23 lines
963 B
Plaintext
23 lines
963 B
Plaintext
The eMMC driver was designed to be linked to the existing MMC/SD block device
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driver (mmcblk.c).
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* Mini how-to
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On the BeagleBone Black, the block device files /dev/c1d* (major = 8) are free.
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The driver can use /dev/c1d0.
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# service up /service/emmc -dev /dev/c1d0
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* Programmed Input/Output
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The driver does not have support for DMA.
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* High capacity cards
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Data address for media =< 2GB is byte address, and data address for media > 2GB
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is sector (512B) address. The driver was designed to handle both address modes,
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but it was tested on a 2GB card.
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* References
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BeagleBone Black System Reference Manual, Revision A5.6.
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AM335x Sitara Processors Technical Reference Manual. Literature number: SPRUH73L
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Embedded MultiMediaCard Product Standard (MMCA, 4.41). Document number: JESD84-A441
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AM335x Sitara Processors Datasheet. Literature number: SPRS717F
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OMAP35x Applications Processor Technical Reference Manual. Literature number: SPRUF98X
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MINIX 3 MMC/SD source code. |