root/loader/a420/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     R1, CPSR\n"
  28         "BIC     R1, R1, #0x3F\n"
  29         "ORR     R1, R1, #0xD3\n"
  30         "MSR     CPSR_cf, R1\n"
  31 
  32         "LDR     R2, =0xC0200000\n"
  33         "MOV     R1, #0xFFFFFFFF\n"
  34         "STR     R1, [R2,#0x10C]\n"
  35         "STR     R1, [R2,#0xC]\n"
  36         "STR     R1, [R2,#0x1C]\n"
  37         "STR     R1, [R2,#0x2C]\n"
  38         "STR     R1, [R2,#0x3C]\n"
  39         "STR     R1, [R2,#0x4C]\n"
  40         "STR     R1, [R2,#0x5C]\n"
  41         "STR     R1, [R2,#0x6C]\n"
  42         "STR     R1, [R2,#0x7C]\n"
  43         "STR     R1, [R2,#0x8C]\n"
  44         "STR     R1, [R2,#0x9C]\n"
  45         "STR     R1, [R2,#0xAC]\n"
  46         "STR     R1, [R2,#0xBC]\n"
  47         "STR     R1, [R2,#0xCC]\n"
  48         "STR     R1, [R2,#0xDC]\n"
  49         "STR     R1, [R2,#0xEC]\n"
  50         "STR     R1, [R2,#0xFC]\n"
  51 
  52         "MOV     R1, #0x78\n"
  53         "MCR     p15, 0, R1,c1,c0\n"
  54         "MOV     R1, #0\n"
  55         "MCR     p15, 0, R1,c7,c10, 4\n"
  56         "MCR     p15, 0, R1,c7,c5\n"
  57         "MCR     p15, 0, R1,c7,c6\n"
  58         "MOV     R2, #0x40000000\n"
  59         "ORR     R1, R2, #6\n"
  60         "MCR     p15, 0, R1,c9,c1\n"
  61         "ORR     R1, R1, #6\n"
  62         "MCR     p15, 0, R1,c9,c1, 1\n"
  63         "MRC     p15, 0, R1,c1,c0\n"
  64         "ORR     R1, R1, #0x50000\n"
  65         "MCR     p15, 0, R1,c1,c0\n"
  66 
  67         "MOV     R3, #0xFF0\n"
  68         "LDR     R1, =0x12345678\n"
  69         "ADD     R3, R3, #0x4000000C\n"
  70         "STR     R1, [R3]\n"
  71 
  72         "MOV     SP, #0x1900\n"
  73         "MOV     LR, PC\n"
  74         "MOV     PC, %0\n"
  75     : : "r"(MEMISOSTART) : "memory","r1","r2","r3");
  76 
  77     while(1);
  78 }
  79 
  80 // #define LED_PR 0xc0220084
  81 // 
  82 // static void __attribute__((noreturn)) shutdown()
  83 // {
  84 //     volatile long *p = (void*)0xc02200a0;
  85 //         
  86 //     asm(
  87 //          "MRS     R1, CPSR\n"
  88 //          "AND     R0, R1, #0x80\n"
  89 //          "ORR     R1, R1, #0x80\n"
  90 //          "MSR     CPSR_cf, R1\n"
  91 //          :::"r1","r0");
  92 //         
  93 //     *p = 0x44;
  94 // 
  95 //     while(1);
  96 // }
  97 // 
  98 // 
  99 // static void __attribute__((noreturn)) panic(int cnt)
 100 // {
 101 //      volatile long *p=(void*)LED_PR;
 102 //      int i;
 103 // 
 104 //      for(;cnt>0;cnt--){
 105 //              p[0]=0x46;
 106 // 
 107 //              for(i=0;i<0x200000;i++){
 108 //                      asm ("nop\n");
 109 //                      asm ("nop\n");
 110 //              }
 111 //              p[0]=0x44;
 112 //              for(i=0;i<0x200000;i++){
 113 //                      asm ("nop\n");
 114 //                      asm ("nop\n");
 115 //              }
 116 //      }
 117 //      shutdown();
 118 // }

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