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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/Kconfig | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/Kconfig')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/Kconfig | 2343 |
1 files changed, 0 insertions, 2343 deletions
diff --git a/ANDROID_3.4.5/arch/arm/Kconfig b/ANDROID_3.4.5/arch/arm/Kconfig deleted file mode 100644 index dca45ca6..00000000 --- a/ANDROID_3.4.5/arch/arm/Kconfig +++ /dev/null @@ -1,2343 +0,0 @@ -config ARM - bool - default y - select HAVE_AOUT - select HAVE_DMA_API_DEBUG - select HAVE_IDE if PCI || ISA || PCMCIA - select HAVE_MEMBLOCK - select RTC_LIB - select SYS_SUPPORTS_APM_EMULATION - select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI) - select HAVE_OPROFILE if (HAVE_PERF_EVENTS) - select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL - select HAVE_ARCH_KGDB - select HAVE_KPROBES if !XIP_KERNEL - select HAVE_KRETPROBES if (HAVE_KPROBES) - select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) - select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) - select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) - select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) - select ARCH_BINFMT_ELF_RANDOMIZE_PIE - select HAVE_GENERIC_DMA_COHERENT - select HAVE_KERNEL_GZIP - select HAVE_KERNEL_LZO - select HAVE_KERNEL_LZMA - select HAVE_KERNEL_XZ - select HAVE_IRQ_WORK - select HAVE_PERF_EVENTS - select PERF_USE_VMALLOC - select HAVE_REGS_AND_STACK_ACCESS_API - select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)) - select HAVE_C_RECORDMCOUNT - select HAVE_GENERIC_HARDIRQS - select GENERIC_IRQ_SHOW - select CPU_PM if (SUSPEND || CPU_IDLE) - select GENERIC_PCI_IOMAP - select HAVE_BPF_JIT if NET - help - The ARM series is a line of low-power-consumption RISC chip designs - licensed by ARM Ltd and targeted at embedded applications and - handhelds such as the Compaq IPAQ. ARM-based PCs are no longer - manufactured, but legacy ARM-based PC hardware remains popular in - Europe. There is an ARM Linux project with a web page at - <http://www.arm.linux.org.uk/>. - -config ARM_HAS_SG_CHAIN - bool - -config HAVE_PWM - bool - -config MIGHT_HAVE_PCI - bool - -config SYS_SUPPORTS_APM_EMULATION - bool - -config GENERIC_GPIO - bool - -config ARCH_USES_GETTIMEOFFSET - bool - default n - -config GENERIC_CLOCKEVENTS - bool - -config GENERIC_CLOCKEVENTS_BROADCAST - bool - depends on GENERIC_CLOCKEVENTS - default y if SMP - -config KTIME_SCALAR - bool - default y - -config HAVE_TCM - bool - select GENERIC_ALLOCATOR - -config HAVE_PROC_CPU - bool - -config NO_IOPORT - bool - -config EISA - bool - ---help--- - The Extended Industry Standard Architecture (EISA) bus was - developed as an open alternative to the IBM MicroChannel bus. - - The EISA bus provided some of the features of the IBM MicroChannel - bus while maintaining backward compatibility with cards made for - the older ISA bus. The EISA bus saw limited use between 1988 and - 1995 when it was made obsolete by the PCI bus. - - Say Y here if you are building a kernel for an EISA-based machine. - - Otherwise, say N. - -config SBUS - bool - -config MCA - bool - help - MicroChannel Architecture is found in some IBM PS/2 machines and - laptops. It is a bus system similar to PCI or ISA. See - <file:Documentation/mca.txt> (and especially the web page given - there) before attempting to build an MCA bus kernel. - -config STACKTRACE_SUPPORT - bool - default y - -config HAVE_LATENCYTOP_SUPPORT - bool - depends on !SMP - default y - -config LOCKDEP_SUPPORT - bool - default y - -config TRACE_IRQFLAGS_SUPPORT - bool - default y - -config HARDIRQS_SW_RESEND - bool - default y - -config GENERIC_IRQ_PROBE - bool - default y - -config GENERIC_LOCKBREAK - bool - default y - depends on SMP && PREEMPT - -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - -config ARCH_HAS_ILOG2_U32 - bool - -config ARCH_HAS_ILOG2_U64 - bool - -config ARCH_HAS_CPUFREQ - bool - help - Internal node to signify that the ARCH