21aef0dd68
This commit does two things: 1. First, it reorganizes the driver Kconfig files so that each is self contained. Before, a part of the driver configuration was in drivers/Kconfig and the rest was in in drivers/xyz/Konfig. Now, all of the driver configuration is consolitated in the latter. 2. Second, this commit correct numerous serious errors introduced in a previous reorganization of the driver Kconfig files. This was first noted by Nicholas Chin in PR270 for the case of the drivers/i2c/Kconfig but some examination indicates that the error was introduced into several other Kconfig files as well. The nature of the introduced error was basically this: - Nothing must intervene between the menuconfig selection and the following conditional configuration otpions. - A previous PR erroneously introduced unconditional options between the menuconfig and the following confditional logic, thus corrupting the driver menus. This error was easy to make because the driver Kconfig files were not well modularized. Making them fully self-contained should eliminate this kind of error in the future.
151 lines
3.5 KiB
Plaintext
151 lines
3.5 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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# MMC/SD-related platform capabilities
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config ARCH_HAVE_SDIO
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bool
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default n
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config ARCH_HAVE_SDIOWAIT_WRCOMPLETE
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bool
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default n
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config ARCH_HAVE_SDIO_PREFLIGHT
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bool
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default n
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config ARCH_HAVE_SDIO_DELAYED_INVLDT
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bool
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default n
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menuconfig MMCSD
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bool "MMC/SD Driver Support"
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default n
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---help---
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Support for MMC/SD block drivers. MMC/SD block drivers based on
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SPI and SDIO/MCI interfaces are supported. See include/nuttx/mmcsd.h
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and include/nuttx/sdio.h for further information.
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if MMCSD
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config MMCSD_NSLOTS
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int "Number of MMC/SD slots"
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default 1
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---help---
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Number of MMC/SD slots supported by the
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driver. Default is one.
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config MMCSD_READONLY
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bool "Disable MMC/SD write access"
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default n
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---help---
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Provide read-only access. Default is
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Read/Write
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config MMCSD_MULTIBLOCK_DISABLE
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bool "Disable MMC/SD multiblock transfer"
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default n
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---help---
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Use only the single block transfer method.
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This setting is used to work around buggy SDIO drivers that cannot handle
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multiple block transfers.
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config MMCSD_MMCSUPPORT
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bool "MMC cards support"
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default y
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---help---
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Enable support for MMC cards
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config MMCSD_HAVE_CARDDETECT
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bool "MMC/SD card detect pin"
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default y
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---help---
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SDIO driver card present detection is supported.
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config MMCSD_HAVE_WRITEPROTECT
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bool "MMC/SD write protect pin"
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default y
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---help---
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SDIO driver write protection detection is supported.
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config MMCSD_SPI
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bool "MMC/SD SPI transfer support"
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default y
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depends on SPI
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if MMCSD_SPI
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config MMCSD_SPICLOCK
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int "MMC/SD maximum SPI clock"
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default 20000000
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depends on MMCSD_SPI
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---help---
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Maximum SPI clock to drive MMC/SD card.
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Default is 20MHz.
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config MMCSD_SPIMODE
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int "MMC/SD SPI mode"
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default 0
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---help---
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Should be mode 0. However, sometimes this is useful for experimenting.
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endif
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config SDIO_DMA
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bool
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default n
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config MMCSD_SDIO
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bool "MMC/SD SDIO transfer support"
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default n
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depends on ARCH_HAVE_SDIO
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if MMCSD_SDIO
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config SDIO_MUXBUS
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bool "SDIO bus share support"
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default n
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---help---
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Set this SDIO interface if the SDIO interface
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or hardware resources are shared with other drivers.
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config MMCSD_SDIOWAIT_WRCOMPLETE
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bool "Use D0 Busy to detect Write Complete"
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default n
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depends on ARCH_HAVE_SDIOWAIT_WRCOMPLETE
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---help---
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SDIO driver will use D0 Busy signalling to detect Write Complete.
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This option when selected, will enable the MMCSD driver to use the
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underlying SDIO drivers implementation of the SD specification's
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D0 Busy signalling to detect Write Complete. This will avoid
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potentially very long (600Ms+) busy waiting in the MMCSD driver.
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To implement D0 Busy signalling, the underlying driver must
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be capable of switching the D0 GPIO to be a rising edge sensitive
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interrupt pin. It must then, condition that pin to detect the rising edge
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on receipt of SDWAIT_WRCOMPLETE in the SDIO_WAITENABLE call and
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return it back to regular SDIO mode, when either the ISR fires or pin is
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found to be high in the SDIO_EVENTWAIT call.
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config SDIO_WIDTH_D1_ONLY
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bool "SDIO 1-bit transfer"
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default n
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---help---
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Select 1-bit transfer mode. Default:
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4-bit transfer mode.
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config SDIO_BLOCKSETUP
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bool "SDIO block setup"
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default n
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---help---
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Some hardware needs to be informed of the selected blocksize and the
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number of blocks. Others just work on the byte stream. This option
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enables the block setup method in the SDIO vtable.
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endif
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endif # MMCSD
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