common/cmd_pata.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  * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
   8  *              Terry Lv <r65388@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 <ata.h>
  30 #include <pata.h>
  31
  32 int pata_curr_device = -1;
  33 block_dev_desc_t pata_dev_desc[CONFIG_SYS_ATA_MAX_DEVICE];
  34
  35 int pata_initialize(void)
  36 {
  37         int rc;
  38         int i;
  39
  40         for (i = 0; i < CONFIG_SYS_ATA_MAX_DEVICE; i++) {
  41                 memset(&pata_dev_desc[i], 0, sizeof(struct block_dev_desc));
  42                 pata_dev_desc[i].if_type = IF_TYPE_ATAPI;
  43                 pata_dev_desc[i].dev = i;
  44                 pata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  45                 pata_dev_desc[i].type = DEV_TYPE_HARDDISK;
  46                 pata_dev_desc[i].lba = 0;
  47                 pata_dev_desc[i].blksz = 512;
  48                 pata_dev_desc[i].block_read = pata_read;
  49                 pata_dev_desc[i].block_write = pata_write;
  50
  51                 rc = init_pata(i);
  52                 rc = scan_pata(i);
  53                 if ((pata_dev_desc[i].lba > 0) && (pata_dev_desc[i].blksz > 0))
  54                         init_part(&pata_dev_desc[i]);
  55         }
  56         pata_curr_device = 0;
  57         return rc;
  58 }
  59
  60 block_dev_desc_t *pata_get_dev(int dev)
  61 {
  62         return (dev < CONFIG_SYS_ATA_MAX_DEVICE) ? &pata_dev_desc[dev] : NULL;
  63 }
  64
  65 int do_pata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  66 {
  67         int rc = 0;
  68
  69         if (argc == 2 && strcmp(argv[1], "init") == 0)
  70                 return pata_initialize();
  71
  72         /* If the user has not yet run `pata init`, do it now */
  73         if (pata_curr_device == -1)
  74                 if (pata_initialize())
  75                         return 1;
  76
  77         switch (argc) {
  78         case 0:
  79         case 1:
  80                 printf("Usage:\n%s\n", cmdtp->usage);
  81                 return 1;
  82         case 2:
  83                 if (strncmp(argv[1], "inf", 3) == 0) {
  84                         int i;
  85                         putc('\n');
  86                         for (i = 0; i < CONFIG_SYS_ATA_MAX_DEVICE; ++i) {
  87                                 if (pata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
  88                                         continue;
  89                                 printf("PATA device %d: ", i);
  90                                 dev_print(&pata_dev_desc[i]);
  91                         }
  92                         return 0;
  93                 } else if (strncmp(argv[1], "dev", 3) == 0) {
  94                         if ((pata_curr_device < 0) || \
  95                                         (pata_curr_device >= CONFIG_SYS_ATA_MAX_DEVICE)) {
  96                                 puts("\nno PATA devices available\n");
  97                                 return 1;
  98                         }
  99                         printf("\nPATA device %d: ", pata_curr_device);
 100                         dev_print(&pata_dev_desc[pata_curr_device]);
 101                         return 0;
 102                 } else if (strncmp(argv[1], "part", 4) == 0) {
 103                         int dev, ok;
 104
 105                         for (ok = 0, dev = 0; dev < CONFIG_SYS_ATA_MAX_DEVICE; ++dev) {
 106                                 if (pata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 107                                         ++ok;
 108                                         if (dev)
 109                                                 putc('\n');
 110                                         print_part(&pata_dev_desc[dev]);
 111                                 }
 112                         }
 113                         if (!ok) {
 114                                 puts("\nno PATA devices available\n");
 115                                 rc++;
 116                         }
 117                         return rc;
 118                 }
 119                 printf("Usage:\n%s\n", cmdtp->usage);
 120                 return 1;
 121         case 3:
 122                 if (strncmp(argv[1], "dev", 3) == 0) {
 123                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 124
 125                         printf("\nPATA device %d: ", dev);
 126                         if (dev >= CONFIG_SYS_ATA_MAX_DEVICE) {
 127                                 puts("unknown device\n");
 128                                 return 1;
 129                         }
 130                         dev_print(&pata_dev_desc[dev]);
 131
 132                         if (pata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
 133                                 return 1;
 134
 135                         pata_curr_device = dev;
 136
 137                         puts("... is now current device\n");
 138
 139                         return 0;
 140                 } else if (strncmp(argv[1], "part", 4) == 0) {
 141                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 142
 143                         if (pata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 144                                 print_part(&pata_dev_desc[dev]);
 145                         } else {
 146                                 printf("\nPATA device %d not available\n", dev);
 147                                 rc = 1;
 148                         }
 149                         return rc;
 150                 }
 151                 printf ("Usage:\n%s\n", cmdtp->usage);
 152                 return 1;
 153
 154         default: /* at least 4 args */
 155                 if (strcmp(argv[1], "read") == 0) {
 156                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 157                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 158                         ulong n;
 159                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 160
 161                         printf("\nPATA read: device %d block # %ld, count %ld ... ",
 162                                 pata_curr_device, blk, cnt);
 163
 164                         n = pata_read(pata_curr_device, blk, cnt, (u32 *)addr);
 165
 166                         /* flush cache after read */
 167                         flush_cache(addr, cnt * pata_dev_desc[pata_curr_device].blksz);
 168
 169                         printf("%ld blocks read: %s\n",
 170                                 n, (n == cnt) ? "OK" : "ERROR");
 171                         return (n == cnt) ? 0 : 1;
 172                 } else if (strcmp(argv[1], "write") == 0) {
 173                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 174                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 175                         ulong n;
 176
 177                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 178
 179                         printf("\nPATA write: device %d block # %ld, count %ld ... ",
 180                                 pata_curr_device, blk, cnt);
 181
 182                         n = pata_write(pata_curr_device, blk, cnt, (u32 *)addr);
 183
 184                         printf("%ld blocks written: %s\n",
 185                                 n, (n == cnt) ? "OK" : "ERROR");
 186                         return (n == cnt) ? 0 : 1;
 187                 } else {
 188                         printf("Usage:\n%s\n", cmdtp->usage);
 189                         rc = 1;
 190                 }
 191
 192                 return rc;
 193         }
 194 }
 195
 196 U_BOOT_CMD(
 197         pata, 5, 1, do_pata,
 198         "pata   - PATA sub system\n",
 199         "pata info - show available PATA devices\n"
 200         "pata device [dev] - show or set current device\n"
 201         "pata part [dev] - print partition table\n"
 202         "pata read addr blk# cnt\n"
 203         "pata write addr blk# cnt\n");