LXR uboot/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
  12static int nvme_curr_dev;
  13
  14static 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
  43U_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