diff --git a/configs/tbs2910_defconfig b/configs/tbs2910_defconfig
index f4fdd38..2ff0e16 100644
--- a/configs/tbs2910_defconfig
+++ b/configs/tbs2910_defconfig
@@ -24,6 +24,8 @@
 # CONFIG_BOOTM_VXWORKS is not set
 # CONFIG_CMD_FDT is not set
 CONFIG_CMD_MEMTEST=y
+CONFIG_SYS_MEMTEST_START=0x10000000
+CONFIG_SYS_MEMTEST_END=0x2f400000
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y