nuttx/boards/arm/eoss3/quickfeather/src/eoss3_appinit.c
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

67 lines
2.7 KiB
C

/****************************************************************************
* boards/arm/eoss3/quickfeather/src/eoss3_appinit.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/board.h>
#ifdef CONFIG_LIB_BOARDCTL
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
return OK;
}
#endif /* CONFIG_LIB_BOARDCTL */