root/loader/ixus990_sd970/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 void __attribute__((noreturn)) my_restart()
  12 {
  13   {
  14   // char *dst = dst_void;
  15   // const char *src = src_void;
  16   long *dst = (long*)MEMISOSTART;
  17   const long *src = blob_chdk_core;
  18   long length = (blob_chdk_core_size + 3) >> 2;
  19 
  20   core_copy(src, dst, length);
  21 
  22 }
  23 
  24 //sd970: 0xff828c20
  25 //
  26         asm volatile (
  27                 "MRS     R0, CPSR\n"
  28                 "BIC     R0, R0, #0x3F\n"
  29                 "ORR     R0, R0, #0xD3\n"
  30                 "MSR     CPSR_cxsf, R0\n"
  31                 "LDR     R1, =0xC0200000\n"
  32                 "MOV     R0, #0xFFFFFFFF\n"   //Equals MVN R0, #0
  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, #0x80000006\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"             //Search Method
  65                 "MOV     R1, #0x80000000\n"
  66                 "STR     R0, [R1, #0xFFC]\n"
  67 //              "LDR     R0, =0xFF810000\n"     //Prevents loop
  68                 "MOV     R0, %0\n"                              //Loads Arg_0 to R0
  69                 "LDMFD   SP!, {R4,LR}\n" //???
  70                 "BX      R0\n"
  71                 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
  72 
  73         while(1);
  74 }
  75 
  76 
  77 //static void __attribute__((noreturn)) shutdown()
  78 //{
  79 //    volatile long *p = (void*)0xC022001C;       // from task_Bye (not really complete)  //SD780 also needs looking at
  80 //
  81 //    asm(
  82 //         "MRS     R1, CPSR\n"
  83 //         "AND     R0, R1, #0x80\n"
  84 //         "ORR     R1, R1, #0x80\n"
  85 //         "MSR     CPSR_cf, R1\n"
  86 //         :::"r1","r0");
  87 //
  88 //    *p = 0x44;
  89 //
  90 //    while(1);
  91 //}
  92 
  93 //#define LED_PR 0xC0220128  //SD780
  94 //static void __attribute__((noreturn)) panic(int cnt)
  95 //{
  96 //      volatile long *p=(void*)LED_PR;
  97 //      int i;
  98 //
  99 //      for(;cnt>0;cnt--){
 100 //              p[0]=0x46;
 101 //
 102 //              for(i=0;i<0x200000;i++){
 103 //                      asm ("nop\n");
 104 //                      asm ("nop\n");
 105 //              }
 106 //              p[0]=0x44;
 107 //              for(i=0;i<0x200000;i++){
 108 //                      asm ("nop\n");
 109 //                      asm ("nop\n");
 110 //              }
 111 //      }
 112 //      shutdown();
 113 //}

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