initial sparc64 version

git-svn-id: svn://coreboot.org/openbios/openbios-devel@58 f158a5a8-5612-0410-a976-696ce0be7e32

arch/sparc64/loadfs.c

@@ -0,0 +1,64 @@
+#include "openbios/config.h"
+#include "openbios/kernel.h"
+#include "libc/diskio.h"
+#include "loadfs.h"
+
+static int load_fd=-1;
+
+int file_open(const char *filename)
+{
+	load_fd=open_io(filename);
+	if(load_fd >= 0)
+            seek_io(load_fd, 0);
+	return load_fd>-1;
+}
+
+void file_close(void)
+{
+	if(load_fd==-1) 
+		return;
+	
+	close_io(load_fd);
+	load_fd=-1;
+}
+
+int lfile_read(void *buf, unsigned long len)
+{
+	int ret = 0;
+
+        if (load_fd >= 0)
+            ret=read_io(load_fd, buf, len);
+	return ret;
+}
+
+int file_seek(unsigned long offset)
+{
+        if (load_fd >= 0)
+            return seek_io(load_fd, offset);
+        else
+            return -1;
+}
+
+unsigned long file_size(void)
+{
+	llong fpos, fsize;
+	
+        if (load_fd < 0)
+            return 0;
+
+	/* save current position */
+	fpos=tell(load_fd);
+
+	/* go to end of file and get position */
+	seek_io(load_fd, -1);
+	fsize=tell(load_fd);
+	
+	/* go back to old position */
+	seek_io(load_fd, 0);
+	seek_io(load_fd, fpos);
+	
+	return fsize;
+}
+
+
+