From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1098017-1521803969-2-2912605388333350952 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521803969; b=FRyZV38+QRwWc6JSqZNjz+6ENNzIxYeEhCZSPyrBw8XTPlp 6xhNFAqC1xJ0op3svYPzEgSm7fCtdq6sQ3FQUav3FkrvZaUQylOEzXE2TRiia6DH xmk92dM/KocOOHZsWrsFrh8vAKZ1Ck3h0vZNbkii+6lM68ptzxe39fb9kAYZdmy0 TxV5MJCn9isaLHDhoWZABPVmVXE7JSE6ZRfp1GtiqvqnArFd1U/ad9leuD5pudkR rquOF0qaC8nVMVDGkKsC0vhMKm2vz5XzJG12k2zg+QV2CrEse1n01iUgfX85fnqr q5H3Fz7vx5vFps8tPJeluorp6ZGUx/AUOB0nbcg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1521803969; bh=llIwnrIlDPxmBoR6X49fZ/nkhy Vj4iTtnrA6hm/+r/w=; b=X1srHaa1avX3MKQqLI6eBRhnBb5BoOLH6RMfXhfCcH rF230S4J2t1dL9fYTugZavsPitpCv86iXQt84p3lQtDsZ2jI1hnRKLskS0Cla9WT cm4OuobCr01nQwas/dF/Kc4RGoPNZ3kFbjofqVpYxJZYE3T2nvwRZvs/l4AtyoKm RgEHCMF0R683wseEbm18ZZCUUNQEdl4Fdyfga0M2huGYOnqB6cUBBIw8sjavS5i+ Jz65knHuyKHCzMYO1udIU6JE/xJy3WUy7uTtTQ9SyQoHrVHPyhOr3vAi8ojeLGvm 3NBooykb3xjUW4eY3BmfhTYxpV9+r/il+yHYapiskhzA== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752791AbeCWLTJ (ORCPT ); Fri, 23 Mar 2018 07:19:09 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:41876 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755238AbeCWKI5 (ORCPT ); Fri, 23 Mar 2018 06:08:57 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yangbo Lu , Adrian Hunter , Ulf Hansson , Sasha Levin Subject: [PATCH 4.9 092/177] mmc: sdhci-of-esdhc: limit SD clock for ls1012a/ls1046a Date: Fri, 23 Mar 2018 10:53:40 +0100 Message-Id: <20180323094209.348809340@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323094205.090519271@linuxfoundation.org> References: <20180323094205.090519271@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: yangbo lu [ Upstream commit a627f025eb0534052ff451427c16750b3530634c ] The ls1046a datasheet specified that the max SD clock frequency for eSDHC SDR104/HS200 was 167MHz, and the ls1012a datasheet specified it's 125MHz for ls1012a. So this patch is to add the limitation. Signed-off-by: Yangbo Lu Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sdhci-of-esdhc.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -432,6 +432,20 @@ static void esdhc_of_set_clock(struct sd if (esdhc->vendor_ver < VENDOR_V_23) pre_div = 2; + /* + * Limit SD clock to 167MHz for ls1046a according to its datasheet + */ + if (clock > 167000000 && + of_find_compatible_node(NULL, NULL, "fsl,ls1046a-esdhc")) + clock = 167000000; + + /* + * Limit SD clock to 125MHz for ls1012a according to its datasheet + */ + if (clock > 125000000 && + of_find_compatible_node(NULL, NULL, "fsl,ls1012a-esdhc")) + clock = 125000000; + /* Workaround to reduce the clock frequency for p1010 esdhc */ if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) { if (clock > 20000000)