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[], 36 bootm_headers_t *images) 37 { 38 void *base_ptr = NULL; 39 ulong os_data, os_len; 40 image_header_t *hdr; 41 42 #if defined(CONFIG_FIT) 43 const void *data; 44 size_t len; 45 #endif 46 47 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) 48 return 1; 49 50 if (images->legacy_hdr_valid) { 51 hdr = images->legacy_hdr_os; 52 if (image_check_type(hdr, IH_TYPE_MULTI)) { 53 /* if multi-part image, we need to get first subimage */ 54 image_multi_getimg(hdr, 0, &os_data, &os_len); 55 } else { 56 /* otherwise get image data */ 57 os_data = image_get_data(hdr); 58 os_len = image_get_data_size(hdr); 59 } 60 #if defined(CONFIG_FIT) 61 } else if (images->fit_uname_os) { 62 ret = fit_image_get_data(images->fit_hdr_os, 63 images->fit_noffset_os, &data, &len); 64 if (ret) { 65 puts("Can't get image data/size!\n"); 66 goto error; 67 } 68 os_data = (ulong)data; 69 os_len = (ulong)len; 70 #endif 71 } else { 72 puts("Could not find kernel image!\n"); 73 goto error; 74 } 75 76 #ifdef CONFIG_CMD_ZBOOT 77 base_ptr = load_zimage((void *)os_data, os_len, 78 images->rd_start, images->rd_end - images->rd_start, 0); 79 #endif 80 81 if (NULL == base_ptr) { 82 printf("## Kernel loading failed ...\n"); 83 goto error; 84 85 } 86 87 #ifdef DEBUG 88 printf("## Transferring control to Linux (at address %08x) ...\n", 89 (u32)base_ptr); 90 #endif 91 92 /* we assume that the kernel is in place */ 93 printf("\nStarting kernel ...\n\n"); 94 95 boot_zimage(base_ptr); 96 /* does not return */ 97 98 error: 99 return 1; 100 } 101