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_chdk_core_size;
8
9 void __attribute__((noreturn)) my_restart()
10 {
11
12 {
13 long *dst = (long*)MEMISOSTART;
14 const long *src = blob_chdk_core;
15 long length = (blob_chdk_core_size + 3) >> 2;
16
17 core_copy(src, dst, length);
18
19 }
20
21 // ROM:FFC2AAB4 resetcode here:
22 // search for "0x12345678"
23 asm volatile (
24 "MRS R0, CPSR\n"
25 "BIC R0, R0, #0x3F\n"
26 "ORR R0, R0, #0xD3\n"
27 "MSR CPSR, R0\n"
28 "LDR R1, =0xC0200000\n"
29 "MOV R0, #0xFFFFFFFF\n"
30 "STR R0, [R1,#0x10C]\n"
31 "STR R0, [R1,#0xC]\n"
32 "STR R0, [R1,#0x1C]\n"
33 "STR R0, [R1,#0x2C]\n"
34 "STR R0, [R1,#0x3C]\n"
35 "STR R0, [R1,#0x4C]\n"
36 "STR R0, [R1,#0x5C]\n"
37 "STR R0, [R1,#0x6C]\n"
38 "STR R0, [R1,#0x7C]\n"
39 "STR R0, [R1,#0x8C]\n"
40 "STR R0, [R1,#0x9C]\n"
41 "STR R0, [R1,#0xAC]\n"
42 "STR R0, [R1,#0xBC]\n"
43 "STR R0, [R1,#0xCC]\n"
44 "STR R0, [R1,#0xDC]\n"
45 "STR R0, [R1,#0xEC]\n"
46 "CMP R4, #7\n"
47 "STR R0, [R1,#0xFC]\n"
48 "LDMEQFD SP!, {R4,PC}\n"
49 "MOV R0, #0x78\n"
50 "MCR p15, 0, R0,c1,c0\n"
51 "MOV R0, #0\n"
52 "MCR p15, 0, R0,c7,c10, 4\n"
53 "MCR p15, 0, R0,c7,c5\n"
54 "MCR p15, 0, R0,c7,c6\n"
55 "MOV R0, #0x40000006\n"
56 "MCR p15, 0, R0,c9,c1\n"
57 "MCR p15, 0, R0,c9,c1, 1\n"
58 "MRC p15, 0, R0,c1,c0\n"
59 "ORR R0, R0, #0x50000\n"
60 "MCR p15, 0, R0,c1,c0\n"
61 "LDR R0, =0x12345678\n"
62 "MOV R1, #0x40000000\n"
63 "STR R0, [R1,#0xFFC]\n"
64 // "LDR R0, =loc_FFC00000\n" // -
65 "MOV R0, %0\n" // new jump-vector
66 "LDMFD SP!, {R4,LR}\n"
67 "BX R0\n"
68 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
69
70 while(1);
71 }
72
73 //#define LED_PR 0xC0220080 // AF LED
74 #define LED_PR 0xC0220088 // Green LED
75
76 //static void __attribute__((noreturn)) shutdown()
77 //{
78 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
79 //
80 // asm(
81 // "MRS R1, CPSR\n"
82 // "AND R0, R1, #0x80\n"
83 // "ORR R1, R1, #0x80\n"
84 // "MSR CPSR_cf, R1\n"
85 // :::"r1","r0");
86 //
87 // *p = 0x44; // led off.
88 //
89 // while(1);
90 //}
91
92
93 //static void __attribute__((noreturn)) panic(int cnt)
94 //{
95 // volatile long *p=(void*)LED_PR;
96 // int i;
97 //
98 // for(;cnt>0;cnt--){
99 // p[0]=0x46;
100 //
101 // for(i=0;i<0x200000;i++){
102 // asm ("nop\n");
103 // asm ("nop\n");
104 // }
105 // p[0]=0x44;
106 // for(i=0;i<0x200000;i++){
107 // asm ("nop\n");
108 // asm ("nop\n");
109 // }
110 // }
111 // shutdown();
112 //}