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 #ifndef CONFIG_GENERIC_MMC
  29 static int curr_device = -1;
  30
  31 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  32 {
  33         int dev;
  34
  35         if (argc < 2) {
  36                 cmd_usage(cmdtp);
  37                 return 1;
  38         }
  39
  40         if (strcmp(argv[1], "init") == 0) {
  41                 if (argc == 2) {
  42                         if (curr_device < 0)
  43                                 dev = 1;
  44                         else
  45                                 dev = curr_device;
  46                 } else if (argc == 3) {
  47                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  48                 } else {
  49                         cmd_usage(cmdtp);
  50                         return 1;
  51                 }
  52
  53                 if (mmc_legacy_init(dev) != 0) {
  54                         puts("No MMC card found\n");
  55                         return 1;
  56                 }
  57
  58                 curr_device = dev;
  59                 printf("mmc%d is available\n", curr_device);
  60         } else if (strcmp(argv[1], "device") == 0) {
  61                 if (argc == 2) {
  62                         if (curr_device < 0) {
  63                                 puts("No MMC device available\n");
  64                                 return 1;
  65                         }
  66                 } else if (argc == 3) {
  67                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  68
  69 #ifdef CONFIG_SYS_MMC_SET_DEV
  70                         if (mmc_set_dev(dev) != 0)
  71                                 return 1;
  72 #endif
  73                         curr_device = dev;
  74                 } else {
  75                         cmd_usage(cmdtp);
  76                         return 1;
  77                 }
  78
  79                 printf("mmc%d is current device\n", curr_device);
  80         } else {
  81                 cmd_usage(cmdtp);
  82                 return 1;
  83         }
  84
  85         return 0;
  86 }
  87
  88 U_BOOT_CMD(
  89         mmc, 3, 1, do_mmc,
  90         "MMC sub-system",
  91         "init [dev] - init MMC sub system\n"
  92         "mmc device [dev] - show or set current device"
  93 );
  94 #else /* !CONFIG_GENERIC_MMC */
  95
  96 #ifdef CONFIG_BOOT_PARTITION_ACCESS
  97 #define MMC_PARTITION_SWITCH(mmc, part, enable_boot) \
  98         do { \
  99                 if (IS_SD(mmc)) {       \
 100                         if (part > 1)   {\
 101                                 printf( \
 102                                 "\nError: SD partition can only be 0 or 1\n");\
 103                                 return 1;       \
 104                         }       \
 105                         if (sd_switch_partition(mmc, part) < 0) {       \
 106                                 if (part > 0) { \
 107                                         printf("\nError: Unable to switch SD "\
 108                                         "partition\n");\
 109                                         return 1;       \
 110                                 }       \
 111                         }       \
 112                 } else {        \
 113                         if (mmc_switch_partition(mmc, part, enable_boot) \
 114                                 < 0) {  \
 115                                 printf("Error: Fail to switch " \
 116                                         "partition to %d\n", part);     \
 117                                 return 1;       \
 118                         }       \
 119                 } \
 120         } while (0)
 121 #endif
 122
 123 static void print_mmcinfo(struct mmc *mmc)
 124 {
 125         printf("Device: %s\n", mmc->name);
 126         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
 127         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
 128         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
 129                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
 130                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
 131
 132         printf("Tran Speed: %d\n", mmc->tran_speed);
 133         printf("Rd Block Len: %d\n", mmc->read_bl_len);
 134
 135         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 136                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
 137
 138         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 139         printf("Capacity: %lld\n", mmc->capacity);
 140
 141 #ifdef CONFIG_EMMC_DDR_MODE
 142         if (mmc->bus_width == EMMC_MODE_4BIT_DDR ||
 143                 mmc->bus_width == EMMC_MODE_8BIT_DDR)
 144                 printf("Bus Width: %d-bit DDR\n", (mmc->bus_width >> 8));
 145         else
 146 #endif
 147         printf("Bus Width: %d-bit\n", mmc->bus_width);
 148 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 149         if (mmc->boot_size_mult == 0) {
 150                 printf("Boot Partition Size: %s\n", "No boot partition available");
 151         } else {
 152                 printf("Boot Partition Size: %5dKB\n", mmc->boot_size_mult * 128);
 153
 154                 printf("Current Partition for boot: ");
 155                 switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ENABLE_MASK) {
 156                 case EXT_CSD_BOOT_PARTITION_DISABLE:
 157                         printf("Not bootable\n");
 158                         break;
 159                 case EXT_CSD_BOOT_PARTITION_PART1:
 160                         printf("Boot partition 1\n");
 161                         break;
 162                 case EXT_CSD_BOOT_PARTITION_PART2:
 163                         printf("Boot partition 2\n");
 164                         break;
 165                 case EXT_CSD_BOOT_PARTITION_USER:
 166                         printf("User area\n");
 167                         break;
 168                 default:
 169                         printf("Unknown\n");
 170                         break;
 171                 }
 172         }
 173 #endif
 174 }
 175
 176 int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 177 {
 178         struct mmc *mmc;
 179         int dev_num;
 180
 181         if (argc < 2)
 182                 dev_num = 0;
 183         else
 184                 dev_num = simple_strtoul(argv[1], NULL, 0);
 185
 186         mmc = find_mmc_device(dev_num);
 187
 188         if (mmc) {
 189                 if (mmc_init(mmc))
