root/loader/a1000/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                         "MRS     R0, CPSR\n"
  28                         "BIC     R0, R0, #0x3F\n"
  29                         "ORR     R0, R0, #0xD3\n"
  30                         "MSR     CPSR, R0\n"
  31                         "LDR     R1, =0xC0200000\n"
  32                         "MOV     R0, #0xFFFFFFFF\n"
  33                         "STR     R0, [R1,#0x10C]\n"
  34                         "STR     R0, [R1,#0xC]\n"
  35                         "STR     R0, [R1,#0x1C]\n"
  36                         "STR     R0, [R1,#0x2C]\n"
  37                         "STR     R0, [R1,#0x3C]\n"
  38                         "STR     R0, [R1,#0x4C]\n"
  39                         "STR     R0, [R1,#0x5C]\n"
  40                         "STR     R0, [R1,#0x6C]\n"
  41                         "STR     R0, [R1,#0x7C]\n"
  42                         "STR     R0, [R1,#0x8C]\n"
  43                         "STR     R0, [R1,#0x9C]\n"
  44                         "STR     R0, [R1,#0xAC]\n"
  45                         "STR     R0, [R1,#0xBC]\n"
  46                         "STR     R0, [R1,#0xCC]\n"
  47                         "STR     R0, [R1,#0xDC]\n"
  48                         "STR     R0, [R1,#0xEC]\n"
  49                         "CMP     R4, #7\n"
  50                         "STR     R0, [R1,#0xFC]\n"
  51                         "LDMEQFD SP!, {R4,PC}\n"
  52                         "MOV     R0, #0x78\n"
  53                         "MCR     p15, 0, R0,c1,c0\n"
  54                         "MOV     R0, #0\n"
  55                         "MCR     p15, 0, R0,c7,c10, 4\n"
  56                         "MCR     p15, 0, R0,c7,c5\n"
  57                         "MCR     p15, 0, R0,c7,c6\n"
  58                         "MOV     R0, #0x40000006\n"
  59                         "MCR     p15, 0, R0,c9,c1\n"
  60                         "MCR     p15, 0, R0,c9,c1, 1\n"
  61                         "MRC     p15, 0, R0,c1,c0\n"
  62                         "ORR     R0, R0, #0x50000\n"
  63                         "MCR     p15, 0, R0,c1,c0\n"
  64                         "LDR     R0, =0x12345678\n"
  65                         "MOV     R1, #0x40000000\n"
  66                         "STR     R0, [R1,#0xFFC]\n"
  67                         //"LDR     R0, =0xFF810000\n"   // original jump-vector
  68                         "MOV     R0, %0\n"              // new jump-vector
  69                         "LDMFD   SP!, {R4,LR}\n"
  70                         //"BX        %0\n"
  71                         "BX      R0\n"
  72                         : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
  73         //);
  74 
  75         while(1);
  76 }
  77 
  78 // //#define LED_PR 0xc0220084
  79 // #define LED_PR 0xc02200d4
  80 // 
  81 // 
  82 // static void __attribute__((noreturn)) shutdown()
  83 // {
  84 //     //volatile long *p = (void*)0xc02200a0;       // what does this LED? Powe
  85 //     volatile long *p = (void*)LED_PR;       // turned off later, so assumed to be power
  86 //         
  87 //     asm(
  88 //          "MRS     R1, CPSR\n"
  89 //          "AND     R0, R1, #0x80\n"
  90 //          "ORR     R1, R1, #0x80\n"
  91 //          "MSR     CPSR_cf, R1\n"
  92 //          :::"r1","r0");
  93 //         
  94 //     *p = 0x44;  // led off.
  95 // 
  96 //     while(1);
  97 // }
  98 // 
  99 // 
 100 // static void __attribute__((noreturn)) panic(int cnt)
 101 // {
 102 //      volatile long *p=(void*)LED_PR;
 103 //      int i;
 104 // 
 105 //      for(;cnt>0;cnt--){
 106 //              p[0]=0x46;
 107 // 
 108 //              for(i=0;i<0x200000;i++){
 109 //                      asm ("nop\n");
 110 //                      asm ("nop\n");
 111 //              }
 112 //              p[0]=0x44;
 113 //              for(i=0;i<0x200000;i++){
 114 //                      asm ("nop\n");
 115 //                      asm ("nop\n");
 116 //              }
 117 //      }
 118 //      shutdown();
 119 // }

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