has CPUFREQ support - and that the relevant menu configurations are displayed for - it. - -config ARCH_HAS_CPU_IDLE_WAIT - def_bool y - -config GENERIC_HWEIGHT - bool - default y - -config GENERIC_CALIBRATE_DELAY - bool - default y - -config ARCH_MAY_HAVE_PC_FDC - bool - -config ZONE_DMA - bool - -config NEED_DMA_MAP_STATE - def_bool y - -config ARCH_HAS_DMA_SET_COHERENT_MASK - bool - -config GENERIC_ISA_DMA - bool - -config FIQ - bool - -config NEED_RET_TO_USER - bool - -config ARCH_MTD_XIP - bool - -config VECTORS_BASE - hex - default 0xffff0000 if MMU || CPU_HIGH_VECTOR - default DRAM_BASE if REMAP_VECTORS_TO_RAM - default 0x00000000 - help - The base address of exception vectors. - -config ARM_PATCH_PHYS_VIRT - bool "Patch physical to virtual translations at runtime" if EMBEDDED - default y - depends on !XIP_KERNEL && MMU - depends on !ARCH_REALVIEW || !SPARSEMEM - help - Patch phys-to-virt and virt-to-phys translation functions at - boot and module load time according to the position of the - kernel in system memory. - - This can only be used with non-XIP MMU kernels where the base - of physical memory is at a 16MB boundary. - - Only disable this option if you know that you do not require - this feature (eg, building a kernel for a single machine) and - you need to shrink the kernel to the minimal size. - -config NEED_MACH_IO_H - bool - help - Select this when mach/io.h is required to provide special - definitions for this platform. The need for mach/io.h should - be avoided when possible. - -config NEED_MACH_MEMORY_H - bool - help - Select this when mach/memory.h is required to provide special - definitions for this platform. The need for mach/memory.h should - be avoided when possible. - -config PHYS_OFFSET - hex "Physical address of main memory" if MMU - depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H - default DRAM_BASE if !MMU - help - Please provide the physical address corresponding to the - location of main memory in your system. - -config GENERIC_BUG - def_bool y - depends on BUG - -source "init/Kconfig" - -source "kernel/Kconfig.freezer" - -menu "System Type" - -config MMU - bool "MMU-based Paged Memory Management Support" - default y - help - Select if you want MMU-based virtualised addressing space - support by paged memory management. If unsure, say 'Y'. - -# -# The "ARM system type" choice list is ordered alphabetically by option -# text. Please add new entries in the option alphabetic order. -# -choice - prompt "ARM system type" - default ARCH_WMT - -config ARCH_WMT - bool "WonderMedia Technology" - select NEED_MACH_IO_H - select ARCH_HAS_CPUFREQ - select GENERIC_CLOCKEVENTS - select MIGHT_HAVE_CACHE_L2X0 - select ARM_GIC - select HAVE_SMP - select ARCH_REQUIRE_GPIOLIB - select HAVE_PWM - select HAVE_CLK - select COMMON_CLK - select CLKDEV_LOOKUP - help - This enables support for systems based on a WonderMedia Technology system. - -config ARCH_INTEGRATOR - bool "ARM Ltd. Integrator family" - select ARM_AMBA - select ARCH_HAS_CPUFREQ - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select HAVE_TCM - select ICST - select GENERIC_CLOCKEVENTS - select PLAT_VERSATILE - select PLAT_VERSATILE_FPGA_IRQ - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - select SPARSE_IRQ - help - Support for ARM's Integrator platform. - -config ARCH_REALVIEW - bool "ARM Ltd. RealView family" - select ARM_AMBA - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select ICST - select GENERIC_CLOCKEVENTS - select ARCH_WANT_OPTIONAL_GPIOLIB - select PLAT_VERSATILE - select PLAT_VERSATILE_CLCD - select ARM_TIMER_SP804 - select GPIO_PL061 if GPIOLIB - select NEED_MACH_MEMORY_H - help - This enables support for ARM Ltd RealView boards. - -config ARCH_VERSATILE - bool "ARM Ltd. Versatile family" - select ARM_AMBA - select ARM_VIC - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select ICST - select GENERIC_CLOCKEVENTS - select ARCH_WANT_OPTIONAL_GPIOLIB - select PLAT_VERSATILE - select PLAT_VERSATILE_CLCD - select PLAT_VERSATILE_FPGA_IRQ - select ARM_TIMER_SP804 - help - This enables support for ARM Ltd Versatile board. - -config ARCH_VEXPRESS - bool "ARM Ltd. Versatile Express family" - select ARCH_WANT_OPTIONAL_GPIOLIB - select ARM_AMBA - select ARM_TIMER_SP804 - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select GENERIC_CLOCKEVENTS - select HAVE_CLK - select HAVE_PATA_PLATFORM - select ICST - select NO_IOPORT - select PLAT_VERSATILE - select PLAT_VERSATILE_CLCD - help - This enables support for the ARM Ltd Versatile Express boards. - -config ARCH_AT91 - bool "Atmel AT91" - select ARCH_REQUIRE_GPIOLIB - select HAVE_CLK - select CLKDEV_LOOKUP - select IRQ_DOMAIN - select NEED_MACH_IO_H if PCCARD - help - This enables support for systems based on the Atmel AT91RM9200, - AT91SAM9 processors. - -config ARCH_BCMRING - bool "Broadcom BCMRING" - depends on MMU - select CPU_V6 - select ARM_AMBA - select ARM_TIMER_SP804 - select CLKDEV_LOOKUP - select GENERIC_CLOCKEVENTS - select ARCH_WANT_OPTIONAL_GPIOLIB - help - Support for Broadcom's BCMRing platform. - -config ARCH_HIGHBANK - bool "Calxeda Highbank-based" - select ARCH_WANT_OPTIONAL_GPIOLIB - select ARM_AMBA - select ARM_GIC - select ARM_TIMER_SP804 - select CACHE_L2X0 - select CLKDEV_LOOKUP - select CPU_V7 - select GENERIC_CLOCKEVENTS - select HAVE_ARM_SCU - select HAVE_SMP - select SPARSE_IRQ - select USE_OF - help - Support for the Calxeda Highbank SoC based boards. - -config ARCH_CLPS711X - bool "Cirrus Logic CLPS711x/EP721x-based" - select CPU_ARM720T - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_MEMORY_H - help - Support for Cirrus Logic 711x/721x based boards. - -config ARCH_CNS3XXX - bool "Cavium Networks CNS3XXX family" - select CPU_V6K - select GENERIC_CLOCKEVENTS - select ARM_GIC - select MIGHT_HAVE_CACHE_L2X0 - select MIGHT_HAVE_PCI - select PCI_DOMAINS if PCI - help - Support for Cavium Networks CNS3XXX platform. - -config ARCH_GEMINI - bool "Cortina Systems Gemini" - select CPU_FA526 - select ARCH_REQUIRE_GPIOLIB - select ARCH_USES_GETTIMEOFFSET - help - Support for the Cortina Systems Gemini family SoCs - -config ARCH_PRIMA2 - bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform" - select CPU_V7 - select NO_IOPORT - select GENERIC_CLOCKEVENTS - select CLKDEV_LOOKUP - select GENERIC_IRQ_CHIP - select MIGHT_HAVE_CACHE_L2X0 - select USE_OF - select ZONE_DMA - help - Support for CSR SiRFSoC ARM Cortex A9 Platform - -config ARCH_EBSA110 - bool "EBSA-110" - select CPU_SA110 - select ISA - select NO_IOPORT - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - help - This is an evaluation board for the StrongARM processor available - from Digital. It has limited hardware on-board, including an - Ethernet interface, two PCMCIA sockets, two serial ports and a - parallel port. - -config ARCH_EP93XX - bool "EP93xx-based" - select CPU_ARM920T - select ARM_AMBA - select ARM_VIC - select CLKDEV_LOOKUP - select ARCH_REQUIRE_GPIOLIB - select ARCH_HAS_HOLES_MEMORYMODEL - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_MEMORY_H - help - This enables support for the Cirrus EP93xx series of CPUs. - -config ARCH_FOOTBRIDGE - bool "FootBridge" - select CPU_SA110 - select FOOTBRIDGE - select GENERIC_CLOCKEVENTS - select HAVE_IDE - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - help - Support for systems based on the DC21285 companion chip - ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. - -config ARCH_MXC - bool "Freescale MXC/iMX-based" - select GENERIC_CLOCKEVENTS - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select GENERIC_IRQ_CHIP - select MULTI_IRQ_HANDLER - help - Support for Freescale MXC/iMX-based family of processors - -config ARCH_MXS - bool "Freescale MXS-based" - select GENERIC_CLOCKEVENTS - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select HAVE_CLK_PREPARE - help - Support for Freescale MXS-based family of processors - -config ARCH_NETX - bool "Hilscher NetX based" - select CLKSRC_MMIO - select CPU_ARM926T - select ARM_VIC - select GENERIC_CLOCKEVENTS - help - This enables