diff --git a/arch/arm/configs/gflt200_defconfig b/arch/arm/configs/gflt200_defconfig
index d36faff..2457f5b 100644
--- a/arch/arm/configs/gflt200_defconfig
+++ b/arch/arm/configs/gflt200_defconfig
@@ -78,6 +78,8 @@
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
 CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
+CONFIG_PRINTK_PERSIST=y
+CONFIG_PRINTK_TIME=y
 CONFIG_BUG=y
 CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y
@@ -566,7 +568,7 @@
 #
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,115200"
+CONFIG_CMDLINE="console=ttyS0,115200 log_buf_len=1048576"
 # CONFIG_XIP_KERNEL is not set
 # CONFIG_KEXEC is not set