root/loader/ixus95_sd1200/main.c

/* [<][>][^][v][top][bottom][index][help] */

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" // from original restart func, doesn't make sense here
  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"
  65                 "MOV     R1, #0x80000000\n"
  66                 "STR     R0, [R1,#0xFFC]\n"
  67 //              "LDR     R0, =loc_FF810000\n"
  68                 "mov     R0, %0\n"
  69 //              "LDMFD   SP!, {R4,LR}\n" // no return possible
  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)
  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 0xC02200BC
  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 // }

/* [<][>][^][v][top][bottom][index][help] */