diff options
Diffstat (limited to 'arch/m68k/Kconfig.cpu')
| -rw-r--r-- | arch/m68k/Kconfig.cpu | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 9dcf245c9cbf..c9a7e602d8a4 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -2,7 +2,7 @@ comment "Processor Type" choice - prompt "CPU family support" + prompt "CPU/machine family support" default M68KCLASSIC if MMU default COLDFIRE if !MMU help @@ -19,8 +19,9 @@ choice processor, select COLDFIRE. config M68KCLASSIC - bool "Classic M68K CPU family support" + bool "Classic M68K CPU/machine family support" select HAVE_ARCH_PFN_VALID + select M68020 if MMU && !(M68030 || M68040 || M68060) config COLDFIRE bool "Coldfire CPU family support" @@ -30,14 +31,25 @@ config COLDFIRE select GENERIC_CSUM select GPIOLIB select HAVE_LEGACY_CLK + select HAVE_PAGE_SIZE_8KB if !MMU -endchoice +config SUN3 + bool "Sun3 machine support" + depends on MMU + select HAVE_ARCH_PFN_VALID + select LEGACY_TIMER_TICK + select NO_DMA + select M68020 + help + This option enables support for the Sun 3 series of workstations + (3/50, 3/60, 3/1xx, 3/2xx systems). These use a classic 68020 CPU + but the custom memory management unit makes them incompatible with + all other classic m68k machines, including Sun 3x. -if M68KCLASSIC +endchoice config M68000 - def_bool y - depends on !MMU + def_bool M68KCLASSIC && !MMU select CPU_HAS_NO_BITFIELDS select CPU_HAS_NO_CAS select CPU_HAS_NO_MULDIV64 @@ -45,6 +57,7 @@ config M68000 select GENERIC_CSUM select CPU_NO_EFFICIENT_FFS select HAVE_ARCH_HASH + select HAVE_PAGE_SIZE_4KB select LEGACY_TIMER_TICK help The Freescale (was Motorola) 68000 CPU is the first generation of @@ -54,7 +67,7 @@ config M68000 a paging MMU. config M68020 - bool "68020 support" + bool "68020 support" if M68KCLASSIC depends on MMU select FPU select CPU_HAS_ADDRESS_SPACES @@ -64,9 +77,10 @@ config M68020 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the Sun 3, which provides its own version. +if M68KCLASSIC && MMU + config M68030 bool "68030 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help @@ -76,7 +90,6 @@ config M68030 config M68040 bool "68040 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help @@ -87,13 +100,14 @@ config M68040 config M68060 bool "68060 support" - depends on MMU && !MMU_SUN3 select FPU select CPU_HAS_ADDRESS_SPACES help If you anticipate running this kernel on a computer with a MC68060 processor, say Y. Otherwise, say N. +endif # M68KCLASSIC + config M68328 bool depends on !MMU @@ -115,8 +129,6 @@ config M68VZ328 help Motorola 68VZ328 processor support. -endif # M68KCLASSIC - if COLDFIRE choice @@ -323,7 +335,7 @@ comment "Processor Specific Options" config M68KFPU_EMU bool "Math emulation support" - depends on M68KCLASSIC && FPU + depends on (M68KCLASSIC || SUN3) && FPU help At some point in the future, this will cause floating-point math instructions to be emulated by the kernel on machines that lack a |