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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78131C433EF for ; Tue, 11 Jan 2022 15:57:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243870AbiAKP5g (ORCPT ); Tue, 11 Jan 2022 10:57:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243649AbiAKP5g (ORCPT ); Tue, 11 Jan 2022 10:57:36 -0500 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9986C06173F for ; Tue, 11 Jan 2022 07:57:35 -0800 (PST) Received: by mail-lf1-x12a.google.com with SMTP id s30so30128307lfo.7 for ; Tue, 11 Jan 2022 07:57:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wirenboard-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=0nTUgBUzWqYITQnAEDWeHOtQPiYS2wv61d5KwBi3uYs=; b=t84dYxCCv052E4gw3UFG/bbNlvC8YH8gRdSgmtYiwENmKguYf09md0nJys7744EKcC Gb18/zBvF7TLIj8+vZBwHGt+hft0CIAnff82KzRuskCyFc8yQOJw6Nu6hcXE99ke0sAm 1tAe+v9OsXmA80J5pSeGvWogw5cMcB/vs5exZWVIINMYL8DeWujfwdVFf+RIm+suxIoS 6knSFycPXx9hDxLxMhOv0ymGkjJ7nd3loxPGiSTqrx6JuowFH4HxehN5hG3v84ncX3+b 6zqraG1VyL0SdOUHNRAtcoEqagW5t7uEvEQsqRz3VpCoWQLqQqc8XIBNZoyYoCgRAsd7 DQCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=0nTUgBUzWqYITQnAEDWeHOtQPiYS2wv61d5KwBi3uYs=; b=Ka58Sbh8JcBb00WqnhvqdTZPzVWB6F8wLVBIAYO4O3addMD9GOpTOrrWYhSawCPPx9 liexatsQbyBE6P7yT6w0odOKfh4rrC9AXhmEu3aLuNETr5T2s/JRmJp6E+fgDuElGynQ Bqe3d9ng/IuMRYFDztjAlUYh1fcChiWDgO1AWlS3sOr/3hr23UauiAcNmTwT1ZnPy4cw LlrwpCNaWWQFkV1bTBzra89V9T66l5d9ua0kSajc4G5GsfyvFMqfriH7HJUvUczc4w4v ibKPMESUeoX+CcjqWyR3JCiqJV2fWk0fOD8JzymZFOA1C5h5y7Jdobpz4epS1UnzLARk GiBw== X-Gm-Message-State: AOAM531gjK0sk2t9o3q78ZBgYPy1d+Y/eSKfmam6NvnI+uaSUHlMSHGw NX2EvxJEaGzgYEBHR/rasrAa6A== X-Google-Smtp-Source: ABdhPJxDkpX6B9o6w77LG43w7VqtyI0FEwgWWHHETUr5EU+pxPzv92RWWzfNd7pnF/3igejqxXgdoQ== X-Received: by 2002:a05:651c:160c:: with SMTP id f12mr913606ljq.462.1641916654069; Tue, 11 Jan 2022 07:57:34 -0800 (PST) Received: from boger-laptop.lan (81.5.110.253.dhcp.mipt-telecom.ru. [81.5.110.253]) by smtp.gmail.com with ESMTPSA id y7sm1370706lfa.92.2022.01.11.07.57.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Jan 2022 07:57:33 -0800 (PST) From: Evgeny Boger To: Maxime Ripard , Chen-Yu Tsai , linux-arm-kernel@lists.infradead.org Cc: Evgeny Boger , devicetree@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-can@vger.kernel.org, Wolfgang Grandegger , Marc Kleine-Budde , "David S . Miller" , Jeroen Hofstee , Gerhard Bertelsmann Subject: [PATCH v2 0/3] add support for Allwinner R40 CAN controller Date: Tue, 11 Jan 2022 18:57:06 +0300 Message-Id: <20220111155709.56501-1-boger@wirenboard.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org Allwinner R40 (also known as A40i, T3, V40) has a CAN controller. The controller is the same as in earlier A10 and A20 SoCs, but needs reset line to be deasserted before use. This patch series introduce new compatible for R40 CAN controller, add support for reset line in driver and add the corresponding nodes to the SoC .dtsi file. The CAN IP was documented in early V40 datasheet [1]. It also fully supported in vendor BSP. However, CAN description was removed from more recent A40i, T3 and R40 user manuals and datasheets. Anyway, we verified that the CAN controller is indeed there and tested it extensively on A40i-based custom hardware [2]. [1] https://linux-sunxi.org/File:Allwinner_V40_Datasheet_V1.0.pdf [2] https://wirenboard.com/en/product/wiren-board-7/ Changes in v2: - sort pinmux nodes alphabetically and mark them with omit-if-no-ref Evgeny Boger (3): dt-bindings: net: can: add support for Allwinner R40 CAN controller can: sun4i_can: add support for R40 CAN controller ARM: dts: sun8i: r40: add node for CAN controller .../net/can/allwinner,sun4i-a10-can.yaml | 24 ++++++++ arch/arm/boot/dts/sun8i-r40.dtsi | 21 +++++++ drivers/net/can/sun4i_can.c | 61 ++++++++++++++++++- 3 files changed, 105 insertions(+), 1 deletion(-) -- 2.25.1