Merge from bittboy/buildroot@db180c0

arch/Config.in.arc

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+choice
+	prompt "Target CPU"
+	default BR2_arc770d
+	depends on BR2_arc
+	help
+	    Specific CPU to use
+
+config BR2_arc750d
+	bool "ARC 750D"
+
+config BR2_arc770d
+	bool "ARC 770D"
+
+config BR2_archs38
+	bool "ARC HS38"
+	help
+	  Generic ARC HS capable of running Linux, i.e. with MMU,
+	  caches and multiplier. Also it corresponds to the default
+	  configuration in older GNU toolchain versions.
+
+	  If you're not sure which version of ARC HS core you  build for
+	  keep this one.
+
+config BR2_archs38_full
+	bool "ARC HS38 with Quad MAC & FPU"
+	help
+	  Fully featured ARC HS with additional support for
+	   - Dual- and quad multiply and MC oprations
+	   - Double-precision FPU
+
+	  It corresponds to "hs38_slc_full" ARC HS template in
+	  ARChitect.
+
+config BR2_archs4x_rel31
+	bool "ARC HS48 rel 31"
+	help
+	   Latest release of HS48 processor
+	   - Dual- and quad multiply and MC oprations
+	   - Double-precision FPU
+
+endchoice
+
+# Choice of atomic instructions presence
+config BR2_ARC_ATOMIC_EXT
+	bool "Atomic extension (LLOCK/SCOND instructions)"
+	default y if BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+
+config BR2_ARCH
+	default "arc"	if BR2_arcle
+	default "arceb"	if BR2_arceb
+
+config BR2_arc
+	bool
+	default y if BR2_arcle || BR2_arceb
+
+config BR2_ENDIAN
+	default "LITTLE" if BR2_arcle
+	default "BIG"	 if BR2_arceb
+
+config BR2_GCC_TARGET_CPU
+	default "arc700" if BR2_arc750d
+	default "arc700" if BR2_arc770d
+	default "archs"	 if BR2_archs38
+	default "hs38_linux"	 if BR2_archs38_full
+	default "hs4x_rel31"	 if BR2_archs4x_rel31
+
+config BR2_READELF_ARCH_NAME
+	default "ARCompact"	if BR2_arc750d || BR2_arc770d
+	default "ARCv2"		if BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+
+choice
+	prompt "MMU Page Size"
+	default BR2_ARC_PAGE_SIZE_8K
+	help
+	  MMU starting from version 3 (found in ARC 770) and now
+	  version 4 (found in ARC HS38) allows the selection of the
+	  page size during ASIC design creation.
+
+	  The following options are available for MMU v3 and v4: 4kB,
+	  8kB and 16 kB.
+
+	  The default is 8 kB (that really matches the only page size
+	  in MMU v2).  It is important to build a toolchain with page
+	  size matching the hardware configuration. Otherwise
+	  user-space applications will fail at runtime.
+
+config BR2_ARC_PAGE_SIZE_4K
+	bool "4KB"
+	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+
+config BR2_ARC_PAGE_SIZE_8K
+	bool "8KB"
+	help
+	  This is the one and only option available for MMUv2 and
+	  default value for MMU v3 and v4.
+
+config BR2_ARC_PAGE_SIZE_16K
+	bool "16KB"
+	depends on BR2_arc770d || BR2_archs38 || BR2_archs38_full || BR2_archs4x_rel31
+
+endchoice
+
+config BR2_ARC_PAGE_SIZE
+	string
+	default "4K" if BR2_ARC_PAGE_SIZE_4K
+	default "8K" if BR2_ARC_PAGE_SIZE_8K
+	default "16K" if BR2_ARC_PAGE_SIZE_16K
+
+# vim: ft=kconfig
+# -*- mode:kconfig; -*-