forked from Imagelibrary/rtems
002c6067ba
Mark bsp_reset() as no-return. Use default BSP fatal handler in lm32 and m68k BSPs. Remove empty bsp_reset() implementation. Update #5067.
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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* Milkymist shutdown routine
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*/
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/*
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* COPYRIGHT (c) 2010 Sebastien Bourdeauducq
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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#include "../include/system_conf.h"
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static void reboot(void)
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{
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/* Writing to CSR_SYSTEM_ID causes a system reset */
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MM_WRITE(MM_SYSTEM_ID, 1);
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}
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static void icap_write(int val, unsigned int w)
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{
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while (!(MM_READ(MM_ICAP) & ICAP_READY));
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if (!val)
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w |= ICAP_CE|ICAP_WRITE;
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MM_WRITE(MM_ICAP, w);
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}
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static void reconf(void)
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{
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icap_write(0, 0xffff); /* dummy word */
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icap_write(0, 0xffff); /* dummy word */
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icap_write(0, 0xffff); /* dummy word */
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icap_write(0, 0xffff); /* dummy word */
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icap_write(1, 0xaa99); /* sync word part 1 */
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icap_write(1, 0x5566); /* sync word part 2 */
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icap_write(1, 0x30a1); /* write to command register */
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icap_write(1, 0x0000); /* null command */
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icap_write(1, 0x30a1); /* write to command register */
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icap_write(1, 0x000e); /* reboot command */
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icap_write(1, 0x2000); /* NOP */
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icap_write(1, 0x2000); /* NOP */
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icap_write(1, 0x2000); /* NOP */
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icap_write(1, 0x2000); /* NOP */
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icap_write(0, 0x1111); /* NULL */
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icap_write(0, 0xffff); /* dummy word */
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}
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void bsp_reset( rtems_fatal_source source, rtems_fatal_code code )
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{
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if (source == RTEMS_FATAL_SOURCE_EXIT && code)
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reconf();
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else
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reboot();
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RTEMS_UNREACHABLE();
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}
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