root/loader/a3300/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 //a3300is found at FF83BF10
  27         asm volatile (
  28                  "LDR     R1, =0xC0200000\n"
  29                  "MVN     R0, #0\n"
  30                  "STR     R0, [R1,#0x10C]\n"
  31                  "STR     R0, [R1,#0xC]\n"
  32                  "STR     R0, [R1,#0x1C]\n"
  33                  "STR     R0, [R1,#0x2C]\n"
  34                  "STR     R0, [R1,#0x3C]\n"
  35                  "STR     R0, [R1,#0x4C]\n"
  36                  "STR     R0, [R1,#0x5C]\n"
  37                  "STR     R0, [R1,#0x6C]\n"
  38                  "STR     R0, [R1,#0x7C]\n"
  39                  "STR     R0, [R1,#0x8C]\n"
  40                  "STR     R0, [R1,#0x9C]\n"
  41                  "STR     R0, [R1,#0xAC]\n"
  42                  "STR     R0, [R1,#0xBC]\n"
  43                  "STR     R0, [R1,#0xCC]\n"
  44                  "STR     R0, [R1,#0xDC]\n"
  45                  "STR     R0, [R1,#0xEC]\n"
  46                  "CMP     R4, #7\n"
  47                  "STR     R0, [R1,#0xFC]\n"
  48                  "LDMEQFD SP!, {R4,PC}\n"
  49                  "MOV     R0, #0x78\n"
  50                  "MCR     p15, 0, R0,c1,c0\n"
  51                  "MOV     R0, #0\n"
  52                  "MCR     p15, 0, R0,c7,c10, 4\n"
  53                  "MCR     p15, 0, R0,c7,c5\n"
  54                  "MCR     p15, 0, R0,c7,c6\n"
  55                  "MOV     R0, #0x80000006\n"
  56                  "MCR     p15, 0, R0,c9,c1\n"
  57                  "MCR     p15, 0, R0,c9,c1, 1\n"
  58                  "MRC     p15, 0, R0,c1,c0\n"
  59                  "ORR     R0, R0, #0x50000\n"
  60                  "MCR     p15, 0, R0,c1,c0\n"
  61                  "LDR     R0, =0x12345678\n"
  62                  "MOV     R1, #0x80000000\n"
  63                  "STR     R0, [R1,#0xFFC]\n"
  64            //    "LDR     R0, =0xFF810000\n"            //a3300is disabled
  65                  "MOV     R0, %0\n"              // new jump-vector
  66                  "LDMFD   SP!, {R4,LR}\n"
  67                  "BX      R0\n"
  68                  : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
  69             );
  70         
  71         while(1);
  72 }
  73 
  74 // #define LED_PR 0xC02200F0
  75 // 
  76 // 
  77 // static void __attribute__((noreturn)) shutdown()
  78 // {
  79 //     volatile long *p = (void*)LED_PR;       // turned off later, so assumed to be power
  80 // 
  81 //      //TEST
  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;  // led off.
  90 // 
  91 //     while(1);
  92 // }
  93 // 
  94 // 
  95 // static void __attribute__((noreturn)) panic(int cnt)
  96 // {
  97 //      volatile long *p=(void*)LED_PR;
  98 //      int i;
  99 // 
 100 //      for(;cnt>0;cnt--){
 101 //              p[0]=0x46;
 102 // 
 103 //              for(i=0;i<0x200000;i++){
 104 //                      asm ("nop\n");
 105 //                      asm ("nop\n");
 106 //              }
 107 //              p[0]=0x44;
 108 //              for(i=0;i<0x200000;i++){
 109 //                      asm ("nop\n");
 110 //                      asm ("nop\n");
 111 //              }
 112 //      }
 113 //      shutdown();
 114 // }

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