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-rw-r--r--lib_i386/bootm.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/lib_i386/bootm.c b/lib_i386/bootm.c
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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>
+
+/*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;
+}