dd support for a USB keyboard as the NxConsole and text widget input.  Not fully functional as of this initial check-in.  Basic functionality is there, but there are conditions were the keyboard gets lost.

SAMA5 HSMCI: e-enable TX DMA and verify that DMA writes to the SD card are functional.  They are so now TX DMA is re-enabled in the driver.  This might affect the SAMA5D3 platforms where the TX DMA problem was found.  The SAMA4D3 and 4 use the same HSMCI driver.  Much has change since then and it is not surprising that DMA is now functional.  However, the has not be re-verified on the SAMA5D3 which has a different DMA controller.

Auto-mounter:  Fix state setting.  Not harmful other than it can cause a debug assertion to fire if you manually unmount the media before removing it which is, of course, what you are supposed to do.

SAMA5D HSMCI: Fix a problem on card insertion/removal callback handling.  Interrupts were being disable so that the callbacks occurred with interrupts disabled.  This resulted in loss of some interrupts and some not-so-good behaviors.  The solution is to perform all callbacks on the work thread unconditionally (2014-7-29).

SAMA5D HSMCI: Add method to do RX transfer without DMA.  The 8-byte SCR transfer was failing silently with the DMA transfer, leaving the SD card in single bit mode

The SAMA5D4-EK NSH and NxWM configurations now have the auto-mounter configured to automatically mount the FAT file system on HSMCI0 at /mnt/sdcard

Add support for an automounter that will automatically mount and unmount a file system a media is inserted and removed

SAMA5D4-EK: Add logic to disable the faulty PMIC.  This must be done with JP23 open.  It is perfomed only from the DRAMBOOT loader