1 // SPDX-License-Identifier: GPL-2.0+
4 * Texas Instruments, <www.ti.com>
6 * Dan Murphy <dmurphy@ti.com>
8 * FAT Image Functions copied from spl_mmc.c
15 #include <asm/u-boot.h>
19 #include <linux/libfdt.h>
21 static int fat_registered;
23 static int spl_register_fat_device(struct blk_desc *block_dev, int partition)
30 err = fat_register_device(block_dev, partition);
32 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
33 printf("%s: fat register err - %d\n", __func__, err);
43 static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset,
44 ulong size, void *buf)
48 char *filename = (char *)load->filename;
50 ret = fat_read_file(filename, buf, file_offset, size, &actread);
57 int spl_load_image_fat(struct spl_image_info *spl_image,
58 struct blk_desc *block_dev, int partition,
62 struct image_header *header;
64 err = spl_register_fat_device(block_dev, partition);
68 header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
70 err = file_fat_read(filename, header, sizeof(struct image_header));
74 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT_FULL) &&
75 image_get_magic(header) == FDT_MAGIC) {
76 err = file_fat_read(filename, (void *)CONFIG_SYS_LOAD_ADDR, 0);
79 err = spl_parse_image_header(spl_image,
80 (struct image_header *)CONFIG_SYS_LOAD_ADDR);
85 } else if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
86 image_get_magic(header) == FDT_MAGIC) {
87 struct spl_load_info load;
90 load.read = spl_fit_read;
92 load.filename = (void *)filename;
95 return spl_load_simple_fit(spl_image, &load, 0, header);
97 err = spl_parse_image_header(spl_image, header);
101 err = file_fat_read(filename,
102 (u8 *)(uintptr_t)spl_image->load_addr, 0);
106 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
108 printf("%s: error reading image %s, err - %d\n",
109 __func__, filename, err);
115 #ifdef CONFIG_SPL_OS_BOOT
116 int spl_load_image_fat_os(struct spl_image_info *spl_image,
117 struct blk_desc *block_dev, int partition)
120 __maybe_unused char *file;
122 err = spl_register_fat_device(block_dev, partition);
126 #if defined(CONFIG_SPL_ENV_SUPPORT) && defined(CONFIG_SPL_OS_BOOT)
127 file = env_get("falcon_args_file");
129 err = file_fat_read(file, (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
131 printf("spl: error reading image %s, err - %d, falling back to default\n",
135 file = env_get("falcon_image_file");
137 err = spl_load_image_fat(spl_image, block_dev,
140 puts("spl: falling back to default\n");
146 puts("spl: falcon_image_file not set in environment, falling back to default\n");
148 puts("spl: falcon_args_file not set in environment, falling back to default\n");
153 err = file_fat_read(CONFIG_SPL_FS_LOAD_ARGS_NAME,
154 (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
156 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
157 printf("%s: error reading image %s, err - %d\n",
158 __func__, CONFIG_SPL_FS_LOAD_ARGS_NAME, err);
163 return spl_load_image_fat(spl_image, block_dev, partition,
164 CONFIG_SPL_FS_LOAD_KERNEL_NAME);
167 int spl_load_image_fat_os(struct spl_image_info *spl_image,
168 struct blk_desc *block_dev, int partition)