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=-2.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 3872AC31E45 for ; Thu, 13 Jun 2019 16:50:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 045C02082C for ; Thu, 13 Jun 2019 16:50:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="F5wghJXV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404289AbfFMQue (ORCPT ); Thu, 13 Jun 2019 12:50:34 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:33534 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725780AbfFMEHU (ORCPT ); Thu, 13 Jun 2019 00:07:20 -0400 Received: by mail-pg1-f194.google.com with SMTP id k187so9629575pga.0 for ; Wed, 12 Jun 2019 21:07:19 -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=n29uyDPPBK7egYyDUR+aysMwNcE/QINJ0iF/ZuZPx80=; b=F5wghJXV7SMKXC9UGRyLMlm+HH/tNwdpxWoG3y3t/L5tC64i1UrDjkPdASW+/1eEM/ 33id3padmrJT8YrSec5Qkd0Qd8GTIuM+GQfblbourirrBmolMdNWA50G8zmdT8KHvRWj 0aLL2rQVL4wis+E+e+FTZyG7u90IttXmEUgJ8= 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=n29uyDPPBK7egYyDUR+aysMwNcE/QINJ0iF/ZuZPx80=; b=l1v1JjMGtH0IYpcdbMz43LQfgQfw6hrNrsvEWC6clx2tBlP2/jB0ubdiPUd3uMfqcD 1jIfgmpjoRizmfXGFcgxrmdg98SkMjEBRi0tzyLF7HTT0N5A5gw76S9Bmy5QijzYY9L3 R6ukiAhprR7TpbcnNK5apS0MTl3fBeBAYpl6XUSseV1MwOlaKzACGRgADFIWgW6QYFQg JjuuwJTUWS9iCxavUjxcGRAIvxVRREEGmB27EHDZ1M5Tsj6rhMEWUH3vPXcdrR+WsMLm r7QIoLpVXoi/izpbCywoG87vh3OyP/wgiIcYVWVFfxKpmS3mvP39rTnENYEyhN0Pm7tq IhjQ== X-Gm-Message-State: APjAAAUwW0FAAYorBYaspT80nM+gD1n59i+99SMHFQvCCfSanaGdFkFe 20700TefHQkr5Fii3OYM3Ewu7Q== X-Google-Smtp-Source: APXvYqyqFWkg2GEQ3OnDD7tik2joj+QzIoaT73yaw8afEjZ07HT1I0a0oyimnt6HBsbB/CndmNHMMQ== X-Received: by 2002:a17:90a:2488:: with SMTP id i8mr2684275pje.123.1560398839210; Wed, 12 Jun 2019 21:07:19 -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 a13sm956849pgh.6.2019.06.12.21.07.17 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 12 Jun 2019 21:07:18 -0700 (PDT) From: Pi-Hsun Shih Cc: Pi-Hsun Shih , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), Erin Lo , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC support), linux-kernel@vger.kernel.org (open list), linux-mediatek@lists.infradead.org (moderated list:ARM/Mediatek SoC support), linux-remoteproc@vger.kernel.org (open list:REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM), Nicolas Boichat Subject: [PATCH v11 0/5] Add support for mt8183 SCP. Date: Thu, 13 Jun 2019 12:06:47 +0800 Message-Id: <20190613040708.97488-1-pihsun@chromium.org> X-Mailer: git-send-email 2.22.0.rc2.383.gf4fbbf30c2-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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). This series (In particular, Patch 5) is based on https://patchwork.kernel.org/cover/10962385/. 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 | 396 ++++++++++ include/linux/platform_data/mtk_scp.h | 167 +++++ include/linux/rpmsg/mtk_rpmsg.h | 30 + 13 files changed, 1598 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 -- 2.22.0.rc2.383.gf4fbbf30c2-goog