LXR uboot/cmd/dataflash_mmc

   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
  10static int mmc_nspi (const char *);
  11
  12int 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
  32static 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
  42U_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