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() < 0) ?
  32                         CMD_RET_FAILURE : CMD_RET_SUCCESS;
  33         }
  34
  35         /* If the user has not yet run `sata init`, do it now */
  36         if (sata_curr_device == -1) {
  37                 rc = sata_initialize();
  38                 if (rc == -1)
  39                         return CMD_RET_FAILURE;
  40                 sata_curr_device = rc;
  41         }
  42
  43         switch (argc) {
  44         case 0:
  45         case 1:
  46                 return CMD_RET_USAGE;
  47         case 2:
  48                 if (strncmp(argv[1], "inf", 3) == 0) {
  49                         blk_list_devices(IF_TYPE_SATA);
  50                         return 0;
  51                 } else if (strncmp(argv[1], "dev", 3) == 0) {
  52                         if (blk_print_device_num(IF_TYPE_SATA,
  53                                                  sata_curr_device)) {
  54                                 printf("\nno SATA devices available\n");
  55                                 return CMD_RET_FAILURE;
  56                         }
  57                         return 0;
  58                 } else if (strncmp(argv[1], "part", 4) == 0) {
  59                         if (blk_list_part(IF_TYPE_SATA))
  60                                 puts("\nno SATA devices available\n");
  61                         return 0;
  62                 }
  63                 return CMD_RET_USAGE;
  64         case 3:
  65                 if (strncmp(argv[1], "dev", 3) == 0) {
  66                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  67
  68                         if (!blk_show_device(IF_TYPE_SATA, dev)) {
  69                                 sata_curr_device = dev;
  70                                 printf("... is now current device\n");
  71                         } else {
  72                                 return CMD_RET_FAILURE;
  73                         }
  74                         return 0;
  75                 } else if (strncmp(argv[1], "part", 4) == 0) {
  76                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
  77
  78                         if (blk_print_part_devnum(IF_TYPE_SATA, dev)) {
  79                                 printf("\nSATA device %d not available\n",
  80                                        dev);
  81                                 return CMD_RET_FAILURE;
  82                         }
  83                         return rc;
  84                 }
  85                 return CMD_RET_USAGE;
  86
  87         default: /* at least 4 args */
  88                 if (strcmp(argv[1], "read") == 0) {
  89                         ulong addr = simple_strtoul(argv[2], NULL, 16);
  90                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
  91                         ulong n;
  92                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
  93
  94                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
  95                                 sata_curr_device, blk, cnt);
  96
  97                         n = blk_read_devnum(IF_TYPE_SATA, sata_curr_device, blk,
  98                                             cnt, (ulong *)addr);
  99
 100                         printf("%ld blocks read: %s\n",
 101                                 n, (n==cnt) ? "OK" : "ERROR");
 102                         return (n == cnt) ? 0 : 1;
 103                 } else if (strcmp(argv[1], "write") == 0) {
 104                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 105                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 106                         ulong n;
 107
 108                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 109
 110                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 111                                 sata_curr_device, blk, cnt);
 112
 113                         n = blk_write_devnum(IF_TYPE_SATA, sata_curr_device,
 114                                              blk, cnt, (ulong *)addr);
 115
 116                         printf("%ld blocks written: %s\n",
 117                                 n, (n == cnt) ? "OK" : "ERROR");
 118                         return (n == cnt) ? 0 : 1;
 119                 } else {
 120                         return CMD_RET_USAGE;
 121                 }
 122
 123                 return rc;
 124         }
 125 }
 126
 127 U_BOOT_CMD(
 128         sata, 5, 1, do_sata,
 129         "SATA sub system",
 130         "init - init SATA sub system\n"
 131         "sata stop - disable SATA sub system\n"
 132         "sata info - show available SATA devices\n"
 133         "sata device [dev] - show or set current device\n"
 134         "sata part [dev] - print partition table\n"
 135         "sata read addr blk# cnt\n"
 136         "sata write addr blk# cnt"
 137 );