mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards
authorDirk Behme <dirk.behme@de.bosch.com>
Wed, 14 Mar 2018 14:50:09 +0000 (14:50 +0000)
committerUlf Hansson <ulf.hansson@linaro.org>
Thu, 15 Mar 2018 09:50:59 +0000 (10:50 +0100)
commitdbe7dc6b9b28f5b012b0bedc372aa0c52521f3e4
tree78e4b085300df55b24d2e2ed14b65723fa3f7572
parente22842dd64bf86753d3f2b6ea474d73fc1e6ca24
mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards

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>
drivers/mmc/core/card.h
drivers/mmc/core/quirks.h