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-rw-r--r--lib_microblaze/bootm.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/lib_microblaze/bootm.c b/lib_microblaze/bootm.c
new file mode 100644
index 0000000..a4fce5a
--- /dev/null
+++ b/lib_microblaze/bootm.c
@@ -0,0 +1,138 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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[],
+ image_header_t *hdr, int verify)
+{
+ int i;
+ ulong checksum;
+
+ ulong rd_data, rd_len;
+ ulong initrd_start, initrd_end;
+ image_header_t *rd_hdr;
+
+ /* First parameter is mapped to $r5 for kernel boot args */
+ void (*theKernel) (char *);
+ char *commandline = getenv ("bootargs");
+
+ theKernel = (void (*)(char *))image_get_ep (hdr);
+
+ /* Check if there is an initrd image */
+ if (argc >= 3) {
+ show_boot_progress (9);
+
+ rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
+ printf ("## Loading Ramdisk Image at %08lx ...\n", rd_hdr);
+
+ if (!image_check_magic (rd_hdr)) {
+ printf ("Bad Magic Number\n");
+ show_boot_progress (-10);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ if (!image_check_magic (rd_hdr)) {
+ printf ("Bad Header Checksum\n");
+ show_boot_progress (-11);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ show_boot_progress (10);
+ print_image_hdr (rd_hdr);
+
+ rd_data = image_get_data (rd_hdr);
+ rd_en = image_get_data_size (rd_hdr);
+
+ if (verify) {
+ printf (" Verifying Checksum ... ");
+ if (!image_check_dcrc (rd_hdr)) {
+ printf ("Bad Data CRC\n");
+ show_boot_progress (-12);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ printf ("OK\n");
+ }
+
+ show_boot_progress (11);
+
+ if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
+ !image_check_arch (rd_hdr, IH_ARCH_MICROBLAZE) ||
+ !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
+ printf ("No Linux Microblaze Ramdisk Image\n");
+ show_boot_progress (-13);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ /*
+ * Now check if we have a multifile image
+ */
+ } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
+ /*
+ * Get second entry data start address and len
+ */
+ show_boot_progress (13);
+ image_multi_getimg (hdr, 1, &rd_data, &rd_len);
+ } else {
+ /*
+ * no initrd image
+ */
+ show_boot_progress (14);
+
+ rd_data = rd_len = 0;
+ }
+
+#ifdef DEBUG
+ if (!rd_data) {
+ printf ("No initrd\n");
+ }
+#endif
+
+ if (rd_data) {
+ initrd_start = rd_data;
+ initrd_end = initrd_start + rd_len;
+ } else {
+ initrd_start = 0;
+ initrd_end = 0;
+ }
+
+ show_boot_progress (15);
+
+#ifdef DEBUG
+ printf ("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong) theKernel);
+#endif
+
+ theKernel (commandline);
+}