u-boot-brain/include/bootm.h
Simon Glass 4ae42643d0 bootm: Update fixup_silent_linux() to return an error
At present this function fails silently on error. Update it to produce
an error code. Report this error to the user and abort the boot, since it
likely will prevent a successful start.

No tests are added at this stage, since additional refactoring is taking
place in subsequent patches.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-04 16:09:26 -05:00

99 lines
2.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#ifndef _BOOTM_H
#define _BOOTM_H
#include <image.h>
struct cmd_tbl;
#define BOOTM_ERR_RESET (-1)
#define BOOTM_ERR_OVERLAP (-2)
#define BOOTM_ERR_UNIMPLEMENTED (-3)
/*
* Continue booting an OS image; caller already has:
* - copied image header to global variable `header'
* - checked header magic number, checksums (both header & image),
* - verified image architecture (PPC) and type (KERNEL or MULTI),
* - loaded (first part of) image to header load address,
* - disabled interrupts.
*
* @flag: Flags indicating what to do (BOOTM_STATE_...)
* @argc: Number of arguments. Note that the arguments are shifted down
* so that 0 is the first argument not processed by U-Boot, and
* argc is adjusted accordingly. This avoids confusion as to how
* many arguments are available for the OS.
* @images: Pointers to os/initrd/fdt
* @return 1 on error. On success the OS boots so this function does
* not return.
*/
typedef int boot_os_fn(int flag, int argc, char *const argv[],
bootm_headers_t *images);
extern boot_os_fn do_bootm_linux;
extern boot_os_fn do_bootm_vxworks;
int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
void lynxkdi_boot(image_header_t *hdr);
boot_os_fn *bootm_os_get_boot_func(int os);
#if defined(CONFIG_FIT_SIGNATURE)
int bootm_host_load_images(const void *fit, int cfg_noffset);
#endif
int boot_selected_os(int argc, char *const argv[], int state,
bootm_headers_t *images, boot_os_fn *boot_fn);
ulong bootm_disable_interrupts(void);
/* This is a special function used by booti/bootz */
int bootm_find_images(int flag, int argc, char *const argv[], ulong start,
ulong size);
int do_bootm_states(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[], int states, bootm_headers_t *images,
int boot_progress);
void arch_preboot_os(void);
/*
* boards should define this to disable devices when EFI exits from boot
* services.
*
* TODO(sjg@chromium.org>): Update this to use driver model's device_remove().
*/
void board_quiesce_devices(void);
/**
* switch_to_non_secure_mode() - switch to non-secure mode
*/
void switch_to_non_secure_mode(void);
/**
* arch_preboot_os() - arch specific configuration before booting
*/
void arch_preboot_os(void);
/**
* board_preboot_os() - board specific configuration before booting
*/
void board_preboot_os(void);
/*
* fixup_silent_linux() - Process fix-ups for the command line
*
* Updates the 'bootargs' envvar as required. This handles making Linux boot
* silently if requested ('silent_linux' envvar)
*
* @return 0 if OK, -ENOMEM if out of memory
*/
int fixup_silent_linux(void);
#endif