diff --git a/configs/nokia_rx51_defconfig b/configs/nokia_rx51_defconfig
index 2e80688..ec0f2e8 100644
--- a/configs/nokia_rx51_defconfig
+++ b/configs/nokia_rx51_defconfig
@@ -11,12 +11,12 @@
 CONFIG_MACH_TYPE=1955
 CONFIG_SYS_TEXT_BASE=0x80008000
 CONFIG_SYS_MALLOC_LEN=0xc0000
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_TARGET_NOKIA_RX51=y
 CONFIG_SYS_LOAD_ADDR=0x80000000
 CONFIG_OPTIMIZE_INLINING=y
 CONFIG_LTO=y
-# CONFIG_SYS_MALLOC_F is not set
 # CONFIG_FIT is not set
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_BOOTDELAY=30
@@ -71,8 +71,7 @@
 # CONFIG_MMC_VERBOSE is not set
 CONFIG_MMC_OMAP_HS=y
 CONFIG_MTD=y
-CONFIG_CONS_INDEX=3
-CONFIG_SYS_NS16550=y
+CONFIG_DM_SERIAL=y
 CONFIG_SPI=y
 CONFIG_USB=y
 CONFIG_USB_MUSB_UDC=y