Commit ad8f955d authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Greg Ungerer
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m68k/Kconfig: Separate classic m68k and coldfire early 



While you can build multiplatform kernels for machines with classic
m68k processors, you cannot mix support for classic m68k and coldfire
processors. To avoid such hybrid kernels, introduce CONFIG_M68KCLASSIC
as an antipole for CONFIG_COLDFIRE, and make all specific processor
support depend on one of them.
All classic m68k machine support also needs to depend on this.

The defaults (CONFIG_M68KCLASSIC if MMU, CONFIG_COLDFIRE if !MMU) are
chosen such to make most of the existing configs build and work.

Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
parent fbe3364a

arch/m68k/Kconfig.cpu

+38 −28
Original line number Diff line number Diff line 
comment "Processor Type"



choice

	prompt "CPU family support"

	default M68KCLASSIC if MMU

	default COLDFIRE if !MMU

	help

	  The Freescale (was Motorola) M68K family of processors implements

	  the full 68000 processor instruction set.

	  The Freescale ColdFire family of processors is a modern derivitive

	  of the 68000 processor family. They are mainly targeted at embedded

	  applications, and are all System-On-Chip (SOC) devices, as opposed

	  to stand alone CPUs. They implement a subset of the original 68000

	  processor instruction set.

	  If you anticipate running this kernel on a computer with a classic

	  MC68xxx processor, select M68KCLASSIC.

	  If you anticipate running this kernel on a computer with a ColdFire

	  processor, select COLDFIRE.



config M68KCLASSIC

	bool "Classic M68K CPU family support"



config COLDFIRE

	bool "Coldfire CPU family support"

	select GENERIC_GPIO

	select ARCH_REQUIRE_GPIOLIB

	select CPU_HAS_NO_BITFIELDS

	select CPU_HAS_NO_MULDIV64

	select GENERIC_CSUM



endchoice



if M68KCLASSIC



config M68000

	bool

	select CPU_HAS_NO_BITFIELDS
@@ -20,20 +52,6 @@ config MCPU32 
	  based on the 68020 processor. For the most part it is used in

	  System-On-Chip parts, and does not contain a paging MMU.



config COLDFIRE

	bool

	select GENERIC_GPIO

	select ARCH_REQUIRE_GPIOLIB

	select CPU_HAS_NO_BITFIELDS

	select CPU_HAS_NO_MULDIV64

	select GENERIC_CSUM

	help

	  The Freescale ColdFire family of processors is a modern derivitive

	  of the 68000 processor family. They are mainly targeted at embedded

	  applications, and are all System-On-Chip (SOC) devices, as opposed

	  to stand alone CPUs. They implement a subset of the original 68000

	  processor instruction set.



config M68020

	bool "68020 support"

	depends on MMU
@@ -103,10 +121,13 @@ config M68360 
	help

	  Motorola 68360 processor support.



endif # M68KCLASSIC



if COLDFIRE



config M5206

	bool "MCF5206"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_MBAR

	help
@@ -115,7 +136,6 @@ config M5206 
config M5206e

	bool "MCF5206e"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_MBAR

	help
@@ -124,7 +144,6 @@ config M5206e 
config M520x

	bool "MCF520x"

	depends on !MMU

	select COLDFIRE

	select GENERIC_CLOCKEVENTS

	select HAVE_CACHE_SPLIT

	help
@@ -133,7 +152,6 @@ config M520x 
config M523x

	bool "MCF523x"

	depends on !MMU

	select COLDFIRE

	select GENERIC_CLOCKEVENTS

	select HAVE_CACHE_SPLIT

	select HAVE_IPSBAR
@@ -143,7 +161,6 @@ config M523x 
config M5249

	bool "MCF5249"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_MBAR

	help
@@ -155,7 +172,6 @@ config M527x 
config M5271

	bool "MCF5271"

	depends on !MMU

	select COLDFIRE

	select M527x

	select HAVE_CACHE_SPLIT

	select HAVE_IPSBAR
@@ -166,7 +182,6 @@ config M5271 
config M5272

	bool "MCF5272"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_MBAR

	help
@@ -175,7 +190,6 @@ config M5272 
config M5275

	bool "MCF5275"

	depends on !MMU

	select COLDFIRE

	select M527x

	select HAVE_CACHE_SPLIT

	select HAVE_IPSBAR
@@ -186,7 +200,6 @@ config M5275 
config M528x

	bool "MCF528x"

	depends on !MMU

	select COLDFIRE

	select GENERIC_CLOCKEVENTS

	select HAVE_CACHE_SPLIT

	select HAVE_IPSBAR
@@ -196,7 +209,6 @@ config M528x 
config M5307

	bool "MCF5307"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_CACHE_CB

	select HAVE_MBAR
@@ -206,7 +218,6 @@ config M5307 
config M532x

	bool "MCF532x"

	depends on !MMU

	select COLDFIRE

	select HAVE_CACHE_CB

	help

	  Freescale (Motorola) ColdFire 532x processor support.
@@ -214,7 +225,6 @@ config M532x 
config M5407

	bool "MCF5407"

	depends on !MMU

	select COLDFIRE

	select COLDFIRE_SW_A7

	select HAVE_CACHE_CB

	select HAVE_MBAR
@@ -227,7 +237,6 @@ config M54xx 
config M547x

	bool "MCF547x"

	depends on !MMU

	select COLDFIRE

	select M54xx

	select HAVE_CACHE_CB

	select HAVE_MBAR
@@ -237,13 +246,14 @@ config M547x 
config M548x

	bool "MCF548x"

	depends on !MMU

	select COLDFIRE

	select M54xx

	select HAVE_CACHE_CB

	select HAVE_MBAR

	help

	  Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support.



endif # COLDFIRE





comment "Processor Specific Options"

arch/m68k/Kconfig.machine

+4 −0
Original line number Diff line number Diff line 
comment "Machine Types"



if M68KCLASSIC



config AMIGA

	bool "Amiga support"

	depends on MMU
@@ -130,6 +132,8 @@ config SUN3 


	  If you don't want to compile a kernel exclusively for a Sun 3, say N.



endif # M68KCLASSIC



config PILOT

	bool

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