diff options
Diffstat (limited to 'drivers/mmc/card/Kconfig')
| -rw-r--r-- | drivers/mmc/card/Kconfig | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/mmc/card/Kconfig b/drivers/mmc/card/Kconfig new file mode 100644 index 0000000..3f2a912 --- /dev/null +++ b/drivers/mmc/card/Kconfig @@ -0,0 +1,52 @@ +# +# MMC/SD card drivers +# + +comment "MMC/SD/SDIO Card Drivers" + +config MMC_BLOCK + tristate "MMC block device driver" + depends on BLOCK + default y + help + Say Y here to enable the MMC block device driver support. + This provides a block device driver, which you can use to + mount the filesystem. Almost everyone wishing MMC support + should say Y or M here. + +config MMC_BLOCK_BOUNCE + bool "Use bounce buffer for simple hosts" + depends on MMC_BLOCK + default y + help + SD/MMC is a high latency protocol where it is crucial to + send large requests in order to get high performance. Many + controllers, however, are restricted to continuous memory + (i.e. they can't do scatter-gather), something the kernel + rarely can provide. + + Say Y here to help these restricted hosts by bouncing + requests back and forth from a large buffer. You will get + a big performance gain at the cost of up to 64 KiB of + physical memory. + + If unsure, say Y here. + +config SDIO_UART + tristate "SDIO UART/GPS class support" + help + SDIO function driver for SDIO cards that implements the UART + class, as well as the GPS class which appears like a UART. + +config MMC_TEST + tristate "MMC host test driver" + default n + help + Development driver that performs a series of reads and writes + to a memory card in order to expose certain well known bugs + in host controllers. The tests are executed by writing to the + "test" file in sysfs under each card. Note that whatever is + on your card will be overwritten by these tests. + + This driver is only of interest to those developing or + testing a host driver. Most people should say N here. |
