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_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 59D05C4321A for ; Fri, 26 Apr 2019 07:47:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C490206E0 for ; Fri, 26 Apr 2019 07:47:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="Kn5khyUH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726474AbfDZHrP (ORCPT ); Fri, 26 Apr 2019 03:47:15 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:54112 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726429AbfDZHrN (ORCPT ); Fri, 26 Apr 2019 03:47:13 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x3Q7fX1E021386; Fri, 26 Apr 2019 09:47:00 +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=jCTk6CI0XmHIJsP6IQQfRWYtJPfMMDEq5OUnOSErtAA=; b=Kn5khyUHr4CFxbIuZvOV00v4viEHQtRGnu5mdtaQK8BQ5mubPzdtB6YHvIirU3t1Uv1L TCzvr9NB0i9PIAHfg/vFbe7HPD2SX1EwUA4n4XUBWMmX0dRj/hsTD/Itfpq+JGDAAigC YEjzKwL9iiQjsJaPC/PU1JYUcEsop45oJULQAy20Gm/ZN9UA+T2nIKijYHT0wN9uFqK4 T7zBq+LD/fXzFfG81otDQR0koIaTcocDZcaNaKzXx2c2d+aHrqc9948QbP01uAAdwxJO 39EUyIxk1C1BJU5lY/5r4y3i38UiEus4IX0zzoAZFlgxPAV61j+awsh5nQADM/aNon/X eg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2ryrvxs2hm-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 26 Apr 2019 09:47:00 +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 D104E42; Fri, 26 Apr 2019 07:46:52 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 9A68513CB; Fri, 26 Apr 2019 07:46:52 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by SAFEX1HUBCAS23.st.com (10.75.90.46) with Microsoft SMTP Server (TLS) id 14.3.439.0; Fri, 26 Apr 2019 09:46:52 +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; Fri, 26 Apr 2019 09:46:52 +0200 From: Ludovic Barre To: Ulf Hansson , Rob Herring CC: , Maxime Coquelin , Alexandre Torgue , , , , , , Ludovic Barre Subject: [PATCH V2 5/5] mmc: mmci: add busy detect for stm32 sdmmc variant Date: Fri, 26 Apr 2019 09:46:38 +0200 Message-ID: <1556264798-18540-6-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1556264798-18540-1-git-send-email-ludovic.Barre@st.com> References: <1556264798-18540-1-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=2019-04-26_05:,, 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 8dcb980..02a3cdd 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