 190                         puts("MMC card init failed!\n");
 191                 else
 192                         print_mmcinfo(mmc);
 193         }
 194
 195         return 0;
 196 }
 197
 198 U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
 199         "mmcinfo <dev num>-- display MMC info",
 200         ""
 201 );
 202
 203 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 204 {
 205         int rc = 0;
 206 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 207         u32 part = 0;
 208 #endif
 209
 210         switch (argc) {
 211         case 3:
 212                 if (strcmp(argv[1], "rescan") == 0) {
 213                         int dev = simple_strtoul(argv[2], NULL, 10);
 214                         struct mmc *mmc = find_mmc_device(dev);
 215
 216                         if (!mmc)
 217                                 return 1;
 218
 219                         mmc_init(mmc);
 220
 221                         return 0;
 222                 }
 223
 224         case 0:
 225         case 1:
 226         case 4:
 227                 printf("Usage:\n%s\n", cmdtp->usage);
 228                 return 1;
 229
 230         case 2:
 231                 if (!strcmp(argv[1], "list")) {
 232                         print_mmc_devices('\n');
 233                         return 0;
 234                 }
 235                 return 1;
 236 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 237         case 7: /* Fall through */
 238                 part = simple_strtoul(argv[6], NULL, 10);
 239 #endif
 240         default: /* at least 5 args */
 241                 if (strcmp(argv[1], "read") == 0) {
 242                         int dev = simple_strtoul(argv[2], NULL, 10);
 243                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 244                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 245                         u32 n;
 246                         u32 blk = simple_strtoul(argv[4], NULL, 16);
 247
 248                         struct mmc *mmc = find_mmc_device(dev);
 249
 250                         if (!mmc)
 251                                 return 1;
 252
 253 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 254                         printf("\nMMC read: dev # %d, block # %d, "
 255                                 "count %d partition # %d ... \n",
 256                                 dev, blk, cnt, part);
 257 #else
 258                         printf("\nMMC read: dev # %d, block # %d,"
 259                                 "count %d ... \n", dev, blk, cnt);
 260 #endif
 261
 262                         mmc_init(mmc);
 263
 264 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 265                         if (((mmc->boot_config &
 266                                 EXT_CSD_BOOT_PARTITION_ACCESS_MASK) != part)
 267                                 || IS_SD(mmc)) {
 268                                 /*
 269                                  * After mmc_init, we now know whether
 270                                  * this is a eSD/eMMC which support boot
 271                                  * partition
 272                                  */
 273                                 MMC_PARTITION_SWITCH(mmc, part, 0);
 274                         }
 275 #endif
 276
 277                         n = mmc->block_dev.block_read(dev, blk, cnt, addr);
 278
 279                         /* flush cache after read */
 280                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 281
 282                         printf("%d blocks read: %s\n",
 283                                 n, (n==cnt) ? "OK" : "ERROR");
 284                         return (n == cnt) ? 0 : 1;
 285                 } else if (strcmp(argv[1], "write") == 0) {
 286                         int dev = simple_strtoul(argv[2], NULL, 10);
 287                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 288                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 289                         u32 n;
 290
 291                         struct mmc *mmc = find_mmc_device(dev);
 292
 293                         int blk = simple_strtoul(argv[4], NULL, 16);
 294
 295                         if (!mmc)
 296                                 return 1;
 297
 298 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 299                         printf("\nMMC write: dev # %d, block # %d, "
 300                                 "count %d, partition # %d ... \n",
 301                                 dev, blk, cnt, part);
 302 #else
 303                         printf("\nMMC write: dev # %d, block # %d, "
 304                                 "count %d ... \n",
 305                                 dev, blk, cnt);
 306 #endif
 307
 308                         mmc_init(mmc);
 309
 310 #ifdef CONFIG_BOOT_PARTITION_ACCESS
 311                         if (((mmc->boot_config &
 312                                 EXT_CSD_BOOT_PARTITION_ACCESS_MASK) != part)
 313                                 || IS_SD(mmc)) {
 314                                 /*
 315                                  * After mmc_init, we now know whether this is a
 316                                  * eSD/eMMC which support boot partition
 317                                  */
 318                                 MMC_PARTITION_SWITCH(mmc, part, 1);
 319                         }
 320 #endif
 321
 322                         n = mmc->block_dev.block_write(dev, blk, cnt, addr);
 323
 324                         printf("%d blocks written: %s\n",
 325                                 n, (n == cnt) ? "OK" : "ERROR");
 326                         return (n == cnt) ? 0 : 1;
 327                 } else {
 328                         printf("Usage:\n%s\n", cmdtp->usage);
 329                         rc = 1;
 330                 }
 331
 332                 return rc;
 333         }
 334 }
 335
 336 #ifndef CONFIG_BOOT_PARTITION_ACCESS
 337 U_BOOT_CMD(
 338         mmc, 6, 1, do_mmcops,
 339         "MMC sub system",
 340         "mmc read <device num> addr blk# cnt\n"
 341         "mmc write <device num> addr blk# cnt\n"
 342         "mmc rescan <device num>\n"
 343         "mmc list - lists available devices");
 344 #else
 345 U_BOOT_CMD(
 346         mmc, 7, 1, do_mmcops,
 347         "MMC sub system",
 348         "mmc read <device num> addr blk# cnt [partition]\n"
 349         "mmc write <device num> addr blk# cnt [partition]\n"
 350         "mmc rescan <device num>\n"
 351         "mmc list - lists available devices");
 352 #endif
 353 #endif
 354