[ARM] armv7: add Makefile and Kconfig entries

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>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ab9f2d4bd04ed0a15b948381070c99eff7d7626b..00ea4305ad5d2bb1e1d690544235a852793e5986 100644 (file)
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -47,8 +47,13 @@ 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)
+# Only override the compiler option if ARMv6. The ARMv6K extensions are
+# always available in ARMv7
+ifeq ($(CONFIG_CPU_32v6),y)
 arch-$(CONFIG_CPU_32v6K)       :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
+endif
 arch-$(CONFIG_CPU_32v5)                :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
 arch-$(CONFIG_CPU_32v4T)       :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
 arch-$(CONFIG_CPU_32v4)                :=-D__LINUX_ARM_ARCH__=4 -march=armv4

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index e684e9b38216dce35440d32025208f2041a41454..b81391a4e374a3ddc013bd677364ef40501d1aea 100644 (file)
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -366,6 +366,19 @@ 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_32v6K
+       select CPU_32v7
+       select CPU_ABRT_EV7
+       select CPU_CACHE_V7
+       select CPU_CACHE_VIPT
+       select CPU_CP15_MMU
+       select CPU_COPY_V6 if MMU
+       select CPU_TLB_V6 if MMU
+
 # 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
@@ -391,6 +404,9 @@ config CPU_32v5
 config CPU_32v6
        bool
 
+config CPU_32v7
+       bool
+
 # The abort model
 config CPU_ABRT_NOMMU
        bool
@@ -413,6 +429,9 @@ config CPU_ABRT_EV5TJ
 config CPU_ABRT_EV6
        bool
 
+config CPU_ABRT_EV7
+       bool
+
 # The cache model
 config CPU_CACHE_V3
        bool
@@ -429,6 +448,9 @@ config CPU_CACHE_V4WB
 config CPU_CACHE_V6
        bool
 
+config CPU_CACHE_V7
+       bool
+
 config CPU_CACHE_VIVT
        bool
 
@@ -503,7 +525,7 @@ comment "Processor Features"
 
 config ARM_THUMB
        bool "Support Thumb user binaries"
-       depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6
+       depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || 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
@@ -578,9 +600,15 @@ 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 || CPU_XSC3
+       depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3 || CPU_V7
        help
          Say Y here to disable branch prediction.  If unsure, say N.
 

diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 2f8b95947774dc8d263ce753ba7cb64e2299d241..b5bd335ff14aad48f44331c0c17e5462f38d433d 100644 (file)
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -24,12 +24,14 @@ 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
@@ -66,5 +68,6 @@ 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
 
 obj-$(CONFIG_CACHE_L2X0)       += cache-l2x0.o