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 <blk.h>
9 #include <command.h>
10 #include <dm.h>
11 #include <nvme.h>
12
13 static int nvme_curr_dev;
14
do_nvme(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])15 static int do_nvme(struct cmd_tbl *cmdtp, int flag, int argc,
16 char *const argv[])
17 {
18 int ret;
19
20 if (argc == 2) {
21 if (strncmp(argv[1], "scan", 4) == 0) {
22 ret = nvme_scan_namespace();
23 if (ret)
24 return CMD_RET_FAILURE;
25
26 return ret;
27 }
28 if (strncmp(argv[1], "deta", 4) == 0) {
29 struct udevice *udev;
30
31 ret = blk_get_device(IF_TYPE_NVME, nvme_curr_dev,
32 &udev);
33 if (ret < 0)
34 return CMD_RET_FAILURE;
35
36 nvme_print_info(udev);
37
38 return ret;
39 }
40 }
41
42 return blk_common_cmd(argc, argv, IF_TYPE_NVME, &nvme_curr_dev);
43 }
44
45 U_BOOT_CMD(
46 nvme, 8, 1, do_nvme,
47 "NVM Express sub-system",
48 "scan - scan NVMe devices\n"
49 "nvme detail - show details of current NVMe device\n"
50 "nvme info - show all available NVMe devices\n"
51 "nvme device [dev] - show or set current NVMe device\n"
52 "nvme part [dev] - print partition table of one or all NVMe devices\n"
53 "nvme read addr blk# cnt - read `cnt' blocks starting at block\n"
54 " `blk#' to memory address `addr'\n"
55 "nvme write addr blk# cnt - write `cnt' blocks starting at block\n"
56 " `blk#' from memory address `addr'"
57 );
58