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_RET_USAGE;
  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_RET_USAGE;
  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_RET_USAGE;
  72                 }
  73
  74                 printf("mmc%d is current device\n", curr_device);
  75         } else {
  76                 return CMD_RET_USAGE;
  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 enum mmc_state {
  91         MMC_INVALID,
  92         MMC_READ,
  93         MMC_WRITE,
  94         MMC_ERASE,
  95 };
  96 static void print_mmcinfo(struct mmc *mmc)
  97 {
  98         printf("Device: %s\n", mmc->name);
  99         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
 100         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
 101         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
 102                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
 103                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
 104
 105         printf("Tran Speed: %d\n", mmc->tran_speed);
 106         printf("Rd Block Len: %d\n", mmc->read_bl_len);
 107
 108         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 109                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
 110
 111         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 112         puts("Capacity: ");
 113         print_size(mmc->capacity, "\n");
 114
 115         printf("Bus Width: %d-bit\n", mmc->bus_width);
 116 }
 117
 118 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 119 {
 120         struct mmc *mmc;
 121
 122         if (curr_device < 0) {
 123                 if (get_mmc_num() > 0)
 124                         curr_device = 0;
 125                 else {
 126                         puts("No MMC device available\n");
 127                         return 1;
 128                 }
 129         }
 130
 131         mmc = find_mmc_device(curr_device);
 132
 133         if (mmc) {
 134                 mmc_init(mmc);
 135
 136                 print_mmcinfo(mmc);
 137                 return 0;
 138         } else {
 139                 printf("no mmc device at slot %x\n", curr_device);
 140                 return 1;
 141         }
 142 }
 143
 144 U_BOOT_CMD(
 145         mmcinfo, 1, 0, do_mmcinfo,
 146         "display MMC info",
 147         "- display info of the current MMC device"
 148 );
 149
 150 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 151 {
 152         enum mmc_state state;
 153
 154         if (argc < 2)
 155                 return CMD_RET_USAGE;
 156
 157         if (curr_device < 0) {
 158                 if (get_mmc_num() > 0)
 159                         curr_device = 0;
 160                 else {
 161                         puts("No MMC device available\n");
 162                         return 1;
 163                 }
 164         }
 165
 166         if (strcmp(argv[1], "rescan") == 0) {
 167                 struct mmc *mmc = find_mmc_device(curr_device);
 168
 169                 if (!mmc) {
 170                         printf("no mmc device at slot %x\n", curr_device);
 171                         return 1;
 172                 }
 173
 174                 mmc->has_init = 0;
 175
 176                 if (mmc_init(mmc))
 177                         return 1;
 178                 else
 179                         return 0;
 180         } else if (strncmp(argv[1], "part", 4) == 0) {
 181                 block_dev_desc_t *mmc_dev;
 182                 struct mmc *mmc = find_mmc_device(curr_device);
 183
 184                 if (!mmc) {
 185                         printf("no mmc device at slot %x\n", curr_device);
 186                         return 1;
 187                 }
 188                 mmc_init(mmc);
 189                 mmc_dev = mmc_get_dev(curr_device);
 190                 if (mmc_dev != NULL &&
 191                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
 192                         print_part(mmc_dev);
 193                         return 0;
 194                 }
 195
 196                 puts("get mmc type error!\n");
 197                 return 1;
 198         } else if (strcmp(argv[1], "list") == 0) {
 199                 print_mmc_devices('\n');
 200                 return 0;
 201         } else if (strcmp(argv[1], "dev") == 0) {
 202                 int dev, part = -1;
 203                 struct mmc *mmc;
 204
 205                 if (argc == 2)
 206                         dev = curr_device;
 207                 else if (argc == 3)
 208                         dev = simple_strtoul(argv[2], NULL, 10);
 209                 else if (argc == 4) {
 210                         dev = (int)simple_strtoul(argv[2], NULL, 10);
 211                         part = (int)simple_strtoul(argv[3], NULL, 10);
