From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D2B0C46470 for ; Mon, 3 Jun 2019 15:55:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3669027A83 for ; Mon, 3 Jun 2019 15:55:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="Z5RTgstE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729654AbfFCPzn (ORCPT ); Mon, 3 Jun 2019 11:55:43 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:18684 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727501AbfFCPzl (ORCPT ); Mon, 3 Jun 2019 11:55:41 -0400 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x53Frao7004235; Mon, 3 Jun 2019 17:55:32 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=oj2i9QotepYR2OEJaRA4rA4osloqDgU7KpWmr2xHAV4=; b=Z5RTgstEjTOu3kJzZDKFMDW0pptuG4kynxRZd4pfrSSzUfc5448kRLvPE9By7hDZtOII AVFchbmjzobh8nvqt9IUvPQahxuv0ayDJDl+IISHGEbIGM8Ggr8TLriFO9L+obMcUhWA apQnahQGLNggaqyqciQ5SjUkCXrjnGVqufkmHVpYOMwlrTozcf3uiy+s8srrwn7cYK+J ptm56t88CzYu6ViQzX5fReyuLsava8GrQ2hlKtzD1qgYFYqHM3voavDPr2pUfORMSDQS S/p9D6pkw9EvMm/aAD8LdiRo7swQcOfAjQgWPqBWuH1iI+padv5R34fNJNjoabGRdPtV 9A== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2sunmeb8pu-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 03 Jun 2019 17:55:32 +0200 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 8A7D931; Mon, 3 Jun 2019 15:55:31 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 69E414E66; Mon, 3 Jun 2019 15:55:31 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.47) by SAFEX1HUBCAS21.st.com (10.75.90.44) with Microsoft SMTP Server (TLS) id 14.3.439.0; Mon, 3 Jun 2019 17:55:31 +0200 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 14.3.439.0; Mon, 3 Jun 2019 17:55:30 +0200 From: Ludovic Barre To: Ulf Hansson , Rob Herring CC: , Maxime Coquelin , Alexandre Torgue , , , , , , Ludovic Barre Subject: [PATCH V3 3/3] mmc: mmci: add busy detect for stm32 sdmmc variant Date: Mon, 3 Jun 2019 17:55:25 +0200 Message-ID: <1559577325-19266-4-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1559577325-19266-1-git-send-email-ludovic.Barre@st.com> References: <1559577325-19266-1-git-send-email-ludovic.Barre@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.48.0.237] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-06-03_12:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ludovic Barre This patch enables busy detection for stm32 sdmmc which requires to set data timer to define the busy timeout. sdmmc has 2 flags: -busyd0: inverted value of d0 line. -busyd0end which indicates only end of busy following a cmd response. Only one interrupt on busyd0end. Signed-off-by: Ludovic Barre --- drivers/mmc/host/mmci.c | 4 ++++ drivers/mmc/host/mmci.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 5a8b232..6210f1f 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -264,6 +264,10 @@ static struct variant_data variant_stm32_sdmmc = { .datalength_bits = 25, .datactrl_blocksz = 14, .stm32_idmabsize_mask = GENMASK(12, 5), + .busy_detect = true, + .busy_timeout = true, + .busy_detect_flag = MCI_STM32_BUSYD0, + .busy_detect_mask = MCI_STM32_BUSYD0ENDMASK, .init = sdmmc_variant_init, }; diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index b43a958..ac19de8 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -167,6 +167,7 @@ #define MCI_ST_CARDBUSY (1 << 24) /* Extended status bits for the STM32 variants */ #define MCI_STM32_BUSYD0 BIT(20) +#define MCI_STM32_BUSYD0END BIT(21) #define MMCICLEAR 0x038 #define MCI_CMDCRCFAILCLR (1 << 0) -- 2.7.4