root/loader/a1300/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"  //Commented in sx260hs and ELPH310 port
  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, #0x80000006 \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                  "LDR     R0, =0x12345678 \n"
  61                  "MOV     R1, #0x80000000 \n"
  62                  "STR     R0, [R1, #0xFFC] \n"
  63                  // "LDR     R0, =0xFF810000 \n" //original jump-vector
  64                  "MOV     R0, %0\n"              // new jump-vector
  65                  "LDMFD   SP!, {R4,LR} \n"
  66                  "BX      R0 \n"
  67                  : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
  68                 );
  69 
  70         while(1);
  71 }
  72 
  73 // #define LED_PR 0xC0220120  //LED_GREEN
  74 // 
  75 // 
  76 // static void __attribute__((noreturn)) shutdown()
  77 // {
  78 //     volatile long *p = (void*)LED_PR;       // turned off later, so assumed to be power
  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;  // led off.
  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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