1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2020
4 * Niel Fourie, DENX Software Engineering, lusus@denx.de.
5 */
6
7#include <common.h>
8#include <blk.h>
9#include <command.h>
10#include <dm.h>
11
12static int do_lsblk(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
13{
14	struct driver *d = ll_entry_start(struct driver, driver);
15	const int n_ents = ll_entry_count(struct driver, driver);
16	struct driver *entry;
17	struct udevice *udev;
18	struct uclass *uc;
19	struct blk_desc *desc;
20	int ret, i;
21
22	ret = uclass_get(UCLASS_BLK, &uc);
23	if (ret) {
24		puts("Could not get BLK uclass.\n");
25		return CMD_RET_FAILURE;
26	}
27	puts("Block Driver          Devices\n");
28	puts("-----------------------------\n");
29	for (entry = d; entry < d + n_ents; entry++) {
30		if (entry->id != UCLASS_BLK)
31			continue;
32		i = 0;
33		printf("%-20.20s", entry->name);
34		uclass_foreach_dev(udev, uc) {
35			if (udev->driver != entry)
36				continue;
37			desc = dev_get_uclass_plat(udev);
38			printf("%c %s %u", i ? ',' : ':',
39			       blk_get_uclass_name(desc->uclass_id),
40			       desc->devnum);
41			i++;
42		}
43		if (!i)
44			puts(": <none>");
45		puts("\n");
46	}
47
48	return CMD_RET_SUCCESS;
49}
50
51U_BOOT_CMD(lsblk, 1, 0, do_lsblk, "list block drivers and devices",
52	   "- display list of block device drivers and attached block devices"
53);
54