1
2
3
4
5
6
7#include <common.h>
8#include <command.h>
9
10static int mmc_nspi (const char *);
11
12int do_dataflash_mmc_mux(struct cmd_tbl *cmdtp, int flag, int argc,
13 char *const argv[])
14{
15 switch (argc) {
16 case 2:
17 switch (mmc_nspi (argv[1])) {
18 case 0: AT91F_SelectSPI ();
19 break;
20 case 1: AT91F_SelectMMC ();
21 break;
22 }
23 case 1:
24 printf ("Mux is configured to be %s\n",
25 AT91F_GetMuxStatus () ? "MMC" : "SPI");
26 return 0;
27 default:
28 return CMD_RET_USAGE;
29 }
30 return 0;
31}
32
33static int mmc_nspi (const char *s)
34{
35 if (strcmp (s, "mmc") == 0) {
36 return 1;
37 } else if (strcmp (s, "spi") == 0) {
38 return 0;
39 }
40 return -1;
41}
42
43U_BOOT_CMD(
44 dataflash_mmc_mux, 2, 1, do_dataflash_mmc_mux,
45 "enable or disable MMC or SPI\n",
46 "[mmc, spi]\n"
47 " - enable or disable MMC or SPI"
48);
49