LXR uboot/drivers/ata/libata.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2008 Freescale Semiconductor, Inc.
   4 *              Dave Liu <daveliu@freescale.com>
   5 *              port from the libata of linux kernel
   6 */
   7
   8#include <common.h>
   9#include <compiler.h>
  10#include <libata.h>
  11
  12u64 ata_id_n_sectors(u16 *id)
  13{
  14        if (ata_id_has_lba(id)) {
  15                if (ata_id_has_lba48(id))
  16                        return ata_id_u64(id, ATA_ID_LBA48_SECTORS);
  17                else
  18                        return ata_id_u32(id, ATA_ID_LBA_SECTORS);
  19        } else {
  20                return 0;
  21        }
  22}
  23
  24u32 ata_dev_classify(u32 sig)
  25{
  26        u8 lbam, lbah;
  27
  28        lbam = (sig >> 16) & 0xff;
  29        lbah = (sig >> 24) & 0xff;
  30
  31        if (((lbam == 0) && (lbah == 0)) ||
  32                ((lbam == 0x3c) && (lbah == 0xc3)))
  33                return ATA_DEV_ATA;
  34
  35        if ((lbam == 0x14) && (lbah == 0xeb))
  36                return ATA_DEV_ATAPI;
  37
  38        if ((lbam == 0x69) && (lbah == 0x96))
  39                return ATA_DEV_PMP;
  40
  41        return ATA_DEV_UNKNOWN;
  42}
  43
  44static void ata_id_string(const u16 *id, unsigned char *s,
  45                         unsigned int ofs, unsigned int len)
  46{
  47        unsigned int c;
  48
  49        while (len > 0) {
  50                c = id[ofs] >> 8;
  51                *s = c;
  52                s++;
  53
  54                c = id[ofs] & 0xff;
  55                *s = c;
  56                s++;
  57
  58                ofs++;
  59                len -= 2;
  60        }
  61}
  62
  63void ata_id_c_string(const u16 *id, unsigned char *s,
  64                         unsigned int ofs, unsigned int len)
  65{
  66        unsigned char *p;
  67
  68        ata_id_string(id, s, ofs, len - 1);
  69
  70        p = s + strnlen((char *)s, len - 1);
  71        while (p > s && p[-1] == ' ')
  72                p--;
  73        *p = '\0';
  74}
  75
  76void ata_dump_id(u16 *id)
  77{
  78        unsigned char serial[ATA_ID_SERNO_LEN + 1];
  79        unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
  80        unsigned char product[ATA_ID_PROD_LEN + 1];
  81        u64 n_sectors;
  82
  83        /* Serial number */
  84        ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
  85        printf("S/N: %s\n\r", serial);
  86
  87        /* Firmware version */
  88        ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
  89        printf("Firmware version: %s\n\r", firmware);
  90
  91        /* Product model */
  92        ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
  93        printf("Product model number: %s\n\r", product);
  94
  95        /* Total sectors of device  */
  96        n_sectors = ata_id_n_sectors(id);
  97        printf("Capablity: %lld sectors\n\r", n_sectors);
  98
  99        printf ("id[49]: capabilities = 0x%04x\n"
 100                "id[53]: field valid = 0x%04x\n"
 101                "id[63]: mwdma = 0x%04x\n"
 102                "id[64]: pio = 0x%04x\n"
 103                "id[75]: queue depth = 0x%04x\n",
 104                id[49],
 105                id[53],
 106                id[63],
 107                id[64],
 108                id[75]);
 109
 110        printf ("id[76]: sata capablity = 0x%04x\n"
 111                "id[78]: sata features supported = 0x%04x\n"
 112                "id[79]: sata features enable = 0x%04x\n",
 113                id[76],
 114                id[78],
 115                id[79]);
 116
 117        printf ("id[80]: major version = 0x%04x\n"
 118                "id[81]: minor version = 0x%04x\n"
 119                "id[82]: command set supported 1 = 0x%04x\n"
 120                "id[83]: command set supported 2 = 0x%04x\n"
 121                "id[84]: command set extension = 0x%04x\n",
 122                id[80],
 123                id[81],
 124                id[82],
 125                id[83],
 126                id[84]);
 127        printf ("id[85]: command set enable 1 = 0x%04x\n"
 128                "id[86]: command set enable 2 = 0x%04x\n"
 129                "id[87]: command set default = 0x%04x\n"
 130                "id[88]: udma = 0x%04x\n"
 131                "id[93]: hardware reset result = 0x%04x\n",
 132                id[85],
 133                id[86],
 134                id[87],
 135                id[88],
 136                id[93]);
 137}
 138
 139void ata_swap_buf_le16(u16 *buf, unsigned int buf_words)
 140{
 141        unsigned int i;
 142
 143        for (i = 0; i < buf_words; i++)
 144                buf[i] = le16_to_cpu(buf[i]);
 145}
 146