4.14-stable review patch. If anyone has any objections, please let me know.
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From: Dirk Behme dirk.behme@de.bosch.com
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@de.bosch.com Signed-off-by: Mark Craske Mark_Craske@mentor.com Cc: stable@vger.kernel.org # 4.8+ Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mmc/core/card.h | 1 + drivers/mmc/core/quirks.h | 6 ++++++ 2 files changed, 7 insertions(+)
--- 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 }
--- a/drivers/mmc/core/quirks.h +++ b/drivers/mmc/core/quirks.h @@ -109,6 +109,12 @@ static const struct mmc_fixup mmc_ext_cs */ 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 };