diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index f955cbc2c35..595f306debc 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -833,6 +833,46 @@ void free_initmem(void)
 	}
 }
 
+#ifdef CONFIG_MEMORY_HOTPLUG
+int arch_add_memory(int nid, u64 start, u64 size)
+{
+	struct pglist_data *pgdata = NODE_DATA(nid);
+	struct zone *zone = pgdata->node_zones + ZONE_MOVABLE;
+	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long nr_pages = size >> PAGE_SHIFT;
+	int ret;
+
+	ret = __add_pages(nid, zone, start_pfn, nr_pages);
+	if (ret)
+		return ret;
+	return platform_physical_active_pages(start_pfn, nr_pages);
+}
+
+int arch_physical_active_memory(u64 start, u64 size)
+{
+	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long nr_pages = size >> PAGE_SHIFT;
+
+	return platform_physical_active_pages(start_pfn, nr_pages);
+}
+
+int arch_physical_remove_memory(u64 start, u64 size)
+{
+	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long nr_pages = size >> PAGE_SHIFT;
+
+	return platform_physical_remove_pages(start_pfn, nr_pages);
+}
+
+int arch_physical_low_power_memory(u64 start, u64 size)
+{
+	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long nr_pages = size >> PAGE_SHIFT;
+
+	return platform_physical_low_power_pages(start_pfn, nr_pages);
+}
+#endif
+
 #ifdef CONFIG_BLK_DEV_INITRD
 
 static int keep_initrd;