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

[u-boot] / lib_blackfin / bootm.c

diff --git a/lib_blackfin/bootm.c b/lib_blackfin/bootm.c
new file mode 100644 (file)
index 0000000..1ea80f4
--- /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;
+}