From 9657a87205a367bddd802cbf439531697597fd8b Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Mon, 30 Jan 2012 11:58:21 +1000 Subject: m68k: make support for FPU hardware configurable The classic m68k code has always supported an FPU (although it may have been a software emulated one). The non-MMU m68k code has never supported FPU hardware. To help in merging common code create a configation setting that signifies if we are builing in FPU support or not. This switch, CONFIG_FPU, is set as per the current use cases. So it is always enabled if CONFIG_MMU is set, and disabled otherwise. With a little extra code it will be possible to disable it on the classic m68k platforms as well, and to enable it on non-MMU platforms that do have hardware FPU. Signed-off-by: Greg Ungerer Acked-by: Geert Uytterhoeven --- arch/m68k/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/m68k') diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 6f823dcc0d70..d318c606c888 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -7,6 +7,7 @@ config M68K select GENERIC_IRQ_SHOW select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS select GENERIC_CPU_DEVICES + select FPU if MMU config RWSEM_GENERIC_SPINLOCK bool @@ -64,6 +65,9 @@ config CPU_HAS_NO_MULDIV64 config CPU_HAS_ADDRESS_SPACES bool +config FPU + bool + config HZ int default 1000 if CLEOPATRA -- cgit v1.2.3-58-ga151