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authorroot <root@artemis.panaceas.org>2015-12-25 04:40:36 +0000
committerroot <root@artemis.panaceas.org>2015-12-25 04:40:36 +0000
commit849369d6c66d3054688672f97d31fceb8e8230fb (patch)
tree6135abc790ca67dedbe07c39806591e70eda81ce /drivers/mmc/core/Kconfig
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+#
+# 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.