source: rtems/bsps/arm/smdk2410/start/bspreset.c @ 9964895

Last change on this file since 9964895 was 9964895, checked in by Sebastian Huber <sebastian.huber@…>, on Apr 20, 2018 at 8:35:35 AM

bsps: Move startup files to bsps

Adjust build support files to new directory layout.

This patch is a part of the BSP source reorganization.

Update #3285.

  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  Copyright (c) 2002 by Jay Monkman <jtm@smoothsmoothie.com>
3 *
4 *  The license and distribution terms for this file may be
5 *  found in the file LICENSE in this distribution or at
6 *  http://www.rtems.org/license/LICENSE.
7 */
8
9#include <bsp.h>
10#include <bsp/bootcard.h>
11
12void bsp_reset(void)
13{
14#if ON_SKYEYE == 1
15  #define SKYEYE_MAGIC_ADDRESS (*(volatile unsigned int *)(0xb0000000))
16
17  SKYEYE_MAGIC_ADDRESS = 0xff;
18#else
19  /* TODO: This code was initially copied from the gp32 BSP. That BSP has
20   * been obsoleted and removed but this code may still benefit from being
21   * in a shared place.
22   */
23  rtems_interrupt_level level;
24
25  (void) level;
26  rtems_interrupt_disable(level);
27  /* disable mmu, invalide i-cache and call swi #4 */
28  __asm__ volatile(""
29    "mrc    p15,0,r0,c1,c0,0  \n"
30    "bic    r0,r0,#1          \n"
31    "mcr    p15,0,r0,c1,c0,0  \n"
32    "nop                      \n"
33    "nop                      \n"
34    "nop                      \n"
35    "nop                      \n"
36    "nop                      \n"
37    "mov    r0,#0             \n"
38    "MCR    p15,0,r0,c7,c5,0  \n"
39    "nop                      \n"
40    "nop                      \n"
41    "nop                      \n"
42    "nop                      \n"
43    "nop                      \n"
44    "swi    #4                "
45    :
46    :
47    : "r0"
48  );
49  /* we should be back in bios now */
50#endif
51}
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