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-rw-r--r--lib_blackfin/bootm.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/lib_blackfin/bootm.c b/lib_blackfin/bootm.c
new file mode 100644
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--- /dev/null
+++ b/lib_blackfin/bootm.c
@@ -0,0 +1,112 @@
+/*
+ * U-boot - bf533_linux.c
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+/* Dummy functions, currently not in Use */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <zlib.h>
+#include <asm/byteorder.h>
+
+#define LINUX_MAX_ENVS 256
+#define LINUX_MAX_ARGS 256
+
+#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */
+
+#ifdef SHARED_RESOURCES
+extern void swap_to(int device_id);
+#endif
+
+extern void flush_instruction_cache(void);
+extern void flush_data_cache(void);
+static char *make_command_line(void);
+
+void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+ bootm_headers_t *images)
+{
+ int (*appl) (char *cmdline);
+ char *cmdline;
+ ulong ep = 0;
+
+ if (!images->autostart)
+ return ;
+
+#ifdef SHARED_RESOURCES
+ swap_to(FLASH);
+#endif
+
+ /* find kernel entry point */
+ if (images->legacy_hdr_valid) {
+ ep = image_get_ep (images->legacy_hdr_os);
+#if defined(CONFIG_FIT)
+ } else if (images->fit_uname_os) {
+ int ret = fit_image_get_entry (images->fit_hdr_os,
+ images->fit_noffset_os, &ep);
+ if (ret) {
+ puts ("Can't get entry point property!\n");
+ goto error;
+ }
+#endif
+ } else {
+ puts ("Could not find kernel entry point!\n");
+ goto error;
+ }
+ appl = (int (*)(char *))ep;
+
+ printf("Starting Kernel at = %x\n", appl);
+ cmdline = make_command_line();
+ if (icache_status()) {
+ flush_instruction_cache();
+ icache_disable();
+ }
+ if (dcache_status()) {
+ flush_data_cache();
+ dcache_disable();
+ }
+ (*appl) (cmdline);
+ /* does not return */
+ return;
+
+error:
+ if (images->autostart)
+ do_reset (cmdtp, flag, argc, argv);
+ return;
+}
+
+char *make_command_line(void)
+{
+ char *dest = (char *)CMD_LINE_ADDR;
+ char *bootargs;
+
+ if ((bootargs = getenv("bootargs")) == NULL)
+ return NULL;
+
+ strncpy(dest, bootargs, 0x1000);
+ dest[0xfff] = 0;
+ return dest;
+}