root/loader/ixus75_sd750/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_copy_and_reset;
   8 extern long blob_chdk_core_size;
   9 // extern long blob_copy_and_reset_size;
  13 void __attribute__((noreturn)) my_restart() 
  14 {
  15   {
  16   // char *dst = dst_void;
  17   // const char *src = src_void;
  18   long *dst = (long*)MEMISOSTART;
  19   const long *src = blob_chdk_core;
  20   long length = (blob_chdk_core_size + 3) >> 2;
core_copy(src, dst, length);
  24 }
  26     asm volatile(
  27          "MRS     R1, CPSR\n"
  28          "BIC     R1, R1, #0x3F\n"
  29          "ORR     R1, R1, #0xD3\n"
  30          "MSR     CPSR_cf, R1\n"
  31          "LDR     R2, =0xC0200000\n" //found in "aRestartCalled"
  32          "MOV     R1, #0xFFFFFFFF\n"
  33    "STR     R1, [R2,#0x10C]\n"
  34    "STR     R1, [R2,#0xC]\n"
  35    "STR     R1, [R2,#0x1C]\n"
  36    "STR     R1, [R2,#0x2C]\n"
  37    "STR     R1, [R2,#0x3C]\n"
  38    "STR     R1, [R2,#0x4C]\n"
  39    "STR     R1, [R2,#0x5C]\n"
  40    "STR     R1, [R2,#0x6C]\n"
  41    "STR     R1, [R2,#0x7C]\n"
  42    "STR     R1, [R2,#0x8C]\n"
  43    "STR     R1, [R2,#0x9C]\n"
  44    "STR     R1, [R2,#0xAC]\n"
  45    "STR     R1, [R2,#0xBC]\n"
  46    "STR     R1, [R2,#0xCC]\n"
  47    "STR     R1, [R2,#0xDC]\n"
  48    "STR     R1, [R2,#0xEC]\n"
  49    "STR     R1, [R2,#0xFC]\n"
  51    "MOV     R1, #0x78\n"
  52    "MCR     p15, 0, R1,c1,c0\n"
  53    "MOV     R1, #0\n"
  54    "MCR     p15, 0, R1,c7,c10, 4\n"
  55    "MCR     p15, 0, R1,c7,c5\n"
  56    "MCR     p15, 0, R1,c7,c6\n"
  57    "MOV     R2, #0x40000000\n"
  58    "ORR     R1, R2, #6\n"
  59    "MCR     p15, 0, R1,c9,c1\n"
  60    "ORR     R1, R1, #6\n"
  61    "MCR     p15, 0, R1,c9,c1, 1\n"
  62    "MRC     p15, 0, R1,c1,c0\n"
  63    "ORR     R1, R1, #0x50000\n"
  64    "MCR     p15, 0, R1,c1,c0\n"
  65    "MOV     R3, #0xFF0\n"
  66    "LDR     R1, =0x12345678\n"
  68    "ADD     R3, R3, #0x4000000C\n"
  69    "STR     R1, [R3]\n"
  71    "MOV     SP, #0x1900\n" // 0x2000000
  72    "MOV     LR, PC\n"
  73    "MOV     PC, %0\n"
  74     : : "r"(MEMISOSTART) : "memory","r1","r2","r3");
  76     while(1);
  77 }
  79 // #define LED_PR 0xc02200C0
  80 // 
  81 // static void __attribute__((noreturn)) shutdown()
  82 // {
  83 //     volatile long *p = (void*)0xc02200a0;
  84 //         
  85 //     asm(
  86 //          "MRS     R1, CPSR\n"
  87 //          "AND     R0, R1, #0x80\n"
  88 //          "ORR     R1, R1, #0x80\n"
  89 //          "MSR     CPSR_cf, R1\n"
  90 //          :::"r1","r0");
  91 //         
  92 //     *p = 0x44;
  93 // 
  94 //     while(1);
  95 // }
  96 // 
  97 // 
  98 // static void __attribute__((noreturn)) panic(int cnt)
  99 // {
 100 //      volatile long *p=(void*)LED_PR;
 101 //      int i;
 102 // 
 103 //      for(;cnt>0;cnt--){
 104 //              p[0]=0x46;
 105 // 
 106 //              for(i=0;i<0x200000;i++){
 107 //                      asm ("nop\n");
 108 //                      asm ("nop\n");
 109 //              }
 110 //              p[0]=0x44;
 111 //              for(i=0;i<0x200000;i++){
 112 //                      asm ("nop\n");
 113 //                      asm ("nop\n");
 114 //              }
 115 //      }
 116 //      shutdown();
 117 // }