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 // }