root/loader/a800/main.c

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DEFINITIONS

This source file includes following definitions.
  1. my_restart

   1 #include "../generic/check_compat.c"
   2 
   3 // static void __attribute__((noreturn)) shutdown();
   4 // static void __attribute__((noreturn)) panic(int cnt);
   5 
   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;
  10 
  11 
  12 
  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;
  21 
  22   core_copy(src, dst, length);
  23 
  24 }
  25 
  26     asm volatile(
  27         "LDR     R1, =0xC0200000\n"
  28         "MVN     R0, #0\n"
  29         "STR     R0, [R1,#0x10C]\n"
  30         "STR     R0, [R1,#0xC]\n"
  31         "STR     R0, [R1,#0x1C]\n"
  32         "STR     R0, [R1,#0x2C]\n"
  33         "STR     R0, [R1,#0x3C]\n"
  34         "STR     R0, [R1,#0x4C]\n"
  35         "STR     R0, [R1,#0x5C]\n"
  36         "STR     R0, [R1,#0x6C]\n"
  37         "STR     R0, [R1,#0x7C]\n"
  38         "STR     R0, [R1,#0x8C]\n"
  39         "STR     R0, [R1,#0x9C]\n"
  40         "STR     R0, [R1,#0xAC]\n"
  41         "STR     R0, [R1,#0xBC]\n"
  42         "STR     R0, [R1,#0xCC]\n"
  43         "STR     R0, [R1,#0xDC]\n"
  44         "STR     R0, [R1,#0xEC]\n"
  45     "CMP     R4, #7\n"
  46     "STR     R0, [R1,#0xFC]\n"
  47         //"LDMEQFD SP!, {R4,PC}\n"
  48         "MOV     R0, #0x78\n"
  49         "MCR     p15, 0, R0,c1,c0\n"
  50         "MOV     R0, #0\n"
  51         "MCR     p15, 0, R0,c7,c10, 4\n"
  52         "MCR     p15, 0, R0,c7,c5\n"
  53         "MCR     p15, 0, R0,c7,c6\n"
  54         "MOV     R0, #0x40000006\n"
  55         "MCR     p15, 0, R0,c9,c1\n"
  56         "MCR     p15, 0, R0,c9,c1, 1\n"
  57         "MRC     p15, 0, R0,c1,c0\n"
  58         "ORR     R0, R0, #0x50000\n"
  59         "MCR     p15, 0, R0,c1,c0\n"
  60 
  61         "LDR     R0, =0x12345678\n"
  62         "MOV     R1, #0x40000000\n"
  63         "STR     R0, [R1,#0xFFC]\n"
  64 
  65         //"LDR     R0, =0xFFC00000\n"  //original jump-vector
  66     "MOV     R0, %0\n"                          //new jump-vector
  67     "LDMFD   SP!, {R4,LR}\n"
  68     "BX      R0\n"
  69         : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
  70         );
  71     while(1);
  72 }
  73 
  74 // #define LED_PR 0xc0220088   //vide entry.S
  75 // 
  76 // static void __attribute__((noreturn)) shutdown()
  77 // {
  78 //     volatile long *p = (void*)0xc02200a0;
  79 //         
  80 //     asm(
  81 //          "MRS     R1, CPSR\n"
  82 //          "AND     R0, R1, #0x80\n"
  83 //          "ORR     R1, R1, #0x80\n"
  84 //          "MSR     CPSR_cf, R1\n"
  85 //          :::"r1","r0");
  86 //         
  87 //     *p = 0x44;
  88 // 
  89 //     while(1);
  90 // }
  91 // 
  92 // 
  93 // static void __attribute__((noreturn)) panic(int cnt)
  94 // {
  95 //      volatile long *p=(void*)LED_PR;
  96 //      int i;
  97 // 
  98 //      for(;cnt>0;cnt--){
  99 //              p[0]=0x46;
 100 // 
 101 //              for(i=0;i<0x200000;i++){
 102 //                      asm ("nop\n");
 103 //                      asm ("nop\n");
 104 //              }
 105 //              p[0]=0x44;
 106 //              for(i=0;i<0x200000;i++){
 107 //                      asm ("nop\n");
 108 //                      asm ("nop\n");
 109 //              }
 110 //      }
 111 //      shutdown();
 112 // }

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