Kconfig and Makefile support for ARMv7

This patch adds the necessary lines to the Makefile and Kconfig files for
enabling the compilation of the ARMv7 CPU support.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm/Makefile

@@ -45,6 +45,7 @@ comma = ,
 # Note that GCC does not numerically define an architecture version
 # macro, but instead defines a whole series of macros which makes
 # testing for a specific architecture or later rather impossible.
+arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
 arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
 arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
 arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)

arch/arm/mm/Kconfig

@@ -273,6 +273,16 @@ config CPU_32v6K
 	  enabled will not boot on processors with do not support these
 	  instructions.
 
+# ARMv7
+config CPU_V7
+	bool "Support ARM V7 processor"
+	depends on ARCH_INTEGRATOR
+	select CPU_32v7
+	select CPU_ABRT_EV7
+	select CPU_CACHE_V7
+	select CPU_COPY_V6
+	select CPU_TLB_V6
+
 # Figure out what processor architecture version we should be using.
 # This defines the compiler instruction set which depends on the machine type.
 config CPU_32v3
@@ -293,6 +303,9 @@ config CPU_32v5
 config CPU_32v6
 	bool
 
+config CPU_32v7
+	bool
+
 # The abort model
 config CPU_ABRT_EV4
 	bool
@@ -312,6 +325,9 @@ config CPU_ABRT_EV5TJ
 config CPU_ABRT_EV6
 	bool
 
+config CPU_ABRT_EV7
+	bool
+
 # The cache model
 config CPU_CACHE_V3
 	bool
@@ -328,6 +344,9 @@ config CPU_CACHE_V4WB
 config CPU_CACHE_V6
 	bool
 
+config CPU_CACHE_V7
+	bool
+
 config CPU_CACHE_VIVT
 	bool
 
@@ -382,7 +401,7 @@ comment "Processor Features"
 
 config ARM_THUMB
 	bool "Support Thumb user binaries"
-	depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6
+	depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7
 	default y
 	help
 	  Say Y if you want to include kernel support for running user space
@@ -405,14 +424,14 @@ config CPU_BIG_ENDIAN
 
 config CPU_ICACHE_DISABLE
 	bool "Disable I-Cache"
-	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6
+	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6 || CPU_V7
 	help
 	  Say Y here to disable the processor instruction cache. Unless
 	  you have a reason not to or are unsure, say N.
 
 config CPU_DCACHE_DISABLE
 	bool "Disable D-Cache"
-	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6
+	depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6 || CPU_V7
 	help
 	  Say Y here to disable the processor data cache. Unless
 	  you have a reason not to or are unsure, say N.
@@ -432,9 +451,15 @@ config CPU_CACHE_ROUND_ROBIN
 	  Say Y here to use the predictable round-robin cache replacement
 	  policy.  Unless you specifically require this or are unsure, say N.
 
+config CPU_L2CACHE_DISABLE
+	bool "Disable level 2 cache"
+	depends on CPU_V7
+	help
+	  Say Y here to disable the level 2 cache.  If unsure, say N.
+
 config CPU_BPREDICT_DISABLE
 	bool "Disable branch prediction"
-	depends on CPU_ARM1020 || CPU_V6
+	depends on CPU_ARM1020 || CPU_V6 || CPU_V7
 	help
 	  Say Y here to disable branch prediction.  If unsure, say N.
 

arch/arm/mm/Makefile

@@ -17,12 +17,14 @@ obj-$(CONFIG_CPU_ABRT_LV4T)	+= abort-lv4t.o
 obj-$(CONFIG_CPU_ABRT_EV5T)	+= abort-ev5t.o
 obj-$(CONFIG_CPU_ABRT_EV5TJ)	+= abort-ev5tj.o
 obj-$(CONFIG_CPU_ABRT_EV6)	+= abort-ev6.o
+obj-$(CONFIG_CPU_ABRT_EV7)	+= abort-ev7.o
 
 obj-$(CONFIG_CPU_CACHE_V3)	+= cache-v3.o
 obj-$(CONFIG_CPU_CACHE_V4)	+= cache-v4.o
 obj-$(CONFIG_CPU_CACHE_V4WT)	+= cache-v4wt.o
 obj-$(CONFIG_CPU_CACHE_V4WB)	+= cache-v4wb.o
 obj-$(CONFIG_CPU_CACHE_V6)	+= cache-v6.o
+obj-$(CONFIG_CPU_CACHE_V7)	+= cache-v7.o
 
 obj-$(CONFIG_CPU_COPY_V3)	+= copypage-v3.o
 obj-$(CONFIG_CPU_COPY_V4WT)	+= copypage-v4wt.o
@@ -54,3 +56,4 @@ obj-$(CONFIG_CPU_SA1100)	+= proc-sa1100.o
 obj-$(CONFIG_CPU_XSCALE)	+= proc-xscale.o
 obj-$(CONFIG_CPU_XSC3)		+= proc-xsc3.o
 obj-$(CONFIG_CPU_V6)		+= proc-v6.o
+obj-$(CONFIG_CPU_V7)		+= proc-v7.o