From patchwork Wed Feb 3 12:58:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 12064277 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=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 22768C433E0 for ; Wed, 3 Feb 2021 12:59:30 +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 99C3364E30 for ; Wed, 3 Feb 2021 12:59:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99C3364E30 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=wdc.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=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=YLy9Bb3N9OzAECJEJrDpZNfK4RZ56whCejA6qpyah/U=; b=KqllXHY0gCNGogY4MhJQyq7X8e 0Ur78NLlzIANW7EC5VQtL2VfhJK/26wGI+McW+TlbumYYWG3ppsKpMeh0n+k1mEYo4G9nofEmt6fB 9Gb8dhSIz4y24gNMXib7nJljVzogReKuO2ZfNJkHE4QT50yTTF2c5BiWOw2nfbNx6hhsQcZIl3RBT 0hUR0H2x/owTMFFmU+mv5hovUFSl9znAYUVDObJMvjgUnYTWa+o7Gl7XdTXSo/31xJ87w5dijluOp Gx6AP9d6vx779MwgdEt2LGmMOf4fs6Zt2E/rCgjeXAp/bHZi0wKRe96nTrfIjNfNwmK4gfXlzU1ww h0lEXAxg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7Hkf-0005hf-Lj; Wed, 03 Feb 2021 12:59:21 +0000 Received: from esa4.hgst.iphmx.com ([216.71.154.42]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7Hkd-0005gQ-A7 for linux-riscv@lists.infradead.org; Wed, 03 Feb 2021 12:59:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1612357159; x=1643893159; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=nP/SZcamfJNu2a2ovME9HcnOmHs2K4f7bANIbpuf9yM=; b=gYxNRWC3Z7gH7YCrms4R5vig+lWVUS7iRFa/xg0rdgcXYel1DwgEMQ8S mQfKr0rD2MW1XlUrnqC6xjAoh40jCK0ytNhQcYgKgf03Qkr9JsuyseUqg 7z8TZAXDw1U0jiVFKuzjO34elIwtL6mFG8xWDg3Z9wPYa7RmdKqZjQIyv ruNh+7wReHzdHPUXBxXQkh0RWH/CgSwsBJzch7MH88Lm6YQCXSDO3x2cl ukZkgHixXGsLzXzgmn8eWv6LU+3rhvWtvJzlXIeLMvJw1/QHq4vW9Mx0Y OhAMSxZLK6uFt4SrXBhuUQ9oBnJDg8z0YCle0ZxOqoZ3EOg29scNMXa/1 g==; IronPort-SDR: xUShDon8ApyvbCBjl2z7Er99iS4cwT6nfFN66/D/rbxiwhJ23UOsTuPAgNBKe3luLVE71FnkGA F8ieFMkW8RROLcKLz1/SvfTDnMUjS/1noxwQbz2TaVm6JQIrytN+gX1+wFgj2vJg9flm7I06hn u4m85BoT+Q2153hbcVd6njQPjySsxoD9jr4GX22tblIobQC5CcYxkhnd6QJabvUn+u9zMlNJMV FdSf6c42a4r4vv+x6dnAA2Cv2E54hi0+RbnhWP4N1Pre0j5CXLUMLhHEW4DvijqhpKRA2iKnix pkA= X-IronPort-AV: E=Sophos;i="5.79,398,1602518400"; d="scan'208";a="159019468" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 03 Feb 2021 20:59:17 +0800 IronPort-SDR: xxlfgdPYPklFXvURJ1J31LY0Zw0xCAw664A0Sj3gCiDHhFc+lABY5GEApM4o65Xpad1/PBxU71 dkhstg/B/+2yytctBAqbyechFi42URagdy0XdsjZPIJ1GTFmoEAYntFfErfSc9nFeyIvyznFq8 skkS21Xjt1Tsgv1f3RrNTbCH2C92M6az4VVCMUa9W0t8f30rqCaarhAwVjWqu/uJujNUQ8cVoN va030p8BaIo9i2fiLjJRatdgbS96EwRNvEsFjZoRwfRFSe5M3lYg9DboqHVM5I/WT4fuhsGGVA 8GCvFczXLYx8ar141MQ1kM9p Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2021 04:41:21 -0800 IronPort-SDR: ufHtTi+avaYC6xcTTHSsJrTmUxMNfQo9YpH/VV32ZRbNG2AGTLNULJScjrVYfvpJxT8xc9K2p/ ZsUoh9Lu48n2+f1cnC2wQ+q0TMLuoNdOnwzomOky/dxHwHBZYVLzkccuOihOR/ceqWlBNFZvy8 zjrKUM6K/gr+qnUAltbtvsVZZxkDrYUztX8hT+z0hQDm2DKaF2roE7deIxs3hngbcajQi9uMxW 27z4q2KNMg2UFa8HX+F4zOo1rKm2lCPc2lleGgGPawqWUaP25erwN3x2BqpsYMdRcCyl1mrpFl lc8= WDCIronportException: Internal Received: from wdapacbjl0003.my.asia.wdc.com (HELO twashi.fujisawa.hgst.com) ([10.84.71.58]) by uls-op-cesaip01.wdc.com with ESMTP; 03 Feb 2021 04:59:16 -0800 From: Damien Le Moal To: Palmer Dabbelt , linux-riscv@lists.infradead.org Subject: [PATCH v15 00/16] RISC-V Kendryte K210 support improvements Date: Wed, 3 Feb 2021 21:58:57 +0900 Message-Id: <20210203125913.390949-1-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210203_075919_491900_C5C525C6 X-CRM114-Status: GOOD ( 24.24 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Atish Patra , Anup Patel , Sean Anderson Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This series of patches improves support for boards based on the Canaan Kendryte K210 RISC-V dual core SoC. Minimal support for this SoC is already included in the kernel. These patches