2 * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
6 * Alternatively, this software may be distributed under the terms of the
7 * GNU General Public License ("GPL") version 2 as published by the Free
15 int do_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
18 struct blk_desc *dev_desc = NULL;
21 disk_partition_t part_info;
33 dev = (int)simple_strtoul(argv[2], &ep, 16);
36 printf("Invalid block device %s\n", argv[2]);
39 part = (int)simple_strtoul(++ep, NULL, 16);
42 dev_desc = blk_get_dev(argv[1], dev);
43 if (dev_desc == NULL) {
44 printf("Block device %s %d not supported\n", argv[1], dev);
48 addr = (void *)simple_strtoul(argv[3], NULL, 16);
49 blk = simple_strtoul(argv[4], NULL, 16);
50 cnt = simple_strtoul(argv[5], NULL, 16);
53 if (part_get_info(dev_desc, part, &part_info)) {
54 printf("Cannot find partition %d\n", part);
57 offset = part_info.start;
58 limit = part_info.size;
60 /* Largest address not available in struct blk_desc. */
64 if (cnt + blk > limit) {
65 printf("Read out of range\n");
69 if (blk_dread(dev_desc, offset + blk, cnt, addr) != cnt) {
70 printf("Error reading blocks\n");
79 "Load binary data from a partition",
80 "<interface> <dev[:part]> addr blk# cnt"