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
71
72 "LDR R2, =0xC0220204\n" // power
73 "LDR R2, [R2]\n" // button
74 "AND R2, #0x10000\n" // is
75 "CMP R2, #0\n" // pressed?
76
77 "STREQ R1, [R3]\n" // if not, store value
78
79 "MOV SP, #0x1900\n"
80 "MOV LR, PC\n"
81 "MOV PC, %0\n"
82 : : "r"(MEMISOSTART) : "memory","r1","r2","r3");
83
84 while(1);
85 }
86
87 // #define LED_PR 0xc022006C
88 //
89 // static void __attribute__((noreturn)) shutdown()
90 // {
91 // volatile long *p = (void*)0xc02200a0;
92 //
93 // asm(
94 // "MRS R1, CPSR\n"
95 // "AND R0, R1, #0x80\n"
96 // "ORR R1, R1, #0x80\n"
97 // "MSR CPSR_cf, R1\n"
98 // :::"r1","r0");
99 //
100 // *p = 0x44;
101 //
102 // while(1);
103 // }
104 //
105 //
106 // static void __attribute__((noreturn)) panic(int cnt)
107 // {
108 // volatile long *p=(void*)LED_PR;
109 // int i;
110 //
111 // for(;cnt>0;cnt--){
112 // p[0]=0x46;
113 //
114 // for(i=0;i<0x200000;i++){
115 // asm ("nop\n");
116 // asm ("nop\n");
117 // }
118 // p[0]=0x44;
119 // for(i=0;i<0x200000;i++){
120 // asm ("nop\n");
121 // asm ("nop\n");
122 // }
123 // }
124 // shutdown();
125 // }