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/*
* This set of routines starts the application. It includes application,
* board, and monitor specific initialization and configuration.
* The generic CPU dependent initialization has been performed
* before any of these are invoked.
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* Modified for LEON3 BSP.
* COPYRIGHT (c) 2004.
* Gaisler Research.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/bspIo.h>
/*
* Tells us if data cache snooping is available
*/
int CPU_SPARC_HAS_SNOOPING;
/*
* set_snooping
*
* Read the data cache configuration register to determine if
* bus snooping is available. This is needed for some drivers so
* that they can select the most efficient copy routines.
*
*/
static inline int set_snooping(void)
{
int tmp;
asm(" lda [%1] 2, %0 "
: "=r"(tmp)
: "r"(0xC)
);
return (tmp >> 27) & 1;
}
/*
* bsp_start
*
* This routine does the bulk of the system initialization.
*/
void bsp_start( void )
{
CPU_SPARC_HAS_SNOOPING = set_snooping();
}
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