diff --git a/lib_mips/bootm.c b/lib_mips/bootm.c
index 8fe3782..5c46a5a 100644
--- a/lib_mips/bootm.c
+++ b/lib_mips/bootm.c
@@ -54,7 +54,7 @@
 	char	*commandline = getenv ("bootargs");
 	char	env_buf[12];
 	int	ret;
-	const char *cp;
+	char	*cp;
 
 	/* find kernel entry point */
 	if (images->legacy_hdr_valid) {
@@ -89,15 +89,11 @@
 	linux_params_init (UNCACHED_SDRAM (gd->bd->bi_boot_params), commandline);
 
 #ifdef CONFIG_MEMSIZE_IN_BYTES
-	sprintf (env_buf, "%lu", gd->ram_size);
-#ifdef DEBUG
-	printf ("## Giving linux memsize in bytes, %lu\n", gd->ram_size);
-#endif
+	sprintf (env_buf, "%lu", (ulong)gd->ram_size);
+	debug ("## Giving linux memsize in bytes, %lu\n", (ulong)gd->ram_size);
 #else
-	sprintf (env_buf, "%lu", gd->ram_size >> 20);
-#ifdef DEBUG
-	printf ("## Giving linux memsize in MB, %lu\n", gd->ram_size >> 20);
-#endif
+	sprintf (env_buf, "%lu", (ulong)(gd->ram_size >> 20));
+	debug ("## Giving linux memsize in MB, %lu\n", (ulong)(gd->ram_size >> 20));
 #endif /* CONFIG_MEMSIZE_IN_BYTES */
 
 	linux_env_set ("memsize", env_buf);