diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index f15f82bf3a50..0919191b8aa5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -224,6 +224,20 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX6Q UART4.
 
+	config DEBUG_MMP_UART2
+		bool "Kernel low-level debugging message via MMP UART2"
+		depends on ARCH_MMP
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on MMP UART2.
+
+	config DEBUG_MMP_UART3
+		bool "Kernel low-level debugging message via MMP UART3"
+		depends on ARCH_MMP
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on MMP UART3.
+
 	config DEBUG_MSM_UART1
 		bool "Kernel low-level debugging messages via MSM UART1"
 		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
diff --git a/arch/arm/configs/mmp2_defconfig b/arch/arm/configs/mmp2_defconfig
index 5a584520db2f..f1cb95e58af0 100644
--- a/arch/arm/configs/mmp2_defconfig
+++ b/arch/arm/configs/mmp2_defconfig
@@ -16,7 +16,7 @@ CONFIG_PREEMPT=y
 CONFIG_AEABI=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="root=/dev/nfs rootfstype=nfs nfsroot=192.168.1.100:/nfsroot/ ip=192.168.1.101:192.168.1.100::255.255.255.0::eth0:on console=ttyS2,38400 mem=128M user_debug=255"
+CONFIG_CMDLINE="root=/dev/nfs rootfstype=nfs nfsroot=192.168.1.100:/nfsroot/ ip=192.168.1.101:192.168.1.100::255.255.255.0::eth0:on console=ttyS2,38400 mem=128M user_debug=255 earlyprintk"
 CONFIG_VFP=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -90,6 +90,9 @@ CONFIG_DEBUG_INFO=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
 # CONFIG_DYNAMIC_DEBUG is not set
 CONFIG_DEBUG_USER=y
+CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_MMP_UART3=y
+CONFIG_EARLY_PRINTK=y
 CONFIG_DEBUG_ERRORS=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/pxa910_defconfig b/arch/arm/configs/pxa910_defconfig
index 1cd381e1d47d..191118caa5c0 100644
--- a/arch/arm/configs/pxa910_defconfig
+++ b/arch/arm/configs/pxa910_defconfig
@@ -17,7 +17,7 @@ CONFIG_PREEMPT=y
 CONFIG_AEABI=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="root=/dev/nfs rootfstype=nfs nfsroot=192.168.2.100:/nfsroot/ ip=192.168.2.101:192.168.2.100::255.255.255.0::eth0:on console=ttyS0,115200 mem=128M"
+CONFIG_CMDLINE="root=/dev/nfs rootfstype=nfs nfsroot=192.168.2.100:/nfsroot/ ip=192.168.2.101:192.168.2.100::255.255.255.0::eth0:on console=ttyS0,115200 mem=128M earlyprintk"
 CONFIG_FPE_NWFPE=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -66,5 +66,7 @@ CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_USER=y
 CONFIG_DEBUG_ERRORS=y
 CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_MMP_UART2=y
+CONFIG_EARLY_PRINTK=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_CRC_CCITT=y
diff --git a/arch/arm/mach-mmp/include/mach/debug-macro.S b/arch/arm/mach-mmp/include/mach/debug-macro.S
index b6f14d203c25..5c3cc29688ab 100644
--- a/arch/arm/mach-mmp/include/mach/debug-macro.S
+++ b/arch/arm/mach-mmp/include/mach/debug-macro.S
@@ -9,13 +9,21 @@
  * published by the Free Software Foundation.
  */
 
+#if defined(CONFIG_DEBUG_MMP_UART2)
+#define MMP_UART_OFFSET	0x00017000
+#elif defined(CONFIG_DEBUG_MMP_UART3)
+#define MMP_UART_OFFSET	0x00018000
+#else
+#error "Select uart for DEBUG_LL"
+#endif
+
 #include <mach/addr-map.h>
 
 		.macro	addruart, rp, rv, tmp
 		ldr	\rp, =APB_PHYS_BASE		@ physical
 		ldr	\rv, =APB_VIRT_BASE		@ virtual
-		orr	\rp, \rp, #0x00017000
-		orr	\rv, \rv, #0x00017000
+		orr	\rp, \rp, #MMP_UART_OFFSET
+		orr	\rv, \rv, #MMP_UART_OFFSET
 		.endm
 
 #define UART_SHIFT	2