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- /*
- * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * 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 <mapmem.h>
- #include <part.h>
- static int
- do_rw(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
- {
- struct blk_desc *dev_desc = NULL;
- struct disk_partition part_info;
- ulong offset, limit;
- uint blk, cnt, res;
- void *addr;
- int part;
- if (argc != 6) {
- cmd_usage(cmdtp);
- return 1;
- }
- part = part_get_info_by_dev_and_name_or_num(argv[1], argv[2],
- &dev_desc, &part_info, 1);
- if (part < 0)
- return 1;
- addr = map_sysmem(hextoul(argv[3], NULL), 0);
- blk = hextoul(argv[4], NULL);
- cnt = hextoul(argv[5], NULL);
- if (part > 0) {
- offset = part_info.start;
- limit = part_info.size;
- } else {
- /* Largest address not available in struct blk_desc. */
- offset = 0;
- limit = ~0;
- }
- if (cnt + blk > limit) {
- printf("%s out of range\n", cmdtp->name);
- return 1;
- }
- if (IS_ENABLED(CONFIG_CMD_WRITE) && !strcmp(cmdtp->name, "write"))
- res = blk_dwrite(dev_desc, offset + blk, cnt, addr);
- else
- res = blk_dread(dev_desc, offset + blk, cnt, addr);
- if (res != cnt) {
- printf("%s error\n", cmdtp->name);
- return 1;
- }
- return 0;
- }
- #ifdef CONFIG_CMD_READ
- U_BOOT_CMD(
- read, 6, 0, do_rw,
- "Load binary data from a partition",
- "<interface> <dev[:part|#partname]> addr blk# cnt"
- );
- #endif
- #ifdef CONFIG_CMD_WRITE
- U_BOOT_CMD(
- write, 6, 0, do_rw,
- "Store binary data to a partition",
- "<interface> <dev[:part|#partname]> addr blk# cnt"
- );
- #endif
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