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                 rc = sata_initialize();
  37                 if (rc == -1)
  38                         return rc;
  39                 sata_curr_device = rc;
  40         }
  41
  42         switch (argc) {
  43         case 0:
  44         case 1:
  45                 return CMD_RET_USAGE;
  46         case 2:
  47                 if (strncmp(argv[1], "inf", 3) == 0) {
  48                         blk_list_devices(IF_TYPE_SATA);
  49                         return 0;
  50                 } else if (strncmp(argv[1], "dev", 3) == 0) {
  51                         if (blk_print_device_num(IF_TYPE_SATA,
  52                                                  sata_curr_device)) {
  53                                 printf("\nno SATA devices available\n");
  54                                 return CMD_RET_FAILURE;
  55                         }
  56                         return 0;
  57                 } else if (strncmp(argv[1], "part", 4) == 0) {
  58                         if (blk_list_part(IF_TYPE_SATA))
  59                                 puts("\nno SATA devices available\n");
  60                         return 0;
  61                 }
  62                 return CMD_RET_USAGE;
  63         case 3:
  64                 if (strncmp(argv[1], "dev", 3) == 0) {
  65                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  66
  67                         if (!blk_show_device(IF_TYPE_SATA, dev)) {
  68                                 sata_curr_device = dev;
  69                                 printf("... is now current device\n");
  70                         } else {
  71                                 return CMD_RET_FAILURE;
  72                         }
  73                         return 0;
  74                 } else if (strncmp(argv[1], "part", 4) == 0) {
  75                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  76
  77                         if (blk_print_part_devnum(IF_TYPE_SATA, dev)) {
  78                                 printf("\nSATA device %d not available\n",
  79                                        dev);
  80                                 return CMD_RET_FAILURE;
  81                         }
  82                         return rc;
  83                 }
  84                 return CMD_RET_USAGE;
  85
  86         default: /* at least 4 args */
  87                 if (strcmp(argv[1], "read") == 0) {
  88                         ulong addr = simple_strtoul(argv[2], NULL, 16);
  89                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
  90                         ulong n;
  91                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
  92
  93                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
  94                                 sata_curr_device, blk, cnt);
  95
  96                         n = blk_read_devnum(IF_TYPE_SATA, sata_curr_device, blk,
  97                                             cnt, (ulong *)addr);
  98
  99                         printf("%ld blocks read: %s\n",
 100                                 n, (n==cnt) ? "OK" : "ERROR");
 101                         return (n == cnt) ? 0 : 1;
 102                 } else if (strcmp(argv[1], "write") == 0) {
 103                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 104                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 105                         ulong n;
 106
 107                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 108
 109                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 110                                 sata_curr_device, blk, cnt);
 111
 112                         n = blk_write_devnum(IF_TYPE_SATA, sata_curr_device,
 113                                              blk, cnt, (ulong *)addr);
 114
 115                         printf("%ld blocks written: %s\n",
 116                                 n, (n == cnt) ? "OK" : "ERROR");
 117                         return (n == cnt) ? 0 : 1;
 118                 } else {
 119                         return CMD_RET_USAGE;
 120                 }
 121
 122                 return rc;
 123         }
 124 }
 125
 126 U_BOOT_CMD(
 127         sata, 5, 1, do_sata,
 128         "SATA sub system",
 129         "init - init SATA sub system\n"
 130         "sata stop - disable SATA sub system\n"
 131         "sata info - show available SATA devices\n"
 132         "sata device [dev] - show or set current device\n"
 133         "sata part [dev] - print partition table\n"
 134         "sata read addr blk# cnt\n"
 135         "sata write addr blk# cnt"
 136 );