root/loader/sx120is/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                         "MOV    R0, #0x1 \n"
  34                         "STR    R0, [R1,#0x10C] \n"
  35                         "MOV    R0, #0xFF \n"
  36                         "STR    R0, [R1,#0xC] \n"
  37                         "STR    R0, [R1,#0x1C] \n"
  38                         "STR    R0, [R1,#0x2C] \n"
  39                         "STR    R0, [R1,#0x3C] \n"
  40                         "STR    R0, [R1,#0x4C] \n"
  41                         "STR    R0, [R1,#0x5C] \n"
  42                         "STR    R0, [R1,#0x6C] \n"
  43                         "STR    R0, [R1,#0x7C] \n"
  44                         "STR    R0, [R1,#0x8C] \n"
  45                         "STR    R0, [R1,#0x9C] \n"
  46                         "STR    R0, [R1,#0xAC] \n"
  47                         "STR    R0, [R1,#0xBC] \n"
  48                         "STR    R0, [R1,#0xCC] \n"
  49                         "STR    R0, [R1,#0xDC] \n"
  50                         "STR    R0, [R1,#0xEC] \n"
  51                         "CMP    R4, #7 \n"
  52                         "STR    R0, [R1,#0xFC] \n"
  53                         "LDMEQFD        SP!, {R4,PC} \n"
  54                         "MOV    R0, #0x78 \n"
  55                         "MCR    p15, 0, R0,c1,c0 \n"
  56                         "MOV    R0, #0 \n"
  57                         "MCR    p15, 0, R0,c7,c10, 4 \n"
  58                         "MCR    p15, 0, R0,c7,c5 \n"
  59                         "MCR    p15, 0, R0,c7,c6 \n"
  60 //                      "MOV    R0, #0x40000006 \n"
  61                         "MOV    R0, #0x80000006 \n"
  62                         "MCR    p15, 0, R0,c9,c1 \n"
  63                         "MCR    p15, 0, R0,c9,c1, 1 \n"
  64                         "MRC    p15, 0, R0,c1,c0 \n"
  65                         "ORR    R0, R0, #0x50000 \n"
  66                         "MCR    p15, 0, R0,c1,c0 \n"
  67                         "LDR    R0, =0x12345678 \n"
  68                         "MOV    R1, #0x40000000 \n"
  69                         "STR    R0, [R1,#0xFFC] \n"
  70 //                      "LDR    R0, =0xFFC00000 \n"     //<----------deleted
  71                         "MOV     R0, %0\n"              //<---------- new jump-vector
  72                         "LDMFD  SP!, {R4,LR} \n"
  73                         "BX     R0\n"
  74                         : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");              //<-------------inserted
  75 
  76   while(1);
  77 }
  78 
  79 // #define LED_PR 0xC0220014
  80 // 
  81 // static void __attribute__((noreturn)) shutdown()
  82 // {
  83 //     volatile long *p = (void*)LED_PR;       // turned off later, so assumed to be power
  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;  // led off.
  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 // }

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