diff --git a/configs/am65x_evm_a53_defconfig b/configs/am65x_evm_a53_defconfig
index 01e027f..7f2b825 100644
--- a/configs/am65x_evm_a53_defconfig
+++ b/configs/am65x_evm_a53_defconfig
@@ -90,6 +90,8 @@
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
 CONFIG_DFU_SF=y
+CONFIG_SYS_DFU_DATA_BUF_SIZE=0x20000
+CONFIG_SYS_DFU_MAX_FILE_SIZE=0x800000
 CONFIG_DMA_CHANNELS=y
 CONFIG_TI_K3_NAVSS_UDMA=y
 CONFIG_TI_SCI_PROTOCOL=y