c58da9fbc3
IMPORTANT: this change has a docs/UPDATING entry! This rename is unfortunately necessary because NetBSD has decided to create its own service(8) utility, and we will want to import theirs as well. The two can obviously not coexist. Also move ours from /bin to /sbin, as it is a superuser-only utility. Change-Id: Ic6e46ffb3a84b4747d2fdcb0d74e62dbea065039
24 lines
970 B
Plaintext
24 lines
970 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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# minix-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.
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