ARM: msm: Add support for MSM8974 SoC

Add support for the Snapdragon 800 MSM8974 SoC, used on the Dragonboard
and others. Board support added in separate patch.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
[olof: split off SoC support in separate patch]
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-msm/Kconfig

@@ -58,9 +58,18 @@ config ARCH_MSM8960
 	select GPIO_MSM_V2
 	select MSM_SCM if SMP
 
+config ARCH_MSM8974
+	bool "MSM8974"
+	select ARM_GIC
+	select CPU_V7
+	select HAVE_ARM_ARCH_TIMER
+	select HAVE_SMP
+	select MSM_SCM if SMP
+	select USE_OF
+
 config ARCH_MSM_DT
 	def_bool y
-	depends on (ARCH_MSM8X60 || ARCH_MSM8960)
+	depends on (ARCH_MSM8X60 || ARCH_MSM8960 || ARCH_MSM8974)
 	select SPARSE_IRQ
 	select USE_OF