shared/start/bootcard.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSBSPsSharedStartup
0007  */
0008
0009 /*
0010  *  COPYRIGHT (c) 1989-2014.
0011  *  On-Line Applications Research Corporation (OAR).
0012  *
0013  * Redistribution and use in source and binary forms, with or without
0014  * modification, are permitted provided that the following conditions
0015  * are met:
0016  * 1. Redistributions of source code must retain the above copyright
0017  *    notice, this list of conditions and the following disclaimer.
0018  * 2. Redistributions in binary form must reproduce the above copyright
0019  *    notice, this list of conditions and the following disclaimer in the
0020  *    documentation and/or other materials provided with the distribution.
0021  *
0022  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0023  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0024  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0025  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0026  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0027  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0028  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0029  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0030  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0031  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0032  * POSSIBILITY OF SUCH DAMAGE.
0033  */
0034
0035 #include <bsp/bootcard.h>
0036
0037 #include <rtems.h>
0038 #include <rtems/sysinit.h>
0039
0040 /*
0041  *  At most a single pointer to the cmdline for those target
0042  *  short on memory and not supporting a command line.
0043  */
0044 const char *bsp_boot_cmdline;
0045
0046 RTEMS_SYSINIT_ITEM(
0047   bsp_start,
0048   RTEMS_SYSINIT_BSP_START,
0049   RTEMS_SYSINIT_ORDER_MIDDLE
0050 );
0051
0052 /*
0053  *  This is the initialization framework routine that weaves together
0054  *  calls to RTEMS and the BSP in the proper sequence to initialize
0055  *  the system while maximizing shared code and keeping BSP code in C
0056  *  as much as possible.
0057  */
0058 void boot_card(
0059   const char *cmdline
0060 )
0061 {
0062   ISR_Level bsp_isr_level;
0063
0064   /*
0065    * Make sure interrupts are disabled.  Directly use the CPU port API to allow
0066    * tracing of the higher level interrupt disable/enable routines, e.g.
0067    * _ISR_Local_disable() and _ISR_Local_enable().
0068    */
0069   _CPU_ISR_Disable( bsp_isr_level );
0070   (void) bsp_isr_level;
0071
0072   bsp_boot_cmdline = cmdline;
0073
0074   rtems_initialize_executive();
0075
0076   /***************************************************************
0077    ***************************************************************
0078    *  APPLICATION RUNS NOW!!!  We will not return to here!!!     *
0079    ***************************************************************
0080    ***************************************************************/
0081 }