1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2000-2009 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 */ 6 7 #ifndef _BOOTM_H 8 #define _BOOTM_H 9 10 #include <command.h> 11 #include <image.h> 12 13 #define BOOTM_ERR_RESET (-1) 14 #define BOOTM_ERR_OVERLAP (-2) 15 #define BOOTM_ERR_UNIMPLEMENTED (-3) 16 17 /* 18 * Continue booting an OS image; caller already has: 19 * - copied image header to global variable `header' 20 * - checked header magic number, checksums (both header & image), 21 * - verified image architecture (PPC) and type (KERNEL or MULTI), 22 * - loaded (first part of) image to header load address, 23 * - disabled interrupts. 24 * 25 * @flag: Flags indicating what to do (BOOTM_STATE_...) 26 * @argc: Number of arguments. Note that the arguments are shifted down 27 * so that 0 is the first argument not processed by U-Boot, and 28 * argc is adjusted accordingly. This avoids confusion as to how 29 * many arguments are available for the OS. 30 * @images: Pointers to os/initrd/fdt 31 * @return 1 on error. On success the OS boots so this function does 32 * not return. 33 */ 34 typedef int boot_os_fn(int flag, int argc, char * const argv[], 35 bootm_headers_t *images); 36 37 extern boot_os_fn do_bootm_linux; 38 int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); 39 void lynxkdi_boot(image_header_t *hdr); 40 41 boot_os_fn *bootm_os_get_boot_func(int os); 42 43 int bootm_host_load_images(const void *fit, int cfg_noffset); 44 45 int boot_selected_os(int argc, char * const argv[], int state, 46 bootm_headers_t *images, boot_os_fn *boot_fn); 47 48 ulong bootm_disable_interrupts(void); 49 50 /* This is a special function used by booti/bootz */ 51 int bootm_find_images(int flag, int argc, char * const argv[]); 52 53 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 54 int states, bootm_headers_t *images, int boot_progress); 55 56 void arch_preboot_os(void); 57 58 /** 59 * bootm_decomp_image() - decompress the operating system 60 * 61 * @comp: Compression algorithm that is used (IH_COMP_...) 62 * @load: Destination load address in U-Boot memory 63 * @image_start Image start address (where we are decompressing from) 64 * @type: OS type (IH_OS_...) 65 * @load_bug: Place to decompress to 66 * @image_buf: Address to decompress from 67 * @image_len: Number of bytes in @image_buf to decompress 68 * @unc_len: Available space for decompression 69 * @return 0 if OK, -ve on error (BOOTM_ERR_...) 70 */ 71 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, 72 void *load_buf, void *image_buf, ulong image_len, 73 uint unc_len, ulong *load_end); 74 75 /* 76 * boards should define this to disable devices when EFI exits from boot 77 * services. 78 * 79 * TODO(sjg@chromium.org>): Update this to use driver model's device_remove(). 80 */ 81 void board_quiesce_devices(void); 82 83 #endif 84