common/cmd_mmc.c

   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 static int curr_device = -1;
  29 #ifndef CONFIG_GENERIC_MMC
  30 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  31 {
  32         int dev;
  33
  34         if (argc < 2)
  35                 return cmd_usage(cmdtp);
  36
  37         if (strcmp(argv[1], "init") == 0) {
  38                 if (argc == 2) {
  39                         if (curr_device < 0)
  40                                 dev = 1;
  41                         else
  42                                 dev = curr_device;
  43                 } else if (argc == 3) {
  44                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  45                 } else {
  46                         return cmd_usage(cmdtp);
  47                 }
  48
  49                 if (mmc_legacy_init(dev) != 0) {
  50                         puts("No MMC card found\n");
  51                         return 1;
  52                 }
  53
  54                 curr_device = dev;
  55                 printf("mmc%d is available\n", curr_device);
  56         } else if (strcmp(argv[1], "device") == 0) {
  57                 if (argc == 2) {
  58                         if (curr_device < 0) {
  59                                 puts("No MMC device available\n");
  60                                 return 1;
  61                         }
  62                 } else if (argc == 3) {
  63                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  64
  65 #ifdef CONFIG_SYS_MMC_SET_DEV
  66                         if (mmc_set_dev(dev) != 0)
  67                                 return 1;
  68 #endif
  69                         curr_device = dev;
  70                 } else {
  71                         return cmd_usage(cmdtp);
  72                 }
  73
  74                 printf("mmc%d is current device\n", curr_device);
  75         } else {
  76                 return cmd_usage(cmdtp);
  77         }
  78
  79         return 0;
  80 }
  81
  82 U_BOOT_CMD(
  83         mmc, 3, 1, do_mmc,
  84         "MMC sub-system",
  85         "init [dev] - init MMC sub system\n"
  86         "mmc device [dev] - show or set current device"
  87 );
  88 #else /* !CONFIG_GENERIC_MMC */
  89
  90 static void print_mmcinfo(struct mmc *mmc)
  91 {
  92         printf("Device: %s\n", mmc->name);
  93         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  94         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  95         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  96                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  97                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  98
  99         printf("Tran Speed: %d\n", mmc->tran_speed);
 100         printf("Rd Block Len: %d\n", mmc->read_bl_len);
 101
 102         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 103                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
 104
 105         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 106         puts("Capacity: ");
 107         print_size(mmc->capacity, "\n");
 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
 116         if (curr_device < 0) {
 117                 if (get_mmc_num() > 0)
 118                         curr_device = 0;
 119                 else {
 120                         puts("No MMC device available\n");
 121                         return 1;
 122                 }
 123         }
 124
 125         mmc = find_mmc_device(curr_device);
 126
 127         if (mmc) {
 128                 mmc_init(mmc);
 129
 130                 print_mmcinfo(mmc);
 131                 return 0;
 132         } else {
 133                 printf("no mmc device at slot %x\n", curr_device);
 134                 return 1;
 135         }
 136 }
 137
 138 U_BOOT_CMD(
 139         mmcinfo, 1, 0, do_mmcinfo,
 140         "display MMC info",
 141         "    - device number of the device to dislay info of\n"
 142         ""
 143 );
 144
 145 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 146 {
 147         if (argc < 2)
 148                 return cmd_usage(cmdtp);
 149
 150         if (curr_device < 0) {
 151                 if (get_mmc_num() > 0)
 152                         curr_device = 0;
 153                 else {
 154                         puts("No MMC device available\n");
 155                         return 1;
 156                 }
 157         }
 158
 159         if (strcmp(argv[1], "rescan") == 0) {
 160                 struct mmc *mmc = find_mmc_device(curr_device);
 161
 162                 if (!mmc) {
 163                         printf("no mmc device at slot %x\n", curr_device);
 164                         return 1;
 165                 }
 166
 167                 mmc->has_init = 0;
 168                 mmc_init(mmc);
 169
 170                 return 0;
 171         } else if (strncmp(argv[1], "part", 4) == 0) {
 172                 block_dev_desc_t *mmc_dev;
 173                 struct mmc *mmc = find_mmc_device(curr_device);
 174
 175                 if (!mmc) {
 176                         printf("no mmc device at slot %x\n", curr_device);
 177                         return 1;
 178                 }
 179                 mmc_init(mmc);
 180                 mmc_dev = mmc_get_dev(curr_device);
