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 * const 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 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         printf("Capacity: %lld\n", mmc->capacity);
 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         int dev_num;
 121
 122         if (argc < 2)
 123                 dev_num = 0;
 124         else
 125                 dev_num = simple_strtoul(argv[1], NULL, 0);
 126
 127         mmc = find_mmc_device(dev_num);
 128
 129         if (mmc) {
 130                 mmc_init(mmc);
 131
 132                 print_mmcinfo(mmc);
 133         }
 134
 135         return 0;
 136 }
 137
 138 U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
 139         "mmcinfo <dev num>-- display MMC info",
 140         ""
 141 );
 142
 143 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 144 {
 145         int rc = 0;
 146
 147         switch (argc) {
 148         case 3:
 149                 if (strcmp(argv[1], "rescan") == 0) {
 150                         int dev = simple_strtoul(argv[2], NULL, 10);
 151                         struct mmc *mmc = find_mmc_device(dev);
 152
 153                         if (!mmc)
 154                                 return 1;
 155
 156                         mmc_init(mmc);
 157
 158                         return 0;
 159                 }
 160
 161         case 0:
 162         case 1:
 163         case 4:
 164                 printf("Usage:\n%s\n", cmdtp->usage);
 165                 return 1;
 166
 167         case 2:
 168                 if (!strcmp(argv[1], "list")) {
 169                         print_mmc_devices('\n');
 170                         return 0;
 171                 }
 172                 return 1;
 173         default: /* at least 5 args */
 174                 if (strcmp(argv[1], "read") == 0) {
 175                         int dev = simple_strtoul(argv[2], NULL, 10);
 176                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 177                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 178                         u32 n;
 179                         u32 blk = simple_strtoul(argv[4], NULL, 16);
 180                         struct mmc *mmc = find_mmc_device(dev);
 181
 182                         if (!mmc)
 183                                 return 1;
 184
 185                         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 186                                 dev, blk, cnt);
 187
 188                         mmc_init(mmc);
 189
 190                         n = mmc->block_dev.block_read(dev, blk, cnt, addr);
 191
 192                         /* flush cache after read */
 193                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 194
 195                         printf("%d blocks read: %s\n",
 196                                 n, (n==cnt) ? "OK" : "ERROR");
 197                         return (n == cnt) ? 0 : 1;
 198                 } else if (strcmp(argv[1], "write") == 0) {
 199                         int dev = simple_strtoul(argv[2], NULL, 10);
 200                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 201                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 202                         u32 n;
 203                         struct mmc *mmc = find_mmc_device(dev);
 204
 205                         int blk = simple_strtoul(argv[4], NULL, 16);
 206
 207                         if (!mmc)
 208                                 return 1;
 209
 210                         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 211                                 dev, blk, cnt);
 212
 213                         mmc_init(mmc);
 214
 215                         n = mmc->block_dev.block_write(dev, blk, cnt, addr);
 216
 217                         printf("%d blocks written: %s\n",
 218                                 n, (n == cnt) ? "OK" : "ERROR");
 219                         return (n == cnt) ? 0 : 1;
 220                 } else {
 221                         printf("Usage:\n%s\n", cmdtp->usage);
 222                         rc = 1;
 223                 }
 224
 225                 return rc;
 226         }
 227 }
 228
 229 U_BOOT_CMD(
 230         mmc, 6, 1, do_mmcops,
 231         "MMC sub system",
 232         "read <device num> addr blk# cnt\n"
 233         "mmc write <device num> addr blk# cnt\n"
 234         "mmc rescan <device num>\n"
 235         "mmc list - lists available devices");
 236 #endif