m68k: mcf5445x: move CPU type to Kconfig and refactor config.mk

This commit intends to stop grepping CPU type in
arch/m68k/cpu/mcf5445x/config.mk.

Move the CPU type config options from include/configs/*.h
to arch/m68k/Kconfig and refactor the CPU flags select in
arch/m68k/cpu/mcf5445x/config.mk.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Angelo Dureghello <angelo@sysam.it>

arch/m68k/Kconfig

@@ -23,6 +23,12 @@ config MCF532x
 config MCF537x
 	bool
 
+config MCF5441x
+	bool
+
+config MCF5445x
+	bool
+
 # processor type
 config M5208
 	bool
@@ -69,6 +75,18 @@ config M5373
 	select MCF532x
 	select MCF537x
 
+config M54418
+	bool
+	select MCF5441x
+
+config M54451
+	bool
+	select MCF5445x
+
+config M54455
+	bool
+	select MCF5445x
+
 choice
 	prompt "Target select"
 
@@ -132,12 +150,15 @@ config TARGET_M5373EVB
 
 config TARGET_M54418TWR
 	bool "Support M54418TWR"
+	select M54418
 
 config TARGET_M54451EVB
 	bool "Support M54451EVB"
+	select M54451
 
 config TARGET_M54455EVB
 	bool "Support M54455EVB"
+	select M54455
 
 config TARGET_M5475EVB
 	bool "Support M5475EVB"

arch/m68k/cpu/mcf5445x/config.mk

@@ -9,14 +9,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-cfg=$(srctree)/include/configs/$(CONFIG_SYS_CONFIG_NAME:"%"=%).h
-is5441x:=$(shell grep CONFIG_MCF5441x $(cfg))
-
-ifneq (,$(findstring CONFIG_MCF5441x,$(is5441x)))
-PLATFORM_CPPFLAGS += -mcpu=54418 -fPIC
-else
-PLATFORM_CPPFLAGS += -mcpu=54455 -fPIC
-endif
+cpuflags-$(CONFIG_MCF5441x) := -mcpu=54418 -fPIC
+cpuflags-$(CONFIG_MCF5445x) := -mcpu=54455 -fPIC
 
 ifneq (,$(findstring -linux-,$(shell $(CC) --version)))
 ifneq (,$(findstring GOT,$(shell $(LD) --help)))

include/configs/M54418TWR.h

@@ -18,8 +18,6 @@
  * High Level Configuration Options
  * (easy to change)
  */
-#define CONFIG_MCF5441x	/* define processor family */
-#define CONFIG_M54418		/* define processor type */
 #define CONFIG_M54418TWR	/* M54418TWR board */
 
 #define CONFIG_MCFUART

include/configs/M54451EVB.h

@@ -18,8 +18,6 @@
  * High Level Configuration Options
  * (easy to change)
  */
-#define CONFIG_MCF5445x		/* define processor family */
-#define CONFIG_M54451		/* define processor type */
 #define CONFIG_M54451EVB	/* M54451EVB board */
 
 #define CONFIG_DISPLAY_BOARDINFO

include/configs/M54455EVB.h

@@ -18,8 +18,6 @@
  * High Level Configuration Options
  * (easy to change)
  */
-#define CONFIG_MCF5445x		/* define processor family */
-#define CONFIG_M54455		/* define processor type */
 #define CONFIG_M54455EVB	/* M54455EVB board */
 
 #define CONFIG_DISPLAY_BOARDINFO