ARM: debug: add HiP04 debug uart

Add the support of Hisilicon HiP04 debug uart.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d670c18..9e4e3b7 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -232,6 +232,14 @@
 		  Say Y here if you want kernel low-level debugging support
 		  on HI3716 UART.
 
+	config DEBUG_HIP04_UART
+		bool "Hisilicon HiP01 Debug UART"
+		depends on ARCH_HIP0x
+		select DEBUG_UART_8250
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on HIP04 UART.
+
 	config DEBUG_HIGHBANK_UART
 		bool "Kernel low-level debugging messages via Highbank UART"
 		depends on ARCH_HIGHBANK
@@ -1054,6 +1062,7 @@
 	default 0xd4017000 if DEBUG_MMP_UART2
 	default 0xd4018000 if DEBUG_MMP_UART3
 	default 0xe0000000 if ARCH_SPEAR13XX
+	default 0xe4007000 if DEBUG_HIP04_UART
 	default 0xf0000be0 if ARCH_EBSA110
 	default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
 	default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
@@ -1086,6 +1095,7 @@
 	default 0xf4090000 if ARCH_LPC32XX
 	default 0xf4200000 if ARCH_GEMINI
 	default 0xf7fc9000 if DEBUG_BERLIN_UART
+	default 0xf8007000 if DEBUG_HIP04_UART
 	default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
 	default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
 	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT