ARM: imx: add debug uart support for IMX50 SoC

Add appropriate UART address definitions and support defines for using the
UARTs of the Freescale IMX50 SoC as debug ports.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

2 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5765abf5ce84..df56c7e65a6d 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -255,6 +255,13 @@ choice
                   Say Y here if you want kernel low-level debugging support
                   on i.MX35.
 
+        config DEBUG_IMX50_UART
+                bool "i.MX50 Debug UART"
+                depends on SOC_IMX50
+                help
+                  Say Y here if you want kernel low-level debugging support
+                  on i.MX50.
+
         config DEBUG_IMX51_UART
                 bool "i.MX51 Debug UART"
                 depends on SOC_IMX51
@@ -897,6 +904,7 @@ config DEBUG_IMX_UART_PORT
                                                 DEBUG_IMX21_IMX27_UART || \
                                                 DEBUG_IMX31_UART || \
                                                 DEBUG_IMX35_UART || \
+                                                DEBUG_IMX50_UART || \
                                                 DEBUG_IMX51_UART || \
                                                 DEBUG_IMX53_UART || \
                                                 DEBUG_IMX6Q_UART || \
@@ -931,6 +939,7 @@ config DEBUG_LL_INCLUDE
                                  DEBUG_IMX21_IMX27_UART || \
                                  DEBUG_IMX31_UART || \
                                  DEBUG_IMX35_UART || \
+                                 DEBUG_IMX50_UART || \
                                  DEBUG_IMX51_UART || \
                                  DEBUG_IMX53_UART ||\
                                  DEBUG_IMX6Q_UART || \
diff --git a/arch/arm/include/debug/imx-uart.h b/arch/arm/include/debug/imx-uart.h
index 29da84e183f4..42b823cd2d22 100644
--- a/arch/arm/include/debug/imx-uart.h
+++ b/arch/arm/include/debug/imx-uart.h
@@ -43,6 +43,14 @@
 #define IMX35_UART_BASE_ADDR(n) IMX35_UART##n##_BASE_ADDR
 #define IMX35_UART_BASE(n)      IMX35_UART_BASE_ADDR(n)
 
+#define IMX50_UART1_BASE_ADDR   0x53fbc000
+#define IMX50_UART2_BASE_ADDR   0x53fc0000
+#define IMX50_UART3_BASE_ADDR   0x5000c000
+#define IMX50_UART4_BASE_ADDR   0x53ff0000
+#define IMX50_UART5_BASE_ADDR   0x63f90000
+#define IMX50_UART_BASE_ADDR(n) IMX50_UART##n##_BASE_ADDR
+#define IMX50_UART_BASE(n)      IMX50_UART_BASE_ADDR(n)
+
 #define IMX51_UART1_BASE_ADDR   0x73fbc000
 #define IMX51_UART2_BASE_ADDR   0x73fc0000
 #define IMX51_UART3_BASE_ADDR   0x7000c000
@@ -85,6 +93,8 @@
 #define UART_PADDR      IMX_DEBUG_UART_BASE(IMX31)
 #elif defined(CONFIG_DEBUG_IMX35_UART)
 #define UART_PADDR      IMX_DEBUG_UART_BASE(IMX35)
+#elif defined(CONFIG_DEBUG_IMX50_UART)
+#define UART_PADDR      IMX_DEBUG_UART_BASE(IMX50)
 #elif defined(CONFIG_DEBUG_IMX51_UART)
 #define UART_PADDR      IMX_DEBUG_UART_BASE(IMX51)
 #elif defined(CONFIG_DEBUG_IMX53_UART)