From: <gregkh@linuxfoundation.org>
To: yinbo.zhu@nxp.com, adrian.hunter@intel.com,
gregkh@linuxfoundation.org, rasmus.villemoes@prevas.dk,
ulf.hansson@linaro.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec" has been added to the 4.14-stable tree
Date: Wed, 21 Feb 2018 12:50:42 +0100 [thread overview]
Message-ID: <1519213842115103@kroah.com> (raw)
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 4.14-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-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 97618aca1440b5addc5c3d78659d3e176be23b80 Mon Sep 17 00:00:00 2001
From: "yinbo.zhu" <yinbo.zhu@nxp.com>
Date: Wed, 8 Nov 2017 17:09:50 +0800
Subject: mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec
From: yinbo.zhu <yinbo.zhu@nxp.com>
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 <yinbo.zhu@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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;
Patches currently in stable-queue which might be from yinbo.zhu@nxp.com are
queue-4.14/mmc-sdhci-of-esdhc-fix-the-mmc-error-after-sleep-on-ls1046ardb.patch
queue-4.14/mmc-sdhci-of-esdhc-fix-emmc-couldn-t-work-after-kexec.patch
reply other threads:[~2018-02-21 11:51 UTC|newest]
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