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
|
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
static int mmc_nspi (const char *);
int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
switch (argc) {
case 2: /* on / off */
switch (mmc_nspi (argv[1])) {
case 0: AT91F_SelectSPI ();
break;
case 1: AT91F_SelectMMC ();
break;
}
case 1: /* get status */
printf ("Mux is configured to be %s\n",
AT91F_GetMuxStatus () ? "MMC" : "SPI");
return 0;
default:
return cmd_usage(cmdtp);
}
return 0;
}
static int mmc_nspi (const char *s)
{
if (strcmp (s, "mmc") == 0) {
return 1;
} else if (strcmp (s, "spi") == 0) {
return 0;
}
return -1;
}
U_BOOT_CMD(
dataflash_mmc_mux, 2, 1, do_dataflash_mmc_mux,
"dataflash_mmc_mux\t- enable or disable MMC or SPI\n",
"[mmc, spi]\n"
" - enable or disable MMC or SPI"
);
|