common/spl/spl_ubi.c

   1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2016
   4  * Ladislav Michl <ladis@linux-mips.org>
   5  */
   6
   7 #include <common.h>
   8 #include <config.h>
   9 #include <image.h>
  10 #include <nand.h>
  11 #include <onenand_uboot.h>
  12 #include <ubispl.h>
  13 #include <spl.h>
  14
  15 int spl_ubi_load_image(struct spl_image_info *spl_image,
  16                        struct spl_boot_device *bootdev)
  17 {
  18         struct image_header *header;
  19         struct ubispl_info info;
  20         struct ubispl_load volumes[2];
  21         int ret = 1;
  22
  23         switch (bootdev->boot_device) {
  24 #ifdef CONFIG_SPL_NAND_SUPPORT
  25         case BOOT_DEVICE_NAND:
  26                 nand_init();
  27                 info.read = nand_spl_read_block;
  28                 info.peb_size = CONFIG_SYS_NAND_BLOCK_SIZE;
  29                 break;
  30 #endif
  31 #ifdef CONFIG_SPL_ONENAND_SUPPORT
  32         case BOOT_DEVICE_ONENAND:
  33                 info.read = onenand_spl_read_block;
  34                 info.peb_size = CONFIG_SYS_ONENAND_BLOCK_SIZE;
  35                 break;
  36 #endif
  37         default:
  38                 goto out;
  39         }
  40         info.ubi = (struct ubi_scan_info *)CONFIG_SPL_UBI_INFO_ADDR;
  41         info.fastmap = IS_ENABLED(CONFIG_MTD_UBI_FASTMAP);
  42
  43         info.peb_offset = CONFIG_SPL_UBI_PEB_OFFSET;
  44         info.vid_offset = CONFIG_SPL_UBI_VID_OFFSET;
  45         info.leb_start = CONFIG_SPL_UBI_LEB_START;
  46         info.peb_count = CONFIG_SPL_UBI_MAX_PEBS - info.peb_offset;
  47
  48 #ifdef CONFIG_SPL_OS_BOOT
  49         if (!spl_start_uboot()) {
  50                 volumes[0].vol_id = CONFIG_SPL_UBI_LOAD_KERNEL_ID;
  51                 volumes[0].load_addr = (void *)CONFIG_SYS_LOAD_ADDR;
  52                 volumes[1].vol_id = CONFIG_SPL_UBI_LOAD_ARGS_ID;
  53                 volumes[1].load_addr = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
  54
  55                 ret = ubispl_load_volumes(&info, volumes, 2);
  56                 if (!ret) {
  57                         header = (struct image_header *)volumes[0].load_addr;
  58                         spl_parse_image_header(spl_image, header);
  59                         puts("Linux loaded.\n");
  60                         goto out;
  61                 }
  62                 puts("Loading Linux failed, falling back to U-Boot.\n");
  63         }
  64 #endif
  65         header = spl_get_load_buffer(-sizeof(*header), sizeof(header));
  66 #ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME
  67         volumes[0].vol_id = -1;
  68         strncpy(volumes[0].name,
  69                 CONFIG_SPL_UBI_LOAD_MONITOR_VOLNAME,
  70                 UBI_VOL_NAME_MAX + 1);
  71 #else
  72         volumes[0].vol_id = CONFIG_SPL_UBI_LOAD_MONITOR_ID;
  73 #endif
  74         volumes[0].load_addr = (void *)header;
  75
  76         ret = ubispl_load_volumes(&info, volumes, 1);
  77         if (!ret)
  78                 spl_parse_image_header(spl_image, header);
  79 out:
  80 #ifdef CONFIG_SPL_NAND_SUPPORT
  81         if (bootdev->boot_device == BOOT_DEVICE_NAND)
  82                 nand_deselect();
  83 #endif
  84         return ret;
  85 }
  86 /* Use priorty 0 so that Ubi will override NAND and ONENAND methods */
  87 SPL_LOAD_IMAGE_METHOD("NAND", 0, BOOT_DEVICE_NAND, spl_ubi_load_image);
  88 SPL_LOAD_IMAGE_METHOD("OneNAND", 0, BOOT_DEVICE_ONENAND, spl_ubi_load_image);