m68knommu: add support for the ColdFire 537x family of CPUs

The ColdFire 537x family is very similar internally to the ColdFire 532x
family. So with just a little extra configuration we can configure and
target them as well.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>

arch/m68k/Kconfig.cpu

@@ -235,6 +235,14 @@ config M532x
 	help
 	  Freescale (Motorola) ColdFire 532x processor support.
 
+config M537x
+	bool "MCF537x"
+	depends on !MMU
+	select M53xx
+	select HAVE_CACHE_CB
+	help
+	  Freescale ColdFire 537x processor support.
+
 config M5407
 	bool "MCF5407"
 	depends on !MMU

arch/m68k/Makefile

@@ -45,6 +45,7 @@ cpuflags-$(CONFIG_M5441x)	:= $(call cc-option,-mcpu=54455,-mcfv4e)
 cpuflags-$(CONFIG_M54xx)	:= $(call cc-option,-mcpu=5475,-m5200)
 cpuflags-$(CONFIG_M5407)	:= $(call cc-option,-mcpu=5407,-m5200)
 cpuflags-$(CONFIG_M532x)	:= $(call cc-option,-mcpu=532x,-m5307)
+cpuflags-$(CONFIG_M537x)	:= $(call cc-option,-mcpu=537x,-m5307)
 cpuflags-$(CONFIG_M5307)	:= $(call cc-option,-mcpu=5307,-m5200)
 cpuflags-$(CONFIG_M528x)	:= $(call cc-option,-mcpu=528x,-m5307)
 cpuflags-$(CONFIG_M5275)	:= $(call cc-option,-mcpu=5275,-m5307)