diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 62 |
1 files changed, 50 insertions, 12 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index d860b640a14..037664d496d 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -14,6 +14,11 @@ config 64BIT bool default y if PPC64 +config WORD_SIZE + int + default 64 if PPC64 + default 32 if !PPC64 + config PPC_MERGE def_bool y @@ -21,6 +26,18 @@ config MMU bool default y +config GENERIC_CMOS_UPDATE + def_bool y + +config GENERIC_TIME + def_bool y + +config GENERIC_TIME_VSYSCALL + def_bool y + +config GENERIC_CLOCKEVENTS + def_bool y + config GENERIC_HARDIRQS bool default y @@ -92,6 +109,9 @@ config ARCH_MAY_HAVE_PC_FDC config PPC_OF def_bool y +config OF + def_bool y + config PPC_UDBG_16550 bool default n @@ -153,6 +173,7 @@ config HIGHMEM bool "High memory support" depends on PPC32 +source kernel/time/Kconfig source kernel/Kconfig.hz source kernel/Kconfig.preempt source "fs/Kconfig.binfmt" @@ -177,17 +198,29 @@ config MATH_EMULATION unit, which will allow programs that use floating-point instructions to run. +config 8XX_MINIMAL_FPEMU + bool "Minimal math emulation for 8xx" + depends on 8xx && !MATH_EMULATION + help + Older arch/ppc kernels still emulated a few floating point + instructions such as load and store, even when full math + emulation is disabled. Say "Y" here if you want to preserve + this behavior. + + It is recommended that you build a soft-float userspace instead. + config IOMMU_VMERGE - bool "Enable IOMMU virtual merging (EXPERIMENTAL)" - depends on EXPERIMENTAL && PPC64 - default n + bool "Enable IOMMU virtual merging" + depends on PPC64 + default y help Cause IO segments sent to a device for DMA to be merged virtually by the IOMMU when they happen to have been allocated contiguously. This doesn't add pressure to the IOMMU allocator. However, some drivers don't support getting large merged segments coming back - from *_map_sg(). Say Y if you know the drivers you are using are - properly handling this case. + from *_map_sg(). + + Most drivers don't have this problem; it is safe to say Y here. config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" @@ -408,11 +441,6 @@ config PPC_INDIRECT_PCI default y if 40x || 44x default n -config PPC_INDIRECT_PCI_BE - bool - depends PPC_INDIRECT_PCI - default n - config EISA bool @@ -422,6 +450,10 @@ config SBUS config FSL_SOC bool +config FSL_PCI + bool + select PPC_INDIRECT_PCI + # Yes MCA RS/6000s exist but Linux-PPC does not currently support any config MCA bool @@ -463,7 +495,7 @@ config PCI_8260 config 8260_PCI9 bool "Enable workaround for MPC826x erratum PCI 9" - depends on PCI_8260 && !ADS8272 + depends on PCI_8260 && !8272 default y choice @@ -567,7 +599,8 @@ config TASK_SIZE_BOOL config TASK_SIZE hex "Size of user task space" if TASK_SIZE_BOOL - default "0x80000000" + default "0x80000000" if PPC_PREP || PPC_8xx + default "0xc0000000" config CONSISTENT_START_BOOL bool "Set custom consistent memory pool address" @@ -579,6 +612,7 @@ config CONSISTENT_START_BOOL config CONSISTENT_START hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL + default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) default "0xff100000" if NOT_COHERENT_CACHE config CONSISTENT_SIZE_BOOL @@ -660,3 +694,7 @@ config KEYS_COMPAT default y source "crypto/Kconfig" + +config PPC_CLOCK + bool + default n |