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);
+}