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/* bsp_start()
*
* This routine starts the application. It includes application,
* board, and monitor specific initialization and configuration.
* The generic CPU dependent initialization has been performed
* before this routine is invoked.
*
* INPUT: NONE
*
* OUTPUT: NONE
*
* Author: Thomas Doerfler <td@imd.m.isar.de>
* IMD Ingenieurbuero fuer Microcomputertechnik
*
* COPYRIGHT (c) 1998 by IMD
*
* Changes from IMD are covered by the original distributions terms.
* This file has been derived from the papyrus BSP:
*
* Author: Andrew Bray <andy@i-cubed.co.uk>
*
* COPYRIGHT (c) 1995 by i-cubed ltd.
*
* To anyone who acknowledges that this file is provided "AS IS"
* without any express or implied warranty:
* permission to use, copy, modify, and distribute this file
* for any purpose is hereby granted without fee, provided that
* the above copyright notice and this notice appears in all
* copies, and that the name of i-cubed limited not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* i-cubed limited makes no representations about the suitability
* of this software for any purpose.
*
* Modifications for spooling console driver and control of memory layout
* with linker command file by
* Thomas Doerfler <td@imd.m.isar.de>
* for these modifications:
* COPYRIGHT (c) 1997 by IMD, Puchheim, Germany.
*
* To anyone who acknowledges that this file is provided "AS IS"
* without any express or implied warranty:
* permission to use, copy, modify, and distribute this file
* for any purpose is hereby granted without fee, provided that
* the above copyright notice and this notice appears in all
* copies. IMD makes no representations about the suitability
* of this software for any purpose.
*
* Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c:
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
*
* Modifications for PPC405GP by Dennis Ehlin
*/
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/irq-generic.h>
#include <bsp/bootcard.h>
#include <bsp/linker-symbols.h>
#include <libcpu/powerpc-utility.h>
#include RTEMS_XPARAMETERS_H
/* Symbols defined in linker command file */
LINKER_SYMBOL(virtex_exc_vector_base);
/*
* Driver configuration parameters
*/
uint32_t bsp_time_base_frequency = XPAR_CPU_PPC405_CORE_CLOCK_FREQ_HZ;
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
/*
* Get CPU identification dynamically. Note that the get_ppc_cpu_type()
* function store the result in global variables
* so that it can be used latter...
*/
get_ppc_cpu_type();
get_ppc_cpu_revision();
/*
* Initialize default raw exception handlers.
*/
ppc_exc_initialize_with_vector_base(
PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
(uintptr_t) bsp_section_work_begin,
rtems_configuration_get_interrupt_stack_size(),
virtex_exc_vector_base
);
__asm__ volatile ("mtevpr %0" : : "r" (virtex_exc_vector_base));
bsp_interrupt_initialize();
}
void _BSP_Fatal_error(unsigned int v)
{
rtems_interrupt_level level;
rtems_interrupt_disable(level);
(void) level;
while (true) {
/* Do nothing */
}
}
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