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/* bspclean.c
*
* Milkymist shutdown routine
*
* COPYRIGHT (c) 2010 Sebastien Bourdeauducq
*
* 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.
*/
#include <bsp/bootcard.h>
#include "../include/system_conf.h"
static void reboot(void)
{
/* Writing to CSR_SYSTEM_ID causes a system reset */
MM_WRITE(MM_SYSTEM_ID, 1);
}
static void icap_write(int val, unsigned int w)
{
while (!(MM_READ(MM_ICAP) & ICAP_READY));
if (!val)
w |= ICAP_CE|ICAP_WRITE;
MM_WRITE(MM_ICAP, w);
}
static void reconf(void)
{
icap_write(0, 0xffff); /* dummy word */
icap_write(0, 0xffff); /* dummy word */
icap_write(0, 0xffff); /* dummy word */
icap_write(0, 0xffff); /* dummy word */
icap_write(1, 0xaa99); /* sync word part 1 */
icap_write(1, 0x5566); /* sync word part 2 */
icap_write(1, 0x30a1); /* write to command register */
icap_write(1, 0x0000); /* null command */
icap_write(1, 0x30a1); /* write to command register */
icap_write(1, 0x000e); /* reboot command */
icap_write(1, 0x2000); /* NOP */
icap_write(1, 0x2000); /* NOP */
icap_write(1, 0x2000); /* NOP */
icap_write(1, 0x2000); /* NOP */
icap_write(0, 0x1111); /* NULL */
icap_write(0, 0xffff); /* dummy word */
}
void bsp_fatal_extension(
rtems_fatal_source source,
bool is_internal,
rtems_fatal_code error
)
{
if (source == RTEMS_FATAL_SOURCE_EXIT && error)
reconf();
else
reboot();
}
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