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 77