enable serial console on Rpi

target/arm/kernel/raspberry-pi

@@ -9,4 +9,6 @@ CONFIG_BCM2708_VCMEM=y
 CONFIG_BCM2708_DMAER=y
 CONFIG_VFP=y
 CONFIG_BCM2708_VCHIQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_CMDLINE_EXTEND=y

target/config/Config.in.runtime

@@ -133,6 +133,7 @@ config ADK_RUNTIME_CONSOLE_SERIAL_DEVICE
 	default "ttyAMA0" if ADK_TARGET_QEMU_ARM_MODEL_VERSATILEPB || ADK_TARGET_QEMU_ARM_MODEL_VEXPRESS_A9 || ADK_TARGET_SYSTEM_ARM_FM || ADK_TARGET_SYSTEM_QEMU_AARCH64
 	default "ttySC1" if ADK_TARGET_SYSTEM_QEMU_SH
 	default "ttymxc0" if ADK_TARGET_SYSTEM_SOLIDRUN_IMX6
+	default "ttyAMA0" if ADK_TARGET_SYSTEM_RASPBERRY_PI
 	default "ttyS0"
 
 config ADK_RUNTIME_CONSOLE_SERIAL_SPEED

target/config/Config.in.target

@@ -48,7 +48,8 @@ config ADK_TARGET_CMDLINE
 	default "console=ttyS0,115200 console=tty0" if ADK_TARGET_SYSTEM_IBM_X40 && ADK_RUNTIME_VERBOSE_INIT_VGA
 	default "console=tty0 console=ttyS0,115200" if ADK_TARGET_SYSTEM_IBM_X40 && ADK_RUNTIME_VERBOSE_INIT_SERIAL
 	default "console=tty0" if ADK_TARGET_SYSTEM_LEMOTE_YEELONG
-	default "console=tty1" if ADK_TARGET_SYSTEM_RASPBERRY_PI
+	default "console=ttyAMA0 console=tty1" if ADK_TARGET_SYSTEM_RASPBERRY_PI && ADK_RUNTIME_VERBOSE_INIT_VGA
+	default "console=tty1 console=ttyAMA0" if ADK_TARGET_SYSTEM_RASPBERRY_PI && ADK_RUNTIME_VERBOSE_INIT_SERIAL
 	default "console=ttyS0,115200 console=tty0 fbcon=rotate:1" if ADK_TARGET_SYSTEM_SHARP_ZAURUS
 	default "console=ttyS0,9600" if ADK_TARGET_SYSTEM_FON_FON2100
 	default "console=ttyS0,38400" if ADK_TARGET_SYSTEM_PCENGINES_WRAP