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1 /*
2  * (C) Copyright 2003
3  * Kyle Harris, kharris@nexus-tech.net
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24 #include <common.h>
25 #include <command.h>
26 #include <mmc.h>
27
28 #ifndef CONFIG_GENERIC_MMC
29 static int curr_device = -1;
30
31 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
32 {
33         int dev;
34
35         if (argc < 2)
36                 return cmd_usage(cmdtp);
37
38         if (strcmp(argv[1], "init") == 0) {
39                 if (argc == 2) {
40                         if (curr_device < 0)
41                                 dev = 1;
42                         else
43                                 dev = curr_device;
44                 } else if (argc == 3) {
45                         dev = (int)simple_strtoul(argv[2], NULL, 10);
46                 } else {
47                         return cmd_usage(cmdtp);
48                 }
49
50                 if (mmc_legacy_init(dev) != 0) {
51                         puts("No MMC card found\n");
52                         return 1;
53                 }
54
55                 curr_device = dev;
56                 printf("mmc%d is available\n", curr_device);
57         } else if (strcmp(argv[1], "device") == 0) {
58                 if (argc == 2) {
59                         if (curr_device < 0) {
60                                 puts("No MMC device available\n");
61                                 return 1;
62                         }
63                 } else if (argc == 3) {
64                         dev = (int)simple_strtoul(argv[2], NULL, 10);
65
66 #ifdef CONFIG_SYS_MMC_SET_DEV
67                         if (mmc_set_dev(dev) != 0)
68                                 return 1;
69 #endif
70                         curr_device = dev;
71                 } else {
72                         return cmd_usage(cmdtp);
73                 }
74
75                 printf("mmc%d is current device\n", curr_device);
76         } else {
77                 return cmd_usage(cmdtp);
78         }
79
80         return 0;
81 }
82
83 U_BOOT_CMD(
84         mmc, 3, 1, do_mmc,
85         "MMC sub-system",
86         "init [dev] - init MMC sub system\n"
87         "mmc device [dev] - show or set current device"
88 );
89 #else /* !CONFIG_GENERIC_MMC */
90
91 static void print_mmcinfo(struct mmc *mmc)
92 {
93         printf("Device: %s\n", mmc->name);
94         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
95         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
96         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
97                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
98                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
99
100         printf("Tran Speed: %d\n", mmc->tran_speed);
101         printf("Rd Block Len: %d\n", mmc->read_bl_len);
102
103         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
104                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
105
106         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
107         printf("Capacity: %lld\n", mmc->capacity);
108
109         printf("Bus Width: %d-bit\n", mmc->bus_width);
110 }
111
112 int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
113 {
114         struct mmc *mmc;
115         int dev_num;
116
117         if (argc < 2)
118                 dev_num = 0;
119         else
120                 dev_num = simple_strtoul(argv[1], NULL, 0);
121
122         mmc = find_mmc_device(dev_num);
123
124         if (mmc) {
125                 mmc_init(mmc);
126
127                 print_mmcinfo(mmc);
128         }
129
130         return 0;
131 }
132
133 U_BOOT_CMD(
134         mmcinfo, 2, 0, do_mmcinfo,
135         "display MMC info",
136         "<dev num>\n
137         "    - device number of the device to dislay info of\n"
138         ""
139 );
140
141 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
142 {
143         int rc = 0;
144
145         switch (argc) {
146         case 3:
147                 if (strcmp(argv[1], "rescan") == 0) {
148                         int dev = simple_strtoul(argv[2], NULL, 10);
149                         struct mmc *mmc = find_mmc_device(dev);
150
151                         if (!mmc)
152                                 return 1;
153
154                         mmc_init(mmc);
155
156                         return 0;
157                 }
158
159         case 0:
160         case 1:
161         case 4:
162                 printf("Usage:\n%s\n", cmdtp->usage);
163                 return 1;
164
165         case 2:
166                 if (!strcmp(argv[1], "list")) {
167                         print_mmc_devices('\n');
168                         return 0;
169                 }
170                 return 1;
171         default: /* at least 5 args */
172                 if (strcmp(argv[1], "read") == 0) {
173                         int dev = simple_strtoul(argv[2], NULL, 10);
174                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
175                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
176                         u32 n;
177                         u32 blk = simple_strtoul(argv[4], NULL, 16);
178                         struct mmc *mmc = find_mmc_device(dev);
179
180                         if (!mmc)
181                                 return 1;
182
183                         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
184                                 dev, blk, cnt);
185
186                         mmc_init(mmc);
187
188                         n = mmc->block_dev.block_read(dev, blk, cnt, addr);
189
190                         /* flush cache after read */
191                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
192
193                         printf("%d blocks read: %s\n",
194                                 n, (n==cnt) ? "OK" : "ERROR");
195                         return (n == cnt) ? 0 : 1;
196                 } else if (strcmp(argv[1], "write") == 0) {
197                         int dev = simple_strtoul(argv[2], NULL, 10);
198                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
199                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
200                         u32 n;
201                         struct mmc *mmc = find_mmc_device(dev);
202
203                         int blk = simple_strtoul(argv[4], NULL, 16);
204
205                         if (!mmc)
206                                 return 1;
207
208                         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
209                                 dev, blk, cnt);
210
211                         mmc_init(mmc);
212
213                         n = mmc->block_dev.block_write(dev, blk, cnt, addr);
214
215                         printf("%d blocks written: %s\n",
216                                 n, (n == cnt) ? "OK" : "ERROR");
217                         return (n == cnt) ? 0 : 1;
218                 } else {
219                         printf("Usage:\n%s\n", cmdtp->usage);
220                         rc = 1;
221                 }
222
223                 return rc;
224         }
225 }
226
227 U_BOOT_CMD(
228         mmc, 6, 1, do_mmcops,
229         "MMC sub system",
230         "read <device num> addr blk# cnt\n"
231         "mmc write <device num> addr blk# cnt\n"
232         "mmc rescan <device num>\n"
233         "mmc list - lists available devices");
234 #endif