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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | // SPDX-License-Identifier: GPL-2.0+ #include <env.h> #include <part.h> #include <spl.h> #include <spl_load.h> #include <ext4fs.h> #include <errno.h> #include <image.h> static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset, ulong size, void *buf) { struct legacy_img_hdr *header; int ret; loff_t actlen; ret = ext4fs_read(buf, file_offset, size, &actlen); if (ret) return ret; if (CONFIG_IS_ENABLED(OS_BOOT)) { header = (struct legacy_img_hdr *)buf; if (image_get_magic(header) != FDT_MAGIC) return size; } return actlen; } int spl_load_image_ext(struct spl_image_info *spl_image, struct spl_boot_device *bootdev, struct blk_desc *block_dev, int partition, const char *filename) { s32 err; loff_t filelen; struct disk_partition part_info = {}; struct spl_load_info load; if (part_get_info(block_dev, partition, &part_info)) { printf("spl: no partition table found\n"); return -1; } ext4fs_set_blk_dev(block_dev, &part_info); err = ext4fs_mount(); if (!err) { printf("%s: ext4fs mount err - %d\n", __func__, err); return -1; } err = ext4fs_open(filename, &filelen); if (err < 0) { puts("spl: ext4fs_open failed\n"); goto end; } spl_load_init(&load, spl_fit_read, NULL, 1); err = spl_load(spl_image, bootdev, &load, filelen, 0); end: if (err < 0) printf("%s: error reading image %s, err - %d\n", __func__, filename, err); return err < 0; } #if CONFIG_IS_ENABLED(OS_BOOT) int spl_load_image_ext_os(struct spl_image_info *spl_image, struct spl_boot_device *bootdev, struct blk_desc *block_dev, int partition) { int err; __maybe_unused loff_t filelen, actlen; struct disk_partition part_info = {}; __maybe_unused char *file; if (part_get_info(block_dev, partition, &part_info)) { printf("spl: no partition table found\n"); return -1; } ext4fs_set_blk_dev(block_dev, &part_info); err = ext4fs_mount(); if (!err) { printf("%s: ext4fs mount err - %d\n", __func__, err); return -1; } if (!CONFIG_IS_ENABLED(ENV_SUPPORT)) goto defaults; file = env_get("falcon_image_file"); if (file) { err = spl_load_image_ext(spl_image, bootdev, block_dev, partition, file); if (err != 0) { puts("spl: falling back to default\n"); goto defaults; } #if IS_ENABLED(CONFIG_SPL_OS_BOOT_ARGS) ext4fs_set_blk_dev(block_dev, &part_info); ext4fs_mount(); file = env_get("falcon_args_file"); if (file) { err = ext4fs_open(file, &filelen); if (err < 0) { puts("spl: ext4fs_open failed\n"); goto defaults; } err = ext4fs_read((void *)CONFIG_SPL_PAYLOAD_ARGS_ADDR, 0, filelen, &actlen); if (err < 0) { printf("spl: error reading args %s, err - %d, falling back to default\n", file, err); goto defaults; } return 0; } else { puts("spl: falcon_args_file not set in environment, falling back to default\n"); } #endif } else { puts("spl: falcon_image_file not set in environment, falling back to default\n"); } defaults: err = spl_load_image_ext(spl_image, bootdev, block_dev, partition, CONFIG_SPL_FS_LOAD_KERNEL_NAME); if (err) return err; #if IS_ENABLED(CONFIG_SPL_OS_BOOT_ARGS) ext4fs_set_blk_dev(block_dev, &part_info); ext4fs_mount(); err = ext4fs_open(CONFIG_SPL_FS_LOAD_ARGS_NAME, &filelen); if (err < 0) puts("spl: ext4fs_open failed\n"); err = ext4fs_read((void *)CONFIG_SPL_PAYLOAD_ARGS_ADDR, 0, filelen, &actlen); if (err < 0) { printf("%s: error reading image %s, err - %d\n", __func__, CONFIG_SPL_FS_LOAD_ARGS_NAME, err); return -1; } #endif return 0; } #else int spl_load_image_ext_os(struct spl_image_info *spl_image, struct spl_boot_device *bootdev, struct blk_desc *block_dev, int partition) { return -ENOSYS; } #endif |