mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
eafd5410af
This provides a way to load a FIT containing U-Boot and a selection of device tree files from a File system. Making sure that all the reads and writes are aligned to their respective needs. Tested-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> [trini: Make this still apply with Michal's alignment change for 'fit'] Signed-off-by: Tom Rini <trini@konsulko.com>
144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
/*
|
|
* (C) Copyright 2012
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#ifndef _SPL_H_
|
|
#define _SPL_H_
|
|
|
|
/* Platform-specific defines */
|
|
#include <linux/compiler.h>
|
|
#include <asm/spl.h>
|
|
|
|
/* Value in r0 indicates we booted from U-Boot */
|
|
#define UBOOT_NOT_LOADED_FROM_SPL 0x13578642
|
|
|
|
/* Boot type */
|
|
#define MMCSD_MODE_UNDEFINED 0
|
|
#define MMCSD_MODE_RAW 1
|
|
#define MMCSD_MODE_FS 2
|
|
#define MMCSD_MODE_EMMCBOOT 3
|
|
|
|
struct spl_image_info {
|
|
const char *name;
|
|
u8 os;
|
|
u32 load_addr;
|
|
u32 entry_point;
|
|
u32 size;
|
|
u32 flags;
|
|
};
|
|
|
|
/*
|
|
* Information required to load data from a device
|
|
*
|
|
* @dev: Pointer to the device, e.g. struct mmc *
|
|
* @priv: Private data for the device
|
|
* @bl_len: Block length for reading in bytes
|
|
* @filename: Name of the fit image file.
|
|
* @read: Function to call to read from the device
|
|
*/
|
|
struct spl_load_info {
|
|
void *dev;
|
|
void *priv;
|
|
int bl_len;
|
|
const char *filename;
|
|
ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
|
|
void *buf);
|
|
};
|
|
|
|
/**
|
|
* spl_load_simple_fit() - Loads a fit image from a device.
|
|
* @info: Structure containing the information required to load data.
|
|
* @sector: Sector number where FIT image is located in the device
|
|
* @fdt: Pointer to the copied FIT header.
|
|
*
|
|
* Reads the FIT image @sector in the device. Loads u-boot image to
|
|
* specified load address and copies the dtb to end of u-boot image.
|
|
* Returns 0 on success.
|
|
*/
|
|
int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt);
|
|
|
|
#define SPL_COPY_PAYLOAD_ONLY 1
|
|
|
|
extern struct spl_image_info spl_image;
|
|
|
|
/* SPL common functions */
|
|
void preloader_console_init(void);
|
|
u32 spl_boot_device(void);
|
|
u32 spl_boot_mode(void);
|
|
void spl_set_header_raw_uboot(void);
|
|
int spl_parse_image_header(const struct image_header *header);
|
|
void spl_board_prepare_for_linux(void);
|
|
void spl_board_prepare_for_boot(void);
|
|
void __noreturn jump_to_image_linux(void *arg);
|
|
int spl_start_uboot(void);
|
|
void spl_display_print(void);
|
|
|
|
/* NAND SPL functions */
|
|
int spl_nand_load_image(void);
|
|
|
|
/* OneNAND SPL functions */
|
|
int spl_onenand_load_image(void);
|
|
|
|
/* NOR SPL functions */
|
|
int spl_nor_load_image(void);
|
|
|
|
/* MMC SPL functions */
|
|
int spl_mmc_load_image(u32 boot_device);
|
|
|
|
/* YMODEM SPL functions */
|
|
int spl_ymodem_load_image(void);
|
|
|
|
/* SPI SPL functions */
|
|
int spl_spi_load_image(void);
|
|
|
|
/* Ethernet SPL functions */
|
|
int spl_net_load_image(const char *device);
|
|
|
|
/* USB SPL functions */
|
|
int spl_usb_load_image(void);
|
|
|
|
/* SATA SPL functions */
|
|
int spl_sata_load_image(void);
|
|
|
|
/* SPL FAT image functions */
|
|
int spl_load_image_fat(struct blk_desc *block_dev, int partition,
|
|
const char *filename);
|
|
int spl_load_image_fat_os(struct blk_desc *block_dev, int partition);
|
|
|
|
void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
|
|
|
|
/* SPL EXT image functions */
|
|
int spl_load_image_ext(struct blk_desc *block_dev, int partition,
|
|
const char *filename);
|
|
int spl_load_image_ext_os(struct blk_desc *block_dev, int partition);
|
|
|
|
/**
|
|
* spl_init() - Set up device tree and driver model in SPL if enabled
|
|
*
|
|
* Call this function in board_init_f() if you want to use device tree and
|
|
* driver model early, before board_init_r() is called. This function will
|
|
* be called from board_init_r() if not called earlier.
|
|
*
|
|
* If this is not called, then driver model will be inactive in SPL's
|
|
* board_init_f(), and no device tree will be available.
|
|
*/
|
|
int spl_init(void);
|
|
|
|
#ifdef CONFIG_SPL_BOARD_INIT
|
|
void spl_board_init(void);
|
|
#endif
|
|
|
|
/**
|
|
* spl_was_boot_source() - check if U-Boot booted from SPL
|
|
*
|
|
* This will normally be true, but if U-Boot jumps to second U-Boot, it will
|
|
* be false. This should be implemented by board-specific code.
|
|
*
|
|
* @return true if U-Boot booted from SPL, else false
|
|
*/
|
|
bool spl_was_boot_source(void);
|
|
|
|
#endif
|