1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2000
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 #include <common.h>
8 #include <command.h>
9
10 static int mmc_nspi (const char *);
11
do_dataflash_mmc_mux(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])12 int do_dataflash_mmc_mux(struct cmd_tbl *cmdtp, int flag, int argc,
13 char *const argv[])
14 {
15 switch (argc) {
16 case 2: /* on / off */
17 switch (mmc_nspi (argv[1])) {
18 case 0: AT91F_SelectSPI ();
19 break;
20 case 1: AT91F_SelectMMC ();
21 break;
22 }
23 case 1: /* get status */
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
mmc_nspi(const char * s)33 static 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
43 U_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