niosv/niosvc10lp/bspstart.c

0001 /*
0002  * SPDX-License-Identifier: BSD-2-Clause
0003  *
0004  * Copyright (C) 2024 Kevin Kirspel
0005  *
0006  * Redistribution and use in source and binary forms, with or without
0007  * modification, are permitted provided that the following conditions
0008  * are met:
0009  * 1. Redistributions of source code must retain the above copyright
0010  *    notice, this list of conditions and the following disclaimer.
0011  * 2. Redistributions in binary form must reproduce the above copyright
0012  *    notice, this list of conditions and the following disclaimer in the
0013  *    documentation and/or other materials provided with the distribution.
0014  *
0015  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0016  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0017  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0018  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0019  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0020  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0021  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0024  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0025  * POSSIBILITY OF SUCH DAMAGE.
0026  */
0027
0028 #include <bsp.h>
0029 #include <bsp/bootcard.h>
0030 #include <bsp/fatal.h>
0031 #include <bsp/irq-generic.h>
0032 #include <bsp/niosv.h>
0033 #include <rtems/sysinit.h>
0034
0035 static uint32_t niosv_core_freq;
0036
0037 static uint32_t get_core_frequency(void)
0038 {
0039   return ALT_CPU_FREQ;
0040 }
0041
0042 uint32_t niosv_get_core_frequency(void)
0043 {
0044   return niosv_core_freq;
0045 }
0046
0047 void bsp_start(void)
0048 {
0049   /* let user know we have started RTEMS */
0050   LED_PIO_REGS->outclear = 0x4;
0051
0052   bsp_interrupt_initialize();
0053   niosv_core_freq = get_core_frequency();
0054 }
0055
0056 static void bsp_predriver_hook( void )
0057 {
0058   epcq_initialize();
0059 }
0060
0061 static void bsp_postdriver_hook(void)
0062 {
0063   /* TODO: add any post driver configuration functions */
0064 }
0065
0066 RTEMS_SYSINIT_ITEM(
0067   bsp_predriver_hook,
0068   RTEMS_SYSINIT_DEVICE_DRIVERS,
0069   RTEMS_SYSINIT_ORDER_FIRST
0070 );
0071
0072 RTEMS_SYSINIT_ITEM(
0073   bsp_postdriver_hook,
0074   RTEMS_SYSINIT_DEVICE_DRIVERS,
0075   RTEMS_SYSINIT_ORDER_LAST
0076 );