TM4C: Add SYSCONTROL register defintion header file
Make sure that every reference to LM4F has corresponding logic for TM4C
Add basic board support for the TM4C123G Launchpad
TM4C: A few more changes to get a clean compilation
SAM4E-EK:  Add basic board support
Refresh spark configurations
SAM4E-EK: Purely cosmetic updates
TM4C: Fix typos in memory map reported by Daniel Pereira de Carvalho
SAM4E: Various bring-up fixes.  NSH now works
SAM4E:  Add support for the Cortex-M Cache Control block
SAM4E-EK:  Add an EMAC driver.  Initial commit is just a quick port of the SAMA5D3 EMAC driver
Documentation update
SAM4E: Fix EMAC pin configuration.  Driver is basically functionaly now.  SAM4E-EK NSH configuration now has networking enabled by default
Backport SPI driver enhancements from SAMA5 to SAM3/4
SAM4E-EK:  Add support for the SAM4E-EK AT25 serial flash
SAM3/4:  Integrate the SPI DMA interface with the existing code.  Does not yet work.
SAM3/4 DMA fixes in general for SPI DMA in particular
SAM3/4:  Fix debug logic in DMAC that was causing the loss of interrupts
SAM4E-EK:  NSH configuration now has DMA-based SPI and AT25 Serial FLASH suported enabled by default
nanosleep():  Was not re-enabling interrupts.  Fix from Jason Jiang