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 "MVN R0, #0\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"
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" // new jump-vector
69 "LDMFD SP!, {R4,LR}\n"
70 "BX R0\n"
71 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
72
73 while(1);
74 }
75
76 // #define LED_PR 0xc0220108 // green led, chdk wiki says so
77 //
78 //
79 // static void __attribute__((noreturn)) shutdown()
80 // {
81 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
82 //
83 // asm(
84 // "MRS R1, CPSR\n"
85 // "AND R0, R1, #0x80\n"
86 // "ORR R1, R1, #0x80\n"
87 // "MSR CPSR_cf, R1\n"
88 // :::"r1","r0");
89 //
90 // *p = 0x44; // led off.
91 //
92 // while(1);
93 // }
94 //
95 //
96 // static void __attribute__((noreturn)) panic(int cnt)
97 // {
98 // volatile long *p=(void*)LED_PR;
99 // int i;
100 //
101 // for(;cnt>0;cnt--){
102 // p[0]=0x46;
103 //
104 // for(i=0;i<0x200000;i++){
105 // asm ("nop\n");
106 // asm ("nop\n");
107 // }
108 // p[0]=0x44;
109 // for(i=0;i<0x200000;i++){
110 // asm ("nop\n");
111 // asm ("nop\n");
112 // }
113 // }
114 // shutdown();
115 // }