 212                         if (part > PART_ACCESS_MASK) {
 213                                 printf("#part_num shouldn't be larger"
 214                                         " than %d\n", PART_ACCESS_MASK);
 215                                 return 1;
 216                         }
 217                 } else
 218                         return CMD_RET_USAGE;
 219
 220                 mmc = find_mmc_device(dev);
 221                 if (!mmc) {
 222                         printf("no mmc device at slot %x\n", dev);
 223                         return 1;
 224                 }
 225
 226                 mmc_init(mmc);
 227                 if (part != -1) {
 228                         int ret;
 229                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 230                                 printf("Card doesn't support part_switch\n");
 231                                 return 1;
 232                         }
 233
 234                         if (part != mmc->part_num) {
 235                                 ret = mmc_switch_part(dev, part);
 236                                 if (!ret)
 237                                         mmc->part_num = part;
 238
 239                                 printf("switch to partions #%d, %s\n",
 240                                                 part, (!ret) ? "OK" : "ERROR");
 241                         }
 242                 }
 243                 curr_device = dev;
 244                 if (mmc->part_config == MMCPART_NOAVAILABLE)
 245                         printf("mmc%d is current device\n", curr_device);
 246                 else
 247                         printf("mmc%d(part %d) is current device\n",
 248                                 curr_device, mmc->part_num);
 249
 250                 return 0;
 251         }
 252
 253         state = MMC_INVALID;
 254         if (argc == 5 && strcmp(argv[1], "read") == 0)
 255                 state = MMC_READ;
 256         else if (argc == 5 && strcmp(argv[1], "write") == 0)
 257                 state = MMC_WRITE;
 258         else if (argc == 4 && strcmp(argv[1], "erase") == 0)
 259                 state = MMC_ERASE;
 260
 261         if (state != MMC_INVALID) {
 262                 struct mmc *mmc = find_mmc_device(curr_device);
 263                 int idx = 2;
 264                 u32 blk, cnt, n;
 265                 void *addr;
 266
 267                 if (state != MMC_ERASE) {
 268                         addr = (void *)simple_strtoul(argv[idx], NULL, 16);
 269                         ++idx;
 270                 } else
 271                         addr = NULL;
 272                 blk = simple_strtoul(argv[idx], NULL, 16);
 273                 cnt = simple_strtoul(argv[idx + 1], 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 %s: dev # %d, block # %d, count %d ... ",
 281                                 argv[1], curr_device, blk, cnt);
 282
 283                 mmc_init(mmc);
 284
 285                 if ((state == MMC_WRITE || state == MMC_ERASE)) {
 286                         if (mmc_getwp(mmc) == 1) {
 287                                 printf("Error: card is write protected!\n");
 288                                 return 1;
 289                         }
 290                 }
 291
 292                 switch (state) {
 293                 case MMC_READ:
 294                         n = mmc->block_dev.block_read(curr_device, blk,
 295                                                       cnt, addr);
 296                         /* flush cache after read */
 297                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 298                         break;
 299                 case MMC_WRITE:
 300                         n = mmc->block_dev.block_write(curr_device, blk,
 301                                                       cnt, addr);
 302                         break;
 303                 case MMC_ERASE:
 304                         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 305                         break;
 306                 default:
 307                         BUG();
 308                 }
 309
 310                 printf("%d blocks %s: %s\n",
 311                                 n, argv[1], (n == cnt) ? "OK" : "ERROR");
 312                 return (n == cnt) ? 0 : 1;
 313         }
 314
 315         return CMD_RET_USAGE;
 316 }
 317
 318 U_BOOT_CMD(
 319         mmc, 6, 1, do_mmcops,
 320         "MMC sub system",
 321         "read addr blk# cnt\n"
 322         "mmc write addr blk# cnt\n"
 323         "mmc erase blk# cnt\n"
 324         "mmc rescan\n"
 325         "mmc part - lists available partition on current mmc device\n"
 326         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 327         "mmc list - lists available devices");
 328 #endif