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1 /*
2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8 #ifndef _BOOTM_H
9 #define _BOOTM_H
10
11 #include <command.h>
12 #include <image.h>
13
14 #define BOOTM_ERR_RESET (-1)
15 #define BOOTM_ERR_OVERLAP (-2)
16 #define BOOTM_ERR_UNIMPLEMENTED (-3)
17
18 /*
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.
25 *
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
33 * not return.
34 */
35 typedef int boot_os_fn(int flag, int argc, char * const argv[],
36 bootm_headers_t *images);
37
38 extern boot_os_fn do_bootm_linux;
39 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
40 void lynxkdi_boot(image_header_t *hdr);
41
42 boot_os_fn *bootm_os_get_boot_func(int os);
43
44 int bootm_host_load_images(const void *fit, int cfg_noffset);
45
46 int boot_selected_os(int argc, char * const argv[], int state,
47 bootm_headers_t *images, boot_os_fn *boot_fn);
48
49 ulong bootm_disable_interrupts(void);
50
51 /* This is a special function used by booti/bootz */
52 int bootm_find_images(int flag, int argc, char * const argv[]);
53
54 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
55 int states, bootm_headers_t *images, int boot_progress);
56
57 void arch_preboot_os(void);
58
59 /**
60 * bootm_decomp_image() - decompress the operating system
61 *
62 * @comp: Compression algorithm that is used (IH_COMP_...)
63 * @load: Destination load address in U-Boot memory
64 * @image_start Image start address (where we are decompressing from)
65 * @type: OS type (IH_OS_...)
66 * @load_bug: Place to decompress to
67 * @image_buf: Address to decompress from
68 * @image_len: Number of bytes in @image_buf to decompress
69 * @unc_len: Available space for decompression
70 * @return 0 if OK, -ve on error (BOOTM_ERR_...)
71 */
72 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
73 void *load_buf, void *image_buf, ulong image_len,
74 uint unc_len, ulong *load_end);
75
76 #endif