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 enum mmc_state {
  91         MMC_INVALID,
  92         MMC_READ,
  93         MMC_WRITE,
  94 };
  95 static void print_mmcinfo(struct mmc *mmc)
  96 {
  97         printf("Device: %s\n", mmc->name);
  98         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  99         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
 100         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
 101                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
 102                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
 103
 104         printf("Tran Speed: %d\n", mmc->tran_speed);
 105         printf("Rd Block Len: %d\n", mmc->read_bl_len);
 106
 107         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 108                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
 109
 110         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 111         puts("Capacity: ");
 112         print_size(mmc->capacity, "\n");
 113
 114         printf("Bus Width: %d-bit\n", mmc->bus_width);
 115 }
 116
 117 int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 118 {
 119         struct mmc *mmc;
 120
 121         if (curr_device < 0) {
 122                 if (get_mmc_num() > 0)
 123                         curr_device = 0;
 124                 else {
 125                         puts("No MMC device available\n");
 126                         return 1;
 127                 }
 128         }
 129
 130         mmc = find_mmc_device(curr_device);
 131
 132         if (mmc) {
 133                 mmc_init(mmc);
 134
 135                 print_mmcinfo(mmc);
 136                 return 0;
 137         } else {
 138                 printf("no mmc device at slot %x\n", curr_device);
 139                 return 1;
 140         }
 141 }
 142
 143 U_BOOT_CMD(
 144         mmcinfo, 1, 0, do_mmcinfo,
 145         "display MMC info",
 146         "    - device number of the device to dislay info of\n"
 147         ""
 148 );
 149
 150 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_usage(cmdtp);
 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                 mmc_init(mmc);
 176
 177                 return 0;
 178         } else if (strncmp(argv[1], "part", 4) == 0) {
 179                 block_dev_desc_t *mmc_dev;
 180                 struct mmc *mmc = find_mmc_device(curr_device);
 181
 182                 if (!mmc) {
 183                         printf("no mmc device at slot %x\n", curr_device);
 184                         return 1;
 185                 }
 186                 mmc_init(mmc);
 187                 mmc_dev = mmc_get_dev(curr_device);
 188                 if (mmc_dev != NULL &&
 189                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
 190                         print_part(mmc_dev);
 191                         return 0;
 192                 }
 193
 194                 puts("get mmc type error!\n");
 195                 return 1;
 196         } else if (strcmp(argv[1], "list") == 0) {
 197                 print_mmc_devices('\n');
 198                 return 0;
 199         } else if (strcmp(argv[1], "dev") == 0) {
 200                 int dev, part = -1;
 201                 struct mmc *mmc;
 202
 203                 if (argc == 2)
 204                         dev = curr_device;
 205                 else if (argc == 3)
 206                         dev = simple_strtoul(argv[2], NULL, 10);
 207                 else if (argc == 4) {
 208                         dev = (int)simple_strtoul(argv[2], NULL, 10);
 209                         part = (int)simple_strtoul(argv[3], NULL, 10);
 210                         if (part > PART_ACCESS_MASK) {
 211                                 printf("#part_num shouldn't be larger"
 212                                         " than %d\n", PART_ACCESS_MASK);
 213                                 return 1;
 214                         }
 215                 } else
 216                         return cmd_usage(cmdtp);
 217
 218                 mmc = find_mmc_device(dev);
 219                 if (!mmc) {
 220                         printf("no mmc device at slot %x\n", dev);
 221                         return 1;
 222                 }
 223
 224                 mmc_init(mmc);
 225                 if (part != -1) {
 226                         int ret;
 227                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 228                                 printf("Card doesn't support part_switch\n");
 229                                 return 1;
 230                         }
 231
 232                         if (part != mmc->part_num) {
 233                                 ret = mmc_switch_part(dev, part);
 234                                 if (!ret)
 235                                         mmc->part_num = part;
 236
 237                                 printf("switch to partions #%d, %s\n",
 238                                                 part, (!ret) ? "OK" : "ERROR");
 239                         }
 240                 }
 241                 curr_device = dev;
 242                 if (mmc->part_config == MMCPART_NOAVAILABLE)
 243                         printf("mmc%d is current device\n", curr_device);
 244                 else
 245                         printf("mmc%d(part %d) is current device\n",
 246                                 curr_device, mmc->part_num);
 247
 248                 return 0;
 249         }
 250
 251         if (strcmp(argv[1], "read") == 0)
 252                 state = MMC_READ;
 253         else if (strcmp(argv[1], "write") == 0)
 254                 state = MMC_WRITE;
 255         else
 256                 state = MMC_INVALID;
 257
 258         if (state != MMC_INVALID) {
 259                 struct mmc *mmc = find_mmc_device(curr_device);
 260                 void *addr = (void *)simple_strtoul(argv[2], NULL, 16);
 261                 u32 blk = simple_strtoul(argv[3], NULL, 16);
 262                 u32 cnt = simple_strtoul(argv[4], NULL, 16);
 263                 u32 n;
 264
 265                 if (!mmc) {
 266                         printf("no mmc device at slot %x\n", curr_device);
 267                         return 1;
 268                 }
 269
 270                 printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
 271                                 argv[1], curr_device, blk, cnt);
 272
 273                 mmc_init(mmc);
 274
 275                 switch (state) {
 276                 case MMC_READ:
 277                         n = mmc->block_dev.block_read(curr_device, blk,
 278                                                       cnt, addr);
 279                         /* flush cache after read */
 280                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 281                         break;
 282                 case MMC_WRITE:
 283                         n = mmc->block_dev.block_write(curr_device, blk,
 284                                                       cnt, addr);
 285                         break;
 286                 default:
 287                         BUG();
 288                 }
 289
 290                 printf("%d blocks %s: %s\n",
 291                                 n, argv[1], (n == cnt) ? "OK" : "ERROR");
 292                 return (n == cnt) ? 0 : 1;
 293         }
 294
 295         return cmd_usage(cmdtp);
 296 }
 297
 298 U_BOOT_CMD(
 299         mmc, 6, 1, do_mmcops,
 300         "MMC sub system",
 301         "read addr blk# cnt\n"
 302         "mmc write addr blk# cnt\n"
 303         "mmc rescan\n"
 304         "mmc part - lists available partition on current mmc device\n"
 305         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 306         "mmc list - lists available devices");
 307 #endif