diff --git a/configs/bcm7445_defconfig b/configs/bcm7445_defconfig
index b44eaba..81433b0 100644
--- a/configs/bcm7445_defconfig
+++ b/configs/bcm7445_defconfig
@@ -44,7 +44,8 @@
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_STMICRO=y
-CONFIG_SYS_NS16550=y
+CONFIG_SYS_NS16550_SERIAL=y
+CONFIG_SYS_NS16550_REG_SIZE=-4
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_BCMSTB_SPI=y