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Kyungmin Parkd7e8ce12007-09-10 17:15:14 +09001/*
2 * U-Boot command for OneNAND support
3 *
4 * Copyright (C) 2005-2007 Samsung Electronics
5 * Kyungmin Park <kyungmin.park@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <common.h>
13#include <command.h>
14
15#ifdef CONFIG_CMD_ONENAND
16
17#include <linux/mtd/compat.h>
18#include <linux/mtd/mtd.h>
19#include <linux/mtd/onenand.h>
20
21#include <asm/io.h>
22
23extern struct mtd_info onenand_mtd;
24extern struct onenand_chip onenand_chip;
25
26int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
27{
28 int ret = 0;
29
30 switch (argc) {
31 case 0:
32 case 1:
33 printf("Usage:\n%s\n", cmdtp->usage);
34 return 1;
35
36 case 2:
37 if (strncmp(argv[1], "open", 4) == 0) {
38 onenand_init();
39 return 0;
40 }
41 onenand_print_device_info(onenand_chip.device_id, 1);
42 return 0;
43
44 default:
45 /* At least 4 args */
46 if (strncmp(argv[1], "erase", 5) == 0) {
Kyungmin Parka9da2b42008-03-31 10:40:19 +090047 struct erase_info instr = {
48 .callback = NULL,
49 };
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090050 ulong start, end;
51 ulong block;
Kyungmin Parka9da2b42008-03-31 10:40:19 +090052 char *endtail;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090053
Kyungmin Parka9da2b42008-03-31 10:40:19 +090054 if (strncmp(argv[2], "block", 5) == 0) {
55 start = simple_strtoul(argv[3], NULL, 10);
56 endtail = strchr(argv[3], '-');
57 end = simple_strtoul(endtail + 1, NULL, 10);
58 } else {
59 start = simple_strtoul(argv[2], NULL, 10);
60 end = simple_strtoul(argv[3], NULL, 10);
61 start -= (unsigned long)onenand_chip.base;
62 end -= (unsigned long)onenand_chip.base;
63
64 start >>= onenand_chip.erase_shift;
65 end >>= onenand_chip.erase_shift;
66 /* Don't include the end block */
67 end--;
68 }
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090069
70 if (!end || end < 0)
71 end = start;
72
Jean-Christophe PLAGNIOL-VILLARD0a5676b2008-07-12 14:36:34 +020073 printf("Erase block from %lu to %lu\n", start, end);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090074
75 for (block = start; block <= end; block++) {
76 instr.addr = block << onenand_chip.erase_shift;
77 instr.len = 1 << onenand_chip.erase_shift;
78 ret = onenand_erase(&onenand_mtd, &instr);
79 if (ret) {
Jean-Christophe PLAGNIOL-VILLARD0a5676b2008-07-12 14:36:34 +020080 printf("erase failed %lu\n", block);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090081 break;
82 }
83 }
84
85 return 0;
86 }
87
88 if (strncmp(argv[1], "read", 4) == 0) {
89 ulong addr = simple_strtoul(argv[2], NULL, 16);
90 ulong ofs = simple_strtoul(argv[3], NULL, 16);
91 size_t len = simple_strtoul(argv[4], NULL, 16);
92 size_t retlen = 0;
93 int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1;
94
95 ofs -= (unsigned long)onenand_chip.base;
96
97 if (oob)
98 onenand_read_oob(&onenand_mtd, ofs, len,
99 &retlen, (u_char *) addr);
100 else
101 onenand_read(&onenand_mtd, ofs, len, &retlen,
102 (u_char *) addr);
103 printf("Done\n");
104
105 return 0;
106 }
107
108 if (strncmp(argv[1], "write", 5) == 0) {
109 ulong addr = simple_strtoul(argv[2], NULL, 16);
110 ulong ofs = simple_strtoul(argv[3], NULL, 16);
111 size_t len = simple_strtoul(argv[4], NULL, 16);
112 size_t retlen = 0;
113
114 ofs -= (unsigned long)onenand_chip.base;
115
116 onenand_write(&onenand_mtd, ofs, len, &retlen,
117 (u_char *) addr);
118 printf("Done\n");
119
120 return 0;
121 }
122
123 if (strncmp(argv[1], "block", 5) == 0) {
124 ulong addr = simple_strtoul(argv[2], NULL, 16);
125 ulong block = simple_strtoul(argv[3], NULL, 10);
126 ulong page = simple_strtoul(argv[4], NULL, 10);
127 size_t len = simple_strtol(argv[5], NULL, 10);
128 size_t retlen = 0;
129 ulong ofs;
130 int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1;
131
132 ofs = block << onenand_chip.erase_shift;
133 if (page)
134 ofs += page << onenand_chip.page_shift;
135
136 if (!len) {
137 if (oob)
138 len = 64;
139 else
140 len = 512;
141 }
142
143 if (oob)
144 onenand_read_oob(&onenand_mtd, ofs, len,
145 &retlen, (u_char *) addr);
146 else
147 onenand_read(&onenand_mtd, ofs, len, &retlen,
148 (u_char *) addr);
149 return 0;
150 }
151
152 break;
153 }
154
155 return 0;
156}
157
158U_BOOT_CMD(
159 onenand, 6, 1, do_onenand,
160 "onenand - OneNAND sub-system\n",
161 "info - show available OneNAND devices\n"
162 "onenand read[.oob] addr ofs len - read data at ofs with len to addr\n"
163 "onenand write addr ofs len - write data at ofs with len from addr\n"
164 "onenand erase saddr eaddr - erase block start addr to end addr\n"
165 "onenand block[.oob] addr block [page] [len] - "
166 "read data with (block [, page]) to addr"
167);
168
169#endif /* CONFIG_CMD_ONENAND */