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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#ifndef _BOOTM_H
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#define _BOOTM_H
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#include <image.h>
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struct cmd_tbl;
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#define BOOTM_ERR_RESET (-1)
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#define BOOTM_ERR_OVERLAP (-2)
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#define BOOTM_ERR_UNIMPLEMENTED (-3)
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/*
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* Continue booting an OS image; caller already has:
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* - copied image header to global variable `header'
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* - checked header magic number, checksums (both header & image),
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* - verified image architecture (PPC) and type (KERNEL or MULTI),
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* - loaded (first part of) image to header load address,
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* - disabled interrupts.
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*
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* @flag: Flags indicating what to do (BOOTM_STATE_...)
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* @argc: Number of arguments. Note that the arguments are shifted down
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* so that 0 is the first argument not processed by U-Boot, and
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* argc is adjusted accordingly. This avoids confusion as to how
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* many arguments are available for the OS.
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* @images: Pointers to os/initrd/fdt
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* Return: 1 on error. On success the OS boots so this function does
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* not return.
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*/
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typedef int boot_os_fn(int flag, int argc, char *const argv[],
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bootm_headers_t *images);
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extern boot_os_fn do_bootm_linux;
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extern boot_os_fn do_bootm_vxworks;
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int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
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boot_os_fn *bootm_os_get_boot_func(int os);
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#if defined(CONFIG_FIT_SIGNATURE)
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int bootm_host_load_images(const void *fit, int cfg_noffset);
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#endif
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int boot_selected_os(int argc, char *const argv[], int state,
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bootm_headers_t *images, boot_os_fn *boot_fn);
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ulong bootm_disable_interrupts(void);
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/* This is a special function used by booti/bootz */
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int bootm_find_images(int flag, int argc, char *const argv[], ulong start,
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ulong size);
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int do_bootm_states(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[], int states, bootm_headers_t *images,
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int boot_progress);
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void arch_preboot_os(void);
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/*
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* boards should define this to disable devices when EFI exits from boot
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* services.
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*
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* TODO(sjg@chromium.org>): Update this to use driver model's device_remove().
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*/
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void board_quiesce_devices(void);
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/**
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* switch_to_non_secure_mode() - switch to non-secure mode
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*/
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void switch_to_non_secure_mode(void);
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/* Flags to control bootm_process_cmdline() */
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enum bootm_cmdline_t {
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BOOTM_CL_SILENT = 1 << 0, /* Do silent console processing */
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BOOTM_CL_SUBST = 1 << 1, /* Do substitution */
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BOOTM_CL_ALL = 3, /* All substitutions */
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};
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/**
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* arch_preboot_os() - arch specific configuration before booting
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*/
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void arch_preboot_os(void);
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/**
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* board_preboot_os() - board specific configuration before booting
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*/
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void board_preboot_os(void);
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/*
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* bootm_process_cmdline() - Process fix-ups for the command line
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*
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* This handles:
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*
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* - making Linux boot silently if requested ('silent_linux' envvar)
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* - performing substitutions in the command line ('bootargs_subst' envvar)
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*
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* @maxlen must provide enough space for the string being processed plus the
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* resulting string
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*
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* @buf: buffer holding commandline string to adjust
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* @maxlen: Maximum length of buffer at @buf (including \0)
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* @flags: Flags to control what happens (see bootm_cmdline_t)
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* Return: 0 if OK, -ENOMEM if out of memory, -ENOSPC if the commandline is too
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* long
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*/
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int bootm_process_cmdline(char *buf, int maxlen, int flags);
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/**
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* bootm_process_cmdline_env() - Process fix-ups for the command line
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*
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* Updates the 'bootargs' envvar as required. This handles:
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*
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* - making Linux boot silently if requested ('silent_linux' envvar)
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* - performing substitutions in the command line ('bootargs_subst' envvar)
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*
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* @flags: Flags to control what happens (see bootm_cmdline_t)
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* Return: 0 if OK, -ENOMEM if out of memory
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*/
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int bootm_process_cmdline_env(int flags);
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#endif
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