From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 07 May 2026 10:05:40 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wKtjo-001tP2-3A for lore@lore.pengutronix.de; Thu, 07 May 2026 10:05:40 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1wKtjj-0006oE-0h for lore@pengutronix.de; Thu, 07 May 2026 10:05:40 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Content-Transfer-Encoding:Content-Type:In-Reply-To:To:Subject:From:Reply-To: MIME-Version:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References:List-Owner; bh=Mw1UagiR9eDzwpVELdWslZYOJ6SRJk0Wi1Y9JPqubk4=; b=FsoLeR9jMHpMPT1cBCeIupRKJ1 FnU7Q4Qmdij5uGs/O5ph3EWNBdnMOTCpreh8bH2oXRRkbIWWKT1fiL4nVL6Dtu2v8ZOAJl/71++j4 K0re3itrGLUqcFI1jyec8/aSjz+w6seIN8W3/j/1kQVA5LUQMN+qSLkGlyVbYPR4lwnlrtGhOrD5Z JFTr5RAsf2TZrTIy8FoyqYQQNvoM49/ZCf1Vfkhnu05pOhYShz3geQMeUHau+9wrT6z4dvH2A8OBc daa6MIw0mqe9wvjNt3emD7I9u6QPrUU/A9J/9mNTvh2Z4q6uh1Swp/5IqqO5esUWOZS5CkgTowlLz wVJ9I4aw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKthS-000000035hd-3K5m; Thu, 07 May 2026 08:03:14 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wKthP-000000035gg-0Jbc for barebox@lists.infradead.org; Thu, 07 May 2026 08:03:13 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1wKthL-0005Nv-Pj; Thu, 07 May 2026 10:03:07 +0200 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wKthL-000soQ-0U; Thu, 07 May 2026 10:03:07 +0200 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.98.2) (envelope-from ) id 1wKthL-00000005iSp-239c; Thu, 07 May 2026 10:03:07 +0200 From: "Sascha Hauer" To: "Ahmad Fatoum" In-Reply-To: 79ed02bc-045d-4e0b-a1a4-0158787cb39c@pengutronix.de Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 07 May 2026 08:03:07 +0000 Message-Id: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260507_010311_118853_4184DDF1 X-CRM114-Status: GOOD ( 17.13 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: BAREBOX , "Claude Opus 4.7" , Sascha Hauer Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 0/6] mci: rockchip-dwcmshc: add HS200 support X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On 2026-05-07 09:47, Ahmad Fatoum wrote: > Hi, >=20 > On 5/7/26 9:02 AM, Sascha Hauer wrote: > > At least on RK3588 the dwcmshc core doesn't have an internal clock > > divider, we fully rely on the clock tree to configure the MMC clock. > > By default the clock comes from the 24MHz oscillator. For higher MMC > > clocks we have to reparent to a PLL clock, but if we do this once the > > 6bit divider iss not enough to scale down to the 400kHz MMC > > initialization clock. This means we must dynamically reparent the clock. > > This series adds support for finding the best divider/mux combination > > for composite clocks. > >=20 > > This series also adds some fixes to the dwcmshc driver which used to > > timeout on writing sometimes. >=20 > \o/ >=20 > How much faster was the reading now in your testing? I now reach 120MB/s compared to 20MB/s before. Sascha --=20 Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |