mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-26 14:40:41 +00:00
8cffe5bd0d
Add SPL support to be able to detect a USB Mass Storage device connected to a USB host. Once a USB Mass storage device is detected the SPL will load the u-boot.img from a FAT partition to target address. Signed-off-by: Dan Murphy <dmurphy@ti.com>
96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
/*
|
|
* (C) Copyright 2014
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* Dan Murphy <dmurphy@ti.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* FAT Image Functions copied from spl_mmc.c
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <spl.h>
|
|
#include <asm/u-boot.h>
|
|
#include <fat.h>
|
|
#include <image.h>
|
|
|
|
static int fat_registered;
|
|
|
|
#ifdef CONFIG_SPL_FAT_SUPPORT
|
|
static int spl_register_fat_device(block_dev_desc_t *block_dev, int partition)
|
|
{
|
|
int err = 0;
|
|
|
|
if (fat_registered)
|
|
return err;
|
|
|
|
err = fat_register_device(block_dev, partition);
|
|
if (err) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("%s: fat register err - %d\n", __func__, err);
|
|
#endif
|
|
hang();
|
|
}
|
|
|
|
fat_registered = 1;
|
|
|
|
return err;
|
|
}
|
|
|
|
int spl_load_image_fat(block_dev_desc_t *block_dev,
|
|
int partition,
|
|
const char *filename)
|
|
{
|
|
int err;
|
|
struct image_header *header;
|
|
|
|
err = spl_register_fat_device(block_dev, partition);
|
|
if (err)
|
|
goto end;
|
|
|
|
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
|
|
sizeof(struct image_header));
|
|
|
|
err = file_fat_read(filename, header, sizeof(struct image_header));
|
|
if (err <= 0)
|
|
goto end;
|
|
|
|
spl_parse_image_header(header);
|
|
|
|
err = file_fat_read(filename, (u8 *)spl_image.load_addr, 0);
|
|
|
|
end:
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
if (err <= 0)
|
|
printf("%s: error reading image %s, err - %d\n",
|
|
__func__, filename, err);
|
|
#endif
|
|
|
|
return (err <= 0);
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_OS_BOOT
|
|
int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition)
|
|
{
|
|
int err;
|
|
|
|
err = spl_register_fat_device(block_dev, partition);
|
|
if (err)
|
|
return err;
|
|
|
|
err = file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME,
|
|
(void *)CONFIG_SYS_SPL_ARGS_ADDR, 0);
|
|
if (err <= 0) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("%s: error reading image %s, err - %d\n",
|
|
__func__, CONFIG_SPL_FAT_LOAD_ARGS_NAME, err);
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
return spl_load_image_fat(block_dev, partition,
|
|
CONFIG_SPL_FAT_LOAD_KERNEL_NAME);
|
|
}
|
|
#endif
|
|
#endif
|