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/**
* @file
*
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _BSP_H
#define _BSP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <bspopts.h>
#include <bsp/default-initial-extension.h>
#include <rtems.h>
#include <rtems/iosupp.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
#include <libcpu/rm5231.h>
extern void WriteDisplay( char * string );
extern uint32_t mips_get_timer( void );
#define BSP_FEATURE_IRQ_EXTENSION
#define BSP_SHARED_HANDLER_SUPPORT 1
#define CPU_CLOCK_RATE_MHZ (200)
#define CLOCKS_PER_MICROSECOND ( CPU_CLOCK_RATE_MHZ ) /* equivalent to CPU clock speed in MHz */
/*
* Simple spin delay in microsecond units for device drivers.
* This is very dependent on the clock speed of the target.
*
* NOTE: This macro generates a warning like "integer constant out
* of range" which is safe to ignore. In 64 bit mode, unsigned32
* types are actually 64 bits long so that comparisons between
* unsigned32 types and pointers are valid. The warning is caused
* by code in the delay macro that is necessary for 64 bit mode.
*/
#define rtems_bsp_delay( microseconds ) \
{ \
uint32_t _end_clock = \
mips_get_timer() + microseconds * CLOCKS_PER_MICROSECOND; \
_end_clock %= 0x100000000; /* make sure result is 32 bits */ \
\
/* handle timer overflow, if necessary */ \
while ( _end_clock < mips_get_timer() ); \
\
while ( _end_clock > mips_get_timer() ); \
}
/* Constants */
#define RAM_START 0
#define RAM_END 0x100000
#ifdef __cplusplus
}
#endif
#endif /* __HURRICANE_BSP_h */
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