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 // resetcode here:
21
22 asm volatile (
23 "MRS R0, CPSR\n"
24 "BIC R0, R0, #0x3F\n"
25 "ORR R0, R0, #0xD3\n"
26 "MSR CPSR, R0\n"
27 "LDR R1, =0xC0200000\n"
28 "MVN R0, #0\n"
29 "STR R0, [R1,#0x10C]\n"
30 "STR R0, [R1,#0xC]\n"
31 "STR R0, [R1,#0x1C]\n"
32 "STR R0, [R1,#0x2C]\n"
33 "STR R0, [R1,#0x3C]\n"
34 "STR R0, [R1,#0x4C]\n"
35 "STR R0, [R1,#0x5C]\n"
36 "STR R0, [R1,#0x6C]\n"
37 "STR R0, [R1,#0x7C]\n"
38 "STR R0, [R1,#0x8C]\n"
39 "STR R0, [R1,#0x9C]\n"
40 "STR R0, [R1,#0xAC]\n"
41 "STR R0, [R1,#0xBC]\n"
42 "STR R0, [R1,#0xCC]\n"
43 "STR R0, [R1,#0xDC]\n"
44 "STR R0, [R1,#0xEC]\n"
45 "CMP R4, #7\n"
46 "STR R0, [R1,#0xFC]\n"
47 // "LDMEQFD SP!, {R4,PC}\n"
48 "MOV R0, #0x78\n"
49 "MCR p15, 0, R0,c1,c0\n"
50 "MOV R0, #0\n"
51 "MCR p15, 0, R0,c7,c10, 4\n"
52 "MCR p15, 0, R0,c7,c5\n"
53 "MCR p15, 0, R0,c7,c6\n"
54 "MOV R0, #0x80000006\n"
55 "MCR p15, 0, R0,c9,c1\n"
56 "MCR p15, 0, R0,c9,c1, 1\n"
57 "MRC p15, 0, R0,c1,c0\n"
58 "ORR R0, R0, #0x50000\n"
59 "MCR p15, 0, R0,c1,c0\n"
60 "LDR R0, =0x12345678\n"
61 "MOV R1, #0x80000000\n"
62 "STR R0, [R1,#0xFFC]\n"
63 // "LDR R0, =loc_FF810000\n"
64 "MOV R0, %0\n" // new jump-vector
65 "LDMFD SP!, {R4,LR}\n"
66 "BX R0\n"
67 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
68
69 while(1);
70 }
71
72 //#define LED_PR 0xC0220134
73 //
74 //static void __attribute__((noreturn)) shutdown()
75 //{
76 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
77 //
78 // asm(
79 // "MRS R1, CPSR\n"
80 // "AND R0, R1, #0x80\n"
81 // "ORR R1, R1, #0x80\n"
82 // "MSR CPSR_cf, R1\n"
83 // :::"r1","r0");
84 //
85 // *p = 0x44; // led off.
86 //
87 // while(1);
88 //}
89 //
90 //static void __attribute__((noreturn)) panic(int cnt)
91 //{
92 // volatile long *p=(void*)LED_PR;
93 // int i;
94 //
95 // for(;cnt>0;cnt--){
96 // p[0]=0x46;
97 //
98 // for(i=0;i<0x200000;i++){
99 // asm ("nop\n");
100 // asm ("nop\n");
101 // }
102 // p[0]=0x44;
103 // for(i=0;i<0x200000;i++){
104 // asm ("nop\n");
105 // asm ("nop\n");
106 // }
107 // }
108 // shutdown();
109 //}