common/spl/spl_sata.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2013
   4  * Texas Instruments, <www.ti.com>
   5  *
   6  * Dan Murphy <dmurphy@ti.com>
   7  *
   8  * Derived work from spl_usb.c
   9  */
  10
  11 #include <common.h>
  12 #include <spl.h>
  13 #include <asm/u-boot.h>
  14 #include <sata.h>
  15 #include <scsi.h>
  16 #include <errno.h>
  17 #include <fat.h>
  18 #include <image.h>
  19
  20 #ifndef CONFIG_SYS_SATA_FAT_BOOT_PARTITION
  21 #define CONFIG_SYS_SATA_FAT_BOOT_PARTITION      1
  22 #endif
  23
  24 #ifndef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
  25 #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
  26 #endif
  27
  28 #ifndef CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR
  29 /* Dummy value to make the compiler happy */
  30 #define CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR 0x100
  31 #endif
  32
  33 static int spl_sata_load_image_raw(struct spl_image_info *spl_image,
  34                 struct blk_desc *stor_dev, unsigned long sector)
  35 {
  36         struct image_header *header;
  37         unsigned long count;
  38         u32 image_size_sectors;
  39         int ret;
  40
  41         header = spl_get_load_buffer(-sizeof(*header), stor_dev->blksz);
  42         count = blk_dread(stor_dev, sector, 1, header);
  43         if (count == 0)
  44                 return -EIO;
  45
  46         ret = spl_parse_image_header(spl_image, header);
  47         if (ret)
  48                 return ret;
  49
  50         image_size_sectors = DIV_ROUND_UP(spl_image->size, stor_dev->blksz);
  51         count = blk_dread(stor_dev, sector, image_size_sectors,
  52                         (void *)spl_image->load_addr);
  53         if (count != image_size_sectors)
  54                 return -EIO;
  55
  56         return 0;
  57 }
  58
  59 static int spl_sata_load_image(struct spl_image_info *spl_image,
  60                                struct spl_boot_device *bootdev)
  61 {
  62         int err = 0;
  63         struct blk_desc *stor_dev;
  64
  65 #if !defined(CONFIG_DM_SCSI) && !defined(CONFIG_AHCI)
  66         err = init_sata(CONFIG_SPL_SATA_BOOT_DEVICE);
  67 #endif
  68         if (err) {
  69 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  70                 printf("spl: sata init failed: err - %d\n", err);
  71 #endif
  72                 return err;
  73         } else {
  74                 /* try to recognize storage devices immediately */
  75                 scsi_scan(false);
  76                 stor_dev = blk_get_devnum_by_type(IF_TYPE_SCSI, 0);
  77                 if (!stor_dev)
  78                         return -ENODEV;
  79         }
  80
  81 #ifdef CONFIG_SPL_OS_BOOT
  82         if (spl_start_uboot() ||
  83             spl_load_image_fat_os(spl_image, stor_dev,
  84                                   CONFIG_SYS_SATA_FAT_BOOT_PARTITION))
  85 #endif
  86         {
  87                 err = -ENOSYS;
  88
  89                 if (IS_ENABLED(CONFIG_SPL_FS_FAT)) {
  90                         err = spl_load_image_fat(spl_image, stor_dev,
  91                                         CONFIG_SYS_SATA_FAT_BOOT_PARTITION,
  92                                         CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
  93                 } else if (IS_ENABLED(CONFIG_SPL_SATA_RAW_U_BOOT_USE_SECTOR)) {
  94                         err = spl_sata_load_image_raw(spl_image, stor_dev,
  95                                 CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR);
  96                 }
  97         }
  98         if (err) {
  99                 puts("Error loading sata device\n");
 100                 return err;
 101         }
 102
 103         return 0;
 104 }
 105 SPL_LOAD_IMAGE_METHOD("SATA", 0, BOOT_DEVICE_SATA, spl_sata_load_image);