projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| e5957e8d MY |
2 | /* |
| 3 | * Copyright (C) 2016 Socionext Inc. | |
| 4 | * Author: Masahiro Yamada <[email protected]> | |
| e5957e8d MY |
5 | */ |
| 6 | ||
| 7 | #include <common.h> | |
| 09140113 | 8 | #include <command.h> |
| 168068fb | 9 | #include <env.h> |
| e5957e8d MY |
10 | #include <mmc.h> |
| 11 | #include <linux/errno.h> | |
| 12 | ||
| ef5c7d6d | 13 | static int find_first_mmc_device(bool is_sd) |
| e5957e8d MY |
14 | { |
| 15 | struct mmc *mmc; | |
| 16 | int i; | |
| 17 | ||
| 18 | for (i = 0; (mmc = find_mmc_device(i)); i++) { | |
| ef5c7d6d MY |
19 | if (!mmc_init(mmc) && |
| 20 | ((is_sd && IS_SD(mmc)) || (!is_sd && IS_MMC(mmc)))) | |
| e5957e8d MY |
21 | return i; |
| 22 | } | |
| 23 | ||
| 24 | return -ENODEV; | |
| 25 | } | |
| 26 | ||
| 27 | int mmc_get_env_dev(void) | |
| 28 | { | |
| ef5c7d6d | 29 | return find_first_mmc_device(false); |
| e5957e8d MY |
30 | } |
| 31 | ||
| 09140113 SG |
32 | static int do_mmcsetn(struct cmd_tbl *cmdtp, int flag, int argc, |
| 33 | char *const argv[]) | |
| e5957e8d MY |
34 | { |
| 35 | int dev; | |
| 36 | ||
| ef5c7d6d | 37 | dev = find_first_mmc_device(false); |
| e5957e8d MY |
38 | if (dev < 0) |
| 39 | return CMD_RET_FAILURE; | |
| 40 | ||
| 018f5303 | 41 | env_set_ulong("mmc_first_dev", dev); |
| e5957e8d MY |
42 | return CMD_RET_SUCCESS; |
| 43 | } | |
| 44 | ||
| 45 | U_BOOT_CMD( | |
| 46 | mmcsetn, 1, 1, do_mmcsetn, | |
| 47 | "Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment", | |
| 48 | "" | |
| 49 | ); | |
| ef5c7d6d | 50 | |
| 09140113 SG |
51 | static int do_sdsetn(struct cmd_tbl *cmdtp, int flag, int argc, |
| 52 | char *const argv[]) | |
| ef5c7d6d MY |
53 | { |
| 54 | int dev; | |
| 55 | ||
| 56 | dev = find_first_mmc_device(true); | |
| 57 | if (dev < 0) | |
| 58 | return CMD_RET_FAILURE; | |
| 59 | ||
| 60 | env_set_ulong("sd_first_dev", dev); | |
| 61 | return CMD_RET_SUCCESS; | |
| 62 | } | |
| 63 | ||
| 64 | U_BOOT_CMD( | |
| 65 | sdsetn, 1, 1, do_sdsetn, | |
| 66 | "Set the first SD dev number to \"sd_first_dev\" environment", | |
| 67 | "" | |
| 68 | ); |