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-rw-r--r--arch/blackfin/lib/blackfin_linux.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/blackfin/lib/blackfin_linux.c b/arch/blackfin/lib/blackfin_linux.c
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+++ b/arch/blackfin/lib/blackfin_linux.c
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+/*
+ * U-boot - bf533_linux.c
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 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
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+#include <status_led.h>
+#define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
+#else
+#define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */
+
+#ifdef SHARED_RESOURCES
+ extern void swap_to(int device_id);
+#endif
+
+static char *make_command_line(void);
+
+extern image_header_t header;
+void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+ ulong addr, ulong * len_ptr, int verify)
+{
+ int (*appl)(char *cmdline);
+ char *cmdline;
+
+#ifdef SHARED_RESOURCES
+ swap_to(FLASH);
+#endif
+
+ appl = (int (*)(char *))ntohl(header.ih_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);
+}
+
+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;
+}