m68knommu: create config options for CPU classes

There are 3 families of CPU core types that we support in the m68knommu
architecture branch. They are

. traditional 68000
. CPU32 (a 68020 core derivative without MMU or bitfield instructions)
. ColdFire

It will be useful going forward to have a CONFIG_ option defined for
each type. We already have one for ColdFire (CONFIG_COLDFIRE), so add
for the other 2 families, CONFIG_M68000 and CONFIG_MCPU32.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

diff --git a/arch/m68k/Kconfig.nommu b/arch/m68k/Kconfig.nommu
index fc98f9b..b004dc1 100644 (file)
--- a/arch/m68k/Kconfig.nommu
+++ b/arch/m68k/Kconfig.nommu
@@ -14,6 +14,33 @@ config GENERIC_CLOCKEVENTS
        bool
        default n
 
+config M68000
+       bool
+       help
+         The Freescale (was Motorola) 68000 CPU is the first generation of
+         the well known M68K family of processors. The CPU core as well as
+         being available as a stand alone CPU was also used in many
+         System-On-Chip devices (eg 68328, 68302, etc). It does not contain
+         a paging MMU.
+
+config MCPU32
+       bool
+       help
+         The Freescale (was then Motorola) CPU32 is a CPU core that is
+         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
+       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 COLDFIRE_SW_A7
        bool
        default n
@@ -36,26 +63,31 @@ choice
 
 config M68328
        bool "MC68328"
+       select M68000
        help
          Motorola 68328 processor support.
 
 config M68EZ328
        bool "MC68EZ328"
+       select M68000
        help
          Motorola 68EX328 processor support.
 
 config M68VZ328
        bool "MC68VZ328"
+       select M68000
        help
          Motorola 68VZ328 processor support.
 
 config M68360
        bool "MC68360"
+       select MCPU32
        help
          Motorola 68360 processor support.
 
 config M5206
        bool "MCF5206"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_MBAR
        help
@@ -63,6 +95,7 @@ config M5206
 
 config M5206e
        bool "MCF5206e"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_MBAR
        help
@@ -70,6 +103,7 @@ config M5206e
 
 config M520x
        bool "MCF520x"
+       select COLDFIRE
        select GENERIC_CLOCKEVENTS
        select HAVE_CACHE_SPLIT
        help
@@ -77,6 +111,7 @@ config M520x
 
 config M523x
        bool "MCF523x"
+       select COLDFIRE
        select GENERIC_CLOCKEVENTS
        select HAVE_CACHE_SPLIT
        select HAVE_IPSBAR
@@ -85,6 +120,7 @@ config M523x
 
 config M5249
        bool "MCF5249"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_MBAR
        help
@@ -92,6 +128,7 @@ config M5249
 
 config M5271
        bool "MCF5271"
+       select COLDFIRE
        select HAVE_CACHE_SPLIT
        select HAVE_IPSBAR
        help
@@ -99,6 +136,7 @@ config M5271
 
 config M5272
        bool "MCF5272"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_MBAR
        help
@@ -106,6 +144,7 @@ config M5272
 
 config M5275
        bool "MCF5275"
+       select COLDFIRE
        select HAVE_CACHE_SPLIT
        select HAVE_IPSBAR
        help
@@ -113,6 +152,7 @@ config M5275
 
 config M528x
        bool "MCF528x"
+       select COLDFIRE
        select GENERIC_CLOCKEVENTS
        select HAVE_CACHE_SPLIT
        select HAVE_IPSBAR
@@ -121,6 +161,7 @@ config M528x
 
 config M5307
        bool "MCF5307"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_CACHE_CB
        select HAVE_MBAR
@@ -129,12 +170,14 @@ config M5307
 
 config M532x
        bool "MCF532x"
+       select COLDFIRE
        select HAVE_CACHE_CB
        help
          Freescale (Motorola) ColdFire 532x processor support.
 
 config M5407
        bool "MCF5407"
+       select COLDFIRE
        select COLDFIRE_SW_A7
        select HAVE_CACHE_CB
        select HAVE_MBAR
@@ -143,6 +186,7 @@ config M5407
 
 config M547x
        bool "MCF547x"
+       select COLDFIRE
        select HAVE_CACHE_CB
        select HAVE_MBAR
        help
@@ -150,6 +194,7 @@ config M547x
 
 config M548x
        bool "MCF548x"
+       select COLDFIRE
        select HAVE_CACHE_CB
        select HAVE_MBAR
        help
@@ -168,13 +213,6 @@ config M54xx
        depends on (M548x || M547x)
        default y
 
-config COLDFIRE
-       bool
-       depends on (M5206 || M5206e || M520x || M523x || M5249 || M527x || M5272 || M528x || M5307 || M532x || M5407 || M54xx)
-       select GENERIC_GPIO
-       select ARCH_REQUIRE_GPIOLIB
-       default y
-
 config CLOCK_SET
        bool "Enable setting the CPU clock frequency"
        default n