diff --git a/boards/nxp/rd_rw612_bga/Kconfig.defconfig b/boards/nxp/rd_rw612_bga/Kconfig.defconfig
index 376f96da2b3..88123b61899 100644
--- a/boards/nxp/rd_rw612_bga/Kconfig.defconfig
+++ b/boards/nxp/rd_rw612_bga/Kconfig.defconfig
@@ -5,6 +5,9 @@
 
 if BOARD_RD_RW612_BGA
 
+config FLASH_LOAD_SIZE
+	default 0x400000 if !BOOTLOADER_MCUBOOT && !NXP_MONOLITHIC_BT
+
 if LVGL
 
 # Enable DMA for LCDIC