common/cmd_sata.c

   1 /*
   2  * Copyright (C) 2000-2005, DENX Software Engineering
   3  *              Wolfgang Denk <wd@denx.de>
   4  * Copyright (C) Procsys. All rights reserved.
   5  *              Mushtaq Khan <mushtaq_k@procsys.com>
   6  *                      <mushtaqk_921@yahoo.co.in>
   7  * Copyright (C) 2008 Freescale Semiconductor, Inc.
   8  *              Dave Liu <daveliu@freescale.com>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <command.h>
  28 #include <part.h>
  29 #include <sata.h>
  30
  31 static int sata_curr_device = -1;
  32 block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
  33
  34 int __sata_initialize(void)
  35 {
  36         int rc;
  37         int i;
  38
  39         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
  40                 memset(&sata_dev_desc[i], 0, sizeof(struct block_dev_desc));
  41                 sata_dev_desc[i].if_type = IF_TYPE_SATA;
  42                 sata_dev_desc[i].dev = i;
  43                 sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  44                 sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
  45                 sata_dev_desc[i].lba = 0;
  46                 sata_dev_desc[i].blksz = 512;
  47                 sata_dev_desc[i].block_read = sata_read;
  48                 sata_dev_desc[i].block_write = sata_write;
  49
  50                 rc = init_sata(i);
  51                 if (!rc) {
  52                         rc = scan_sata(i);
  53                         if (!rc && (sata_dev_desc[i].lba > 0) &&
  54                                 (sata_dev_desc[i].blksz > 0))
  55                                 init_part(&sata_dev_desc[i]);
  56                 }
  57         }
  58         sata_curr_device = 0;
  59         return rc;
  60 }
  61 int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
  62
  63 #ifdef CONFIG_PARTITIONS
  64 block_dev_desc_t *sata_get_dev(int dev)
  65 {
  66         return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
  67 }
  68 #endif
  69
  70 static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  71 {
  72         int rc = 0;
  73
  74         if (argc == 2 && strcmp(argv[1], "init") == 0)
  75                 return sata_initialize();
  76
  77         /* If the user has not yet run `sata init`, do it now */
  78         if (sata_curr_device == -1)
  79                 if (sata_initialize())
  80                         return 1;
  81
  82         switch (argc) {
  83         case 0:
  84         case 1:
  85                 return CMD_RET_USAGE;
  86         case 2:
  87                 if (strncmp(argv[1],"inf", 3) == 0) {
  88                         int i;
  89                         putc('\n');
  90                         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; ++i) {
  91                                 if (sata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
  92                                         continue;
  93                                 printf ("SATA device %d: ", i);
  94                                 dev_print(&sata_dev_desc[i]);
  95                         }
  96                         return 0;
  97                 } else if (strncmp(argv[1],"dev", 3) == 0) {
  98                         if ((sata_curr_device < 0) || (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE)) {
  99                                 puts("\nno SATA devices available\n");
 100                                 return 1;
 101                         }
 102                         printf("\nSATA device %d: ", sata_curr_device);
 103                         dev_print(&sata_dev_desc[sata_curr_device]);
 104                         return 0;
 105                 } else if (strncmp(argv[1],"part",4) == 0) {
 106                         int dev, ok;
 107
 108                         for (ok = 0, dev = 0; dev < CONFIG_SYS_SATA_MAX_DEVICE; ++dev) {
 109                                 if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 110                                         ++ok;
 111                                         if (dev)
 112                                                 putc ('\n');
 113                                         print_part(&sata_dev_desc[dev]);
 114                                 }
 115                         }
 116                         if (!ok) {
 117                                 puts("\nno SATA devices available\n");
 118                                 rc ++;
 119                         }
 120                         return rc;
 121                 }
 122                 return CMD_RET_USAGE;
 123         case 3:
 124                 if (strncmp(argv[1], "dev", 3) == 0) {
 125                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 126
 127                         printf("\nSATA device %d: ", dev);
 128                         if (dev >= CONFIG_SYS_SATA_MAX_DEVICE) {
 129                                 puts ("unknown device\n");
 130                                 return 1;
 131                         }
 132                         dev_print(&sata_dev_desc[dev]);
 133
 134                         if (sata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
 135                                 return 1;
 136
 137                         sata_curr_device = dev;
 138
 139                         puts("... is now current device\n");
 140
 141                         return 0;
 142                 } else if (strncmp(argv[1], "part", 4) == 0) {
 143                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 144
 145                         if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 146                                 print_part(&sata_dev_desc[dev]);
 147                         } else {
 148                                 printf("\nSATA device %d not available\n", dev);
 149                                 rc = 1;
 150                         }
 151                         return rc;
 152                 }
 153                 return CMD_RET_USAGE;
 154
 155         default: /* at least 4 args */
 156                 if (strcmp(argv[1], "read") == 0) {
 157                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 158                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 159                         ulong n;
 160                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 161
 162                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
 163                                 sata_curr_device, blk, cnt);
 164
 165                         n = sata_read(sata_curr_device, blk, cnt, (u32 *)addr);
 166
 167                         /* flush cache after read */
 168                         flush_cache(addr, cnt * sata_dev_desc[sata_curr_device].blksz);
 169
 170                         printf("%ld blocks read: %s\n",
 171                                 n, (n==cnt) ? "OK" : "ERROR");
 172                         return (n == cnt) ? 0 : 1;
 173                 } else if (strcmp(argv[1], "write") == 0) {
 174                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 175                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 176                         ulong n;
 177
 178                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 179
 180                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 181                                 sata_curr_device, blk, cnt);
 182
 183                         n = sata_write(sata_curr_device, blk, cnt, (u32 *)addr);
 184
 185                         printf("%ld blocks written: %s\n",
 186                                 n, (n == cnt) ? "OK" : "ERROR");
 187                         return (n == cnt) ? 0 : 1;
 188                 } else {
 189                         return CMD_RET_USAGE;
 190                 }
 191
 192                 return rc;
 193         }
 194 }
 195
 196 U_BOOT_CMD(
 197         sata, 5, 1, do_sata,
 198         "SATA sub system",
 199         "init - init SATA sub system\n"
 200         "sata info - show available SATA devices\n"
 201         "sata device [dev] - show or set current device\n"
 202         "sata part [dev] - print partition table\n"
 203         "sata read addr blk# cnt\n"
 204         "sata write addr blk# cnt"
 205 );