[PATCH] sh: Move CPU subtype configuration to its own Kconfig

Currently the CPU subtype options are cluttering up arch/sh/Kconfig somewhat.

Given that, this moves all of that in to its own arch/sh/mm/Kconfig.  Things
like cache configuration are also moved to this new location.

This also adds support for strict CPU tuning on newer cores, which requires
the addition of as-option.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 43 insertions, 17 deletions

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 67192d6b00d8..08c9515c4806 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -17,10 +17,30 @@
 cflags-y                                := -mb
 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      := -ml
 
+isa-y                                   := any
+isa-$(CONFIG_CPU_SH2)                   := sh2
+isa-$(CONFIG_CPU_SH3)                   := sh3
+isa-$(CONFIG_CPU_SH4)                   := sh4
+isa-$(CONFIG_CPU_SH4A)                  := sh4a
+isa-$(CONFIG_CPU_SH2A)                  := sh2a
+
+isa-$(CONFIG_SH_DSP)                    := $(isa-y)-dsp
+
+ifndef CONFIG_MMU
+isa-y                   := $(isa-y)-nommu
+endif
+
+ifndef CONFIG_SH_FPU
+isa-y                   := $(isa-y)-nofpu
+endif
+
+cflags-y        += $(call as-option,-Wa$(comma)-isa=$(isa-y),)
+
 cflags-$(CONFIG_CPU_SH2)                += -m2
 cflags-$(CONFIG_CPU_SH3)                += -m3
 cflags-$(CONFIG_CPU_SH4)                += -m4 \
         $(call cc-option,-mno-implicit-fp,-m4-nofpu)
+cflags-$(CONFIG_CPU_SH4A)               += $(call cc-option,-m4a-nofpu,)
 
 cflags-$(CONFIG_SH_DSP)                 += -Wa,-dsp
 cflags-$(CONFIG_SH_KGDB)                += -g
@@ -67,9 +87,7 @@ machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE)	:= se/7300
 machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE)      := se/73180
 machdir-$(CONFIG_SH_STB1_HARP)                  := harp
 machdir-$(CONFIG_SH_STB1_OVERDRIVE)             := overdrive
-machdir-$(CONFIG_SH_HP620)                      := hp6xx/hp620
-machdir-$(CONFIG_SH_HP680)                      := hp6xx/hp680
-machdir-$(CONFIG_SH_HP690)                      := hp6xx/hp690
+machdir-$(CONFIG_SH_HP6XX)                      := hp6xx
 machdir-$(CONFIG_SH_CQREEK)                     := cqreek
 machdir-$(CONFIG_SH_DMIDA)                      := dmida
 machdir-$(CONFIG_SH_EC3104)                     := ec3104
@@ -119,31 +137,39 @@ boot := arch/sh/boot
 
 CPPFLAGS_vmlinux.lds := -traditional
 
+ifneq ($(KBUILD_SRC),)
+incdir-prefix   := $(srctree)/include/asm-sh/
+else
+incdir-prefix   :=
+endif
+
 #       Update machine arch and proc symlinks if something which affects
 #       them changed.  We use .arch and .mach to indicate when they were
 #       updated last, otherwise make uses the target directory mtime.
 
 include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/MARKER
         @echo '  SYMLINK include/asm-sh/cpu -> include/asm-sh/$(cpuincdir-y)'
-ifneq ($(KBUILD_SRC),)
-        $(Q)mkdir -p include/asm-sh
-        $(Q)ln -fsn $(srctree)/include/asm-sh/$(cpuincdir-y) include/asm-sh/cpu
-else
-        $(Q)ln -fsn $(cpuincdir-y) include/asm-sh/cpu
-endif
+        $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi
+        $(Q)ln -fsn $(incdir-prefix)$(cpuincdir-y) include/asm-sh/cpu
         @touch $@
 
+#       Most boards have their own mach directories.  For the ones that
+#       don't, just reference the parent directory so the semantics are
+#       kept roughly the same.
+
 include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/MARKER
-        @echo '  SYMLINK include/asm-sh/mach -> include/asm-sh/$(incdir-y)'
-ifneq ($(KBUILD_SRC),)
-        $(Q)mkdir -p include/asm-sh
-        $(Q)ln -fsn $(srctree)/include/asm-sh/$(incdir-y) include/asm-sh/mach
-else
-        $(Q)ln -fsn $(incdir-y) include/asm-sh/mach
-endif
+        @echo -n '  SYMLINK include/asm-sh/mach -> '
+        $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi
+        $(Q)if [ -d $(incdir-prefix)$(incdir-y) ]; then \
+                echo -e 'include/asm-sh/$(incdir-y)'; \
+                ln -fsn $(incdir-prefix)$(incdir-y) \
+                        include/asm-sh/mach; \
+        else \
+                echo -e 'include/asm-sh'; \
+                ln -fsn $(incdir-prefix) include/asm-sh/mach; \
+        fi
         @touch $@
 
-
 archprepare: maketools include/asm-sh/.cpu include/asm-sh/.mach
 
 .PHONY: maketools FORCE