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 // DEBUG: jump to regular firmware-boot (causing a boot loop)
21 //dst_void = (void*) 0xFF810000;
22
23 //** a3400_1.01a @ 0xFF835AD0
24 asm volatile (
25 "LDR R1, =0xC0200000 \n"
26 "MVN R0, #0 \n"
27 "STR R0, [R1, #0x10C] \n"
28 "STR R0, [R1, #0xC] \n"
29 "STR R0, [R1, #0x1C] \n"
30 "STR R0, [R1, #0x2C] \n"
31 "STR R0, [R1, #0x3C] \n"
32 "STR R0, [R1, #0x4C] \n"
33 "STR R0, [R1, #0x5C] \n"
34 "STR R0, [R1, #0x6C] \n"
35 "STR R0, [R1, #0x7C] \n"
36 "STR R0, [R1, #0x8C] \n"
37 "STR R0, [R1, #0x9C] \n"
38 "STR R0, [R1, #0xAC] \n"
39 "STR R0, [R1, #0xBC] \n"
40 "STR R0, [R1, #0xCC] \n"
41 "STR R0, [R1, #0xDC] \n"
42 "STR R0, [R1, #0xEC] \n"
43 "CMP R4, #7 \n"
44 "STR R0, [R1, #0xFC] \n"
45 //"LDMEQFD SP!, {R4,PC} \n"
46 "MOV R0, #0x78 \n"
47 "MCR p15, 0, R0, c1, c0 \n"
48 "MOV R0, #0 \n"
49 "MCR p15, 0, R0, c7, c10, 4 \n"
50 "MCR p15, 0, R0, c7, c5 \n"
51 "MCR p15, 0, R0, c7, c6 \n"
52 "MOV R0, #0x80000006 \n"
53 "MCR p15, 0, R0, c9, c1 \n"
54 "MCR p15, 0, R0, c9, c1, 1 \n"
55 "MRC p15, 0, R0, c1, c0 \n"
56 "ORR R0, R0, #0x50000 \n"
57 "MCR p15, 0, R0, c1, c0 \n"
58 "LDR R0, =0x12345678 \n"
59 "MOV R1, #0x80000000 \n"
60 "STR R0, [R1, #0xFFC] \n"
61 //"LDR R0, =0xFF810000 \n" //original jump-vector
62 "MOV R0, %0\n" // new jump-vector
63 "LDMFD SP!, {R4,LR} \n"
64 "BX R0 \n"
65 : : "r"(MEMISOSTART) : "memory","r0","r1","r2","r3","r4"
66 );
67
68 while(1);
69 }
70
71 //#define LED_PR 0x???????? //LED_GREEN
72
73 //static void __attribute__((noreturn)) shutdown()
74 //{
75 // volatile long *p = (void*)LED_PR; // turned off later, so assumed to be power
76 //
77 // asm(
78 // "MRS R1, CPSR\n"
79 // "AND R0, R1, #0x80\n"
80 // "ORR R1, R1, #0x80\n"
81 // "MSR CPSR_cf, R1\n"
82 // :::"r1","r0");
83 //
84 // *p = 0x44; // led off.
85 //
86 // while(1);
87 //}
88
89 //static void __attribute__((noreturn)) panic(int cnt)
90 //{
91 // volatile long *p=(void*)LED_PR;
92 // int i;
93 //
94 // for(;cnt>0;cnt--){
95 // p[0]=0x46;
96 //
97 // for(i=0;i<0x200000;i++){
98 // asm ("nop\n");
99 // asm ("nop\n");
100 // }
101 // p[0]=0x44;
102 // for(i=0;i<0x200000;i++){
103 // asm ("nop\n");
104 // asm ("nop\n");
105 // }
106 // }
107 // shutdown();
108 //}