msm: allow uart to be conditionally disabled

Some MSM targets don't select the debug UART in this way. For those we
need to disable this selection mechanism.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

arch/arm/mach-msm/Kconfig

@@ -11,6 +11,7 @@ config ARCH_MSM7X00A
 	select MSM_SMD_PKG3
 	select CPU_V6
 	select MSM_PROC_COMM
+	select HAS_MSM_DEBUG_UART_PHYS
 
 config ARCH_MSM7X30
 	bool "MSM7x30"
@@ -21,6 +22,7 @@ config ARCH_MSM7X30
 	select MSM_REMOTE_SPINLOCK_DEKKERS
 	select MSM_GPIOMUX
 	select MSM_PROC_COMM
+	select HAS_MSM_DEBUG_UART_PHYS
 
 config ARCH_QSD8X50
 	bool "QSD8X50"
@@ -31,6 +33,8 @@ config ARCH_QSD8X50
 	select MSM_REMOTE_SPINLOCK_LDREX
 	select MSM_GPIOMUX
 	select MSM_PROC_COMM
+	select HAS_MSM_DEBUG_UART_PHYS
+
 endchoice
 
 config MSM_SOC_REV_A
@@ -41,6 +45,9 @@ config  ARCH_MSM_ARM11
 config  ARCH_MSM_SCORPION
 	bool
 
+config HAS_MSM_DEBUG_UART_PHYS
+	bool
+
 config  MSM_VIC
 	bool
 
@@ -93,6 +100,7 @@ config MSM_DEBUG_UART
 	default 2 if MSM_DEBUG_UART2
 	default 3 if MSM_DEBUG_UART3
 
+if HAS_MSM_DEBUG_UART_PHYS
 choice
 	prompt "Debug UART"
 
@@ -110,6 +118,7 @@ choice
 	config MSM_DEBUG_UART3
 		bool "UART3"
 endchoice
+endif
 
 config MSM_SMD_PKG3
 	bool

arch/arm/mach-msm/include/mach/debug-macro.S

@@ -19,7 +19,7 @@
 #include <mach/hardware.h>
 #include <mach/msm_iomap.h>
 
-#ifdef CONFIG_MSM_DEBUG_UART
+#ifdef CONFIG_HAS_MSM_DEBUG_UART_PHYS
 	.macro	addruart, rx, tmp
 	@ see if the MMU is enabled and select appropriate base address
 	mrc	p15, 0, \rx, c1, c0