 181                 if (mmc_dev != NULL &&
 182                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
 183                         print_part(mmc_dev);
 184                         return 0;
 185                 }
 186
 187                 puts("get mmc type error!\n");
 188                 return 1;
 189         } else if (strcmp(argv[1], "list") == 0) {
 190                 print_mmc_devices('\n');
 191                 return 0;
 192         } else if (strcmp(argv[1], "dev") == 0) {
 193                 int dev, part = -1;
 194                 struct mmc *mmc;
 195
 196                 if (argc == 2)
 197                         dev = curr_device;
 198                 else if (argc == 3)
 199                         dev = simple_strtoul(argv[2], NULL, 10);
 200                 else if (argc == 4) {
 201                         dev = (int)simple_strtoul(argv[2], NULL, 10);
 202                         part = (int)simple_strtoul(argv[3], NULL, 10);
 203                         if (part > PART_ACCESS_MASK) {
 204                                 printf("#part_num shouldn't be larger"
 205                                         " than %d\n", PART_ACCESS_MASK);
 206                                 return 1;
 207                         }
 208                 } else
 209                         return cmd_usage(cmdtp);
 210
 211                 mmc = find_mmc_device(dev);
 212                 if (!mmc) {
 213                         printf("no mmc device at slot %x\n", dev);
 214                         return 1;
 215                 }
 216
 217                 mmc_init(mmc);
 218                 if (part != -1) {
 219                         int ret;
 220                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 221                                 printf("Card doesn't support part_switch\n");
 222                                 return 1;
 223                         }
 224
 225                         if (part != mmc->part_num) {
 226                                 ret = mmc_switch_part(dev, part);
 227                                 if (!ret)
 228                                         mmc->part_num = part;
 229
 230                                 printf("switch to partions #%d, %s\n",
 231                                                 part, (!ret) ? "OK" : "ERROR");
 232                         }
 233                 }
 234                 curr_device = dev;
 235                 if (mmc->part_config == MMCPART_NOAVAILABLE)
 236                         printf("mmc%d is current device\n", curr_device);
 237                 else
 238                         printf("mmc%d(part %d) is current device\n",
 239                                 curr_device, mmc->part_num);
 240
 241                 return 0;
 242         } else if (strcmp(argv[1], "read") == 0) {
 243                 void *addr = (void *)simple_strtoul(argv[2], NULL, 16);
 244                 u32 cnt = simple_strtoul(argv[4], NULL, 16);
 245                 u32 n;
 246                 u32 blk = simple_strtoul(argv[3], NULL, 16);
 247                 struct mmc *mmc = find_mmc_device(curr_device);
 248
 249                 if (!mmc) {
 250                         printf("no mmc device at slot %x\n", curr_device);
 251                         return 1;
 252                 }
 253
 254                 printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 255                                 curr_device, blk, cnt);
 256
 257                 mmc_init(mmc);
 258
 259                 n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
 260
 261                 /* flush cache after read */
 262                 flush_cache((ulong)addr, cnt * 512); /* FIXME */
 263
 264                 printf("%d blocks read: %s\n",
 265                                 n, (n==cnt) ? "OK" : "ERROR");
 266                 return (n == cnt) ? 0 : 1;
 267         } else if (strcmp(argv[1], "write") == 0) {
 268                 void *addr = (void *)simple_strtoul(argv[2], NULL, 16);
 269                 u32 cnt = simple_strtoul(argv[4], NULL, 16);
 270                 u32 n;
 271                 struct mmc *mmc = find_mmc_device(curr_device);
 272
 273                 int blk = simple_strtoul(argv[3], NULL, 16);
 274
 275                 if (!mmc) {
 276                         printf("no mmc device at slot %x\n", curr_device);
 277                         return 1;
 278                 }
 279
 280                 printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 281                                 curr_device, blk, cnt);
 282
 283                 mmc_init(mmc);
 284
 285                 n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
 286
 287                 printf("%d blocks written: %s\n",
 288                                 n, (n == cnt) ? "OK" : "ERROR");
 289                 return (n == cnt) ? 0 : 1;
 290         }
 291
 292         return cmd_usage(cmdtp);
 293 }
 294
 295 U_BOOT_CMD(
 296         mmc, 6, 1, do_mmcops,
 297         "MMC sub system",
 298         "read addr blk# cnt\n"
 299         "mmc write addr blk# cnt\n"
 300         "mmc rescan\n"
 301         "mmc part - lists available partition on current mmc device\n"
 302         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 303         "mmc list - lists available devices");
 304 #endif