From patchwork Mon Apr 29 07:19:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Qin X-Patchwork-Id: 793200 Received: from m16.mail.126.com (m16.mail.126.com [117.135.210.8]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 415EF13ADC for ; Mon, 29 Apr 2024 07:20:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714375260; cv=none; b=fLiHN3DzMVAEdYLyqsOBn2p1K5a6Imisa0z4bKDUIPOQAui9m4Ggr8eOiNBih1EdqpT+p5M4YOlbhSmcpdmujK4EPU1Z3Rg3iVhkLoWZxQswP56cn7zPCjz03uYTCyK5Yl2DVywEZ/npo6C1PfazjHw6885dP7Lcj+egWw03PJ0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714375260; c=relaxed/simple; bh=acgWjPIkZ4T1gAI0Z8tVj075vZgrmXAKrfsKztzUzbw=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=FO3x5JpTryiV1nm6D7E7/TJwjU2OW1mRr75hLWVa4HDnORfdNndRCx6u9o7blStzXwOA7ta1Um0v+YJ1Wjx2/QjZEgCXW/OcCD8GQm9jgUJPmIKo6+nVcT+q/4MRl76mu2IoXpym7l6FNSb1HpG7WB8slscpfEHfbEejssavfTI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com; spf=pass smtp.mailfrom=126.com; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b=jIjIVvFR; arc=none smtp.client-ip=117.135.210.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=126.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b="jIjIVvFR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=LFKUr eS/WtTHRsLVnLK7ITptsYQf0eR98emOlLuXrJg=; b=jIjIVvFR6Zu4quxwBoaJM rrjMSrLXJGO9M+M+LM47/4TTcV1F/hOauIEJK5cPxqPZDChxzIdp2tWINSvoASmT 19tULtJmt4LJMgnFYceRjq0f1kBG9GNrC71AlerK1MktbDDSBMjSRfRCEVBg2POY ztRshU7x3Nntx+3bZz9Th4= Received: from localhost.localdomain (unknown [58.22.7.114]) by gzga-smtp-mta-g0-3 (Coremail) with SMTP id _____wDn74EdSi9muFqGAA--.54647S2; Mon, 29 Apr 2024 15:19:58 +0800 (CST) From: Felix Qin To: ulf.hansson@linaro.org, linux-mmc@vger.kernel.org Cc: Felix Qin Subject: [PATCH v3 1/1] mmc: core: increase the timeout period of the ACMD41 command. Date: Mon, 29 Apr 2024 15:19:55 +0800 Message-Id: <20240429071955.163282-1-xiaokeqinhealth@126.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: _____wDn74EdSi9muFqGAA--.54647S2 X-Coremail-Antispam: 1Uf129KBjvdXoWruw4ktw48ur45tr4fWF43trb_yoWkKFg_Ar n5Xrn7WF1YkFy7tr10kwnYqFZ5twn3urn7ua13trZxCrWrJrWrW3Z3Zr9rZr13Wr1fZ3Zr Jas8tr1rX34fCjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xRKOzsJUUUUU== X-CM-SenderInfo: 50ld0yhhtl0xhhdo3xa6rslhhfrp/1tbi6BfP1WVLbGixXgABsh Extensive testing has shown that some specific SD cards require an increased command timeout to be successfully initialized. More info: Platform: Rockchip SoC + DW Multimedia host Controller SD card: Xvv microSD CMH34A17TMA12 (Made in Korea) Note: The SD card is custom-made by the customer in collaboration with the wafer foundry. Signed-off-by: Felix Qin Acked-by: Avri Altman Reviewed-by: Dragan Simic --- v2: Add more info v3: Based on the __mmc_poll_for_busy API for modification --- drivers/mmc/core/sd_ops.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c index 3ce1ff336826..a1c028303ba7 100644 --- a/drivers/mmc/core/sd_ops.c +++ b/drivers/mmc/core/sd_ops.c @@ -19,8 +19,13 @@ #include "sd_ops.h" #include "mmc_ops.h" +/* + * Extensive testing has shown that some specific SD cards + * require an increased command timeout to be successfully + * initialized. + */ #define SD_APP_OP_COND_PERIOD_US (10 * 1000) /* 10ms */ -#define SD_APP_OP_COND_TIMEOUT_MS 1000 /* 1s */ +#define SD_APP_OP_COND_TIMEOUT_MS 2000 /* 2s */ struct sd_app_op_cond_busy_data { struct mmc_host *host;