LXR uboot/drivers/block/libata.c

   1/*
   2 * Copyright (C) 2008 Freescale Semiconductor, Inc.
   3 *              Dave Liu <daveliu@freescale.com>
   4 *              port from the libata of linux kernel
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <libata.h>
  10
  11u64 ata_id_n_sectors(u16 *id)
  12{
  13        if (ata_id_has_lba(id)) {
  14                if (ata_id_has_lba48(id))
  15                        return ata_id_u64(id, ATA_ID_LBA48_SECTORS);
  16                else
  17                        return ata_id_u32(id, ATA_ID_LBA_SECTORS);
  18        } else {
  19                return 0;
  20        }
  21}
  22
  23u32 ata_dev_classify(u32 sig)
  24{
  25        u8 lbam, lbah;
  26
  27        lbam = (sig >> 16) & 0xff;
  28        lbah = (sig >> 24) & 0xff;
  29
  30        if (((lbam == 0) && (lbah == 0)) ||
  31                ((lbam == 0x3c) && (lbah == 0xc3)))
  32                return ATA_DEV_ATA;
  33
  34        if ((lbam == 0x14) && (lbah == 0xeb))
  35                return ATA_DEV_ATAPI;
  36
  37        if ((lbam == 0x69) && (lbah == 0x96))
  38                return ATA_DEV_PMP;
  39
  40        return ATA_DEV_UNKNOWN;
  41}
  42
  43static void ata_id_string(const u16 *id, unsigned char *s,
  44                         unsigned int ofs, unsigned int len)
  45{
  46        unsigned int c;
  47
  48        while (len > 0) {
  49                c = id[ofs] >> 8;
  50                *s = c;
  51                s++;
  52
  53                c = id[ofs] & 0xff;
  54                *s = c;
  55                s++;
  56
  57                ofs++;
  58                len -= 2;
  59        }
  60}
  61
  62void ata_id_c_string(const u16 *id, unsigned char *s,
  63                         unsigned int ofs, unsigned int len)
  64{
  65        unsigned char *p;
  66
  67        ata_id_string(id, s, ofs, len - 1);
  68
  69        p = s + strnlen((char *)s, len - 1);
  70        while (p > s && p[-1] == ' ')
  71                p--;
  72        *p = '\0';
  73}
  74
  75void ata_dump_id(u16 *id)
  76{
  77        unsigned char serial[ATA_ID_SERNO_LEN + 1];
  78        unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
  79        unsigned char product[ATA_ID_PROD_LEN + 1];
  80        u64 n_sectors;
  81
  82        /* Serial number */
  83        ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
  84        printf("S/N: %s\n\r", serial);
  85
  86        /* Firmware version */
  87        ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
  88        printf("Firmware version: %s\n\r", firmware);
  89
  90        /* Product model */
  91        ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
  92        printf("Product model number: %s\n\r", product);
  93
  94        /* Total sectors of device  */
  95        n_sectors = ata_id_n_sectors(id);
  96        printf("Capablity: %lld sectors\n\r", n_sectors);
  97
  98        printf ("id[49]: capabilities = 0x%04x\n"
  99                "id[53]: field valid = 0x%04x\n"
 100                "id[63]: mwdma = 0x%04x\n"
 101                "id[64]: pio = 0x%04x\n"
 102                "id[75]: queue depth = 0x%04x\n",
 103                id[49],
 104                id[53],
 105                id[63],
 106                id[64],
 107                id[75]);
 108
 109        printf ("id[76]: sata capablity = 0x%04x\n"
 110                "id[78]: sata features supported = 0x%04x\n"
 111                "id[79]: sata features enable = 0x%04x\n",
 112                id[76],
 113                id[78],
 114                id[79]);
 115
 116        printf ("id[80]: major version = 0x%04x\n"
 117                "id[81]: minor version = 0x%04x\n"
 118                "id[82]: command set supported 1 = 0x%04x\n"
 119                "id[83]: command set supported 2 = 0x%04x\n"
 120                "id[84]: command set extension = 0x%04x\n",
 121                id[80],
 122                id[81],
 123                id[82],
 124                id[83],
 125                id[84]);
 126        printf ("id[85]: command set enable 1 = 0x%04x\n"
 127                "id[86]: command set enable 2 = 0x%04x\n"
 128                "id[87]: command set default = 0x%04x\n"
 129                "id[88]: udma = 0x%04x\n"
 130                "id[93]: hardware reset result = 0x%04x\n",
 131                id[85],
 132                id[86],
 133                id[87],
 134                id[88],
 135                id[93]);
 136}
 137
 138void ata_swap_buf_le16(u16 *buf, unsigned int buf_words)
 139{
 140        unsigned int i;
 141
 142        for (i = 0; i < buf_words; i++)
 143                buf[i] = le16_to_cpu(buf[i]);
 144}
 145