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  • /*
     * (C) Copyright 2002
     * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
     * Marius Groeger <mgroeger@sysgo.de>
     *
     * Copyright (C) 2001  Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
     *
     * This program is free software; you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation; either version 2 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     *
     */
    
    #include <common.h>
    #include <command.h>
    #include <image.h>
    #include <zlib.h>
    #include <asm/byteorder.h>
    #include <asm/zimage.h>
    
    
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    /*cmd_boot.c*/
    
    int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
    
    	void		*base_ptr;
    	ulong		os_data, os_len;
    	image_header_t	*hdr;
    
    #if defined(CONFIG_FIT)
    	const void	*data;
    	size_t		len;
    #endif
    
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    	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
    		return 1;
    
    
    	if (images->legacy_hdr_valid) {
    		hdr = images->legacy_hdr_os;
    		if (image_check_type (hdr, IH_TYPE_MULTI)) {
    			/* if multi-part image, we need to get first subimage */
    			image_multi_getimg (hdr, 0, &os_data, &os_len);
    		} else {
    			/* otherwise get image data */
    			os_data = image_get_data (hdr);
    			os_len = image_get_data_size (hdr);
    		}
    #if defined(CONFIG_FIT)
    	} else if (images->fit_uname_os) {
    
    		ret = fit_image_get_data (images->fit_hdr_os,
    					images->fit_noffset_os, &data, &len);
    		if (ret) {
    			puts ("Can't get image data/size!\n");
    			goto error;
    		}
    		os_data = (ulong)data;
    		os_len = (ulong)len;
    
    		puts ("Could not find kernel image!\n");
    
    	base_ptr = load_zimage ((void*)os_data, os_len,
    
    			images->rd_start, images->rd_end - images->rd_start, 0);
    
    
    	if (NULL == base_ptr) {
    		printf ("## Kernel loading failed ...\n");
    
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    #ifdef DEBUG
    	printf ("## Transferring control to Linux (at address %08x) ...\n",
    		(u32)base_ptr);
    #endif
    
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    	/* we assume that the kernel is in place */
    	printf("\nStarting kernel ...\n\n");
    
    
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    	boot_zimage(base_ptr);
    
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    }