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                 return cmd_usage(cmdtp);
  37
  38         if (strcmp(argv[1], "init") == 0) {
  39                 if (argc == 2) {
  40                         if (curr_device < 0)
  41                                 dev = 1;
  42                         else
  43                                 dev = curr_device;
  44                 } else if (argc == 3) {
  45                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  46                 } else {
  47                         return cmd_usage(cmdtp);
  48                 }
  49
  50                 if (mmc_legacy_init(dev) != 0) {
  51                         puts("No MMC card found\n");
  52                         return 1;
  53                 }
  54
  55                 curr_device = dev;
  56                 printf("mmc%d is available\n", curr_device);
  57         } else if (strcmp(argv[1], "device") == 0) {
  58                 if (argc == 2) {
  59                         if (curr_device < 0) {
  60                                 puts("No MMC device available\n");
  61                                 return 1;
  62                         }
  63                 } else if (argc == 3) {
  64                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  65
  66 #ifdef CONFIG_SYS_MMC_SET_DEV
  67                         if (mmc_set_dev(dev) != 0)
  68                                 return 1;
  69 #endif
  70                         curr_device = dev;
  71                 } else {
  72                         return cmd_usage(cmdtp);
  73                 }
  74
  75                 printf("mmc%d is current device\n", curr_device);
  76         } else {
  77                 return cmd_usage(cmdtp);
  78         }
  79
  80         return 0;
  81 }
  82
  83 U_BOOT_CMD(
  84         mmc, 3, 1, do_mmc,
  85         "MMC sub-system",
  86         "init [dev] - init MMC sub system\n"
  87         "mmc device [dev] - show or set current device"
  88 );
  89 #else /* !CONFIG_GENERIC_MMC */
  90
  91 static void print_mmcinfo(struct mmc *mmc)
  92 {
  93         printf("Device: %s\n", mmc->name);
  94         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  95         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  96         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  97                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  98                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  99
 100         printf("Tran Speed: %d\n", mmc->tran_speed);
 101         printf("Rd Block Len: %d\n", mmc->read_bl_len);
 102
 103         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
 104                         (mmc->version >> 4) & 0xf, mmc->version & 0xf);
 105
 106         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 107         printf("Capacity: %lld\n", mmc->capacity);
 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         int dev_num;
 116
 117         if (argc < 2)
 118                 dev_num = 0;
 119         else
 120                 dev_num = simple_strtoul(argv[1], NULL, 0);
 121
 122         mmc = find_mmc_device(dev_num);
 123
 124         if (mmc) {
 125                 mmc_init(mmc);
 126
 127                 print_mmcinfo(mmc);
 128         }
 129
 130         return 0;
 131 }
 132
 133 U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
 134         "mmcinfo <dev num>-- display MMC info",
 135         ""
 136 );
 137
 138 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 139 {
 140         int rc = 0;
 141
 142         switch (argc) {
 143         case 3:
 144                 if (strcmp(argv[1], "rescan") == 0) {
 145                         int dev = simple_strtoul(argv[2], NULL, 10);
 146                         struct mmc *mmc = find_mmc_device(dev);
 147
 148                         if (!mmc)
 149                                 return 1;
 150
 151                         mmc_init(mmc);
 152
 153                         return 0;
 154                 }
 155
 156         case 0:
 157         case 1:
 158         case 4:
 159                 printf("Usage:\n%s\n", cmdtp->usage);
 160                 return 1;
 161
 162         case 2:
 163                 if (!strcmp(argv[1], "list")) {
 164                         print_mmc_devices('\n');
 165                         return 0;
 166                 }
 167                 return 1;
 168         default: /* at least 5 args */
 169                 if (strcmp(argv[1], "read") == 0) {
 170                         int dev = simple_strtoul(argv[2], NULL, 10);
 171                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 172                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 173                         u32 n;
 174                         u32 blk = simple_strtoul(argv[4], NULL, 16);
 175                         struct mmc *mmc = find_mmc_device(dev);
 176
 177                         if (!mmc)
 178                                 return 1;
 179
 180                         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 181                                 dev, blk, cnt);
 182
 183                         mmc_init(mmc);
 184
 185                         n = mmc->block_dev.block_read(dev, blk, cnt, addr);
 186
 187                         /* flush cache after read */
 188                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 189
 190                         printf("%d blocks read: %s\n",
 191                                 n, (n==cnt) ? "OK" : "ERROR");
 192                         return (n == cnt) ? 0 : 1;
 193                 } else if (strcmp(argv[1], "write") == 0) {
 194                         int dev = simple_strtoul(argv[2], NULL, 10);
 195                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 196                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 197                         u32 n;
 198                         struct mmc *mmc = find_mmc_device(dev);
 199
 200                         int blk = simple_strtoul(argv[4], NULL, 16);
 201
 202                         if (!mmc)
 203                                 return 1;
 204
 205                         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 206                                 dev, blk, cnt);
 207
 208                         mmc_init(mmc);
 209
 210                         n = mmc->block_dev.block_write(dev, blk, cnt, addr);
 211
 212                         printf("%d blocks written: %s\n",
 213                                 n, (n == cnt) ? "OK" : "ERROR");
 214                         return (n == cnt) ? 0 : 1;
 215                 } else {
 216                         printf("Usage:\n%s\n", cmdtp->usage);
 217                         rc = 1;
 218                 }
 219
 220                 return rc;
 221         }
 222 }
 223
 224 U_BOOT_CMD(
 225         mmc, 6, 1, do_mmcops,
 226         "MMC sub system",
 227         "read <device num> addr blk# cnt\n"
 228         "mmc write <device num> addr blk# cnt\n"
 229         "mmc rescan <device num>\n"
 230         "mmc list - lists available devices");
 231 #endif