[PATCH] ARM: imx: move selection between i.MX21 and i.MX27 to CPU family choice

[u.kleine-koenig@pengutronix.de (Uwe Kleine-König)]

The only use of selecting MX2-based before was to get the choice to select
between i.MX21 and i.MX27. So better provide this choice directly.

Note that this has an influence on reduced i.MX21 configs because the
former default "MACH_MX21" for the "CPUs" choice makes MACH_MX21 not
appear in the reduced config and so the default for "Freescale CPU family:"
(i.e. ARCH_MX3) is used now.  mx21_defconfig is adapted not to be affected
by this problem.

Signed-off-by: Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>
---
 arch/arm/configs/mx21_defconfig |    2 +-
 arch/arm/configs/mx27_defconfig |    1 -
 arch/arm/mach-imx/Kconfig       |   20 --------------------
 arch/arm/plat-mxc/Kconfig       |   19 ++++++++++++++++---
 4 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/arch/arm/configs/mx21_defconfig b/arch/arm/configs/mx21_defconfig
index a5a71c2..761fea6 100644
--- a/arch/arm/configs/mx21_defconfig
+++ b/arch/arm/configs/mx21_defconfig
@@ -12,7 +12,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_MXC=y
-CONFIG_ARCH_MX2=y
+CONFIG_MACH_MX21=y
 CONFIG_MACH_MX21ADS=y
 CONFIG_MXC_PWM=y
 CONFIG_NO_HZ=y
diff --git a/arch/arm/configs/mx27_defconfig b/arch/arm/configs/mx27_defconfig
index 3817c60..098d77d 100644
--- a/arch/arm/configs/mx27_defconfig
+++ b/arch/arm/configs/mx27_defconfig
@@ -17,7 +17,6 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_MXC=y
-CONFIG_ARCH_MX2=y
 CONFIG_MACH_MX27=y
 CONFIG_MACH_MX27ADS=y
 CONFIG_MACH_PCM038=y
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index c172418..c94cbad 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -53,26 +53,6 @@ config MACH_SCB9328
 
 endif
 
-if ARCH_MX2
-
-choice
-	prompt "CPUs:"
-	default MACH_MX21
-
-config MACH_MX21
-	bool "i.MX21 support"
-	help
-	  This enables support for Freescale's MX2 based i.MX21 processor.
-
-config MACH_MX27
-	bool "i.MX27 support"
-	help
-	  This enables support for Freescale's MX2 based i.MX27 processor.
-
-endchoice
-
-endif
-
 if MACH_MX21
 
 comment "MX21 platforms:"
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 389f217..03a9a9e 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -2,6 +2,10 @@ if ARCH_MXC
 
 source "arch/arm/plat-mxc/devices/Kconfig"
 
+config ARCH_MX2
+	# don't use this in new code
+	bool
+
 menu "Freescale MXC Implementations"
 
 choice
@@ -14,16 +18,25 @@ config ARCH_MX1
 	help
 	  This enables support for systems based on the Freescale i.MX1 family
 
-config ARCH_MX2
-	bool "MX2-based"
+config MACH_MX21
+	bool "MX21-based"
+	select ARCH_MX2
 	help
-	  This enables support for systems based on the Freescale i.MX2 family
+	  This enables support for systems based on the Freescale i.MX21 family
 
 config ARCH_MX25
 	bool "MX25-based"
+	# note that i.MX25 doesn't match the expectations that are currently
+	# called ARCH_MX2
 	help
 	  This enables support for systems based on the Freescale i.MX25 family
 
+config MACH_MX27
+	bool "MX27-based"
+	select ARCH_MX2
+	help
+	  This enables support for Freescale's MX2 based i.MX27 processor.
+
 config ARCH_MX3
 	bool "MX3-based"
 	select CPU_V6
-- 
1.7.2.3