diff options
Diffstat (limited to 'lib_i386/bootm.c')
| -rw-r--r-- | lib_i386/bootm.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/lib_i386/bootm.c b/lib_i386/bootm.c new file mode 100644 index 0000000..107ebaa --- /dev/null +++ b/lib_i386/bootm.c @@ -0,0 +1,107 @@ +/* + * (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> + +/*cmd_boot.c*/ +extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], + bootm_headers_t *images) +{ + void *base_ptr; + ulong os_data, os_len; + ulong initrd_start, initrd_end; + ulong ep; + image_header_t *hdr; + int ret; +#if defined(CONFIG_FIT) + const void *data; + size_t len; +#endif + + ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_I386, + &initrd_start, &initrd_end); + if (ret) + goto error; + + 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; +#endif + } else { + puts ("Could not find kernel image!\n"); + goto error; + } + + base_ptr = load_zimage ((void*)os_data, os_len, + initrd_start, initrd_end - initrd_start, 0); + + if (NULL == base_ptr) { + printf ("## Kernel loading failed ...\n"); + goto error; + + } + + if (!images->autostart) + return ; + +#ifdef DEBUG + printf ("## Transferring control to Linux (at address %08x) ...\n", + (u32)base_ptr); +#endif + + /* we assume that the kernel is in place */ + printf("\nStarting kernel ...\n\n"); + + boot_zimage(base_ptr); + /* does not return */ + return; + +error: + if (images->autostart) + do_reset (cmdtp, flag, argc, argv); + return; +} |