From patchwork Wed Nov 30 15:08:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomer Maimon X-Patchwork-Id: 1710554 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4NMjM20yK6z23ng for ; Thu, 1 Dec 2022 02:10:38 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4NMjM1756xz3bg8 for ; Thu, 1 Dec 2022 02:10:37 +1100 (AEDT) X-Original-To: openbmc@lists.ozlabs.org Delivered-To: openbmc@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=fail (SPF fail - not authorized) smtp.mailfrom=nuvoton.com (client-ip=212.199.177.27; helo=herzl.nuvoton.co.il; envelope-from=tomer.maimon@nuvoton.com; receiver=) Received: from herzl.nuvoton.co.il (unknown [212.199.177.27]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4NMjKT5bZMz304s for ; Thu, 1 Dec 2022 02:09:13 +1100 (AEDT) Received: from NTILML01.nuvoton.com (ntil-fw [212.199.177.25]) by herzl.nuvoton.co.il (8.13.8/8.13.8) with ESMTP id 2AUF94q2020113 for ; Wed, 30 Nov 2022 17:09:04 +0200 Received: from NTHCCAS02.nuvoton.com (10.1.9.121) by NTILML01.nuvoton.com (10.190.1.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Wed, 30 Nov 2022 17:09:03 +0200 Received: from NTHCCAS01.nuvoton.com (10.1.8.28) by NTHCCAS02.nuvoton.com (10.1.9.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Wed, 30 Nov 2022 23:09:01 +0800 Received: from taln60.nuvoton.co.il (10.191.1.180) by NTHCCAS01.nuvoton.com (10.1.12.25) with Microsoft SMTP Server id 15.1.2375.7 via Frontend Transport; Wed, 30 Nov 2022 23:09:01 +0800 Received: by taln60.nuvoton.co.il (Postfix, from userid 10070) id 6A69763A6B; Wed, 30 Nov 2022 17:09:00 +0200 (IST) From: Tomer Maimon To: , , , , , , , , , , , , , , , Subject: [PATCH v1 2/2] mmc: sdhci-npcm: Add NPCM SDHCI driver Date: Wed, 30 Nov 2022 17:08:57 +0200 Message-ID: <20221130150857.67113-3-tmaimon77@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20221130150857.67113-1-tmaimon77@gmail.com> References: <20221130150857.67113-1-tmaimon77@gmail.com> MIME-Version: 1.0 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, openbmc@lists.ozlabs.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Tomer Maimon Errors-To: openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "openbmc" Add Nuvoton NPCM BMC sdhci-pltfm controller driver. Signed-off-by: Tomer Maimon --- drivers/mmc/host/Kconfig | 8 ++++ drivers/mmc/host/Makefile | 1 + drivers/mmc/host/sdhci-npcm.c | 81 +++++++++++++++++++++++++++++++++++ 3 files changed, 90 insertions(+) create mode 100644 drivers/mmc/host/sdhci-npcm.c diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index fb1062a6394c..4b2d9ce4308c 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -709,6 +709,14 @@ config MMC_TMIO This provides support for the SD/MMC cell found in TC6393XB, T7L66XB and also HTC ASIC3 +config MMC_SDHCI_NPCM + tristate "Secure Digital Host Controller Interface support for NPCM" + depends on ARCH_NPCM || COMPILE_TEST + depends on MMC_SDHCI_PLTFM + help + This provides support for the SD/eMMC controller found in + NPCM BMC family SoCs. + config MMC_SDHI tristate "Renesas SDHI SD/SDIO controller support" depends on SUPERH || ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index 4e4ceb32c4b4..801086613d7f 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_MMC_SPI) += of_mmc_spi.o obj-$(CONFIG_MMC_S3C) += s3cmci.o obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o +obj-$(CONFIG_MMC_SDHCI_NPCM) += sdhci-npcm.o obj-$(CONFIG_MMC_TMIO_CORE) += tmio_mmc_core.o obj-$(CONFIG_MMC_SDHI) += renesas_sdhi_core.o obj-$(CONFIG_MMC_SDHI_SYS_DMAC) += renesas_sdhi_sys_dmac.o diff --git a/drivers/mmc/host/sdhci-npcm.c b/drivers/mmc/host/sdhci-npcm.c new file mode 100644 index 000000000000..298c5f3e7c2b --- /dev/null +++ b/drivers/mmc/host/sdhci-npcm.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * NPCM SDHC MMC host controller driver. + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "sdhci-pltfm.h" + +static const struct sdhci_pltfm_data npcm_sdhci_pdata = { + .quirks = SDHCI_QUIRK_DELAY_AFTER_POWER, + .quirks2 = SDHCI_QUIRK2_STOP_WITH_TC | + SDHCI_QUIRK2_NO_1_8_V, +}; + +static int npcm_sdhci_probe(struct platform_device *pdev) +{ + struct sdhci_pltfm_host *pltfm_host; + struct sdhci_host *host; + u32 caps; + int ret; + + host = sdhci_pltfm_init(pdev, &npcm_sdhci_pdata, 0); + if (IS_ERR(host)) + return PTR_ERR(host); + + pltfm_host = sdhci_priv(host); + pltfm_host->clk = devm_clk_get(&pdev->dev, NULL); + + if (!IS_ERR(pltfm_host->clk)) + clk_prepare_enable(pltfm_host->clk); + + caps = sdhci_readl(host, SDHCI_CAPABILITIES); + if (caps & SDHCI_CAN_DO_8BIT) + host->mmc->caps |= MMC_CAP_8_BIT_DATA; + + ret = mmc_of_parse(host->mmc); + if (ret) + goto err_sdhci_add; + + ret = sdhci_add_host(host); + if (ret) + goto err_sdhci_add; + + return 0; + +err_sdhci_add: + clk_disable_unprepare(pltfm_host->clk); + sdhci_pltfm_free(pdev); + return ret; +} + +static const struct of_device_id npcm_sdhci_of_match[] = { + { .compatible = "nuvoton,npcm750-sdhci" }, + { .compatible = "nuvoton,npcm845-sdhci" }, + { } +}; +MODULE_DEVICE_TABLE(of, npcm_sdhci_of_match); + +static struct platform_driver npcm_sdhci_driver = { + .driver = { + .name = "npcm-sdhci", + .of_match_table = npcm_sdhci_of_match, + .pm = &sdhci_pltfm_pmops, + }, + .probe = npcm_sdhci_probe, + .remove = sdhci_pltfm_unregister, +}; + +module_platform_driver(npcm_sdhci_driver); + +MODULE_DESCRIPTION("NPCM Secure Digital Host Controller Interface driver"); +MODULE_AUTHOR("Tomer Maimon "); +MODULE_LICENSE("GPL v2");