blob: f71f180f621464e6a5006f79c2455dba6b0735a3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#ifndef __82802AB_H__
#define __82802AB_H__ 1
extern int probe_82802ab(struct flashchip *flash);
extern int erase_82802ab(struct flashchip *flash);
extern int write_82802ab(struct flashchip *flash, uint8_t *buf);
extern __inline__ void toggle_ready_82802ab(volatile uint8_t *dst)
{
unsigned int i = 0;
uint8_t tmp1, tmp2;
tmp1 = *dst & 0x40;
while (i++ < 0xFFFFFF) {
tmp2 = *dst & 0x40;
if (tmp1 == tmp2) {
break;
}
tmp1 = tmp2;
}
}
extern __inline__ void data_polling_82802ab(volatile uint8_t *dst,
uint8_t data)
{
unsigned int i = 0;
uint8_t tmp;
data &= 0x80;
while (i++ < 0xFFFFFF) {
tmp = *dst & 0x80;
if (tmp == data) {
break;
}
}
}
extern __inline__ void protect_82802ab(volatile uint8_t *bios)
{
*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
*(volatile uint8_t *)(bios + 0x5555) = 0xA0;
usleep(200);
}
#endif /* !__82802AB_H__ */
|
