diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 64d8e76..b4aeb0f 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1726,8 +1726,7 @@
 
 	find_ramdisk(phys_base);
 
-	if (cmdline_memory_size)
-		lmb_enforce_memory_limit(phys_base + cmdline_memory_size);
+	lmb_enforce_memory_limit(cmdline_memory_size);
 
 	lmb_analyze();
 	lmb_dump_all();
@@ -1964,6 +1963,15 @@
 void free_initmem(void)
 {
 	unsigned long addr, initend;
+	int do_free = 1;
+
+	/* If the physical memory maps were trimmed by kernel command
+	 * line options, don't even try freeing this initmem stuff up.
+	 * The kernel image could have been in the trimmed out region
+	 * and if so the freeing below will free invalid page structs.
+	 */
+	if (cmdline_memory_size)
+		do_free = 0;
 
 	/*
 	 * The init section is aligned to 8k in vmlinux.lds. Page align for >8k pagesizes.
@@ -1978,13 +1986,16 @@
 			((unsigned long) __va(kern_base)) -
 			((unsigned long) KERNBASE));
 		memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
-		p = virt_to_page(page);
 
-		ClearPageReserved(p);
-		init_page_count(p);
-		__free_page(p);
-		num_physpages++;
-		totalram_pages++;
+		if (do_free) {
+			p = virt_to_page(page);
+
+			ClearPageReserved(p);
+			init_page_count(p);
+			__free_page(p);
+			num_physpages++;
+			totalram_pages++;
+		}
 	}
 }