mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards

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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>

...

This commit is contained in:

Dirk Behme 2018-03-14 14:50:09 +00:00 • committed by Ulf Hansson

parent a0e9576634

commit 8ef0797a89

2 changed files with 7 additions and 0 deletions

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1

drivers/mmc/core/card.h

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6

drivers/mmc/core/quirks.h

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