nuttx/arch/arm
Brennan Ashton aef6f4ae09 Add initial support for the QuickLogic EOS S3
The QuickFeather board added as an initial target.
These featrues are minimally implemented:
  * Clock Configuration -- All clocking registers are defined and
    configuration is used to setup the HSO, M4 Core, and M4 Perif
    clocks.  Additionally some clock debugging is stubbed for
    bringing out clock paths to IO pins.

  * UART -- The lowputc as well as the serial driver is implemnted
    for the single UART device. Currently the configuration is
    hard coded, but uses the proper interfaces to later fill in.

  * SysTick -- The system tick timer is implemented and clocking
    properly. Tickless mode is not yet implemented.

  * Interrupts -- The interrupt system is implemented and verified
    using the UART and SysTick systems.

  * GPIO -- GPIO and IOMUX systems are defined and implemented.
    This is verified using the UART as well as the Arch LED
    system.  The GPIO interupt system is stubbed out but not
    implemented.

  * Arch LEDS -- The blue LED as part of the RGB LED is configured
    and attached to the Arch LED system.  This indicates the device
    coming online as well as when a hardfault is triggered.

Applications and Testing:
  * There is a nsh configuration implemented that includes debug
    features as well as the ostest, getprime, and mem test.
    All of these have been run and verified.

Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
2020-07-15 11:25:30 +01:00
..
include Add initial support for the QuickLogic EOS S3 2020-07-15 11:25:30 +01:00
src Add initial support for the QuickLogic EOS S3 2020-07-15 11:25:30 +01:00
Kconfig Add initial support for the QuickLogic EOS S3 2020-07-15 11:25:30 +01:00