e369790843
Add a command to print a list of available block device drivers, and for each, the list of known block devices. Signed-off-by: Niel Fourie <lusus@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de>
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2020
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* Niel Fourie, DENX Software Engineering, lusus@denx.de.
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*/
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#include <common.h>
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#include <dm.h>
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static int do_lsblk(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
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{
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struct driver *d = ll_entry_start(struct driver, driver);
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const int n_ents = ll_entry_count(struct driver, driver);
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struct driver *entry;
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struct udevice *udev;
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struct uclass *uc;
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struct blk_desc *desc;
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int ret, i;
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ret = uclass_get(UCLASS_BLK, &uc);
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if (ret) {
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puts("Could not get BLK uclass.\n");
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return CMD_RET_FAILURE;
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}
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puts("Block Driver Devices\n");
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puts("-----------------------------\n");
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for (entry = d; entry < d + n_ents; entry++) {
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if (entry->id != UCLASS_BLK)
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continue;
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i = 0;
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printf("%-20.20s", entry->name);
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uclass_foreach_dev(udev, uc) {
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if (udev->driver != entry)
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continue;
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desc = dev_get_uclass_platdata(udev);
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printf("%c %s %u", i ? ',' : ':',
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blk_get_if_type_name(desc->if_type),
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desc->devnum);
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i++;
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}
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if (!i)
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puts(": <none>");
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puts("\n");
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}
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(lsblk, 1, 0, do_lsblk, "list block drivers and devices",
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"- display list of block device drivers and attached block devices"
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);
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