47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
#
|
|
# MMC core configuration
|
|
#
|
|
|
|
config MMC_UNSAFE_RESUME
|
|
bool "Assume MMC/SD cards are non-removable (DANGEROUS)"
|
|
help
|
|
If you say Y here, the MMC layer will assume that all cards
|
|
stayed in their respective slots during the suspend. The
|
|
normal behaviour is to remove them at suspend and
|
|
redetecting them at resume. Breaking this assumption will
|
|
in most cases result in data corruption.
|
|
|
|
This option is usually just for embedded systems which use
|
|
a MMC/SD card for rootfs. Most people should say N here.
|
|
|
|
This option sets a default which can be overridden by the
|
|
module parameter "removable=0" or "removable=1".
|
|
|
|
config MMC_CLKGATE
|
|
bool "MMC host clock gating (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
This will attempt to aggressively gate the clock to the MMC card.
|
|
This is done to save power due to gating off the logic and bus
|
|
noise when the MMC card is not in use. Your host driver has to
|
|
support handling this in order for it to be of any use.
|
|
|
|
If unsure, say N.
|
|
|
|
config MMC_EMBEDDED_SDIO
|
|
boolean "MMC embedded SDIO device support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
If you say Y here, support will be added for embedded SDIO
|
|
devices which do not contain the necessary enumeration
|
|
support in hardware to be properly detected.
|
|
|
|
config MMC_PARANOID_SD_INIT
|
|
bool "Enable paranoid SD card initialization (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
If you say Y here, the MMC layer will be extra paranoid
|
|
about re-trying SD init requests. This can be a useful
|
|
work-around for buggy controllers and hardware. Enable
|
|
if you are experiencing issues with SD detection.
|