1# 2# MMC core configuration 3# 4config PWRSEQ_EMMC 5 tristate "HW reset support for eMMC" 6 default y 7 depends on OF 8 help 9 This selects Hardware reset support aka pwrseq-emmc for eMMC 10 devices. By default this option is set to y. 11 12 This driver can also be built as a module. If so, the module 13 will be called pwrseq_emmc. 14 15config PWRSEQ_SD8787 16 tristate "HW reset support for SD8787 BT + Wifi module" 17 depends on OF && (MWIFIEX || BT_MRVL_SDIO) 18 help 19 This selects hardware reset support for the SD8787 BT + Wifi 20 module. By default this option is set to n. 21 22 This driver can also be built as a module. If so, the module 23 will be called pwrseq_sd8787. 24 25config PWRSEQ_SIMPLE 26 tristate "Simple HW reset support for MMC" 27 default y 28 depends on OF 29 help 30 This selects simple hardware reset support aka pwrseq-simple for MMC 31 devices. By default this option is set to y. 32 33 This driver can also be built as a module. If so, the module 34 will be called pwrseq_simple. 35 36config MMC_BLOCK 37 tristate "MMC block device driver" 38 depends on BLOCK 39 default y 40 help 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. 45 46config MMC_BLOCK_MINORS 47 int "Number of minors per block device" 48 depends on MMC_BLOCK 49 range 4 256 50 default 8 51 help 52 Number of minors per block device. One is needed for every 53 partition on the disk (plus one for the whole disk). 54 55 Number of total MMC minors available is 256, so your number 56 of supported block devices will be limited to 256 divided 57 by this number. 58 59 Default is 8 to be backwards compatible with previous 60 hardwired device numbering. 61 62 If unsure, say 8 here. 63 64config MMC_BLOCK_BOUNCE 65 bool "Use bounce buffer for simple hosts" 66 depends on MMC_BLOCK 67 default y 68 help 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 73 rarely can provide. 74 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 78 physical memory. 79 80 If unsure, say Y here. 81 82config SDIO_UART 83 tristate "SDIO UART/GPS class support" 84 depends on TTY 85 help 86 SDIO function driver for SDIO cards that implements the UART 87 class, as well as the GPS class which appears like a UART. 88 89config MMC_TEST 90 tristate "MMC host test driver" 91 help 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. 97 98 This driver is only of interest to those developing or 99 testing a host driver. Most people should say N here. 100 101