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 // resetcode here:
27 asm volatile (
28 "MRS R0, CPSR\n"
29 "BIC R0, R0, #0x3F\n"
30 "ORR R0, R0, #0xD3\n"
31 "MSR CPSR, R0\n"
32 "LDR R1, =0xC0200000\n"
33 "MOV R0, #0xFFFFFFFF\n"
34 "STR R0, [R1,#0x10C]\n"
35 "STR R0, [R1,#0xC]\n"
36 "STR R0, [R1,#0x1C]\n"
37 "STR R0, [R1,#0x2C]\n"
38 "STR R0, [R1,#0x3C]\n"
39 "STR R0, [R1,#0x4C]\n"
40 "STR R0, [R1,#0x5C]\n"
41 "STR R0, [R1,#0x6C]\n"
42 "STR R0, [R1,#0x7C]\n"
43 "STR R0, [R1,#0x8C]\n"
44 "STR R0, [R1,#0x9C]\n"
45 "STR R0, [R1,#0xAC]\n"
46 "STR R0, [R1,#0xBC]\n"
47 "STR R0, [R1,#0xCC]\n"
48 "STR R0, [R1,#0xDC]\n"
49 "STR R0, [R1,#0xEC]\n"
50 "CMP R4, #7\n"
51 "STR R0, [R1,#0xFC]\n"
52 "LDMEQFD SP!, {R4,PC}\n"
53 "MOV R0, #0x78\n"
54 "MCR p15, 0, R0,c1,c0\n"
55 "MOV R0, #0\n"
56 "MCR p15, 0, R0,c7,c10, 4\n"
57 "MCR p15, 0, R0,c7,c5\n"
58 "MCR p15, 0, R0,c7,c6\n"
59 "MOV R0, #0x40000006\n"
60 "MCR p15, 0, R0,c9,c1\n"
61 "MCR p15, 0, R0,c9,c1, 1\n"
62 "MRC p15, 0, R0,c1,c0\n"
63 "ORR R0, R0, #0x50000\n"
64 "MCR p15, 0, R0,c1,c0\n"
65 "LDR R0, =0x12345678\n"
66 "MOV R1, #0x40000000\n"
67 "STR R0, [R1,#0xFFC]\n"
68 //"LDR R0, =0xFF810000\n" // original jump-vector
69 "MOV R0, %0\n" // new jump-vector
70 "LDMFD SP!, {R4,LR}\n"
71 //"BX %0\n"
72 "BX R0\n"
73 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4");
74 //);
75
76 while(1);
77 }
78
79 // //#define LED_PR 0xc0220084
80 // #define LED_PR 0xc02200d4
81 //
82 // static void __attribute__((noreturn)) shutdown()
83 // {
84 // //volatile long *p = (void*)0xc02200a0; // what does this LED? Powe
85 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
86 //
87 // asm(
88 // "MRS R1, CPSR\n"
89 // "AND R0, R1, #0x80\n"
90 // "ORR R1, R1, #0x80\n"
91 // "MSR CPSR_cf, R1\n"
92 // :::"r1","r0");
93 //
94 // *p = 0x44; // led off.
95 //
96 // while(1);
97 // }
98 //
99 //
100 // static void __attribute__((noreturn)) panic(int cnt)
101 // {
102 // volatile long *p=(void*)LED_PR;
103 // int i;
104 //
105 // for(;cnt>0;cnt--){
106 // p[0]=0x46;
107 //
108 // for(i=0;i<0x200000;i++){
109 // asm ("nop\n");
110 // asm ("nop\n");
111 // }
112 // p[0]=0x44;
113 // for(i=0;i<0x200000;i++){
114 // asm ("nop\n");
115 // asm ("nop\n");
116 // }
117 // }
118 // shutdown();
119 // }