From patchwork Wed Jun 18 08:07:24 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Binbin Zhou X-Patchwork-Id: 898211 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5ED1725C6F0 for ; Wed, 18 Jun 2025 08:08:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750234083; cv=none; b=eH3mAzcmFsi2fJBqm9Poa8J07fgbUwt4wyBju7/bGIFwx2g62OEJGeKIHlks+uTZNgTo2DWIMBrDAJu+eqqXApaAxa/V41B7cqXkYk9jzra46dzaN3MWsgGqWj3l51jn1FzYD1h07fT3pKxYsLt2gCM76EnyWf6txMNjeaeQ6iI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750234083; c=relaxed/simple; bh=xvX4ag3gAmJrZgEy8RbSxOpykRj9bDtqzprzwDWM6LU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=FsukkSfsbkp/NfDq3Ii8BdFJZVnmwKB7KrkFSfWFNbf2phcf13REdipN2DgHqfm4NzXWOp+k2AXVQADiUoI6Drs4cTDDLfOmpj/5Y2pGHLp7yZ1QodvfwiIs/FZOvaeM/293nkky+GjX1vhBm8VnsLylojF8Fp8zoflSfIATIkg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [223.64.68.149]) by gateway (Coremail) with SMTP id _____8Cx_eLRc1JoV_sYAQ--.16654S3; Wed, 18 Jun 2025 16:07:45 +0800 (CST) Received: from localhost.localdomain (unknown [223.64.68.149]) by front1 (Coremail) with SMTP id qMiowMDxH+XIc1JoikkfAQ--.28608S2; Wed, 18 Jun 2025 16:07:37 +0800 (CST) From: Binbin Zhou To: Binbin Zhou , Huacai Chen , Ulf Hansson Cc: Huacai Chen , Xuerui Wang , loongarch@lists.linux.dev, linux-mmc@vger.kernel.org, wanghongliang@loongson.cn, Binbin Zhou Subject: [PATCH v3 0/4] LoongArch: Introduce the Loongson-2K MMC host controller driver Date: Wed, 18 Jun 2025 16:07:24 +0800 Message-ID: X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMDxH+XIc1JoikkfAQ--.28608S2 X-CM-SenderInfo: p2kr3uplqex0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj93XoWxCF13WF4kXFWxJF15uw18Xrc_yoW5Gr45pa 98u343Kr4UGr43Crs3GayrAr15u345J3srGanxJw1kWay7ua4UZ3s2kFWYvFW3urW8KrW7 ZFyruF4F9a45CrXCm3ZEXasCq-sJn29KB7ZKAUJUUUUr529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUvKb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1ln4kS14v26r1Y6r17M2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2 x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1Y6r17 McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr4 1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2xFxVAFwI0_Jrv_ JF1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17 CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0 I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I 8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU 0xZFpf9x07jepB-UUUUU= Hi all: This patchset introduce the MMC host controller on Loongson-2K series CPUs. They are similar, except for the interface characteristics and the use of DMA engine, specifically, the Loongson-2K0500/Loongson-2K1000 use an externally shared APBDMA engine, while the Loongson-2K2000 uses an internally exclusive DMA. Based on this, I'm splitting the driver into two patches. List of the patchset: Patch1: bindings for Loongson-2K0500/Loongson-2K1000; Patch2: driver for MMC controller using externally shared APBDMA engine; Patch3: bindings for Loongson-2K2000; Patch4: driver for MMC controller using internally exclusive DMA. Thanks. ------- V3: - Rebase on linux-mmc/next branch. patch(1/4): - Rename dt-binding file as loongson,ls2k0500-mmc.yaml. patch(2/4): - Fix lkp error; https://lore.kernel.org/all/202505081845.0NQYX2nS-lkp@intel.com/ https://lore.kernel.org/all/202505130918.uanOGxju-lkp@intel.com/ - Add regulators support for ios ops; - Add ack_sdio_irq() callback; - Add MMC_CAP2_SDIO_IRQ_NOTHREAD flag; patch(3/4): - Add Ack-by tag. patch(4/4): - Update commit for fix_data_timeout(). Link to V2: https://lore.kernel.org/all/cover.1746581751.git.zhoubinbin@loongson.cn/ V2: patch(1/4): - Add reg define for each reg entry. patch(2/4): - Put all code in the c-file; - Use mmc_from_priv() instead of host->mmc; - Use sdio_signal_irq() instead of mmc_signal_sdio_irq(); - Use devm_mmc_alloc_host() instead of mmc_alloc_host(); - Use mmc_regulator_get_supply(); patch(4/4): - Add fix_cmd_interrupt function which is needed by Loongson-2K2000. Link to V1: https://lore.kernel.org/linux-mmc/cover.1744273956.git.zhoubinbin@loongson.cn/ Binbin Zhou (4): dt-bindings: mmc: Add Loongson-2K SD/SDIO/eMMC controller binding mmc: loongson2: Add Loongson-2K SD/SDIO controller driver dt-bindings: mmc: loongson,ls2k0500-mmc: Add compatible for Loongson-2K2000 mmc: loongson2: Add Loongson-2K2000 SD/SDIO/eMMC controller driver .../bindings/mmc/loongson,ls2k0500-mmc.yaml | 112 ++ MAINTAINERS | 7 + drivers/mmc/host/Kconfig | 13 + drivers/mmc/host/Makefile | 1 + drivers/mmc/host/loongson2-mmc.c | 1032 +++++++++++++++++ 5 files changed, 1165 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml create mode 100644 drivers/mmc/host/loongson2-mmc.c base-commit: 187715cfd12932a528ff3a3952648e2b55381d4c