1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2020
4 * FUJITSU COMPUTERTECHNOLOGIES LIMITED. All rights reserved.
5 */
6
7 #include <command.h>
8 #include <env.h>
9 #include <mapmem.h>
10 #include <vsprintf.h>
11 #include <u-boot/lz4.h>
12
do_unlz4(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])13 static int do_unlz4(struct cmd_tbl *cmdtp, int flag, int argc,
14 char *const argv[])
15 {
16 unsigned long src, dst;
17 size_t src_len = ~0UL, dst_len = ~0UL;
18 int ret;
19
20 switch (argc) {
21 case 4:
22 src = hextoul(argv[1], NULL);
23 dst = hextoul(argv[2], NULL);
24 dst_len = hextoul(argv[3], NULL);
25 break;
26 default:
27 return CMD_RET_USAGE;
28 }
29
30 ret = ulz4fn(map_sysmem(src, 0), src_len, map_sysmem(dst, dst_len),
31 &dst_len);
32 if (ret) {
33 printf("Uncompressed err :%d\n", ret);
34 return 1;
35 }
36
37 printf("Uncompressed size: %zd = 0x%zX\n", dst_len, dst_len);
38 env_set_hex("filesize", dst_len);
39
40 return 0;
41 }
42
43 U_BOOT_CMD(unlz4, 4, 1, do_unlz4,
44 "lz4 uncompress a memory region",
45 "srcaddr dstaddr dstsize\n"
46 "NOTE: Specify the destination size that is sufficiently larger\n"
47 " than the source size.\n"
48 );
49