From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f44.google.com (mail-lf1-f44.google.com [209.85.167.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B6A72C9C for ; Tue, 11 Jan 2022 15:57:35 +0000 (UTC) Received: by mail-lf1-f44.google.com with SMTP id x7so57902410lfu.8 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=FWB3QWf4tNw/0dzYHV81YzboWeayqPYF3YS6xdAXOo6nGZ+TOvjinOSuQDKnO8as2q EMD2OaLP4Lmvx2N8IfOhHV1z34ovk3ug/fqHd8UzMQBIEPVpBeyNYhNYQ7WpdmS261la NxDeXju5/OBlM5Qyxgi67QszYuN7nTrSQPVwYTqBzAX2+/ZR/1DRbDDdieouofCjf+ag X5r9nTxIF+Ud58pKhYFF6LUyJP9Twn7sJ7HjEoCdHW5ORuT7DJEdTQujBdPyWQ5CorDW ZlBf7mmnmM2QohQMGxbm1ZKfRyZrcdwj4k0djCtOI84DLG0b2cYXjWw9bPJQtqDwWU4P GUVQ== X-Gm-Message-State: AOAM533+lf5fBvEs3j92Za+z73SBYPMtHh46JzyQ5Fqi+XCHX0aqN5zB W9vcr+qBfWmVH8R9AGX2Rn9mxg== 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 Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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