From patchwork Tue Jun 18 08:37:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Wang X-Patchwork-Id: 13701966 Received: from mail-oa1-f52.google.com (mail-oa1-f52.google.com [209.85.160.52]) (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 D1E8D1AD9E8; Tue, 18 Jun 2024 08:37:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718699857; cv=none; b=rpwp3t3834NrJy25zcjo4eOqI41dy8GCeicd6h+gyDTtJZnfYRBeH/4LO60PMQyrFzGciQTBM2Lx17l3zzXHUogQaVCzjIO4yLSet+slBirFtm0vFTITr3LqEfGGhzfZyPeh52GRZePVa11Ligqs8RpXd9KYMjV4koo9t0JRbag= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718699857; c=relaxed/simple; bh=ofhnaPVNg2qs87WnUKL3NVwbpwdHWn2ssq1pcOARm/Q=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Oegu+14pJRJUHqQwrHGqay11zcozZW3AwGOdEjcYQIrIFND2PimYv6Hr82I3t0ttGvt+rpcOnb1gPYqorOjx4Ut9IjajjWCoRYSE1WDvmXq+yzujajjwKG9h4P4X/3IkNZDuNFZTT0D0MS0e/eZLxzvf+QshcO8JVa+whhZveHs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=WWAUSi5T; arc=none smtp.client-ip=209.85.160.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WWAUSi5T" Received: by mail-oa1-f52.google.com with SMTP id 586e51a60fabf-254871388d3so2675903fac.1; Tue, 18 Jun 2024 01:37:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718699855; x=1719304655; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=JFsReauRW7BnbGOq0QDl+qJ280PvXf5SBObURVpdknI=; b=WWAUSi5TuJ6EzUwt37PfkTqG4MhbrwpqMkxw/xt+B3iV2V7Nu0IIPzk844PdYStLuc 0otkoraoCOz0e2Wd1K6LiQhzEVpXxRRPlInjfOKO5egrXf3OG/WZ6y4ZSH89FvxYiAh6 YY5KV2jZr9SHX/LN0gl+aJpKsy4dKTyv1mbzBqz+w0TL15avupUndF02TXphPhTb8G1P 6N5f8piVf59abf6sh0r7pDSzVnE878cRNdp9ntD6/Wze0TmkO7rCVCW3L9/DqVjlxCUa YIbZ+hMpE2cVHHISc2JNrtL4GaKBgAbmVAEqRPbWQWyUnPdEwzC3ptvBWQICCt7uohfD 5uiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718699855; x=1719304655; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=JFsReauRW7BnbGOq0QDl+qJ280PvXf5SBObURVpdknI=; b=vFxjnFxt3yrsSoci+J0PnXu7VK4ME5EbzDWG9wSELcdml4KfxX1zmQi8L/fMSGRqdG 7MOux4Oe4eFo5pbiOU330Erxa+XAlEBn+9uKXbq9NCS8AR67upf2XgvYiuK2EkeJGe8G z4G23tv036hm6gRfXB1Y9LfRsVsLyzwZAZr29oLEifBRtt+73gRnu+6UAXDyiZhhLSbp nr4azSKTk0HjLMkm9htM88sIF2wktR8WnrvdC3SvZQuAhGKqHVn7BLKZWgaF1AUsqjss vhfyolj6/O8Cttfvo3nySUE4U7Yx1bpnhiLLYLPZIlNFJh+O8UsSvgA9lgBNO0rdOMSu u+fA== X-Forwarded-Encrypted: i=1; AJvYcCWnb59smSYiNFgjp6VnGm0aklBGwqwPDP3RGRgr5VpDkCF/XrKRTEBpsWXX6BEYzV34VR9JIHx2DCNG9Y2xWRFkebvBmHlB4i3I5M75p7+A8t2OWoiBQvxQRUKN0FbI4KPjjkuxCxXMzhUoWQZuwZU7K2yPeDt5H+Xc4eqCM80xVfUY0A== X-Gm-Message-State: AOJu0YwnfUR3rPdsFEOC94wfreZEFc4U7r8O8SJ5hGczP9cxr1TFW7Lu XQg5eazUgsnRe2fOcFcEFyWOTDSg3i+F85KnpXqYwvNQ7z4XJ4PN X-Google-Smtp-Source: AGHT+IGnRWRr2o+oA3EM/VynZOBdxxp9ijkn0OKBKLyHSsXT40cOAd4QJXajBgNbKMlE+nu9v5KLMw== X-Received: by 2002:a05:6870:c095:b0:254:7cd4:9092 with SMTP id 586e51a60fabf-258428eb176mr11682004fac.20.1718699854751; Tue, 18 Jun 2024 01:37:34 -0700 (PDT) Received: from localhost.localdomain ([122.8.183.87]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-256993a0d23sm3052169fac.58.2024.06.18.01.37.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jun 2024 01:37:24 -0700 (PDT) From: Chen Wang To: adrian.hunter@intel.com, aou@eecs.berkeley.edu, conor+dt@kernel.org, guoren@kernel.org, inochiama@outlook.com, jszhang@kernel.org, krzysztof.kozlowski+dt@linaro.org, palmer@dabbelt.com, paul.walmsley@sifive.com, robh@kernel.org, ulf.hansson@linaro.