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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3F01EB64DA for ; Wed, 5 Jul 2023 14:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232594AbjGEOnU (ORCPT ); Wed, 5 Jul 2023 10:43:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232580AbjGEOnS (ORCPT ); Wed, 5 Jul 2023 10:43:18 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39A401717; Wed, 5 Jul 2023 07:43:03 -0700 (PDT) Received: from obbardc-t14.home (unknown [IPv6:2a00:23c8:b70a:ae01:7599:ed26:1798:f430]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: obbardc) by madras.collabora.co.uk (Postfix) with ESMTPSA id 3E2906601F5E; Wed, 5 Jul 2023 15:43:01 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1688568181; bh=P5Fm2OLmai5YtKVyYGBI2DmPwndevSpJJeqkn7lP5ck=; h=From:To:Cc:Subject:Date:From; b=TmpRt2quPRUL1+pIUMicinQ4wqcXrxe0QccFxpINEWL3onIO1SDx8kBo9oPwvQttb YSPGD2baFTCg/3ZKSYAcE9g8ToOViebdtTp/NyUFB16m0n9PSNXfE3W4txR94K5mSh C3CF6d6HUGiDZkIpX3twktyeyTfEP5QmFJFSYEQIMmp6oDWpdaSerOEkZpv2zFL1tC MW6QBVkgr45bzi5s1kQj9dLP+i3AK/XubqOg/7Dh+UeBKRQ5rxAwRpKbyoUYVB2gWO XwJgW8iTMNzqMntbv9h0hT/yP54688jSGNv40jJG3a2Kkgr5VRCdkUU2GBjgKrp61q GoaBsdzHk03qg== From: Christopher Obbard To: linux-rockchip@lists.infradead.org Cc: kernel@collabora.com, Christopher Obbard , Akash Gajjar , Conor Dooley , FUKAUMI Naoki , Heiko Stuebner , Jagan Teki , Krzysztof Kozlowski , Manoj Sai , Pragnesh Patel , Rob Herring , Stephen Chen , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 0/2] Disable HS400 for eMMC on Radxa ROCK 4 SBCs Date: Wed, 5 Jul 2023 15:42:53 +0100 Message-Id: <20230705144255.115299-1-chris.obbard@collabora.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There is some instablity with some eMMC modules on ROCK Pi 4 SBCs running in HS400 mode. This ends up resulting in some block errors after a while or after a "heavy" operation utilising the eMMC (e.g. resizing a filesystem). An example of these errors is as follows: [ 289.171014] mmc1: running CQE recovery [ 290.048972] mmc1: running CQE recovery [ 290.054834] mmc1: running CQE recovery [ 290.060817] mmc1: running CQE recovery [ 290.061337] blk_update_request: I/O error, dev mmcblk1, sector 1411072 op 0x1:(WRITE) flags 0x800 phys_seg 36 prio class 0 [ 290.061370] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:348: I/O error 10 writing to inode 29547 starting block 176466) [ 290.061484] Buffer I/O error on device mmcblk1p1, logical block 172288 [ 290.061531] Buffer I/O error on device mmcblk1p1, logical block 172289 [ 290.061551] Buffer I/O error on device mmcblk1p1, logical block 172290 [ 290.061574] Buffer I/O error on device mmcblk1p1, logical block 172291 [ 290.061592] Buffer I/O error on device mmcblk1p1, logical block 172292 [ 290.061615] Buffer I/O error on device mmcblk1p1, logical block 172293 [ 290.061632] Buffer I/O error on device mmcblk1p1, logical block 172294 [ 290.061654] Buffer I/O error on device mmcblk1p1, logical block 172295 [ 290.061673] Buffer I/O error on device mmcblk1p1, logical block 172296 [ 290.061695] Buffer I/O error on device mmcblk1p1, logical block 172297 Disabling the Command Queue seems to stop the CQE recovery from running, but doesn't seem to improve the I/O errors. Until this can be investigated further, disable HS400 mode on the ROCK Pi 4 SBCs to at least stop I/O errors from occurring. Christopher Obbard (2): arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4 arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+ arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts | 3 +-- arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 4 ++-- 2 files changed, 3 insertions(+), 4 deletions(-) -- 2.40.1