9a248205b3
This is required to support chips which use SDIO for signaling/ communication but do not implement the various card enumeration registers as required for full SD / SDIO cards. mmc: sdio: Fix bug where we're freeing the CIS tables we never allocated when using EMBEDDED_SDIO mmc: Add max_blksize to embedded SDIO data Signed-off-by: San Mehat <san@google.com>
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
#
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# MMC core configuration
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#
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config MMC_UNSAFE_RESUME
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bool "Assume MMC/SD cards are non-removable (DANGEROUS)"
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help
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If you say Y here, the MMC layer will assume that all cards
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stayed in their respective slots during the suspend. The
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normal behaviour is to remove them at suspend and
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redetecting them at resume. Breaking this assumption will
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in most cases result in data corruption.
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This option is usually just for embedded systems which use
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a MMC/SD card for rootfs. Most people should say N here.
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This option sets a default which can be overridden by the
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module parameter "removable=0" or "removable=1".
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config MMC_CLKGATE
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bool "MMC host clock gating (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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help
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This will attempt to aggressively gate the clock to the MMC card.
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This is done to save power due to gating off the logic and bus
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noise when the MMC card is not in use. Your host driver has to
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support handling this in order for it to be of any use.
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If unsure, say N.
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config MMC_EMBEDDED_SDIO
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boolean "MMC embedded SDIO device support (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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help
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If you say Y here, support will be added for embedded SDIO
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devices which do not contain the necessary enumeration
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support in hardware to be properly detected.
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config MMC_PARANOID_SD_INIT
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bool "Enable paranoid SD card initialization (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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help
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If you say Y here, the MMC layer will be extra paranoid
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about re-trying SD init requests. This can be a useful
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work-around for buggy controllers and hardware. Enable
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if you are experiencing issues with SD detection.
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