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GET /api/1.1/covers/2228636/?format=api
{ "id": 2228636, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2228636/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/cover/20260427-dwmmc-exynos-hs400-es-v1-0-3495df40a9ac@disroot.org/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.1/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260427-dwmmc-exynos-hs400-es-v1-0-3495df40a9ac@disroot.org>", "date": "2026-04-27T05:52:48", "name": "[0/4] HS400 and HS400ES support for Exynos DW-MMC drivers", "submitter": { "id": 88698, "url": "http://patchwork.ozlabs.org/api/1.1/people/88698/?format=api", "name": "Kaustabh Chakraborty", "email": "kauschluss@disroot.org" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/cover/20260427-dwmmc-exynos-hs400-es-v1-0-3495df40a9ac@disroot.org/mbox/", "series": [ { "id": 501590, "url": "http://patchwork.ozlabs.org/api/1.1/series/501590/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=501590", "date": "2026-04-27T05:52:48", "name": "HS400 and HS400ES support for Exynos DW-MMC drivers", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501590/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2228636/comments/", "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=disroot.org header.i=@disroot.org header.a=rsa-sha256\n header.s=mail header.b=W3DBn6PA;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de;\n envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org)", "phobos.denx.de;\n dmarc=pass (p=reject dis=none) header.from=disroot.org", "phobos.denx.de;\n spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de", "phobos.denx.de;\n\tdkim=pass (2048-bit key;\n secure) header.d=disroot.org header.i=@disroot.org header.b=\"W3DBn6PA\";\n\tdkim-atps=neutral", "phobos.denx.de;\n dmarc=pass (p=reject dis=none) header.from=disroot.org", "phobos.denx.de;\n spf=pass smtp.mailfrom=kauschluss@disroot.org" ], "Received": [ "from phobos.denx.de (phobos.denx.de\n [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g3wD71xFVz1xvV\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 27 Apr 2026 17:28:54 +1000 (AEST)", "from h2850616.stratoserver.net (localhost [IPv6:::1])\n\tby phobos.denx.de (Postfix) with ESMTP id 90C3283693;\n\tMon, 27 Apr 2026 09:28:51 +0200 (CEST)", "by phobos.denx.de (Postfix, from userid 109)\n id E079D83693; Mon, 27 Apr 2026 07:53:01 +0200 (CEST)", "from layka.disroot.org (layka.disroot.org [178.21.23.139])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id C183F80077\n for <u-boot@lists.denx.de>; Mon, 27 Apr 2026 07:52:59 +0200 (CEST)", "from mail01.disroot.lan (localhost [127.0.0.1])\n by disroot.org (Postfix) with ESMTP id 823AA27307;\n Mon, 27 Apr 2026 07:52:59 +0200 (CEST)", "from layka.disroot.org ([127.0.0.1])\n by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP\n id jzygu0r5cbEO; Mon, 27 Apr 2026 07:52:59 +0200 (CEST)" ], "X-Spam-Checker-Version": "SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de", "X-Spam-Level": "", "X-Spam-Status": "No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,\n DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,\n SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail;\n t=1777269178; bh=MbsMAPv5cKak9RtAzMn7Deardvy0p6T+2TTUHaF5Hv4=;\n h=From:Subject:Date:To:Cc;\n b=W3DBn6PAG32P2wkSQQ0d6hXt4F4nWFB5JGmFqabxHVa/NY+8y3PoTFmoUKGoIzqni\n nDKwaLshpEV6p0szyo0jJK9Q/BK8nx7Y/u4bSb2LXIBjdl03E22YBhu/hiEWYfZa1f\n G+AmTJuev1CEBlgMQ54QYEmElhccPF0eH+y+1TvE5LrBVkdf0wd9TgpEgOOH9tH6CK\n AvNK2XxzJE5o0C1CpFlXYYnzzAgBaawTWDj8wxgd19CErGQWW2UzHK+AlreRpg1WRV\n HKkqddEsig+fcwhVrlRaoW979iVStLn33zr3+YqWZjMH5KjqSkVQn91Ed1pUqg9HQw\n sOQF6oa2/o2dg==", "From": "Kaustabh Chakraborty <kauschluss@disroot.org>", "Subject": "[PATCH 0/4] HS400 and HS400ES support for Exynos DW-MMC drivers", "Date": "Mon, 27 Apr 2026 11:22:48 +0530", "Message-Id": "<20260427-dwmmc-exynos-hs400-es-v1-0-3495df40a9ac@disroot.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIALD57mkC/yXMyw6CMBBG4Vchs3aSsSEUfRXjAsqPjAnFdLxAC\n O9uleW3OGclQ1IYnYuVEt5qOsWM46GgMDTxBtYum5y4SkrnufuMY2DMS5yMBytFGMat9yKnppY\n 6gHL7SOh1/n8v1932au8Iz9+Mtu0Lmj+7DnkAAAA=", "X-Change-ID": "20260427-dwmmc-exynos-hs400-es-b77009a808ce", "To": "Peng Fan <peng.fan@nxp.com>, u-boot@lists.denx.de", "Cc": "Minkyu Kang <mk7.kang@samsung.com>, Tom Rini <trini@konsulko.com>,\n Jaehoon Chung <jh80.chung@samsung.com>, Anand Moon <linux.amoon@gmail.com>,\n Sam Protsenko <semen.protsenko@linaro.org>,\n Lukas Timmermann <uboot@timmermann.space>,\n Henrik Grimler <henrik@grimler.se>,\n Kaustabh Chakraborty <kauschluss@disroot.org>", "X-Mailman-Approved-At": "Mon, 27 Apr 2026 09:28:50 +0200", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "Since upstream dts version v7.0+, Exynos 7870 devices have an explicit\n`bus-width = <8>` property. This results in the U-Boot driver trying to\ninitialize the HS400 mode, which appears to fail. The HS400 support\nadded in the DW-MMC Exynos driver appears to have an incomplete init\nsequence.\n\nThis patch series adds the missing pieces to enable HS400 support, and\nadditionally adds support for HS400ES too.\n\nThe last patch in the series also enables HS400ES support in the\nexynos-mobile defconfig.\n\nSigned-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>\n---\nKaustabh Chakraborty (4):\n mmc: exynos_dw_mmc: add proper init sequence for HS400 support\n mmc: dw_mmc: setup set_enhanced_strobe ops in driver\n mmc: exynos_dw_mmc: add support for HS400ES\n configs: exynos-mobile: enable support for HS400ES in MMC driver\n\n arch/arm/mach-exynos/include/mach/dwmmc.h | 5 ++\n configs/exynos-mobile_defconfig | 1 +\n drivers/mmc/dw_mmc.c | 19 +++++++\n drivers/mmc/exynos_dw_mmc.c | 88 ++++++++++++++++++++++++++++++-\n include/dwmmc.h | 10 ++++\n 5 files changed, 121 insertions(+), 2 deletions(-)\n---\nbase-commit: 9f61fd5b80a43ae20ba115e3a2933d47d720ab82\nchange-id: 20260427-dwmmc-exynos-hs400-es-b77009a808ce\n\nBest regards,\n-- \nKaustabh Chakraborty <kauschluss@disroot.org>" }