cmd/nvme.c

   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
  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 );