common/spl/spl_ubi.c

   1 /*
   2  * Copyright (C) 2016
   3  * Ladislav Michl <ladis@linux-mips.org>
   4  *
   5  * SPDX-License-Identifier: GPL 2.0+ BSD-3-Clause
   6  */
   7
   8 #include <common.h>
   9 #include <config.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 = (struct image_header *)
  66                 (CONFIG_SYS_TEXT_BASE - sizeof(struct image_header));
  67         volumes[0].vol_id = CONFIG_SPL_UBI_LOAD_MONITOR_ID;
  68         volumes[0].load_addr = (void *)header;
  69
  70         ret = ubispl_load_volumes(&info, volumes, 1);
  71         if (!ret)
  72                 spl_parse_image_header(spl_image, header);
  73 out:
  74 #ifdef CONFIG_SPL_NAND_SUPPORT
  75         if (bootdev->boot_device == BOOT_DEVICE_NAND)
  76                 nand_deselect();
  77 #endif
  78         return ret;
  79 }
  80 /* Use priorty 0 so that Ubi will override NAND and ONENAND methods */
  81 SPL_LOAD_IMAGE_METHOD("NAND", 0, BOOT_DEVICE_NAND, spl_ubi_load_image);
  82 SPL_LOAD_IMAGE_METHOD("OneNAND", 0, BOOT_DEVICE_ONENAND, spl_ubi_load_image);