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	Export this function for testing. Also add a parameter so that values other than CONFIG_SYS_BOOTM_LEN can be used for the maximum uncompressed size. Signed-off-by: Simon Glass <sjg@chromium.org>
		
			
				
	
	
		
			77 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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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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 * SPDX-License-Identifier:	GPL-2.0+
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 */
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#ifndef _BOOTM_H
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#define _BOOTM_H
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#include <command.h>
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#include <image.h>
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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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int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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void lynxkdi_boot(image_header_t *hdr);
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boot_os_fn *bootm_os_get_boot_func(int os);
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int bootm_host_load_images(const void *fit, int cfg_noffset);
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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_ramdisk_fdt(int flag, int argc, char * const argv[]);
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int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
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		    int states, bootm_headers_t *images, int boot_progress);
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void arch_preboot_os(void);
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/**
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 * bootm_decomp_image() - decompress the operating system
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 *
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 * @comp:	Compression algorithm that is used (IH_COMP_...)
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 * @load:	Destination load address in U-Boot memory
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 * @image_start Image start address (where we are decompressing from)
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 * @type:	OS type (IH_OS_...)
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 * @load_bug:	Place to decompress to
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 * @image_buf:	Address to decompress from
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 * @image_len:	Number of bytes in @image_buf to decompress
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 * @unc_len:	Available space for decompression
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 * @return 0 if OK, -ve on error (BOOTM_ERR_...)
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 */
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int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
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		       void *load_buf, void *image_buf, ulong image_len,
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		       uint unc_len, ulong *load_end);
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#endif
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