diff options
| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-12-26 20:32:02 +0100 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2011-12-30 10:20:49 +1000 |
| commit | ad8f955daf77d303f0ee08d2acab30d3886cbd2b (patch) | |
| tree | 325095c2c9411c3ca753be57e83ef31d4979d57b /arch/m68k/Kconfig.cpu | |
| parent | fbe3364ac4fa82caa585f98e4a525946d2cc21f4 (diff) | |
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: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/Kconfig.cpu')
| -rw-r--r-- | arch/m68k/Kconfig.cpu | 66 |
1 files changed, 38 insertions, 28 deletions
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 5ae1d63ef5e..f10a5d0f077 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -1,5 +1,37 @@ 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" |