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/*
* 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.
*
* This is where the real hardware setup is done. A minimal stack
* has been provided by the start.S code. No normal C or RTEMS
* functions can be called from here.
*/
#include <stdint.h>
extern void _wr_vbr(uint32_t);
extern int boot_card(int, char **, char **);
extern long _d0_reset,_d1_reset,_M68kSpuriousInterruptCount;
/*
* From linkcmds
*/
extern uint8_t _VBR[];
extern uint8_t _INTERRUPT_VECTOR[];
extern uint8_t _clear_start[];
extern uint8_t _clear_end[];
extern uint8_t _data_src_start[];
extern uint8_t _data_dest_start[];
extern uint8_t _data_dest_end[];
void Init5225x(void)
{
register uint32_t i;
register uint32_t *dp, *sp;
register uint8_t *dbp, *sbp;
/*
* Copy the vector table to RAM
*/
if (_VBR != _INTERRUPT_VECTOR) {
sp = (uint32_t *) _INTERRUPT_VECTOR;
dp = (uint32_t *) _VBR;
for (i = 0; i < 256; i++) {
*dp++ = *sp++;
}
}
/*
* Move initialized data from ROM to RAM.
*/
if (_data_src_start != _data_dest_start) {
dbp = (uint8_t *) _data_dest_start;
sbp = (uint8_t *) _data_src_start;
i = _data_dest_end - _data_dest_start;
while (i--)
*dbp++ = *sbp++;
}
asm __volatile__ ("move.l %%d5,%0\n\t":"=r" (_d0_reset));
asm __volatile__ ("move.l %%d6,%0\n\t":"=r" (_d1_reset));
/*
* Zero uninitialized data
*/
if (_clear_start != _clear_end) {
sbp = _clear_start;
dbp = _clear_end;
i = dbp - sbp;
while (i--)
*sbp++ = 0;
}
//_wr_vbr((uint32_t) _VBR);
asm volatile("move.l %0,%%d7;movec %%d7,%%vbr\n\t"::"i"(_VBR): "cc");
/*
* We have to call some kind of RTEMS function here!
*/
boot_card(0, 0, 0);
for (;;) ;
}
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