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  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <common.h>
  14 #include <command.h>
  15 #include <part.h>
  16 #include <sata.h>
  17
  18 static int sata_curr_device = -1;
  19
  20 static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  21 {
  22         int rc = 0;
  23
  24         if (argc == 2 && strcmp(argv[1], "stop") == 0)
  25                 return sata_stop();
  26
  27         if (argc == 2 && strcmp(argv[1], "init") == 0) {
  28                 if (sata_curr_device != -1)
  29                         sata_stop();
  30
  31                 return sata_initialize();
  32         }
  33
  34         /* If the user has not yet run `sata init`, do it now */
  35         if (sata_curr_device == -1)
  36                 if (sata_initialize())
  37                         return 1;
  38
  39         switch (argc) {
  40         case 0:
  41         case 1:
  42                 return CMD_RET_USAGE;
  43         case 2:
  44                 if (strncmp(argv[1], "inf", 3) == 0) {
  45                         blk_list_devices(IF_TYPE_SATA);
  46                         return 0;
  47                 } else if (strncmp(argv[1], "dev", 3) == 0) {
  48                         if (blk_print_device_num(IF_TYPE_SATA,
  49                                                  sata_curr_device)) {
  50                                 printf("\nno SATA devices available\n");
  51                                 return CMD_RET_FAILURE;
  52                         }
  53                         return 0;
  54                 } else if (strncmp(argv[1], "part", 4) == 0) {
  55                         if (blk_list_part(IF_TYPE_SATA))
  56                                 puts("\nno SATA devices available\n");
  57                         return 0;
  58                 }
  59                 return CMD_RET_USAGE;
  60         case 3:
  61                 if (strncmp(argv[1], "dev", 3) == 0) {
  62                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  63
  64                         if (!blk_show_device(IF_TYPE_SATA, dev)) {
  65                                 sata_curr_device = dev;
  66                                 printf("... is now current device\n");
  67                         } else {
  68                                 return CMD_RET_FAILURE;
  69                         }
  70                         return 0;
  71                 } else if (strncmp(argv[1], "part", 4) == 0) {
  72                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  73
  74                         if (blk_print_part_devnum(IF_TYPE_SATA, dev)) {
  75                                 printf("\nSATA device %d not available\n",
  76                                        dev);
  77                                 return CMD_RET_FAILURE;
  78                         }
  79                         return rc;
  80                 }
  81                 return CMD_RET_USAGE;
  82
  83         default: /* at least 4 args */
  84                 if (strcmp(argv[1], "read") == 0) {
  85                         ulong addr = simple_strtoul(argv[2], NULL, 16);
  86                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
  87                         ulong n;
  88                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
  89
  90                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
  91                                 sata_curr_device, blk, cnt);
  92
  93                         n = blk_read_devnum(IF_TYPE_SATA, sata_curr_device, blk,
  94                                             cnt, (ulong *)addr);
  95
  96                         printf("%ld blocks read: %s\n",
  97                                 n, (n==cnt) ? "OK" : "ERROR");
  98                         return (n == cnt) ? 0 : 1;
  99                 } else if (strcmp(argv[1], "write") == 0) {
 100                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 101                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 102                         ulong n;
 103
 104                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 105
 106                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 107                                 sata_curr_device, blk, cnt);
 108
 109                         n = blk_write_devnum(IF_TYPE_SATA, sata_curr_device,
 110                                              blk, cnt, (ulong *)addr);
 111
 112                         printf("%ld blocks written: %s\n",
 113                                 n, (n == cnt) ? "OK" : "ERROR");
 114                         return (n == cnt) ? 0 : 1;
 115                 } else {
 116                         return CMD_RET_USAGE;
 117                 }
 118
 119                 return rc;
 120         }
 121 }
 122
 123 U_BOOT_CMD(
 124         sata, 5, 1, do_sata,
 125         "SATA sub system",
 126         "init - init SATA sub system\n"
 127         "sata stop - disable SATA sub system\n"
 128         "sata info - show available SATA devices\n"
 129         "sata device [dev] - show or set current device\n"
 130         "sata part [dev] - print partition table\n"
 131         "sata read addr blk# cnt\n"
 132         "sata write addr blk# cnt"
 133 );