From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1546708-1519219010-2-16650581084326859966 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 0.001, 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=1519219010; b=WEH01i9pqhlPnDzY/eKh8F0G6hECBbwADAdgRT4H1N5ug84 jlPXvcGmIxjltxIHzUHy8+Nwd3BLARRGfjJOXzPJTtYkHyftudu4zSUS3lchSuex AsKdUh4xccLEVAGJ/Hp7kyJ7t8Xa54g/4H3S0jkiZ+MWdBq/gUqBH5zvqECOqrU0 6rI6kiWPE08FPuBA5fpUWSAHV50HZdyf8Uk0o3EDtavXGPsn1/G7t5FuuWovMtfy lfn8n7Ktx1gbtIdAnQawgGOAlVWSNTX/o0Zag+PLZAptvCGLvVPS0k/0QqII/19U 5WX5708PfYwI+rfZuygBzlFsw9xTMEfAAFm11mg== 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=1519219010; bh=peqgLBDz5ZZNEHjCiW/oZUGS6V hzxFZwFhKHj0iT8mA=; b=R9SN3LCgGQ9UCWr8wBm+VXlae0XWfVJAHl3evaScsd dIDmQCIoFY+wV8MQNZC/TRnHyqa2ig2y+xhFls7qRzwcRaDLSkr4y5HV+lHu7Fht MvL+wOK44xfKBtMbx2U0iGlAzx5/nT8bZLzaFUkzWAj9VKk1cPlxkMvLVAg7RO4Y 9TGFgZZKlmHnKmX3ZG+rmS+p/2iDfhMvFWPVhx2UFOP6YC4TwiR9pdbEXrEgP5j+ GjYSvMhZHl52gsUB2AolN7iTQYw0xD0+U+eJtqcFpvvjkDZmrNX40/qpE7Z39umC 3u4l33IdwLBe84D8d/QCTgcmyd5O72VDlvNNfhDycCcw== ARC-Authentication-Results: i=1; mx6.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 Authentication-Results: mx6.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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751667AbeBUNQg (ORCPT ); Wed, 21 Feb 2018 08:16:36 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:45928 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754533AbeBUNNI (ORCPT ); Wed, 21 Feb 2018 08:13:08 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "yinbo.zhu" , Adrian Hunter , Ulf Hansson , Rasmus Villemoes Subject: [PATCH 4.15 162/163] mmc: sdhci-of-esdhc: fix eMMC couldnt work after kexec Date: Wed, 21 Feb 2018 13:49:51 +0100 Message-Id: <20180221124538.870625428@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180221124529.931834518@linuxfoundation.org> References: <20180221124529.931834518@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: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: yinbo.zhu commit 97618aca1440b5addc5c3d78659d3e176be23b80 upstream. The bit eSDHC_TBCTL[TB_EN] couldn't be reset by eSDHC_SYSCTL[RSTA] which is used to reset for all. The driver should make sure it's cleared before card initialization, otherwise the initialization would fail. Signed-off-by: yinbo.zhu Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson Cc: Rasmus Villemoes Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sdhci-of-esdhc.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -785,6 +785,10 @@ static void esdhc_init(struct platform_d pltfm_host = sdhci_priv(host); esdhc = sdhci_pltfm_priv(pltfm_host); + val = sdhci_readl(host, ESDHC_TBCTL); + val &= ~ESDHC_TB_EN; + sdhci_writel(host, val, ESDHC_TBCTL); + host_ver = sdhci_readw(host, SDHCI_HOST_VERSION); esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >> SDHCI_VENDOR_VER_SHIFT;