From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 21 Nov 2006 02:12:19 +0000 (+0900)
Subject: sh: Explicit endian selection support.
X-Git-Tag: v2.6.20-rc1~34^2~20^2~32^2~30
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53644087a607040a56d883df612b588814a56f11;p=linux-2.6

sh: Explicit endian selection support.

Previously big endian was simply assumed if little endian was
not set, which led to some cflags ordering issues. There's not
much point to not having a big endian option, so shove one in
a choice and wire it up in the Makefile.

This lets us clean up some of the cflags ordering while we're
at it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index b95dbb8db6..d62183f355 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -294,12 +294,20 @@ config CF_BASE_ADDR
 
 menu "Processor features"
 
-config CPU_LITTLE_ENDIAN
-	bool "Little Endian"
+choice
+	prompt "Endianess selection" 
+	default CPU_LITTLE_ENDIAN
 	help
 	  Some SuperH machines can be configured for either little or big
-	  endian byte order. These modes require different kernels. Say Y if
-	  your machine is little endian, N if it's a big endian machine.
+	  endian byte order. These modes require different kernels.
+
+config CPU_LITTLE_ENDIAN
+	bool "Little Endian"
+
+config CPU_BIG_ENDIAN
+	bool "Big Endian"
+
+endchoice
 
 config SH_FPU
 	bool "FPU support"
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index dc43984bd4..6b3af5ce66 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -13,10 +13,6 @@
 # for "archclean" and "archdep" for cleaning up and making dependencies for
 # this architecture
 #
-
-cflags-y				:= -mb
-cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	:= -ml
-
 isa-y					:= any
 isa-$(CONFIG_SH_DSP)			:= sh
 isa-$(CONFIG_CPU_SH2)			:= sh2
@@ -38,13 +34,16 @@ isa-y			:= $(isa-y)-nofpu
 endif
 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 \
+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_CPU_SH4A)		:= -m4a $(call cc-option,-m4a-nofpu,)
+
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= -mb
+cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -ml
+
+cflags-y	+= $(call as-option,-Wa$(comma)-isa=$(isa-y),)
 
 cflags-$(CONFIG_SH_DSP)			+= -Wa,-dsp
 cflags-$(CONFIG_SH_KGDB)		+= -g