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  * 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 block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
  20
  21 int __sata_initialize(void)
  22 {
  23         int rc;
  24         int i;
  25
  26         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
  27                 memset(&sata_dev_desc[i], 0, sizeof(struct block_dev_desc));
  28                 sata_dev_desc[i].if_type = IF_TYPE_SATA;
  29                 sata_dev_desc[i].dev = i;
  30                 sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  31                 sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
  32                 sata_dev_desc[i].lba = 0;
  33                 sata_dev_desc[i].blksz = 512;
  34                 sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz);
  35                 sata_dev_desc[i].block_read = sata_read;
  36                 sata_dev_desc[i].block_write = sata_write;
  37
  38                 rc = init_sata(i);
  39                 if (!rc) {
  40                         rc = scan_sata(i);
  41                         if (!rc && (sata_dev_desc[i].lba > 0) &&
  42                                 (sata_dev_desc[i].blksz > 0))
  43                                 init_part(&sata_dev_desc[i]);
  44                 }
  45         }
  46         sata_curr_device = 0;
  47         return rc;
  48 }
  49 int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
  50
  51 #ifdef CONFIG_PARTITIONS
  52 block_dev_desc_t *sata_get_dev(int dev)
  53 {
  54         return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
  55 }
  56 #endif
  57
  58 static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  59 {
  60         int rc = 0;
  61
  62         if (argc == 2 && strcmp(argv[1], "init") == 0)
  63                 return sata_initialize();
  64
  65         /* If the user has not yet run `sata init`, do it now */
  66         if (sata_curr_device == -1)
  67                 if (sata_initialize())
  68                         return 1;
  69
  70         switch (argc) {
  71         case 0:
  72         case 1:
  73                 return CMD_RET_USAGE;
  74         case 2:
  75                 if (strncmp(argv[1],"inf", 3) == 0) {
  76                         int i;
  77                         putc('\n');
  78                         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; ++i) {
  79                                 if (sata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
  80                                         continue;
  81                                 printf ("SATA device %d: ", i);
  82                                 dev_print(&sata_dev_desc[i]);
  83                         }
  84                         return 0;
  85                 } else if (strncmp(argv[1],"dev", 3) == 0) {
  86                         if ((sata_curr_device < 0) || (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE)) {
  87                                 puts("\nno SATA devices available\n");
  88                                 return 1;
  89                         }
  90                         printf("\nSATA device %d: ", sata_curr_device);
  91                         dev_print(&sata_dev_desc[sata_curr_device]);
  92                         return 0;
  93                 } else if (strncmp(argv[1],"part",4) == 0) {
  94                         int dev, ok;
  95
  96                         for (ok = 0, dev = 0; dev < CONFIG_SYS_SATA_MAX_DEVICE; ++dev) {
  97                                 if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
  98                                         ++ok;
  99                                         if (dev)
 100                                                 putc ('\n');
 101                                         print_part(&sata_dev_desc[dev]);
 102                                 }
 103                         }
 104                         if (!ok) {
 105                                 puts("\nno SATA devices available\n");
 106                                 rc ++;
 107                         }
 108                         return rc;
 109                 }
 110                 return CMD_RET_USAGE;
 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                         sata_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                 return CMD_RET_USAGE;
 142
 143         default: /* at least 4 args */
 144                 if (strcmp(argv[1], "read") == 0) {
 145                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 146                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 147                         ulong n;
 148                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 149
 150                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
 151                                 sata_curr_device, blk, cnt);
 152
 153                         n = sata_read(sata_curr_device, blk, cnt, (u32 *)addr);
 154
 155                         /* flush cache after read */
 156                         flush_cache(addr, cnt * sata_dev_desc[sata_curr_device].blksz);
 157
 158                         printf("%ld blocks read: %s\n",
 159                                 n, (n==cnt) ? "OK" : "ERROR");
 160                         return (n == cnt) ? 0 : 1;
 161                 } else if (strcmp(argv[1], "write") == 0) {
 162                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 163                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 164                         ulong n;
 165
 166                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 167
 168                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 169                                 sata_curr_device, blk, cnt);
 170
 171                         n = sata_write(sata_curr_device, blk, cnt, (u32 *)addr);
 172
 173                         printf("%ld blocks written: %s\n",
 174                                 n, (n == cnt) ? "OK" : "ERROR");
 175                         return (n == cnt) ? 0 : 1;
 176                 } else {
 177                         return CMD_RET_USAGE;
 178                 }
 179
 180                 return rc;
 181         }
 182 }
 183
 184 U_BOOT_CMD(
 185         sata, 5, 1, do_sata,
 186         "SATA sub system",
 187         "init - init SATA sub system\n"
 188         "sata info - show available SATA devices\n"
 189         "sata device [dev] - show or set current device\n"
 190         "sata part [dev] - print partition table\n"
 191         "sata read addr blk# cnt\n"
 192         "sata write addr blk# cnt"
 193 );