| /* |
| * Copyright 2010, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <part.h> |
| |
| int do_read (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| char *ep; |
| block_dev_desc_t *dev_desc = NULL; |
| int dev; |
| int part = 0; |
| disk_partition_t part_info; |
| ulong offset = 0u; |
| ulong limit = 0u; |
| void *addr; |
| uint blk; |
| uint cnt; |
| |
| if (argc != 6) { |
| cmd_usage (cmdtp); |
| return 1; |
| } |
| |
| dev = (int)simple_strtoul (argv[2], &ep, 16); |
| if (*ep) { |
| if (*ep != ':') { |
| printf ("Invalid block device %s\n", argv[2]); |
| return 1; |
| } |
| part = (int)simple_strtoul (++ep, NULL, 16); |
| } |
| |
| dev_desc = get_dev (argv[1], dev); |
| if (dev_desc == NULL) { |
| printf ("Block device %s %d not supported\n", argv[1], dev); |
| return 1; |
| } |
| |
| addr = (void *)simple_strtoul (argv[3], NULL, 16); |
| blk = simple_strtoul (argv[4], NULL, 16); |
| cnt = simple_strtoul (argv[5], NULL, 16); |
| |
| if (part != 0) { |
| if (get_partition_info (dev_desc, part, &part_info)) { |
| printf ("Cannot find partition %d\n", part); |
| return 1; |
| } |
| offset = part_info.start; |
| limit = part_info.size; |
| } else { |
| /* Largest address not available in block_dev_desc_t. */ |
| limit = ~0; |
| } |
| |
| if (cnt + blk > limit) { |
| printf ("Read out of range\n"); |
| return 1; |
| } |
| |
| if (dev_desc->block_read (dev, offset + blk, cnt, addr) < 0) { |
| printf ("Error reading blocks\n"); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| U_BOOT_CMD( |
| read, 6, 0, do_read, |
| "Load binary data from a partition", |
| "<interface> <dev[:part]> addr blk# cnt" |
| ); |