root/loader/ixus700_sd500/main.c

DEFINITIONS

1. my_restart

   1 #include "../generic/check_compat.c"
   3 //static void __attribute__((noreturn)) shutdown();
   4 //static void __attribute__((noreturn)) panic(int cnt);
   6 extern long *blob_chdk_core;
   7 extern long blob_chdk_core_size;
   9 void __attribute__((noreturn)) my_restart() 
  10 {
  11     {
  12         long *dst = (long*)MEMISOSTART;
  13         const long *src = blob_chdk_core;
  14         long length = (blob_chdk_core_size + 3) >> 2;
core_copy(src, dst, length);
  18     }
  20     asm volatile(
  21         "MRS     R1, CPSR\n"
  22         "BIC     R1, R1, #0x3F\n"
  23         "ORR     R1, R1, #0xD3\n"
  24         "MSR     CPSR_cf, R1\n"
  26         "LDR     R2, =0xC0200000\n"
  27         "MOV     R1, #0xFFFFFFFF\n"
  28         "STR     R1, [R2,#0x10C]\n"
  29         "STR     R1, [R2,#0xC]\n"
  30         "STR     R1, [R2,#0x1C]\n"
  31         "STR     R1, [R2,#0x2C]\n"
  32         "STR     R1, [R2,#0x3C]\n"
  33         "STR     R1, [R2,#0x4C]\n"
  34         "STR     R1, [R2,#0x5C]\n"
  35         "STR     R1, [R2,#0x6C]\n"
  36         "STR     R1, [R2,#0x7C]\n"
  37         "STR     R1, [R2,#0x8C]\n"
  38         "STR     R1, [R2,#0x9C]\n"
  39         "STR     R1, [R2,#0xAC]\n"
  40         "STR     R1, [R2,#0xBC]\n"
  41         "STR     R1, [R2,#0xCC]\n"
  42         "STR     R1, [R2,#0xDC]\n"
  43         "STR     R1, [R2,#0xEC]\n"
  44         "STR     R1, [R2,#0xFC]\n"
  46 //#if 0
  47         "MOV     R1, #0x78\n"
  48         "MCR     p15, 0, R1,c1,c0\n"
  49         "MOV     R1, #0\n"
  50         "MCR     p15, 0, R1,c7,c10, 4\n"
  51         "MCR     p15, 0, R1,c7,c5\n"
  52         "MCR     p15, 0, R1,c7,c6\n"
  53         "MOV     R2, #0x40000000\n"
  54         "ORR     R1, R2, #6\n"
  55         "MCR     p15, 0, R1,c9,c1\n"
  56         "ORR     R1, R1, #6\n"
  57         "MCR     p15, 0, R1,c9,c1, 1\n"
  58         "MRC     p15, 0, R1,c1,c0\n"
  59         "ORR     R1, R1, #0x50000\n"
  60         "MCR     p15, 0, R1,c1,c0\n"
  62         "LDR     R2, =0x12345678\n"
  63         "MOV     R3, #0xFF0\n"
  64         "ADD     R3, R3, #0x4000000C\n"
  65         "STR     R2, [R3]\n"
  66 //#endif
  68         "MOV     SP, #0x1900\n"
  69         "MOV     LR, PC\n"
  70         "MOV     PC, %0\n"
  71     : : "r"(MEMISOSTART) : "memory","r1","r2","r3");
  73     while(1);
  74 }
  76 //#define LED_PR 0xc0220088
  78 //static void __attribute__((noreturn)) shutdown()
  79 //{
  80 //    volatile long *p = (void*)0xc022002c;
  81 //        
  82 //    asm(
  83 //         "MRS     R1, CPSR\n"
  84 //         "AND     R0, R1, #0x80\n"
  85 //         "ORR     R1, R1, #0x80\n"
  86 //         "MSR     CPSR_cf, R1\n"
  87 //         :::"r1","r0");
  88 //        
  89 //    *p = 0x44;
  90 //
  91 //    while(1);
  92 //}
  94 //static void __attribute__((noreturn)) panic(int cnt)
  95 //{
  96 //      volatile long *p=(void*)LED_PR;
  97 //      int i;
  98 //
  99 //      for(;cnt>0;cnt--){
 100 //              p[0]=0x46;
 101 //
 102 //              for(i=0;i<0x200000;i++){
 103 //                      asm ("nop\n");
 104 //                      asm ("nop\n");
 105 //              }
 106 //              p[0]=0x44;
 107 //              for(i=0;i<0x200000;i++){
 108 //                      asm ("nop\n");
 109 //                      asm ("nop\n");
 110 //              }
 111 //      }
 112 //      shutdown();
 113 //}