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>

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5765abf..df56c7e 100644 (file)
--- 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 29da84e..42b823c 100644 (file)
--- 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)