1 /* 2 * (C) Copyright 2002 3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> 4 * Marius Groeger <mgroeger@sysgo.de> 5 * 6 * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) 7 * 8 * See file CREDITS for list of people who contributed to this 9 * project. 10 * 11 * This program is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU General Public License as 13 * published by the Free Software Foundation; either version 2 of 14 * the License, or (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 24 * MA 02111-1307 USA 25 */ 26 27 #include <common.h> 28 #include <command.h> 29 #include <image.h> 30 #include <u-boot/zlib.h> 31 #include <asm/byteorder.h> 32 #include <asm/zimage.h> 33 34 /*cmd_boot.c*/ 35 int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) 36 { 37 void *base_ptr; 38 ulong os_data, os_len; 39 image_header_t *hdr; 40 41 #if defined(CONFIG_FIT) 42 const void *data; 43 size_t len; 44 #endif 45 46 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) 47 return 1; 48 49 if (images->legacy_hdr_valid) { 50 hdr = images->legacy_hdr_os; 51 if (image_check_type (hdr, IH_TYPE_MULTI)) { 52 /* if multi-part image, we need to get first subimage */ 53 image_multi_getimg (hdr, 0, &os_data, &os_len); 54 } else { 55 /* otherwise get image data */ 56 os_data = image_get_data (hdr); 57 os_len = image_get_data_size (hdr); 58 } 59 #if defined(CONFIG_FIT) 60 } else if (images->fit_uname_os) { 61 ret = fit_image_get_data (images->fit_hdr_os, 62 images->fit_noffset_os, &data, &len); 63 if (ret) { 64 puts ("Can't get image data/size!\n"); 65 goto error; 66 } 67 os_data = (ulong)data; 68 os_len = (ulong)len; 69 #endif 70 } else { 71 puts ("Could not find kernel image!\n"); 72 goto error; 73 } 74 75 base_ptr = load_zimage ((void*)os_data, os_len, 76 images->rd_start, images->rd_end - images->rd_start, 0); 77 78 if (NULL == base_ptr) { 79 printf ("## Kernel loading failed ...\n"); 80 goto error; 81 82 } 83 84 #ifdef DEBUG 85 printf ("## Transferring control to Linux (at address %08x) ...\n", 86 (u32)base_ptr); 87 #endif 88 89 /* we assume that the kernel is in place */ 90 printf("\nStarting kernel ...\n\n"); 91 92 boot_zimage(base_ptr); 93 /* does not return */ 94 95 error: 96 return 1; 97 } 98