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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* (C) Copyright 2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <i2c.h>
static u8 boot_267_nor[] = {
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00,
0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
static u8 boot_267_nand[] = {
0xd0, 0x38, 0xc3, 0x50, 0x13, 0x88, 0x8e, 0x00,
0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
u8 chip;
u8 *buf;
int cpu_freq;
if (argc < 3)
return cmd_usage(cmdtp);
cpu_freq = simple_strtol(argv[1], NULL, 10);
if (cpu_freq != 267) {
printf("Unsupported cpu-frequency - only 267 supported\n");
return 1;
}
/* use 0x50 as I2C EEPROM address for now */
chip = 0x50;
if ((strcmp(argv[2], "nor") != 0) &&
(strcmp(argv[2], "nand") != 0)) {
printf("Unsupported boot-device - only nor|nand support\n");
return 1;
}
if (strcmp(argv[2], "nand") == 0) {
switch (cpu_freq) {
case 267:
buf = boot_267_nand;
break;
default:
break;
}
} else {
switch (cpu_freq) {
case 267:
buf = boot_267_nor;
break;
default:
break;
}
}
if (i2c_write(chip, 0, 1, buf, 16) != 0)
printf("Error writing to EEPROM at address 0x%x\n", chip);
udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
if (i2c_write(chip, 0x10, 1, buf+16, 4) != 0)
printf("Error2 writing to EEPROM at address 0x%x\n", chip);
printf("Done\n");
printf("Please power-cycle the board for the changes to take effect\n");
return 0;
}
U_BOOT_CMD(
bootstrap, 3, 0, do_bootstrap,
"program the I2C bootstrap EEPROM",
"<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM"
);
|
