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 // ROM:FF823AE4 resetcode here:
27 // ToDo: copy real RestartDevice stuff from dissassemble
28 // This is generic restartcode
29 // search for "0xC0200000"
30 asm volatile(
31 "MRS R1, CPSR\n"
32 "BIC R1, R1, #0x3F\n"
33 "ORR R1, R1, #0xD3\n"
34 //"MSR CPSR_cf, R1\n" // orginal
35 "MSR CPSR, R1\n"
36 "LDR R2, =0xC0200000\n"
37 "MOV R1, #0xFFFFFFFF\n"
38 "STR R1, [R2,#0x10C]\n"
39 "STR R1, [R2,#0xC]\n"
40 "STR R1, [R2,#0x1C]\n"
41 "STR R1, [R2,#0x2C]\n"
42 "STR R1, [R2,#0x3C]\n"
43 "STR R1, [R2,#0x4C]\n"
44 "STR R1, [R2,#0x5C]\n"
45 "STR R1, [R2,#0x6C]\n"
46 "STR R1, [R2,#0x7C]\n"
47 "STR R1, [R2,#0x8C]\n"
48 "STR R1, [R2,#0x9C]\n"
49 "STR R1, [R2,#0xAC]\n"
50 "STR R1, [R2,#0xBC]\n"
51 "STR R1, [R2,#0xCC]\n"
52 "STR R1, [R2,#0xDC]\n"
53 "STR R1, [R2,#0xEC]\n"
54 "STR R1, [R2,#0xFC]\n"
55 //"CMP R4, #7\n"
56 //"LDMEQFD SP!, {R4,PC}\n"
57 "MOV R1, #0x78\n"
58 "MCR p15, 0, R1,c1,c0\n"
59 "MOV R1, #0\n"
60 "MCR p15, 0, R1,c7,c10, 4\n"
61 "MCR p15, 0, R1,c7,c5\n"
62 "MCR p15, 0, R1,c7,c6\n"
63 "MOV R2, #0x40000000\n"
64 "ORR R1, R2, #6\n"
65 "MCR p15, 0, R1,c9,c1\n"
66 "ORR R1, R1, #6\n"
67 "MCR p15, 0, R1,c9,c1, 1\n"
68 "MRC p15, 0, R1,c1,c0\n"
69 "ORR R1, R1, #0x50000\n"
70 "MCR p15, 0, R1,c1,c0\n"
71 "MOV R3, #0xFF0\n"
72 "LDR R1, =0x12345678\n"
73 //"MOV R2, #0x81000000\n"
74 "ADD R3, R3, #0x4000000C\n"
75 "STR R1, [R3]\n"
76
77 "MOV SP, #0x1900\n" // 0x2000000
78 "MOV LR, PC\n"
79 "MOV PC, %0\n"
80 :: "r"(MEMISOSTART) : "memory","r1","r2","r3"
81 );
82
83 while(1);
84 }
85
86
87 // #define LED_PR 0xc02200C4
88 //
89 // static void __attribute__((noreturn)) shutdown() {
90 // volatile long *p = (void*)0xc02200a0;
91 //
92 // asm(
93 // "MRS R1, CPSR\n"
94 // "AND R0, R1, #0x80\n"
95 // "ORR R1, R1, #0x80\n"
96 // "MSR CPSR_cf, R1\n"
97 // :::"r1","r0");
98 // *p = 0x44;
99 // while(1);
100 // }
101 //
102 // static void __attribute__((noreturn)) panic(int cnt) {
103 // volatile long *p=(void*)LED_PR;
104 // int i;
105 // for(;cnt>0;cnt--) {
106 // p[0]=0x46;
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 // }
119 //