diff --git a/configs/thunderx_88xx_defconfig b/configs/thunderx_88xx_defconfig
index 03b6201..71fbf21 100644
--- a/configs/thunderx_88xx_defconfig
+++ b/configs/thunderx_88xx_defconfig
@@ -26,6 +26,7 @@
 CONFIG_SYS_MAXARGS=64
 CONFIG_SYS_CBSIZE=512
 CONFIG_SYS_PBSIZE=544
+CONFIG_SYS_BOOTM_LEN=0x800000
 # CONFIG_CMD_EXPORTENV is not set
 # CONFIG_CMD_IMPORTENV is not set
 # CONFIG_CMD_EDITENV is not set