blob: 1952f4d1e14d823c72d662cd009f16233b564dd1 [file] [log] [blame]
Uma Shankara1596432012-05-25 21:21:44 +05301/*
2 * (C) Copyright 2011 - 2012 Samsung Electronics
3 * EXT2/4 filesystem implementation in Uboot by
4 * Uma Shankar <uma.shankar@samsung.com>
5 * Manjunatha C Achar <a.manjunatha@samsung.com>
6 *
7 * Ext4fs support
8 * made from existing cmd_ext2.c file of Uboot
9 *
10 * (C) Copyright 2004
11 * esd gmbh <www.esd-electronics.com>
12 * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
13 *
14 * made from cmd_reiserfs by
15 *
16 * (C) Copyright 2003 - 2004
17 * Sysgo Real-Time Solutions, AG <www.elinos.com>
18 * Pavel Bartusek <pba@sysgo.com>
19 *
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
24 *
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
29 *
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 * MA 02111-1307 USA
34 *
35 */
36
37/*
38 * Changelog:
39 * 0.1 - Newly created file for ext4fs support. Taken from cmd_ext2.c
40 * file in uboot. Added ext4fs ls load and write support.
41 */
42
43#include <common.h>
44#include <part.h>
45#include <config.h>
46#include <command.h>
47#include <image.h>
48#include <linux/ctype.h>
49#include <asm/byteorder.h>
50#include <ext_common.h>
51#include <ext4fs.h>
52#include <linux/stat.h>
53#include <malloc.h>
54
55#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
56#include <usb.h>
57#endif
58
59#if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
60#error DOS or EFI partition support must be selected
61#endif
62
63#define DOS_PART_MAGIC_OFFSET 0x1fe
64#define DOS_FS_TYPE_OFFSET 0x36
65#define DOS_FS32_TYPE_OFFSET 0x52
66
67int do_ext_load(cmd_tbl_t *cmdtp, int flag, int argc,
68 char *const argv[])
69{
70 char *filename = NULL;
Rob Herring81180812012-08-23 11:31:46 +000071 int dev, part;
Uma Shankara1596432012-05-25 21:21:44 +053072 ulong addr = 0;
Uma Shankara1596432012-05-25 21:21:44 +053073 int filelen;
74 disk_partition_t info;
Rob Herring81180812012-08-23 11:31:46 +000075 block_dev_desc_t *dev_desc;
Uma Shankara1596432012-05-25 21:21:44 +053076 char buf[12];
77 unsigned long count;
78 const char *addr_str;
79
80 count = 0;
81 addr = simple_strtoul(argv[3], NULL, 16);
82 filename = getenv("bootfile");
83 switch (argc) {
84 case 3:
85 addr_str = getenv("loadaddr");
86 if (addr_str != NULL)
87 addr = simple_strtoul(addr_str, NULL, 16);
88 else
89 addr = CONFIG_SYS_LOAD_ADDR;
90
91 break;
92 case 4:
93 break;
94 case 5:
95 filename = argv[4];
96 break;
97 case 6:
98 filename = argv[4];
99 count = simple_strtoul(argv[5], NULL, 16);
100 break;
101
102 default:
103 return cmd_usage(cmdtp);
104 }
105
106 if (!filename) {
107 puts("** No boot file defined **\n");
108 return 1;
109 }
110
Stephen Warren10a37fd2012-09-21 09:50:57 +0000111 part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
Rob Herring81180812012-08-23 11:31:46 +0000112 if (part < 0)
Uma Shankara1596432012-05-25 21:21:44 +0530113 return 1;
Uma Shankara1596432012-05-25 21:21:44 +0530114
Rob Herring81180812012-08-23 11:31:46 +0000115 dev = dev_desc->dev;
116 printf("Loading file \"%s\" from %s device %d%c%c\n",
117 filename, argv[1], dev,
118 part ? ':' : ' ', part ? part + '0' : ' ');
Uma Shankara1596432012-05-25 21:21:44 +0530119
Rob Herring81180812012-08-23 11:31:46 +0000120 ext4fs_set_blk_dev(dev_desc, &info);
Uma Shankara1596432012-05-25 21:21:44 +0530121
Rob Herring81180812012-08-23 11:31:46 +0000122 if (!ext4fs_mount(info.size)) {
123 printf("** Bad ext2 partition or disk - %s %d:%d **\n",
Uma Shankara1596432012-05-25 21:21:44 +0530124 argv[1], dev, part);
125 ext4fs_close();
126 goto fail;
127 }
128
129 filelen = ext4fs_open(filename);
130 if (filelen < 0) {
131 printf("** File not found %s\n", filename);
132 ext4fs_close();
133 goto fail;
134 }
135 if ((count < filelen) && (count != 0))
136 filelen = count;
137
138 if (ext4fs_read((char *)addr, filelen) != filelen) {
Rob Herring81180812012-08-23 11:31:46 +0000139 printf("** Unable to read \"%s\" from %s %d:%d **\n",
Uma Shankara1596432012-05-25 21:21:44 +0530140 filename, argv[1], dev, part);
141 ext4fs_close();
142 goto fail;
143 }
144
145 ext4fs_close();
Uma Shankara1596432012-05-25 21:21:44 +0530146 /* Loading ok, update default load address */
147 load_addr = addr;
148
149 printf("%d bytes read\n", filelen);
150 sprintf(buf, "%X", filelen);
151 setenv("filesize", buf);
152
153 return 0;
154fail:
Uma Shankara1596432012-05-25 21:21:44 +0530155 return 1;
156}
157
158int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
159{
160 const char *filename = "/";
161 int dev;
Rob Herring81180812012-08-23 11:31:46 +0000162 int part;
163 block_dev_desc_t *dev_desc;
164 disk_partition_t info;
165
166 if (argc < 2)
Uma Shankara1596432012-05-25 21:21:44 +0530167 return cmd_usage(cmdtp);
168
Stephen Warren10a37fd2012-09-21 09:50:57 +0000169 part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
Rob Herring81180812012-08-23 11:31:46 +0000170 if (part < 0)
Uma Shankara1596432012-05-25 21:21:44 +0530171 return 1;
Uma Shankara1596432012-05-25 21:21:44 +0530172
173 if (argc == 4)
174 filename = argv[3];
175
Rob Herring81180812012-08-23 11:31:46 +0000176 dev = dev_desc->dev;
177 ext4fs_set_blk_dev(dev_desc, &info);
Uma Shankara1596432012-05-25 21:21:44 +0530178
Rob Herring81180812012-08-23 11:31:46 +0000179 if (!ext4fs_mount(info.size)) {
180 printf("** Bad ext2 partition or disk - %s %d:%d **\n",
Uma Shankara1596432012-05-25 21:21:44 +0530181 argv[1], dev, part);
182 ext4fs_close();
183 goto fail;
184 }
185
186 if (ext4fs_ls(filename)) {
187 printf("** Error extfs_ls() **\n");
188 ext4fs_close();
189 goto fail;
190 };
191
192 ext4fs_close();
Uma Shankara1596432012-05-25 21:21:44 +0530193 return 0;
194
195fail:
Uma Shankara1596432012-05-25 21:21:44 +0530196 return 1;
197}