blob: acc859a6c3f917ce7abaaafaac13208e644ebfca (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <linux/errno.h>
static int find_first_mmc_device(void)
{
struct mmc *mmc;
int i;
for (i = 0; (mmc = find_mmc_device(i)); i++) {
if (!mmc_init(mmc) && IS_MMC(mmc))
return i;
}
return -ENODEV;
}
int mmc_get_env_dev(void)
{
return find_first_mmc_device();
}
static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int dev;
dev = find_first_mmc_device();
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",
""
);
|
