diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 3f7dc8e..fa1f426 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -12,9 +12,6 @@
 config SYS_MALLOC_F
 	default y
 
-config SYS_MALLOC_F_LEN
-	default 0x800
-
 config SPL_DM
 	default y
 
diff --git a/arch/arm/mach-rockchip/rk3288/Kconfig b/arch/arm/mach-rockchip/rk3288/Kconfig
index 4d0f1b5..d0a7276 100644
--- a/arch/arm/mach-rockchip/rk3288/Kconfig
+++ b/arch/arm/mach-rockchip/rk3288/Kconfig
@@ -19,6 +19,9 @@
 config SYS_SOC
 	default "rockchip"
 
+config SYS_MALLOC_F_LEN
+	default 0x0800
+
 source "board/google/chromebook_jerry/Kconfig"
 
 source "board/firefly/firefly-rk3288/Kconfig"