From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 062802376E1; Tue, 24 Jun 2025 11:58:29 +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=1750766314; cv=none; b=kymxA8UNCP8I3bMSMjC/d7Mk+iXAsFrDTOD9hHeLll/SlUkGn3Q7a18BhZY6GmGz6IVpFK9CgLV37RkkA0DUhf/eeOgROzinUT/kKCaEgtf99tMNSW2UVIm0ofhwxBRwMwskEEVyL7Gm/CC30+4NXrqAjp7Tq8eN6kPq/hYtVtE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750766314; c=relaxed/simple; bh=rGp24HhF+1pOwu85qNC5bnROKkUUy/fG4sK7Cs5MWX8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=OFshVBhy4Vb3LTlsbHqNLcojXYpTqcLqvqdZn47ZwFb2TCvR8ajvwu1x0xryNF1JC92s96aggqWhey438a/1/5O3mE5XwLbumPptutssLLWARsK3xD+Bnl4MHMFrqx1QBCdL2lWNsO53SJYo02kXE/km5EmWDYuSaBQ3JJd/Ycw= 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 _____8AxQK3jklpoNDocAQ--.46349S3; Tue, 24 Jun 2025 19:58:27 +0800 (CST) Received: from localhost.localdomain (unknown [223.64.68.149]) by front1 (Coremail) with SMTP id qMiowMDxu8TcklpohsAoAQ--.53899S2; Tue, 24 Jun 2025 19:58:24 +0800 (CST) From: Binbin Zhou To: Binbin Zhou , Huacai Chen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ulf Hansson Cc: Huacai Chen , Xuerui Wang , loongarch@lists.linux.dev, devicetree@vger.kernel.org, linux-mmc@vger.kernel.org, wanghongliang@loongson.cn, Binbin Zhou Subject: [PATCH v4 0/4] LoongArch: Introduce the Loongson-2K MMC host controller driver Date: Tue, 24 Jun 2025 19:58:09 +0800 Message-ID: X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:qMiowMDxu8TcklpohsAoAQ--.53899S2 X-CM-SenderInfo: p2kr3uplqex0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj93XoWxCF13WF4kXFWxJF15uw18Xrc_yoW5AF1kpa 98u343Gr4UKr45Ars3Gay8Cr15u345Xr9rGFsxGw18Wa98u34UZ3sYkFWY9FW3urW8Wry7 Zr95ua1F9a4UCrXCm3ZEXasCq-sJn29KB7ZKAUJUUUU5529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUyEb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27wAqx4 xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v2 6r4j6F4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x0EwI xGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480 Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7 IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k2 6cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxV AFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7IU8vApUUUUUU== 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. ------- V4: patch(2/4): - Code formatting; - Fix lkp error https://lore.kernel.org/all/202506202031.TNchn822-lkp@intel.com/ patch(4/4): - Rename function names: ls2k1000_mmc_regmap_config -> ls2k0500_mmc_regmap_config loongson2_mmc_reorder_cmd_data -> ls2k0500_mmc_reorder_cmd_data loongson2_mmc_set_internal_dma -> ls2k2000_mmc_set_internal_dma - Use macro definitions for magic numbers. Link to V3: https://lore.kernel.org/all/cover.1750216134.git.zhoubinbin@loongson.cn/ V3: patch(1/4): - Rename dt-binding file as loongson,ls2k0500-mmc.yaml. patch(2/4): - Fix lkp error; 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 | 1029 +++++++++++++++++ 5 files changed, 1162 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml create mode 100644 drivers/mmc/host/loongson2-mmc.c base-commit: f5c755ef810009b85350884c483705bd04365370 -- 2.47.1