git.sur5r.net Git - u-boot/blob - common/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 <sata.h>
  15
  16 struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
  17
  18 #ifdef CONFIG_PARTITIONS
  19 struct blk_desc *sata_get_dev(int dev)
  20 {
  21         return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
  22 }
  23 #endif
  24
  25 static unsigned long sata_bread(struct blk_desc *block_dev, lbaint_t start,
  26                                 lbaint_t blkcnt, void *dst)
  27 {
  28         return sata_read(block_dev->devnum, start, blkcnt, dst);
  29 }
  30
  31 static unsigned long sata_bwrite(struct blk_desc *block_dev, lbaint_t start,
  32                                  lbaint_t blkcnt, const void *buffer)
  33 {
  34         return sata_write(block_dev->devnum, start, blkcnt, buffer);
  35 }
  36
  37 int __sata_initialize(void)
  38 {
  39         int rc;
  40         int i;
  41
  42         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
  43                 memset(&sata_dev_desc[i], 0, sizeof(struct blk_desc));
  44                 sata_dev_desc[i].if_type = IF_TYPE_SATA;
  45                 sata_dev_desc[i].devnum = i;
  46                 sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  47                 sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
  48                 sata_dev_desc[i].lba = 0;
  49                 sata_dev_desc[i].blksz = 512;
  50                 sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz);
  51                 sata_dev_desc[i].block_read = sata_bread;
  52                 sata_dev_desc[i].block_write = sata_bwrite;
  53
  54                 rc = init_sata(i);
  55                 if (!rc) {
  56                         rc = scan_sata(i);
  57                         if (!rc && sata_dev_desc[i].lba > 0 &&
  58                             sata_dev_desc[i].blksz > 0)
  59                                 part_init(&sata_dev_desc[i]);
  60                 }
  61         }
  62
  63         return rc;
  64 }
  65 int sata_initialize(void) __attribute__((weak, alias("__sata_initialize")));
  66
  67 __weak int __sata_stop(void)
  68 {
  69         int i, err = 0;
  70
  71         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++)
  72                 err |= reset_sata(i);
  73
  74         if (err)
  75                 printf("Could not reset some SATA devices\n");
  76
  77         return err;
  78 }
  79 int sata_stop(void) __attribute__((weak, alias("__sata_stop")));
  80
  81 U_BOOT_LEGACY_BLK(sata) = {
  82         .if_typename    = "sata",
  83         .if_type        = IF_TYPE_SATA,
  84         .max_devs       = CONFIG_SYS_SATA_MAX_DEVICE,
  85         .desc           = sata_dev_desc,
  86 };