From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:41962 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933584AbeBULwD (ORCPT ); Wed, 21 Feb 2018 06:52:03 -0500 Subject: Patch "mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec" has been added to the 4.9-stable tree To: yinbo.zhu@nxp.com, adrian.hunter@intel.com, gregkh@linuxfoundation.org, rasmus.villemoes@prevas.dk, ulf.hansson@linaro.org Cc: , From: Date: Wed, 21 Feb 2018 12:51:43 +0100 Message-ID: <1519213903184208@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mmc-sdhci-of-esdhc-fix-emmc-couldn-t-work-after-kexec.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 97618aca1440b5addc5c3d78659d3e176be23b80 Mon Sep 17 00:00:00 2001 From: "yinbo.zhu" Date: Wed, 8 Nov 2017 17:09:50 +0800 Subject: mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec 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 @@ -584,6 +584,10 @@ 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; Patches currently in stable-queue which might be from yinbo.zhu@nxp.com are queue-4.9/mmc-sdhci-of-esdhc-fix-the-mmc-error-after-sleep-on-ls1046ardb.patch queue-4.9/mmc-sdhci-of-esdhc-fix-emmc-couldn-t-work-after-kexec.patch