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[/] [sd_card_controller/] [trunk/] [README.md] - Diff between revs 9 and 10

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This u-boot project contains driver for Wishbone SD Card Controller IP Core
This u-boot project contains driver for Wishbone SD Card Controller IP Core
and can be configured for de0_nano board (with custom made expansion board).
and can be configured for de0_nano board (with custom made expansion board).
 
 
Also in the plan is the driver for Linux. The initial work can be found at:
Also in the plan is the driver for Linux. The initial work can be found at:
 
 
https://bitbucket.org/rozpruwacz/linux-openrisc
https://github.com/mczerski/linux - de0_nano branch
 
 
the driver is named ocsdc and is located in drivers/mmc/host directory.
the driver is named ocsdc and is located in drivers/mmc/host directory.
 
 
 
TODO:
 
-----
 
 
 
- top level testbench cleanup (sd_controller_top_tb.sv)
 
- rx/tx fifo treshold to do block transfers rather than many signle word transfers
 
- maybe one fifo rathen than two fifos (rx and tx) would suffice since the transfer
 
        between card and controller is always half-duplex
 
- read only and card detect signals support
 
- timeout watchdog for data transfers
 
 

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