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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7774BC77B7F for ; Mon, 23 Jun 2025 10:29:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FysJsdERAXLKzj90/qFOovdUryahJXjdxyKVlKnU02w=; b=yDLcgizreEv70ZO3WGbVSF35Zy Fuk4fDSgXSvrOV58+KT/d9IPlbCXm+zKTWXH+SUqKfOBD70AFqSsGkZeUcSm51TZN3KHrkHLVgbJN vhqUMk9JGZ0N+USaQvi8tfQURda335HRirt54SOZsihoQ77mwos6tCnb+pH5CsfxtnS0HA/LR5KlT 4v49oYitH1vmRzdCULA86MsBhDmXcUOaeL1TRO7s7XgtwMLyi8JmiuSbZ49vsmoQOnh/V3MfutZ44 nb2k7hH9bhu4d7pSSv1B/VnLdkwuMLqnCL+RowWgcgeHIcJaNuuvW5dJKazwGI6l9kAbv5ISgIJtt /rTHBOsg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uTeQp-00000002Lmu-0Byl; Mon, 23 Jun 2025 10:29:43 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uTdvD-00000002G8g-0Wwn; Mon, 23 Jun 2025 09:57:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1750672621; bh=U7XIW8hy4Y2hgCabhIOAkmUThrnJnj5hGEjrn7p2UNc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=BkyQmY627azdUczLx7oZc3igZbN0MsdTraBo/0pVjbZuOdw5mpSQ4zlCh2Gxb7qs3 ShQVrFvbYRj2O9Gfm5SZk2JNDiv+hQrEFCCFFM8oGfcSjTvg6gJJ2wK+1fl11YUu6F /R5+C/eHWX6uaDf26ohy4DBQPaWOhfx7LOApKDQyDWcm2Y/AgAUu/6OeX1fP8oz+Pr 8lFjROw5L08Q+p8GnF68Qxygy1v/YcMCibXVC4fM288GhOKa7jNOFjku2lgKr79erh uf2JhZHGniRMqAJOn82nwe0QskP9Grnn47MpisOqJKX79T36P0ay195xdrZZeTuUsf gqXvREbwpkoUw== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id B34E717E0CE6; Mon, 23 Jun 2025 11:57:00 +0200 (CEST) Message-ID: Date: Mon, 23 Jun 2025 11:57:00 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/4] mmc: mtk-sd: disable auto CMD23 support for mt7620 To: Shiji Yang , linux-mmc@vger.kernel.org, Chaotian Jing Cc: Ulf Hansson , Matthias Brugger , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org References: From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250623_025703_332907_0F96C746 X-CRM114-Status: UNSURE ( 8.46 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Il 19/06/25 07:35, Shiji Yang ha scritto: > MT7628 ProgrammingGuide indicates that the host controller version > 3.0 and later support auto CMD23 function. However, it doesn't > define the SD command register BIT[29](Auto CMD23 enable bit). I > guess the legacy MIPS MT762x series SoCs don't support this feature > at all. The experiment on JDCloud RE-SP-01B(MT7621 + 128 GiB EMMC) > shows that disabling auto CMD23 can fix the following IO errors: > > [ 143.344604] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.353661] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.362662] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.371684] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.380684] I/O error, dev mmcblk0boot0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 0 > [ 143.390414] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.399468] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.408516] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.417556] mtk-msdc 1e130000.mmc: msdc_track_cmd_data: cmd=6 arg=03B30101; host->error=0x00000002 > [ 143.426590] I/O error, dev mmcblk0boot0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 > [ 143.435585] Buffer I/O error on dev mmcblk0boot0, logical block 0, async page read > > Signed-off-by: Shiji Yang Chaotian, could you please confirm that MT7628 does not support AutoCMD23? Thanks, Angelo