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 long *dst = (long*)MEMISOSTART;
13 const long *src = blob_chdk_core;
14 long length = (blob_chdk_core_size + 3) >> 2;
15
16 core_copy(src, dst, length);
17
18 }
19
20 //a810 100b found @ 0xff834680
21 asm volatile (
22 "LDR R1, =0xC0200000\n"
23 "MVN R0, #0\n"
24 "STR R0, [R1, #0x10C]\n"
25 "STR R0, [R1, #0xC]\n"
26 "STR R0, [R1, #0x1C]\n"
27 "STR R0, [R1, #0x2C]\n"
28 "STR R0, [R1, #0x3C]\n"
29 "STR R0, [R1, #0x4C]\n"
30 "STR R0, [R1, #0x5C]\n"
31 "STR R0, [R1, #0x6C]\n"
32 "STR R0, [R1, #0x7C]\n"
33 "STR R0, [R1, #0x8C]\n"
34 "STR R0, [R1, #0x9C]\n"
35 "STR R0, [R1, #0xAC]\n"
36 "STR R0, [R1, #0xBC]\n"
37 "STR R0, [R1, #0xCC]\n"
38 "STR R0, [R1, #0xDC]\n"
39 "STR R0, [R1, #0xEC]\n"
40 "CMP R4, #7\n"
41 "STR R0, [R1, #0xFC]\n"
42 // "LDMEQFD SP!, {R4,PC} \n" //Commented in sx260hs and ELPH310 port
43 "MOV R0, #0x78\n"
44 "MCR p15, 0, R0, c1, c0\n"
45 "MOV R0, #0\n"
46 "MCR p15, 0, R0, c7, c10, 4\n"
47 "MCR p15, 0, R0, c7, c5\n"
48 "MCR p15, 0, R0, c7, c6\n"
49 "MOV R0, #0x80000006\n"
50 "MCR p15, 0, R0, c9, c1\n"
51 "MCR p15, 0, R0, c9, c1, 1\n"
52 "MRC p15, 0, R0, c1, c0\n"
53 "ORR R0, R0, #0x50000\n"
54 "MCR p15, 0, R0, c1, c0\n"
55 "LDR R0, =0x12345678\n"
56 "MOV R1, #0x80000000\n"
57 "STR R0, [R1, #0xFFC]\n"
58 // "LDR R0, =0xFF810000\n" //original jump-vector
59 "MOV R0, %0\n" // new jump-vector
60 "LDMFD SP!, {R4,LR}\n"
61 "BX R0\n"
62 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
63 );
64
65 while(1);
66 }
67
68 //#define LED_PR 0xC0220120 //LED_GREEN
69
70 //static void __attribute__((noreturn)) shutdown()
71 //{
72 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
73 //
74 // asm(
75 // "MRS R1, CPSR\n"
76 // "AND R0, R1, #0x80\n"
77 // "ORR R1, R1, #0x80\n"
78 // "MSR CPSR_cf, R1\n"
79 // :::"r1","r0");
80 //
81 // *p = 0x44; // led off.
82 //
83 // while(1);
84 //}
85
86 //static void __attribute__((noreturn)) panic(int cnt)
87 //{
88 // volatile long *p=(void*)LED_PR;
89 // int i;
90 //
91 // for(;cnt>0;cnt--){
92 // p[0]=0x46;
93 //
94 // for(i=0;i<0x200000;i++){
95 // asm ("nop\n");
96 // asm ("nop\n");
97 // }
98 // p[0]=0x44;
99 // for(i=0;i<0x200000;i++){
100 // asm ("nop\n");
101 // asm ("nop\n");
102 // }
103 // }
104 // shutdown();
105 //}