--- linux-2.6.19/arch/arm/mach-ixp4xx/dsmg600-setup.c~	2006-12-23 22:24:50.000000000 -0600
+++ linux-2.6.19/arch/arm/mach-ixp4xx/dsmg600-setup.c	2006-12-25 23:23:40.000000000 -0600
@@ -159,6 +159,9 @@
 }
 
 static char dsmg600_rtc_probe[] __initdata = "rtc-pcf8563.probe=0,0x51 ";
+static char dsmg600_default_cmdline[] __initdata = 
+	"init=/linuxrc root=/dev/mtdblock2 rootfstype=jffs2 rw "
+	CONFIG_CMDLINE;
 
 static void __init dsmg600_fixup(struct machine_desc *desc,
 		struct tag *tags, char **cmdline, struct meminfo *mi)
@@ -166,6 +169,11 @@
 	struct tag *t = tags;
 	char *p = *cmdline;
 
+	/* A command line in the ATAG list will override this one,
+	 * as is intended.
+	 */
+	strlcpy(*cmdline, dsmg600_default_cmdline, COMMAND_LINE_SIZE);
+
 	/* Find the end of the tags table, taking note of any cmdline tag. */
 	for (; t->hdr.size; t = tag_next(t)) {
 		if (t->hdr.tag == ATAG_CMDLINE) {