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-rw-r--r--drivers/mmc/host/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index e23082fe88d..68fb052afd3 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -100,3 +100,16 @@ config MMC_TIFM_SD
To compile this driver as a module, choose M here: the
module will be called tifm_sd.
+config MMC_SPI
+ tristate "MMC/SD over SPI (EXPERIMENTAL)"
+ depends on MMC && SPI_MASTER && !HIGHMEM && EXPERIMENTAL
+ select CRC7
+ select CRC_ITU_T
+ help
+ Some systems accss MMC/SD cards using a SPI controller instead of
+ using a "native" MMC/SD controller. This has a disadvantage of
+ being relatively high overhead, but a compensating advantage of
+ working on many systems without dedicated MMC/SD controllers.
+
+ If unsure, or if your system has no SPI master driver, say N.
+