complete it, enabling support for most peripherals present on the SoC as well as introducing device trees for the various K210 boards available on the market today from SiPeed and Kendryte. The patches here are the remaining patches not yet applied. Patch 1 adds the SoC clock driver. Patches 2 to 8 add and update device tree bindings documentation to document the K210 device tree files. In particular, patch 2 and 3 define compatible strings used for the SoC CPU and for the K210 based boards supported. Patches 9 to 14 update the existing K210 base device tree and add new device tree files for several K210 based boards: MAIX Bit, MAIXDUINO, MAIX Dock and MAIX Go boards from SiPeed and the KD233 development board from Canaan. Finally the last two patches updates the k210 nommu defconfig to include the newly implemented drivers and provide a new default configuration file enabling SD card support. A lot of the work on the device tree and on the K210 drivers come from the work by Sean Anderson for the U-Boot project support of the K210 SoC. Sean also helped with debugging many aspects of the K210 support. A tree with all patches applied is available here: https://github.com/damien-lemoal/linux, k210-sysctl-v28 branch. A demonstration of this series used on a SiPeed MAIX Dock board together with an I2C servo controller can be seen here: https://damien-lemoal.github.io/linux-robot-arm/#example This tree was used to build userspace busybox environment image that is then copied onto an SD card formatted with ext2: https://github.com/damien-lemoal/buildroot Of note is that running this userspace environment requires a revert of commit 2217b982624680d19a80ebb4600d05c8586c4f96 introduced during the 5.9 development cycle. Without this revert, execution of the init process fails. A problem with the riscv port of elf2flt is suspected but not confirmed. I am now starting to investigate this problem. Reviews and comments are as always much welcome. Changes from v14: * Fixed typo in patch 4 * Added reviewed-by tags Changes from v13: * Rebased on rc6 * Removed FPIOA driver patch as it is already queued. Changes from v12: * Addressed Rab's comments: keep SoC specific compatible string for DT nodes reusing existing IP blocks (e.g. PLIC and CLINT). * Addressed dt-bindings schema file check warnings. Changes from v11: * Addressed Stephen's comment on the clock driver * Fixed and added device tree bindings yaml files and fixed the device tree files to fix all warnings generated by make dtbs_check * Rebased on riscv tree fixes + latest riscv for-next branches. Changes from v10: * Rebased on riscv tree fixes+for-next branches. Patches already applied to these branches were removed from this series. * Fixed the clock driver and pinctrl driver patch titles to indicate the correct target sub-components. * Applied reviewed-by tags from Anup. Changes from v9: * Added patch 6 to avoid DTS compilation errors after patch 9 is applied and until patch 16 is applied. Changes from v8: * Addressed Rob's comments on the sysctl driver bindings documentation * Fixed a typo in the fpios driver bindings documentation Changes from v7: * Removed the __init annotation for the drivers reset, pinctrl and sysctl drivers probe functions as suggested by Geert. Also removed the __refdata annotation for the struct platform_driver variables of these drivers. Changes from v6: * Annotate struct platform_driver variables with __refdata to avoid section mismatch compilation errors * Add empty sentinel entry to of_device_id tables of the sysctl, reset and pinctrl drivers. Changes from v5: * Addressed Philipp's comment on the reset controller driver * Added patch 6 to reduce the size of the clock driver patch (now patch 12). Changes from v4: * Simplified reset controller driver using of_xlate callback as suggested by Philipp * Fixed compilation error when using other configs than one of the nommu_k210 defconfigs. * Addressed most clock driver comments from Stephen. * Removed CONFIG_GPIO_SYSFS from defconfigs * Rebased on 5.10-rc7 Changes from V3: * Add one entry per driver in MAINTAINERS file Changes from V2: * Add MAINTAINERS file entry for the SoC support, listing myself as maintainer. * Removed use of postcore_initcall() for declaring the drivers, using the regular builtin_platform_driver() instead. * Fixed fpio pinctrl driver bindings documentation as commented by Geert: removed input-schmitt and added input-schmitt-disable, fixed typo and added input-disable and output-disable. * Fixed device tree to have cs-gpios active low, as per the default, as active high necessity was an artifact of the gpio level double inversion bug fixed recently. * Removed CONFIG_VT from defconfigs to reduce the kernel image size as suggested by Geert. Changes from v1: * Improved DT bindings documentation * SPI and GPIO patches removed from this series (and being processed directly through the relevant subsystems directly) * Improved device trees * Various cleanup and improvments of the drivers Damien Le Moal (16): clk: Add RISC-V Canaan Kendryte K210 clock driver dt-bindings: add Canaan boards compatible strings dt-bindings: update risc-v cpu properties dt-bindings: update sifive plic compatible string dt-bindings: update sifive clint compatible string dt-bindings: update sifive uart compatible string dt-bindings: fix sifive gpio properties dt-bindings: add resets property to dw-apb-timer riscv: Update Canaan Kendryte K210 device tree riscv: Add SiPeed MAIX BiT board device tree riscv: Add SiPeed MAIX DOCK board device tree riscv: Add SiPeed MAIX GO board device tree riscv: Add SiPeed MAIXDUINO board device tree riscv: Add Kendryte KD233 board device tree riscv: Update Canaan Kendryte K210 defconfig riscv: Add Canaan Kendryte K210 SD card defconfig .../devicetree/bindings/gpio/sifive,gpio.yaml | 21 +- .../sifive,plic-1.0.0.yaml | 20 +- .../devicetree/bindings/riscv/canaan.yaml | 47 + .../devicetree/bindings/riscv/cpus.yaml | 2 + .../bindings/serial/sifive-serial.yaml | 1 + .../bindings/timer/sifive,clint.yaml | 19 +- .../bindings/timer/snps,dw-apb-timer.yaml | 3 + MAINTAINERS | 1 + arch/riscv/Kconfig.socs | 2 +- arch/riscv/boot/dts/canaan/canaan_kd233.dts | 177 +++ arch/riscv/boot/dts/canaan/k210.dts | 23 - arch/riscv/boot/dts/canaan/k210.dtsi | 535 ++++++++- arch/riscv/boot/dts/canaan/k210_generic.dts | 46 + .../riscv/boot/dts/canaan/sipeed_maix_bit.dts | 234 ++++ .../boot/dts/canaan/sipeed_maix_dock.dts | 236 ++++ arch/riscv/boot/dts/canaan/sipeed_maix_go.dts | 244 ++++ .../boot/dts/canaan/sipeed_maixduino.dts | 209 ++++ arch/riscv/configs/nommu_k210_defconfig | 44 +- .../riscv/configs/nommu_k210_sdcard_defconfig | 92 ++ drivers/clk/Kconfig | 8 + drivers/clk/Makefile | 1 + drivers/clk/clk-k210.c | 1012 +++++++++++++++++ drivers/soc/canaan/Kconfig | 18 +- drivers/soc/canaan/Makefile | 2 +- drivers/soc/canaan/k210-sysctl.c | 205 +--- include/dt-bindings/clock/k210-clk.h | 1 - include/soc/canaan/k210-sysctl.h | 2 + 27 files changed, 2950 insertions(+), 255 deletions(-) create mode 100644 Documentation/devicetree/bindings/riscv/canaan.yaml create mode 100644 arch/riscv/boot/dts/canaan/canaan_kd233.dts delete mode 100644 arch/riscv/boot/dts/canaan/k210.dts create mode 100644 arch/riscv/boot/dts/canaan/k210_generic.dts create mode 100644 arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts create mode 100644 arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts create mode 100644 arch/riscv/boot/dts/canaan/sipeed_maix_go.dts create mode 100644 arch/riscv/boot/dts/canaan/sipeed_maixduino.dts create mode 100644 arch/riscv/configs/nommu_k210_sdcard_defconfig create mode 100644 drivers/clk/clk-k210.c