1 /*
2 * Copyright (C) Copyright 2022 Rockchip Electronics Co., Ltd
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7 #include <common.h>
8 #include <dm.h>
9
10 static int blk_curr_iftype; /* 0: IF_TYPE_UNKNOWN */
11 static int blk_curr_dev = -1;
12
do_blk(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])13 static int do_blk(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
14 {
15 int curr_iftype;
16 int curr_dev;
17
18 if (argc < 4)
19 return CMD_RET_USAGE;
20
21 if (!strcmp(argv[1], "dev") && argc == 4) {
22 curr_iftype = if_typename_to_iftype(argv[2]);
23 curr_dev = simple_strtoul(argv[3], NULL, 16);
24 if (!blk_show_device(curr_iftype, curr_dev)) {
25 blk_curr_iftype = curr_iftype;
26 blk_curr_dev = curr_dev;
27 printf("... is now current device\n");
28 return CMD_RET_SUCCESS;
29 } else {
30 return CMD_RET_FAILURE;
31 }
32 }
33
34 if (!blk_curr_iftype || blk_curr_dev == -1) {
35 printf("Set the `blk dev <interface> <devnum>` before other command\n\n");
36 return CMD_RET_USAGE;
37 }
38
39 return blk_common_cmd(argc, argv, blk_curr_iftype, &blk_curr_dev);
40 }
41
42 U_BOOT_CMD(
43 blk, 5, 1, do_blk,
44 "Block device sub-system",
45 "dev <interface> <devnum>\n"
46 "blk read <addr> <blk#> cnt\n"
47 "blk write <addr> <blk#> cnt\n"
48 "blk erase <blk#> cnt\n"
49 );
50
51