaad5rgr5YZbzuN1dpfm7NeK+azFtfmRNE2IQRntMRW1HmUX inlqtEFjBHMOjZXJxD2gRIgyg0BFlUNstfkRZwgwip3qJXPwFTnv2g6oVFWnUMH0UjoUyHQtlR+lZ G2ozkYSmUiUGUOL7eC5g==; 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 1hiBvY-0006Vf-8e; Tue, 02 Jul 2019 06:06:04 +0000 Received: from mail-pg1-x543.google.com ([2607:f8b0:4864:20::543]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hiBvU-0006U7-4t for linux-arm-kernel@lists.infradead.org; Tue, 02 Jul 2019 06:06:01 +0000 Received: by mail-pg1-x543.google.com with SMTP id c13so7139939pgg.3 for ; Mon, 01 Jul 2019 23:05:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=bEIwKMmTJMQNc6cChPg2bTrfjiNFCNKp7eNnSy3mZrU=; b=E6o0HywKABOOXkjDGPU/C7z19YwetOJjfUTuePoL5nFksbWw9cY2JNeVWxDvGfGMwb 2i7CGkrQ7DKdpdo0HDFiA75i+9wha/Z7GZy3UlCbqRFYkpX0a3TgVRzX/DTyL/BFUHI7 YdMhtY3b2Vs61f0VzIJZ1E9imUTLf/SFTUj9E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=bEIwKMmTJMQNc6cChPg2bTrfjiNFCNKp7eNnSy3mZrU=; b=ulDn+8FDfRP1mWjGPWwSJYVQ/ZV2iSsVGPrN4jKl9eFQJLnIy0NjmYRWXU+Nwr+sOt AN/TJP1qCXqs63riEC5cV23beQj4TbT4cYX+SAIxtF8HA8CEtG+SRqbN9Jd5e55geQTv H/rPvhMjbFGuKGeBjIWX+lj3b5PPbJVATcFvwZftowng1TPqHONfo9rBQOI0ddrImL54 2kv9mSAKjiqJQ2Nt7stRHVqbROQPWHe8x7x+XZH6yHnqWF8oeERn3NDdFWBNjB32tU2p cDMuG5WScoK1+BQeaSKcw6lOCDFA4QAxV5oDEVOys//wLpmoylcnTP7DBCEadOVML+Of LmkA== X-Gm-Message-State: APjAAAWcIxQdiXU3sIKQufLlahDjcq46ZO+tnXvcJqSaROpnfkjHBKJP s6Bx+qlNLw3L77z7QtIWxNQV/A== X-Google-Smtp-Source: APXvYqwLqQfcXef68NqInXgd1aLZas8KCW/D9JJ863T0uE5Jsuhrkdo/pYtJDjeqxjDQdKjKePaOvA== X-Received: by 2002:a17:90a:360c:: with SMTP id s12mr3705655pjb.30.1562047558906; Mon, 01 Jul 2019 23:05:58 -0700 (PDT) Received: from pihsun-z840.tpe.corp.google.com ([2401:fa00:1:10:7889:7a43:f899:134c]) by smtp.googlemail.com with ESMTPSA id d1sm10284013pgd.50.2019.07.01.23.05.56 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 01 Jul 2019 23:05:58 -0700 (PDT) From: Pi-Hsun Shih To: Subject: [PATCH v12 0/5] Add support for mt8183 SCP. Date: Tue, 2 Jul 2019 14:05:23 +0800 Message-Id: <20190702060546.222934-1-pihsun@chromium.org> X-Mailer: git-send-email 2.22.0.410.gd8fdbe21b5-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190701_230600_218240_5A735F53 X-CRM114-Status: GOOD ( 16.35 ) 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: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Nicolas Boichat , Erin Lo , "open list:REMOTE PROCESSOR REMOTEPROC SUBSYSTEM" , open list , "moderated list:ARM/Mediatek SoC support" , Pi-Hsun Shih , "moderated list:ARM/Mediatek SoC support" 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 Add support for controlling and communicating with mt8183's system control processor (SCP), using the remoteproc & rpmsg framework. And also add a cros_ec driver for CrOS EC host command over rpmsg. The overall structure of the series is: * remoteproc/mtk_scp.c: Control the start / stop of SCP (Patch 2, 3). * remoteproc/mtk_scp_ipi.c: Communicates to SCP using inter-processor interrupt (IPI) and shared memory (Patch 2, 3). * rpmsg/mtk_rpmsg.c: Wrapper to wrap the IPI communication into a rpmsg device. Supports name service for SCP firmware to announce channels (Patch 4). * add scp dts node to mt8183 platform (Patch 5). Changes from v11: - Fixed a bug that mtk_rpmsg_endpoint is not properly cleaned