1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
14 #define BOOTM_ERR_RESET (-1)
15 #define BOOTM_ERR_OVERLAP (-2)
16 #define BOOTM_ERR_UNIMPLEMENTED (-3)
19 * Continue booting an OS image; caller already has:
20 * - copied image header to global variable `header'
21 * - checked header magic number, checksums (both header & image),
22 * - verified image architecture (PPC) and type (KERNEL or MULTI),
23 * - loaded (first part of) image to header load address,
24 * - disabled interrupts.
26 * @flag: Flags indicating what to do (BOOTM_STATE_...)
27 * @argc: Number of arguments. Note that the arguments are shifted down
28 * so that 0 is the first argument not processed by U-Boot, and
29 * argc is adjusted accordingly. This avoids confusion as to how
30 * many arguments are available for the OS.
31 * @images: Pointers to os/initrd/fdt
32 * Return: 1 on error. On success the OS boots so this function does
35 typedef int boot_os_fn(int flag, int argc, char *const argv[],
36 struct bootm_headers *images);
38 extern boot_os_fn do_bootm_linux;
39 extern boot_os_fn do_bootm_vxworks;
41 int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
43 boot_os_fn *bootm_os_get_boot_func(int os);
45 #if defined(CONFIG_FIT_SIGNATURE)
46 int bootm_host_load_images(const void *fit, int cfg_noffset);
49 int boot_selected_os(int argc, char *const argv[], int state,
50 struct bootm_headers *images, boot_os_fn *boot_fn);
52 ulong bootm_disable_interrupts(void);
54 /* This is a special function used by booti/bootz */
55 int bootm_find_images(int flag, int argc, char *const argv[], ulong start,
58 int do_bootm_states(struct cmd_tbl *cmdtp, int flag, int argc,
59 char *const argv[], int states, struct bootm_headers *images,
62 void arch_preboot_os(void);
65 * boards should define this to disable devices when EFI exits from boot
68 * TODO(sjg@chromium.org>): Update this to use driver model's device_remove().
70 void board_quiesce_devices(void);
73 * switch_to_non_secure_mode() - switch to non-secure mode
75 void switch_to_non_secure_mode(void);
77 /* Flags to control bootm_process_cmdline() */
78 enum bootm_cmdline_t {
79 BOOTM_CL_SILENT = 1 << 0, /* Do silent console processing */
80 BOOTM_CL_SUBST = 1 << 1, /* Do substitution */
82 BOOTM_CL_ALL = 3, /* All substitutions */
86 * arch_preboot_os() - arch specific configuration before booting
88 void arch_preboot_os(void);
91 * board_preboot_os() - board specific configuration before booting
93 void board_preboot_os(void);
96 * bootm_process_cmdline() - Process fix-ups for the command line
100 * - making Linux boot silently if requested ('silent_linux' envvar)
101 * - performing substitutions in the command line ('bootargs_subst' envvar)
103 * @maxlen must provide enough space for the string being processed plus the
106 * @buf: buffer holding commandline string to adjust
107 * @maxlen: Maximum length of buffer at @buf (including \0)
108 * @flags: Flags to control what happens (see bootm_cmdline_t)
109 * Return: 0 if OK, -ENOMEM if out of memory, -ENOSPC if the commandline is too
112 int bootm_process_cmdline(char *buf, int maxlen, int flags);
115 * bootm_process_cmdline_env() - Process fix-ups for the command line
117 * Updates the 'bootargs' envvar as required. This handles:
119 * - making Linux boot silently if requested ('silent_linux' envvar)
120 * - performing substitutions in the command line ('bootargs_subst' envvar)
122 * @flags: Flags to control what happens (see bootm_cmdline_t)
123 * Return: 0 if OK, -ENOMEM if out of memory
125 int bootm_process_cmdline_env(int flags);