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(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
  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