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 int 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                 rc = scan_sata(i);
  52                 if ((sata_dev_desc[i].lba > 0) && (sata_dev_desc[i].blksz > 0))
  53                         init_part(&sata_dev_desc[i]);
  54         }
  55         curr_device = 0;
  56         return rc;
  57 }
  58
  59 block_dev_desc_t *sata_get_dev(int dev)
  60 {
  61         return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
  62 }
  63
  64 int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  65 {
  66         int rc = 0;
  67
  68         switch (argc) {
  69         case 0:
  70         case 1:
  71                 printf("Usage:\n%s\n", cmdtp->usage);
  72                 return 1;
  73         case 2:
  74                 if (strncmp(argv[1],"inf", 3) == 0) {
  75                         int i;
  76                         putc('\n');
  77                         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; ++i) {
  78                                 if (sata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
  79                                         continue;
  80                                 printf ("SATA device %d: ", i);
  81                                 dev_print(&sata_dev_desc[i]);
  82                         }
  83                         return 0;
  84                 } else if (strncmp(argv[1],"dev", 3) == 0) {
  85                         if ((curr_device < 0) || (curr_device >= CONFIG_SYS_SATA_MAX_DEVICE)) {
  86                                 puts("\nno SATA devices available\n");
  87                                 return 1;
  88                         }
  89                         printf("\nSATA device %d: ", curr_device);
  90                         dev_print(&sata_dev_desc[curr_device]);
  91                         return 0;
  92                 } else if (strncmp(argv[1],"part",4) == 0) {
  93                         int dev, ok;
  94
  95                         for (ok = 0, dev = 0; dev < CONFIG_SYS_SATA_MAX_DEVICE; ++dev) {
  96                                 if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
  97                                         ++ok;
  98                                         if (dev)
  99                                                 putc ('\n');
 100                                         print_part(&sata_dev_desc[dev]);
 101                                 }
 102                         }
 103                         if (!ok) {
 104                                 puts("\nno SATA devices available\n");
 105                                 rc ++;
 106                         }
 107                         return rc;
 108                 }
 109                 printf("Usage:\n%s\n", cmdtp->usage);
 110                 return 1;
 111         case 3:
 112                 if (strncmp(argv[1], "dev", 3) == 0) {
 113                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 114
 115                         printf("\nSATA device %d: ", dev);
 116                         if (dev >= CONFIG_SYS_SATA_MAX_DEVICE) {
 117                                 puts ("unknown device\n");
 118                                 return 1;
 119                         }
 120                         dev_print(&sata_dev_desc[dev]);
 121
 122                         if (sata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
 123                                 return 1;
 124
 125                         curr_device = dev;
 126
 127                         puts("... is now current device\n");
 128
 129                         return 0;
 130                 } else if (strncmp(argv[1], "part", 4) == 0) {
 131                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 132
 133                         if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 134                                 print_part(&sata_dev_desc[dev]);
 135                         } else {
 136                                 printf("\nSATA device %d not available\n", dev);
 137                                 rc = 1;
 138                         }
 139                         return rc;
 140                 }
 141                 printf ("Usage:\n%s\n", cmdtp->usage);
 142                 return 1;
 143
 144         default: /* at least 4 args */
 145                 if (strcmp(argv[1], "read") == 0) {
 146                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 147                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 148                         ulong n;
 149                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 150
 151                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
 152                                 curr_device, blk, cnt);
 153
 154                         n = sata_read(curr_device, blk, cnt, (u32 *)addr);
 155
 156                         /* flush cache after read */
 157                         flush_cache(addr, cnt * sata_dev_desc[curr_device].blksz);
 158
 159                         printf("%ld blocks read: %s\n",
 160                                 n, (n==cnt) ? "OK" : "ERROR");
 161                         return (n == cnt) ? 0 : 1;
 162                 } else if (strcmp(argv[1], "write") == 0) {
 163                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 164                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 165                         ulong n;
 166
 167                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 168
 169                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 170                                 curr_device, blk, cnt);
 171
 172                         n = sata_write(curr_device, blk, cnt, (u32 *)addr);
 173
 174                         printf("%ld blocks written: %s\n",
 175                                 n, (n == cnt) ? "OK" : "ERROR");
 176                         return (n == cnt) ? 0 : 1;
 177                 } else {
 178                         printf("Usage:\n%s\n", cmdtp->usage);
 179                         rc = 1;
 180                 }
 181
 182                 return rc;
 183         }
 184 }
 185
 186 U_BOOT_CMD(
 187         sata, 5, 1, do_sata,
 188         "sata   - SATA sub system\n",
 189         "sata info - show available SATA devices\n"
 190         "sata device [dev] - show or set current device\n"
 191         "sata part [dev] - print partition table\n"
 192         "sata read addr blk# cnt\n"
 193         "sata write addr blk# cnt\n");