diff -urN linux-2.6.30/init/do_mounts.c linux-2.6.30.fli4l/init/do_mounts.c
--- linux-2.6.30/init/do_mounts.c	2009-06-10 05:05:27.000000000 +0200
+++ linux-2.6.30.fli4l/init/do_mounts.c	2009-06-10 08:49:01.565079695 +0200
@@ -394,6 +394,14 @@
 			root_device_name += 5;
 	}
 
+#ifdef CONFIG_INIT_TMPFS
+	{
+		extern int  populate_rootfs(void);
+		if (populate_rootfs())
+			goto out;
+	}
+#endif
+
 	if (initrd_load())
 		goto out;
 
diff -urN linux-2.6.30/init/initramfs.c linux-2.6.30.fli4l/init/initramfs.c
--- linux-2.6.30/init/initramfs.c	2009-06-10 05:05:27.000000000 +0200
+++ linux-2.6.30.fli4l/init/initramfs.c	2009-06-10 09:01:09.896080627 +0200
@@ -565,12 +565,78 @@
 }
 #endif
 
+#ifdef CONFIG_INIT_TMPFS
+static char __initdata tmpfs_options[64] = "mode=755";	/* options passed to tmpfs */
+int __initdata first_populate_rootfs_invocation = 1;
+int __init mount_tmpfs_root(void);
+extern int root_mountflags; 
+
+static int __init inittmpfs_options(char *str)
+{
+	strncpy(tmpfs_options,str,63);
+	tmpfs_options[63] = 0;
+	return 1;
+}
+
+__setup("inittmpfs=", inittmpfs_options);
+
+/*
+ * Mount a root tmpfs. Return 0 on success; -1 on failure.
+ */
+int init_tmpfs (void);
+int __init mount_tmpfs_root(void)
+ {
+	int err;
+	int tmpfs_root_mountflags = root_mountflags;
+	
+	/* create mount point */
+	if ( (err = sys_mkdir("/tmp_root", 0755)) < 0) {
+		printk(KERN_ERR "INITRAMFS: unable to create mountpoint /tmp_root. (%d)\n", err);
+		return -1;
+	}
+
+	printk ("INITRAMFS: Trying to mount tmpfs using options '%s'.\n", tmpfs_options);
+	/* always mount rw,verbose */
+	tmpfs_root_mountflags |= MS_VERBOSE;
+	tmpfs_root_mountflags &= ~MS_RDONLY;
+	err = sys_mount("tmpfs", "/tmp_root", "tmpfs", tmpfs_root_mountflags,
+			tmpfs_options);
+	if (err) {
+		(void)sys_rmdir("/tmp_root");
+		printk(KERN_ERR "INITRAMFS: unable to mount tmpfs filesystem (%d), using normal ramfs.\n", err);
+		return -1;
+	}
+	printk ("INITRAMFS: tmpfs mounted.\n");
+	if ( (err = sys_chdir("/tmp_root")) < 0)
+		printk(KERN_ERR "INITRAMFS: unable change to new root (%d).\n", err);
+	return 0;
+}
+
+int __init populate_rootfs(void)
+{
+	char *err;
+	if (first_populate_rootfs_invocation) {
+		err = unpack_to_rootfs(__initramfs_start,
+				       __initramfs_end - __initramfs_start);
+		if (err)
+			panic(err);
+		if (initrd_start)
+			printk(KERN_INFO "INITRAMFS: delaying decompression of initramfs to make use of tmpfs...\n");
+		first_populate_rootfs_invocation = 0;
+		return 0;
+	} else {
+		if (initrd_start) 
+			mount_tmpfs_root();
+	}
+#else
+
 static int __init populate_rootfs(void)
 {
 	char *err = unpack_to_rootfs(__initramfs_start,
 			 __initramfs_end - __initramfs_start);
 	if (err)
 		panic(err);	/* Failed to decompress INTERNAL initramfs */
+#endif /* CONFIG_INIT_TMPFS */
 	if (initrd_start) {
 #ifdef CONFIG_BLK_DEV_RAM
 		int fd;
@@ -579,7 +645,11 @@
 			initrd_end - initrd_start);
 		if (!err) {
 			free_initrd();
-			return 0;
+#ifdef CONFIG_INIT_TMPFS
+			return 1;
+#else
+ 			return 0;
+#endif /* CONFIG_INIT_TMPFS */
 		} else {
 			clean_rootfs();
 			unpack_to_rootfs(__initramfs_start,
diff -urN linux-2.6.30/init/Kconfig linux-2.6.30.fli4l/init/Kconfig
--- linux-2.6.30/init/Kconfig	2009-06-10 05:05:27.000000000 +0200
+++ linux-2.6.30.fli4l/init/Kconfig	2009-06-10 08:49:01.568084538 +0200
@@ -933,6 +933,15 @@
           by some high performance threaded applications. Disabling
           this option saves about 7k.
 
+config INIT_TMPFS
+	bool "Use tmpfs for initial ramfs" if EMBEDDED
+	default y
+	depends on TMPFS && BLK_DEV_INITRD
+	help
+	  Use tmpfs for initial ramdisk. To achieve this the cpio archive for 
+	  the initial ram is extracted at the end of the boot process. If you
+	  need the contents of the archive earlier you can't use this.
+
 config VM_EVENT_COUNTERS
 	default y
 	bool "Enable VM event counters for /proc/vmstat" if EMBEDDED