diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 8b2504a233fe..7ea702a08cf0 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -282,6 +282,17 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
 config SMP
 	def_bool y
 
+config HOTPLUG_SIZE_BITS
+	int "Memory hotplug block size(29 => 512MB 30 => 1GB)"
+	depends on SPARSEMEM
+	depends on MEMORY_HOTPLUG
+	default 30
+	help
+	 Selects granularity of hotplug memory. Block
+	 size for memory hotplug is represent as a power
+	 of 2.
+	 If unsure, stick with default value.
+
 config KERNEL_MODE_NEON
 	def_bool y
 
diff --git a/arch/arm64/include/asm/sparsemem.h b/arch/arm64/include/asm/sparsemem.h
index 1f43fcc79738..3d5310f3aad5 100644
--- a/arch/arm64/include/asm/sparsemem.h
+++ b/arch/arm64/include/asm/sparsemem.h
@@ -7,7 +7,11 @@
 
 #ifdef CONFIG_SPARSEMEM
 #define MAX_PHYSMEM_BITS	CONFIG_ARM64_PA_BITS
+#ifndef CONFIG_MEMORY_HOTPLUG
 #define SECTION_SIZE_BITS	30
+#else
+#define SECTION_SIZE_BITS	CONFIG_HOTPLUG_SIZE_BITS
+#endif
 #endif
 
 #endif