up if rproc_boot fails. - Add missing documentation in comment. Changes from v10: - Drop applied cros_ec_rpmsg patches. - Add clock reset before loading SCP firmware. - Fix some type mismatch warnings when printing debug messages. Changes from v9: - Remove reserve-memory-vpu_share node. - Remove change to cros_ec_commands.h (That is already in https://lore.kernel.org/lkml/20190518063949.GY4319@dell/T/) Changes from v8: - Rebased onto https://patchwork.kernel.org/cover/10962385/. - Drop merged cros_ec_rpmsg patch, and add scp dts node patch. - Add more reserved memory region. Changes from v7: - Rebase onto https://lore.kernel.org/patchwork/patch/1059196/. - Fix clock enable/disable timing for SCP driver. - Add more SCP IPI ID. Changes from v6: - Decouple mtk_rpmsg from mtk_scp. - Change data of EC response to be aligned to 4 bytes. Changes from v5: - Add device tree binding document for cros_ec_rpmsg. - Better document in comments for cros_ec_rpmsg. - Remove dependency on CONFIG_ in binding tree document. Changes from v4: - Merge patch 6 (Load ELF firmware) into patch 2, so the driver loads ELF firmware by default, and no longer accept plain binary. - rpmsg_device listed in device tree (as a child of the SCP node) would have it's device tree node mapped to the rpmsg_device, so the rpmsg driver can use the properties on device tree. Changes from v3: - Make writing to SCP SRAM aligned. - Add a new patch (Patch 6) to load ELF instead of bin firmware. - Add host event support for EC driver. - Fix some bugs found in testing (missing spin_lock_init, rproc_subdev_unprepare to rproc_subdev_stop). - Fix some coding style issue found by checkpatch.pl. Changes from v2: - Fold patch 3 into patch 2 in v2. - Move IPI id around to support cross-testing for old and new firmware. - Finish more TODO items. Changes from v1: - Extract functions and rename variables in mtk_scp.c. - Do cleanup properly in mtk_rpmsg.c, which also removes the problem of short-lived work items. - Code format fix based on feedback for cros_ec_rpmsg.c. - Extract feature detection for SCP into separate patch (Patch 6). Eddie Huang (1): arm64: dts: mt8183: add scp node Erin Lo (3): dt-bindings: Add a binding for Mediatek SCP remoteproc/mediatek: add SCP support for mt8183 remoteproc: mt8183: add reserved memory manager API Pi-Hsun Shih (1): rpmsg: add rpmsg support for mt8183 SCP. .../bindings/remoteproc/mtk,scp.txt | 36 + arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 12 + drivers/remoteproc/Kconfig | 10 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/mtk_common.h | 79 ++ drivers/remoteproc/mtk_scp.c | 683 ++++++++++++++++++ drivers/remoteproc/mtk_scp_ipi.c | 163 +++++ drivers/rpmsg/Kconfig | 9 + drivers/rpmsg/Makefile | 1 + drivers/rpmsg/mtk_rpmsg.c | 414 +++++++++++ include/linux/platform_data/mtk_scp.h | 167 +++++ include/linux/rpmsg/mtk_rpmsg.h | 38 + 13 files changed, 1624 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,scp.txt create mode 100644 drivers/remoteproc/mtk_common.h create mode 100644 drivers/remoteproc/mtk_scp.c create mode 100644 drivers/remoteproc/mtk_scp_ipi.c create mode 100644 drivers/rpmsg/mtk_rpmsg.c create mode 100644 include/linux/platform_data/mtk_scp.h create mode 100644 include/linux/rpmsg/mtk_rpmsg.h