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(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])12 int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
13 {
14 switch (argc) {
15 case 2: /* on / off */
16 switch (mmc_nspi (argv[1])) {
17 case 0: AT91F_SelectSPI ();
18 break;
19 case 1: AT91F_SelectMMC ();
20 break;
21 }
22 case 1: /* get status */
23 printf ("Mux is configured to be %s\n",
24 AT91F_GetMuxStatus () ? "MMC" : "SPI");
25 return 0;
26 default:
27 return CMD_RET_USAGE;
28 }
29 return 0;
30 }
31
mmc_nspi(const char * s)32 static int mmc_nspi (const char *s)
33 {
34 if (strcmp (s, "mmc") == 0) {
35 return 1;
36 } else if (strcmp (s, "spi") == 0) {
37 return 0;
38 }
39 return -1;
40 }
41
42 U_BOOT_CMD(
43 dataflash_mmc_mux, 2, 1, do_dataflash_mmc_mux,
44 "enable or disable MMC or SPI\n",
45 "[mmc, spi]\n"
46 " - enable or disable MMC or SPI"
47 );
48