diff --git a/configs/P1020RDB-PC_SDCARD_defconfig b/configs/P1020RDB-PC_SDCARD_defconfig
index 47ff7eb..ed77af0 100644
--- a/configs/P1020RDB-PC_SDCARD_defconfig
+++ b/configs/P1020RDB-PC_SDCARD_defconfig
@@ -98,6 +98,7 @@
 CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
 CONFIG_SYS_FLASH_EMPTY_INFO=y
 CONFIG_SYS_FLASH_CFI=y
+CONFIG_SYS_MAX_FLASH_SECT=128
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SF_DEFAULT_SPEED=10000000
 CONFIG_SPI_FLASH_SPANSION=y