diff --git a/configs/ph1_ld4_defconfig b/configs/ph1_ld4_defconfig
index 74e759a578b190178a7670b879865497b1710acf..61eb037bc2f890103f9ad927aaef8c6b1d216d2c 100644
--- a/configs/ph1_ld4_defconfig
+++ b/configs/ph1_ld4_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_MACH_PH1_LD4=y
 CONFIG_PFC_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000
diff --git a/configs/ph1_pro4_defconfig b/configs/ph1_pro4_defconfig
index 714339acf30db9c106e7bfcaa60ea74a888ad414..7582fdf91bcb841c1f20d2d91b8e5dfc1eabbd6c 100644
--- a/configs/ph1_pro4_defconfig
+++ b/configs/ph1_pro4_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_PFC_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-pro4-ref"
diff --git a/configs/ph1_sld8_defconfig b/configs/ph1_sld8_defconfig
index df0e0051acdf1b6957b9a7c5bca6f80068cf524d..236e6739a47d014b4625f65db428b20ffedaac8c 100644
--- a/configs/ph1_sld8_defconfig
+++ b/configs/ph1_sld8_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_MACH_PH1_SLD8=y
 CONFIG_PFC_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000