diff --git a/configs/T1024RDB_SPIFLASH_defconfig b/configs/T1024RDB_SPIFLASH_defconfig
index daf00b8..39b4537 100644
--- a/configs/T1024RDB_SPIFLASH_defconfig
+++ b/configs/T1024RDB_SPIFLASH_defconfig
@@ -34,6 +34,8 @@
 CONFIG_CMD_GREPENV=y
 CONFIG_CMD_MEMTEST=y
 CONFIG_SYS_ALT_MEMTEST=y
+CONFIG_SYS_MEMTEST_START=0x00200000
+CONFIG_SYS_MEMTEST_END=0x00400000
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SF=y