This is a note to let you know that I've just added the patch titled
mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards
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-core-disable-hpi-for-certain-micron-numonyx-emmc-cards.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 <stable@xxxxxxxxxxxxxxx> know about it.
>From dbe7dc6b9b28f5b012b0bedc372aa0c52521f3e4 Mon Sep 17 00:00:00 2001
From: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Date: Wed, 14 Mar 2018 14:50:09 +0000
Subject: mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards
From: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
commit dbe7dc6b9b28f5b012b0bedc372aa0c52521f3e4 upstream.
Certain Micron eMMC v4.5 cards might get broken when HPI feature is used
and hence this patch disables the HPI feature for such buggy cards.
In U-Boot, these cards are reported as
Manufacturer: Micron (ID: 0xFE)
OEM: 0x4E
Name: MMC32G
Revision: 19 (0x13)
Serial: 959241022 Manufact. date: 8/2015 (0x82) CRC: 0x00
Tran Speed: 52000000
Rd Block Len: 512
MMC version 4.5
High Capacity: Yes
Capacity: 29.1 GiB
Boot Partition Size: 16 MiB
Bus Width: 8-bit
According to JEDEC JEP106 manufacturer 0xFE is Numonyx, which was bought by
Micron.
Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Signed-off-by: Mark Craske <Mark_Craske@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 4.8+
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h
index 79a5b985ccf5..9c821eedd156 100644
--- a/drivers/mmc/core/card.h
+++ b/drivers/mmc/core/card.h
@@ -82,6 +82,7 @@ struct mmc_fixup {
#define CID_MANFID_APACER 0x27
#define CID_MANFID_KINGSTON 0x70
#define CID_MANFID_HYNIX 0x90
+#define CID_MANFID_NUMONYX 0xFE
#define END_FIXUP { NULL }
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index 75d317623852..5153577754f0 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -109,6 +109,12 @@ static const struct mmc_fixup mmc_ext_csd_fixups[] = {
*/
MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_HYNIX,
0x014a, add_quirk, MMC_QUIRK_BROKEN_HPI, 5),
+ /*
+ * Certain Micron (Numonyx) eMMC 4.5 cards might get broken when HPI
+ * feature is used so disable the HPI feature for such buggy cards.
+ */
+ MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_NUMONYX,
+ 0x014e, add_quirk, MMC_QUIRK_BROKEN_HPI, 6),
END_FIXUP
};
Patches currently in stable-queue which might be from dirk.behme@xxxxxxxxxxxx are
queue-4.9/mmc-core-disable-hpi-for-certain-micron-numonyx-emmc-cards.patch