mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
161 lines
3.5 KiB
C
161 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2014
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* Texas Instruments, <www.ti.com>
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*
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* Dan Murphy <dmurphy@ti.com>
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*
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* FAT Image Functions copied from spl_mmc.c
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*/
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#include <common.h>
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#include <spl.h>
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#include <asm/u-boot.h>
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#include <fat.h>
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#include <errno.h>
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#include <image.h>
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#include <linux/libfdt.h>
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static int fat_registered;
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static int spl_register_fat_device(struct blk_desc *block_dev, int partition)
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{
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int err = 0;
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if (fat_registered)
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return err;
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err = fat_register_device(block_dev, partition);
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if (err) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("%s: fat register err - %d\n", __func__, err);
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#endif
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return err;
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}
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fat_registered = 1;
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return err;
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}
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static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset,
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ulong size, void *buf)
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{
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loff_t actread;
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int ret;
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char *filename = (char *)load->filename;
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ret = fat_read_file(filename, buf, file_offset, size, &actread);
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if (ret)
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return ret;
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return actread;
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}
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int spl_load_image_fat(struct spl_image_info *spl_image,
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struct blk_desc *block_dev, int partition,
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const char *filename)
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{
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int err;
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struct image_header *header;
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err = spl_register_fat_device(block_dev, partition);
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if (err)
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goto end;
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header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
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sizeof(struct image_header));
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err = file_fat_read(filename, header, sizeof(struct image_header));
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if (err <= 0)
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goto end;
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.read = spl_fit_read;
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load.bl_len = 1;
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load.filename = (void *)filename;
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load.priv = NULL;
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return spl_load_simple_fit(spl_image, &load, 0, header);
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} else {
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err = spl_parse_image_header(spl_image, header);
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if (err)
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goto end;
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err = file_fat_read(filename,
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(u8 *)(uintptr_t)spl_image->load_addr, 0);
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}
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end:
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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if (err <= 0)
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printf("%s: error reading image %s, err - %d\n",
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__func__, filename, err);
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#endif
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return (err <= 0);
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}
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_load_image_fat_os(struct spl_image_info *spl_image,
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struct blk_desc *block_dev, int partition)
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{
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int err;
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__maybe_unused char *file;
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err = spl_register_fat_device(block_dev, partition);
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if (err)
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return err;
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#if defined(CONFIG_SPL_ENV_SUPPORT) && defined(CONFIG_SPL_OS_BOOT)
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file = env_get("falcon_args_file");
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if (file) {
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err = file_fat_read(file, (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
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if (err <= 0) {
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printf("spl: error reading image %s, err - %d, falling back to default\n",
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file, err);
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goto defaults;
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}
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file = env_get("falcon_image_file");
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if (file) {
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err = spl_load_image_fat(spl_image, block_dev,
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partition, file);
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if (err != 0) {
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puts("spl: falling back to default\n");
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goto defaults;
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}
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return 0;
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} else
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puts("spl: falcon_image_file not set in environment, falling back to default\n");
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} else
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puts("spl: falcon_args_file not set in environment, falling back to default\n");
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defaults:
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#endif
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err = file_fat_read(CONFIG_SPL_FS_LOAD_ARGS_NAME,
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(void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
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if (err <= 0) {
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#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
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printf("%s: error reading image %s, err - %d\n",
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__func__, CONFIG_SPL_FS_LOAD_ARGS_NAME, err);
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#endif
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return -1;
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}
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return spl_load_image_fat(spl_image, block_dev, partition,
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CONFIG_SPL_FS_LOAD_KERNEL_NAME);
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}
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#else
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int spl_load_image_fat_os(struct spl_image_info *spl_image,
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struct blk_desc *block_dev, int partition)
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{
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return -ENOSYS;
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}
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#endif
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