diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 7643d2dfa959..965eb874fe30 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -25,6 +25,10 @@ extern unsigned long max_pfn;
  */
 extern unsigned long long max_possible_pfn;
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+extern int defer_free_memblock(void *unused);
+#endif
+
 /**
  * enum memblock_flags - definition of memory region attributes
  * @MEMBLOCK_NONE: no special request
diff --git a/init/main.c b/init/main.c
index 6a83b54d472c..f6c21b2839bf 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1531,6 +1531,10 @@ static noinline void __init kernel_init_freeable(void)
 	smp_init();
 	sched_init_smp();
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+	kthread_run(defer_free_memblock, NULL, "defer_mem");
+#endif
+
 	padata_init();
 	page_alloc_init_late();
 	/* Initialize page ext after all struct pages are initialized. */
diff --git a/mm/memblock.c b/mm/memblock.c
index 4fae62b0855d..cc03b8e7cc54 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -97,6 +97,26 @@ struct pglist_data __refdata contig_page_data;
 EXPORT_SYMBOL(contig_page_data);
 #endif
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+static unsigned long defer_start __initdata;
+static unsigned long defer_end __initdata;
+
+#define DEFAULT_DEFER_FREE_BLOCK_SIZE SZ_256M
+static unsigned long defer_free_block_size __initdata =
+	DEFAULT_DEFER_FREE_BLOCK_SIZE;
+
+static int __init early_defer_free_block_size(char *p)
+{
+	defer_free_block_size = memparse(p, &p);
+
+	pr_debug("defer_free_block_size = 0x%lx\n", defer_free_block_size);
+
+	return 0;
+}
+
+early_param("defer_free_block_size", early_defer_free_block_size);
+#endif
+
 unsigned long max_low_pfn;
 unsigned long min_low_pfn;
 unsigned long max_pfn;
@@ -1912,6 +1932,28 @@ static void __init __free_pages_memory(unsigned long start, unsigned long end)
 	}
 }
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+int __init defer_free_memblock(void *unused)
+{
+	if (defer_start == 0)
+		return 0;
+
+	pr_debug("start = %ld, end = %ld\n", defer_start, defer_end);
+
+	__free_pages_memory(defer_start, defer_end);
+
+	totalram_pages_add(defer_end - defer_start);
+
+	pr_info("%s: size %luM free %luM [%luM - %luM] total %luM\n", __func__,
+		defer_free_block_size >> 20,
+		(defer_end - defer_start) >> (20 - PAGE_SHIFT),
+		defer_end >> (20 - PAGE_SHIFT),
+		defer_start >> (20 - PAGE_SHIFT),
+		totalram_pages() >> (20 - PAGE_SHIFT));
+	return 0;
+}
+#endif
+
 static unsigned long __init __free_memory_core(phys_addr_t start,
 				 phys_addr_t end)
 {
@@ -1922,6 +1964,15 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
 	if (start_pfn >= end_pfn)
 		return 0;
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+	if ((end - start) > defer_free_block_size) {
+		defer_start = start_pfn;
+		defer_end = end_pfn;
+
+		return 0;
+	}
+#endif
+
 	__free_pages_memory(start_pfn, end_pfn);
 
 	return end_pfn - start_pfn;