1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2017 NXP Semiconductors
4 * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
5 */
6
7 #include <common.h>
8 #include <command.h>
9 #include <dm.h>
10 #include <nvme.h>
11
12 static int nvme_curr_dev;
13
do_nvme(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])14 static int do_nvme(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
15 {
16 int ret;
17
18 if (argc == 2) {
19 if (strncmp(argv[1], "scan", 4) == 0) {
20 ret = nvme_scan_namespace();
21 if (ret)
22 return CMD_RET_FAILURE;
23
24 return ret;
25 }
26 if (strncmp(argv[1], "deta", 4) == 0) {
27 struct udevice *udev;
28
29 ret = blk_get_device(IF_TYPE_NVME, nvme_curr_dev,
30 &udev);
31 if (ret < 0)
32 return CMD_RET_FAILURE;
33
34 nvme_print_info(udev);
35
36 return ret;
37 }
38 }
39
40 return blk_common_cmd(argc, argv, IF_TYPE_NVME, &nvme_curr_dev);
41 }
42
43 U_BOOT_CMD(
44 nvme, 8, 1, do_nvme,
45 "NVM Express sub-system",
46 "scan - scan NVMe devices\n"
47 "nvme detail - show details of current NVMe device\n"
48 "nvme info - show all available NVMe devices\n"
49 "nvme device [dev] - show or set current NVMe device\n"
50 "nvme part [dev] - print partition table of one or all NVMe devices\n"
51 "nvme read addr blk# cnt - read `cnt' blocks starting at block\n"
52 " `blk#' to memory address `addr'\n"
53 "nvme write addr blk# cnt - write `cnt' blocks starting at block\n"
54 " `blk#' from memory address `addr'"
55 );
56