ARM: imx: enable low-level debug support for imx6sl

Enable low-level debug support for i.MX6 SoloLite by adding the debug
port definitions for the SoC.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/Kconfig.debug

@@ -251,6 +251,13 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX6Q/DL.
 
+	config DEBUG_IMX6SL_UART
+		bool "i.MX6SL Debug UART"
+		depends on SOC_IMX6SL
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on i.MX6SL.
+
 	config DEBUG_MMP_UART2
 		bool "Kernel low-level debugging message via MMP UART2"
 		depends on ARCH_MMP
@@ -532,7 +539,8 @@ config DEBUG_IMX_UART_PORT
 						DEBUG_IMX35_UART || \
 						DEBUG_IMX51_UART || \
 						DEBUG_IMX53_UART || \
-						DEBUG_IMX6Q_UART
+						DEBUG_IMX6Q_UART || \
+						DEBUG_IMX6SL_UART
 	default 1
 	depends on ARCH_MXC
 	help
@@ -631,7 +639,8 @@ config DEBUG_LL_INCLUDE
 				 DEBUG_IMX35_UART || \
 				 DEBUG_IMX51_UART || \
 				 DEBUG_IMX53_UART ||\
-				 DEBUG_IMX6Q_UART
+				 DEBUG_IMX6Q_UART || \
+				 DEBUG_IMX6SL_UART
 	default "debug/mvebu.S" if DEBUG_MVEBU_UART
 	default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
 	default "debug/nomadik.S" if DEBUG_NOMADIK_UART

arch/arm/include/debug/imx-uart.h

@@ -65,6 +65,14 @@
 #define IMX6Q_UART_BASE_ADDR(n)	IMX6Q_UART##n##_BASE_ADDR
 #define IMX6Q_UART_BASE(n)	IMX6Q_UART_BASE_ADDR(n)
 
+#define IMX6SL_UART1_BASE_ADDR	0x02020000
+#define IMX6SL_UART2_BASE_ADDR	0x02024000
+#define IMX6SL_UART3_BASE_ADDR	0x02034000
+#define IMX6SL_UART4_BASE_ADDR	0x02038000
+#define IMX6SL_UART5_BASE_ADDR	0x02018000
+#define IMX6SL_UART_BASE_ADDR(n) IMX6SL_UART##n##_BASE_ADDR
+#define IMX6SL_UART_BASE(n)	IMX6SL_UART_BASE_ADDR(n)
+
 #define IMX_DEBUG_UART_BASE(soc) soc##_UART_BASE(CONFIG_DEBUG_IMX_UART_PORT)
 
 #ifdef CONFIG_DEBUG_IMX1_UART
@@ -83,6 +91,8 @@
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX53)
 #elif defined(CONFIG_DEBUG_IMX6Q_UART)
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX6Q)
+#elif defined(CONFIG_DEBUG_IMX6SL_UART)
+#define UART_PADDR	IMX_DEBUG_UART_BASE(IMX6SL)
 #endif
 
 #endif /* __DEBUG_IMX_UART_H */