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 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->ext_csd_rev);
 110
 111         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
 112
 113         if (mmc->high_capacity)
 114                 printf("Capacity: %lld MByte\n", mmc->capacity >> 11);
 115         else
 116                 printf("Capacity: %lld\n", mmc->capacity);
 117
 118         printf("Bus Width: %d-bit\n", mmc->bus_width);
 119 }
 120
 121 int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 122 {
 123         struct mmc *mmc;
 124         int dev_num;
 125
 126         if (argc < 2)
 127                 dev_num = 0;
 128         else
 129                 dev_num = simple_strtoul(argv[1], NULL, 0);
 130
 131         mmc = find_mmc_device(dev_num);
 132
 133         if (mmc) {
 134                 mmc_init(mmc);
 135
 136                 print_mmcinfo(mmc);
 137         }
 138
 139         return 0;
 140 }
 141
 142 U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
 143         "mmcinfo <dev num>-- display MMC info\n",
 144         ""
 145 );
 146
 147 int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 148 {
 149         int rc = 0;
 150
 151         switch (argc) {
 152         case 3:
 153                 if (strcmp(argv[1], "rescan") == 0) {
 154                         int dev = simple_strtoul(argv[2], NULL, 10);
 155                         struct mmc *mmc = find_mmc_device(dev);
 156
 157                         if (!mmc)
 158                                 return 1;
 159
 160                         mmc_init(mmc);
 161
 162                         return 0;
 163                 }
 164
 165         case 0:
 166         case 1:
 167         case 4:
 168                 printf("Usage:\n%s\n", cmdtp->usage);
 169                 return 1;
 170
 171         case 2:
 172                 if (!strcmp(argv[1], "list")) {
 173                         print_mmc_devices('\n');
 174                         return 0;
 175                 }
 176                 return 1;
 177         default: /* at least 5 args */
 178                 if (strcmp(argv[1], "read") == 0) {
 179                         int dev = simple_strtoul(argv[2], NULL, 10);
 180                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 181                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 182                         u32 n;
 183                         u32 blk = simple_strtoul(argv[4], NULL, 16);
 184                         struct mmc *mmc = find_mmc_device(dev);
 185
 186                         if (!mmc)
 187                                 return 1;
 188
 189                         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 190                                 dev, blk, cnt);
 191
 192                         mmc_init(mmc);
 193
 194                         n = mmc->block_dev.block_read(dev, blk, cnt, addr);
 195
 196                         /* flush cache after read */
 197                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 198
 199                         printf("%d blocks read: %s\n",
 200                                 n, (n==cnt) ? "OK" : "ERROR");
 201                         return (n == cnt) ? 0 : 1;
 202                 } else if (strcmp(argv[1], "write") == 0) {
 203                         int dev = simple_strtoul(argv[2], NULL, 10);
 204                         void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
 205                         u32 cnt = simple_strtoul(argv[5], NULL, 16);
 206                         u32 n;
 207                         struct mmc *mmc = find_mmc_device(dev);
 208
 209                         int blk = simple_strtoul(argv[4], NULL, 16);
 210
 211                         if (!mmc)
 212                                 return 1;
 213
 214                         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 215                                 dev, blk, cnt);
 216
 217                         mmc_init(mmc);
 218
 219                         n = mmc->block_dev.block_write(dev, blk, cnt, addr);
 220
 221                         printf("%d blocks written: %s\n",
 222                                 n, (n == cnt) ? "OK" : "ERROR");
 223                         return (n == cnt) ? 0 : 1;
 224                 } else {
 225                         printf("Usage:\n%s\n", cmdtp->usage);
 226                         rc = 1;
 227                 }
 228
 229                 return rc;
 230         }
 231 }
 232
 233 U_BOOT_CMD(
 234         mmc, 6, 1, do_mmcops,
 235         "MMC sub system",
 236         "read <device num> addr blk# cnt\n"
 237         "mmc write <device num> addr blk# cnt\n"
 238         "mmc rescan <device num>\n"
 239         "mmc list - lists available devices");
 240 #endif