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-riscv@lists.infradead.org, chao.wei@sophgo.com, haijiao.liu@sophgo.com, xiaoguang.xing@sophgo.com, tingzhu.wang@sophgo.com Cc: Chen Wang Subject: [PATCH v4 0/4] mmc: sdhci-of-dwcmshc: Add Sophgo SG2042 support Date: Tue, 18 Jun 2024 16:37:08 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chen Wang This patchset is composed of two parts: - one is the improvement of the sdhci-of-dwcmshc framework, - the other is the support for sg2042 based on the improvement of the framework. The reason for merging the two parts into one patchset is mainly to facilitate review, especially to facilitate viewing why we need to improve the framework and what benefits it will bring to us. When I tried to add a new soc(SG2042) to sdhci-of-dwcmshc, I found that the existing driver code could be optimized to facilitate expansion for the new soc. Patch 1 "mmc: sdhci-of-dwcmshc: add callback functions for dwcmshc" is for this. Patch 2 ~ 3 are adding support for the mmc controller for Sophgo SG2042. Adding corresponding new compatible strings, and implement custom callbacks for SG2042 based on new framework. Patch 4 is the change for DTS. By the way, although I believe this patch only optimizes the framework of the code and does not change the specific logic, simple verification is certainly better. Since I don't have rk35xx/th1520 related hardware, it would be greatly appreciated if someone could help verify it. Note, the DTS change has dependency on clock changes for SG2042, which has not been merged in master/upstream, so if you want to test this new sdhci-of-dwcmshc driver for other hardware except SG2042, don't pick patch 4. --- Changes in v4: The patch series is based on latest 'next' branch of [mmc-git]. Improved the dirvier code as per comments from Adrian Hunter, drop moving position and renaming for some helper functions. Put the sg2042 support as part of this series, improve the bindings and code as per comments from last review. Changes in v3: The patch series is based on latest 'next' branch of [mmc-git]. You can simply review or test the patches at the link [3]. Improved the dirvier code as per comments from Adrian Hunter. Define new structure for dwcmshc platform data/ops. In addition, I organized the code and classified the helper functions. Since the file changes were relatively large (though the functional logic did not change much), I split the original patch into four for the convenience of review. Changes in v2: Rebased on latest 'next' branch of [mmc-git]. You can simply review or test the patches at the link [2]. Changes in v1: The patch series is based on v6.9-rc1. You can simply review or test the patches at the link [1]. Link: git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git [mmc-git] Link: https://lore.kernel.org/linux-mmc/cover.1713257181.git.unicorn_wang@outlook.com/ [1] Link: https://lore.kernel.org/linux-mmc/cover.1714270290.git.unicorn_wang@outlook.com/ [2] Link: https://lore.kernel.org/linux-mmc/cover.1718241495.git.unicorn_wang@outlook.com/ [3] --- Chen Wang (4): mmc: sdhci-of-dwcmshc: add callback functions for dwcmshc dt-bindings: mmc: sdhci-of-dwcmhsc: Add Sophgo SG2042 support mmc: sdhci-of-dwcmshc: Add support for Sophgo SG2042 riscv: dts: add mmc controllers for Sophgo SG2042 SoC .../bindings/mmc/snps,dwcmshc-sdhci.yaml | 69 ++- .../boot/dts/sophgo/sg2042-milkv-pioneer.dts | 17 + arch/riscv/boot/dts/sophgo/sg2042.dtsi | 32 ++ drivers/mmc/host/sdhci-of-dwcmshc.c | 499 ++++++++++++------ 4 files changed, 447 insertions(+), 170 deletions(-) base-commit: d6cd1206ffaaa890e81f5d1134856d9edd406ec6