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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*/
#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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