From patchwork Thu Feb 21 10:10:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic BARRE X-Patchwork-Id: 10823475 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CA56A1390 for ; Thu, 21 Feb 2019 10:11:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B54E3306A1 for ; Thu, 21 Feb 2019 10:11:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B1AD730689; Thu, 21 Feb 2019 10:11:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EAED0306A7 for ; Thu, 21 Feb 2019 10:11:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=T8BJGea/uYXyu6Be7f+yE1TT74Nwz54JDwhBmxtUp2E=; b=PVKGcfpCr6s6sx ZRr0L01jKFysH5jaxWH27WBomruibbA8jbLueCgI+x1tfAr5SKSwDvBKRX8mpuRueU+ootqFzDzEU IPSrlkez6MTQnCaG4rVm0qg5avfKG3biNG5WDSufSpDhIf9pbgPahVjZD6M+Hcd6m+0pV1HGgcO1g 7gZR118PL5nhd2E+7L9WdRozHfOyqPppJdzOB7LSFqxC6WKkmTIJwYOZdn8umowlqPkFyWU9Fa7Zy tTli4otMQhY8WbmFojPwgQa5JHk+kzKeIKUa1wMpfcYFUvlwvvaLinAF1EF2HZrzSPNXplzaR96xW bmPA6AseTisVSHWS6+uw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gwlK6-0008Tg-Cs; Thu, 21 Feb 2019 10:11:22 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gwlK3-0008Sk-4x for linux-arm-kernel@lists.infradead.org; Thu, 21 Feb 2019 10:11:21 +0000 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1LA6sRO023425; Thu, 21 Feb 2019 11:11:12 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2qsbm9bt6j-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 21 Feb 2019 11:11:12 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 162A149; Thu, 21 Feb 2019 10:11:11 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 8E16B2858; Thu, 21 Feb 2019 10:11:10 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 21 Feb 2019 11:11:10 +0100 Received: from lmecxl0923.lme.st.com (10.48.0.237) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 21 Feb 2019 11:11:09 +0100 From: Ludovic Barre To: Ulf Hansson , Rob Herring Subject: [PATCH 2/2] mmc: mmci: add quirk property to add stm32 transfer mode Date: Thu, 21 Feb 2019 11:10:51 +0100 Message-ID: <1550743851-13588-3-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550743851-13588-1-git-send-email-ludovic.Barre@st.com> References: <1550743851-13588-1-git-send-email-ludovic.Barre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.0.237] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-02-21_06:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190221_021119_481002_C547334A X-CRM114-Status: GOOD ( 12.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Torgue , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org, Ludovic Barre , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ludovic Barre This patch adds a quirk bit to define specific stm32 transfer modes. sdmmc data transfer mode selection could be: -Block data transfer ending on block count. -SDIO multibyte data transfer. -MMC Stream data transfer (not used). -Block data transfer ending with STOP_TRANSMISSION command. Signed-off-by: Ludovic Barre --- drivers/mmc/host/mmci.c | 11 +++++++++++ drivers/mmc/host/mmci.h | 7 +++++++ 2 files changed, 18 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 387ff14..44c721a 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -284,6 +284,7 @@ static struct variant_data variant_stm32_sdmmc = { .datactrl_blocksz = 14, .stm32_idmabsize_mask = GENMASK(12, 5), .init = sdmmc_variant_init, + .quirks = MMCI_QUIRK_STM32_DTMODE, }; static struct variant_data variant_qcom = { @@ -1028,6 +1029,16 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) else datactrl = variant->datactrl_dpsm_enable | blksz_bits << 4; + if (variant->quirks & MMCI_QUIRK_STM32_DTMODE) { + if (host->mmc->card && mmc_card_sdio(host->mmc->card) && + data->blocks == 1) + datactrl |= MCI_DPSM_STM32_MODE_SDIO; + else if (data->stop && !host->mrq->sbc) + datactrl |= MCI_DPSM_STM32_MODE_BLOCK_STOP; + else + datactrl |= MCI_DPSM_STM32_MODE_BLOCK; + } + if (data->flags & MMC_DATA_READ) datactrl |= MCI_DPSM_DIRECTION; diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 474f4fa..9fbd0a4 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -131,6 +131,11 @@ /* Control register extensions in the Qualcomm versions */ #define MCI_DPSM_QCOM_DATA_PEND BIT(17) #define MCI_DPSM_QCOM_RX_DATA_PEND BIT(20) +/* Control register extensions in STM32 versions */ +#define MCI_DPSM_STM32_MODE_BLOCK (0 << 2) +#define MCI_DPSM_STM32_MODE_SDIO (1 << 2) +#define MCI_DPSM_STM32_MODE_STREAM (2 << 2) +#define MCI_DPSM_STM32_MODE_BLOCK_STOP (3 << 2) #define MMCIDATACNT 0x030 #define MMCISTATUS 0x034 @@ -357,6 +362,8 @@ struct variant_data { void (*init)(struct mmci_host *host); }; +#define MMCI_QUIRK_STM32_DTMODE BIT(0) + /* mmci variant callbacks */ struct mmci_host_ops { int (*validate_data)(struct mmci_host *host, struct mmc_data *data);