Dirk Behme 3925411384 mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards ...

commit dbe7dc6b9b 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>

2018-03-28 18:24:31 +02:00

5.7 KiB

Raw Blame History

View Raw