Merge branch 'new-image' of git://www.denx.de/git/u-boot-testing

[u-boot] / lib_i386 / bootm.c

diff --git a/lib_i386/bootm.c b/lib_i386/bootm.c
new file mode 100644 (file)
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;
+}