This source file includes following definitions.
- my_restart
- shutdown
- panic
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 void __attribute__((noreturn)) my_restart() {
12
13 {
14 long *dst = (long*)MEMISOSTART;
15 const long *src = blob_chdk_core;
16 long length = (blob_chdk_core_size + 3) >> 2;
17
18 core_copy(src, dst, length);
19
20 }
21
22 asm volatile (
23 "LDR R1, =0xC0200000 \n"
24 "MOV R0, #0 \n"
25 "STR R0, [R1,#0x10C] \n"
26 "STR R0, [R1,#0xC] \n"
27 "STR R0, [R1,#0x1C] \n"
28 "STR R0, [R1,#0x2C] \n"
29 "STR R0, [R1,#0x3C] \n"
30 "STR R0, [R1,#0x4C] \n"
31 "STR R0, [R1,#0x5C] \n"
32 "STR R0, [R1,#0x6C] \n"
33 "STR R0, [R1,#0x7C] \n"
34 "STR R0, [R1,#0x8C] \n"
35 "STR R0, [R1,#0x9C] \n"
36 "STR R0, [R1,#0xAC] \n"
37 "STR R0, [R1,#0xBC] \n"
38 "STR R0, [R1,#0xCC] \n"
39 "STR R0, [R1,#0xDC] \n"
40 "STR R0, [R1,#0xEC] \n"
41 "CMP R4, #7 \n"
42 "STR R0, [R1,#0xFC] \n"
43 "LDMEQFD SP!, {R4,PC} \n"
44 "MOV R0, #0x78 \n"
45 "MCR p15, 0, R0,c1,c0 \n"
46 "MOV R0, #0 \n"
47 "MCR p15, 0, R0,c7,c10, 4 \n"
48 "MCR p15, 0, R0,c7,c5 \n"
49 "MCR p15, 0, R0,c7,c6 \n"
50 "MOV R0, #0x80000006 \n"
51 "MCR p15, 0, R0,c9,c1 \n"
52 "MCR p15, 0, R0,c9,c1, 1 \n"
53 "MRC p15, 0, R0,c1,c0 \n"
54 "ORR R0, R0, #0x50000 \n"
55 "MCR p15, 0, R0,c1,c0 \n"
56 "LDR R0, =0x12345678 \n"
57 "MOV R1, #0x80000000 \n"
58 "STR R0, [R1,#0xFFC] \n"
59
60 "LDMFD SP!, {R4,LR} \n"
61 "MOV R0, %0 \n"
62 "BX R0 \n"
63 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
64 );
65
66 while(1);
67
68 }
69
70 #define LED_GR 0xC0220014
71 #define LED_OR 0xC0220010
72 #define LED_AF 0xC022000C
73
74 static void __attribute__((noreturn)) shutdown() {
75
76 volatile long *p = (void*)LED_OR;
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;
86
87 while(1);
88 }
89
90 static void __attribute__((noreturn)) panic(int cnt) {
91
92 volatile long *p=(void*)LED_AF;
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 }