xref: /openbmc/u-boot/cmd/nvme.c (revision 971a54193c9a90a6651064c4a7879e3568e9e7b8)
1  /*
2   * Copyright (C) 2017 NXP Semiconductors
3   * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
4   *
5   * SPDX-License-Identifier:	GPL-2.0+
6   */
7  
8  #include <common.h>
9  #include <command.h>
10  #include <dm.h>
11  #include <nvme.h>
12  
13  static int nvme_curr_dev;
14  
15  static int do_nvme(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
16  {
17  	int ret;
18  
19  	if (argc == 2) {
20  		if (strncmp(argv[1], "scan", 4) == 0) {
21  			ret = nvme_scan_namespace();
22  			if (ret)
23  				return CMD_RET_FAILURE;
24  
25  			return ret;
26  		}
27  		if (strncmp(argv[1], "deta", 4) == 0) {
28  			struct udevice *udev;
29  
30  			ret = blk_get_device(IF_TYPE_NVME, nvme_curr_dev,
31  					     &udev);
32  			if (ret < 0)
33  				return CMD_RET_FAILURE;
34  
35  			nvme_print_info(udev);
36  
37  			return ret;
38  		}
39  	}
40  
41  	return blk_common_cmd(argc, argv, IF_TYPE_NVME, &nvme_curr_dev);
42  }
43  
44  U_BOOT_CMD(
45  	nvme, 8, 1, do_nvme,
46  	"NVM Express sub-system",
47  	"scan - scan NVMe devices\n"
48  	"nvme detail - show details of current NVMe device\n"
49  	"nvme info - show all available NVMe devices\n"
50  	"nvme device [dev] - show or set current NVMe device\n"
51  	"nvme part [dev] - print partition table of one or all NVMe devices\n"
52  	"nvme read addr blk# cnt - read `cnt' blocks starting at block\n"
53  	"     `blk#' to memory address `addr'\n"
54  	"nvme write addr blk# cnt - write `cnt' blocks starting at block\n"
55  	"     `blk#' from memory address `addr'"
56  );
57