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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Socionext Inc.
- * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- */
- #include <common.h>
- #include <command.h>
- #include <env.h>
- #include <mmc.h>
- #include <linux/errno.h>
- static int find_first_mmc_device(bool is_sd)
- {
- struct mmc *mmc;
- int i;
- for (i = 0; (mmc = find_mmc_device(i)); i++) {
- if (!mmc_init(mmc) &&
- ((is_sd && IS_SD(mmc)) || (!is_sd && IS_MMC(mmc))))
- return i;
- }
- return -ENODEV;
- }
- int mmc_get_env_dev(void)
- {
- return find_first_mmc_device(false);
- }
- static int do_mmcsetn(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- int dev;
- dev = find_first_mmc_device(false);
- if (dev < 0)
- return CMD_RET_FAILURE;
- env_set_ulong("mmc_first_dev", dev);
- return CMD_RET_SUCCESS;
- }
- U_BOOT_CMD(
- mmcsetn, 1, 1, do_mmcsetn,
- "Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
- ""
- );
- static int do_sdsetn(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- int dev;
- dev = find_first_mmc_device(true);
- if (dev < 0)
- return CMD_RET_FAILURE;
- env_set_ulong("sd_first_dev", dev);
- return CMD_RET_SUCCESS;
- }
- U_BOOT_CMD(
- sdsetn, 1, 1, do_sdsetn,
- "Set the first SD dev number to \"sd_first_dev\" environment",
- ""
- );
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