2 # MMC core configuration
5 tristate "HW reset support for eMMC"
9 This selects Hardware reset support aka pwrseq-emmc for eMMC
10 devices. By default this option is set to y.
12 This driver can also be built as a module. If so, the module
13 will be called pwrseq_emmc.
16 tristate "HW reset support for SD8787 BT + Wifi module"
17 depends on OF && (MWIFIEX || BT_MRVL_SDIO)
19 This selects hardware reset support for the SD8787 BT + Wifi
20 module. By default this option is set to n.
22 This driver can also be built as a module. If so, the module
23 will be called pwrseq_sd8787.
26 tristate "Simple HW reset support for MMC"
30 This selects simple hardware reset support aka pwrseq-simple for MMC
31 devices. By default this option is set to y.
33 This driver can also be built as a module. If so, the module
34 will be called pwrseq_simple.
37 tristate "MMC block device driver"
41 Say Y here to enable the MMC block device driver support.
42 This provides a block device driver, which you can use to
43 mount the filesystem. Almost everyone wishing MMC support
44 should say Y or M here.
46 config MMC_BLOCK_MINORS
47 int "Number of minors per block device"
52 Number of minors per block device. One is needed for every
53 partition on the disk (plus one for the whole disk).
55 Number of total MMC minors available is 256, so your number
56 of supported block devices will be limited to 256 divided
59 Default is 8 to be backwards compatible with previous
60 hardwired device numbering.
62 If unsure, say 8 here.
64 config MMC_BLOCK_BOUNCE
65 bool "Use bounce buffer for simple hosts"
69 SD/MMC is a high latency protocol where it is crucial to
70 send large requests in order to get high performance. Many
71 controllers, however, are restricted to continuous memory
72 (i.e. they can't do scatter-gather), something the kernel
75 Say Y here to help these restricted hosts by bouncing
76 requests back and forth from a large buffer. You will get
77 a big performance gain at the cost of up to 64 KiB of
80 If unsure, say Y here.
83 tristate "SDIO UART/GPS class support"
86 SDIO function driver for SDIO cards that implements the UART
87 class, as well as the GPS class which appears like a UART.
90 tristate "MMC host test driver"
92 Development driver that performs a series of reads and writes
93 to a memory card in order to expose certain well known bugs
94 in host controllers. The tests are executed by writing to the
95 "test" file in debugfs under each card. Note that whatever is
96 on your card will be overwritten by these tests.
98 This driver is only of interest to those developing or
99 testing a host driver. Most people should say N here.