support for systems based on the Hilscher NetX Soc - -config ARCH_H720X - bool "Hynix HMS720x-based" - select CPU_ARM720T - select ISA_DMA_API - select ARCH_USES_GETTIMEOFFSET - help - This enables support for systems based on the Hynix HMS720x - -config ARCH_IOP13XX - bool "IOP13xx-based" - depends on MMU - select CPU_XSC3 - select PLAT_IOP - select PCI - select ARCH_SUPPORTS_MSI - select VMSPLIT_1G - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - select NEED_RET_TO_USER - help - Support for Intel's IOP13XX (XScale) family of processors. - -config ARCH_IOP32X - bool "IOP32x-based" - depends on MMU - select CPU_XSCALE - select NEED_MACH_IO_H - select NEED_RET_TO_USER - select PLAT_IOP - select PCI - select ARCH_REQUIRE_GPIOLIB - help - Support for Intel's 80219 and IOP32X (XScale) family of - processors. - -config ARCH_IOP33X - bool "IOP33x-based" - depends on MMU - select CPU_XSCALE - select NEED_MACH_IO_H - select NEED_RET_TO_USER - select PLAT_IOP - select PCI - select ARCH_REQUIRE_GPIOLIB - help - Support for Intel's IOP33X (XScale) family of processors. - -config ARCH_IXP23XX - bool "IXP23XX-based" - depends on MMU - select CPU_XSC3 - select PCI - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - help - Support for Intel's IXP23xx (XScale) family of processors. - -config ARCH_IXP2000 - bool "IXP2400/2800-based" - depends on MMU - select CPU_XSCALE - select PCI - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - help - Support for Intel's IXP2400/2800 (XScale) family of processors. - -config ARCH_IXP4XX - bool "IXP4xx-based" - depends on MMU - select ARCH_HAS_DMA_SET_COHERENT_MASK - select CLKSRC_MMIO - select CPU_XSCALE - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select MIGHT_HAVE_PCI - select NEED_MACH_IO_H - select DMABOUNCE if PCI - help - Support for Intel's IXP4XX (XScale) family of processors. - -config ARCH_DOVE - bool "Marvell Dove" - select CPU_V7 - select PCI - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H - select PLAT_ORION - help - Support for the Marvell Dove SoC 88AP510 - -config ARCH_KIRKWOOD - bool "Marvell Kirkwood" - select CPU_FEROCEON - select PCI - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H - select PLAT_ORION - help - Support for the following Marvell Kirkwood series SoCs: - 88F6180, 88F6192 and 88F6281. - -config ARCH_LPC32XX - bool "NXP LPC32XX" - select CLKSRC_MMIO - select CPU_ARM926T - select ARCH_REQUIRE_GPIOLIB - select HAVE_IDE - select ARM_AMBA - select USB_ARCH_HAS_OHCI - select CLKDEV_LOOKUP - select GENERIC_CLOCKEVENTS - help - Support for the NXP LPC32XX family of processors - -config ARCH_MV78XX0 - bool "Marvell MV78xx0" - select CPU_FEROCEON - select PCI - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select NEED_MACH_IO_H - select PLAT_ORION - help - Support for the following Marvell MV78xx0 series SoCs: - MV781x0, MV782x0. - -config ARCH_ORION5X - bool "Marvell Orion" - depends on MMU - select CPU_FEROCEON - select PCI - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select PLAT_ORION - help - Support for the following Marvell Orion 5x series SoCs: - Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), - Orion-2 (5281), Orion-1-90 (6183). - -config ARCH_MMP - bool "Marvell PXA168/910/MMP2" - depends on MMU - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - select GENERIC_CLOCKEVENTS - select GPIO_PXA - select TICK_ONESHOT - select PLAT_PXA - select SPARSE_IRQ - select GENERIC_ALLOCATOR - help - Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. - -config ARCH_KS8695 - bool "Micrel/Kendin KS8695" - select CPU_ARM922T - select ARCH_REQUIRE_GPIOLIB - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_MEMORY_H - help - Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based - System-on-Chip devices. - -config ARCH_W90X900 - bool "Nuvoton W90X900 CPU" - select CPU_ARM926T - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select GENERIC_CLOCKEVENTS - help - Support for Nuvoton (Winbond logic dept.) ARM9 processor, - At present, the w90x900 has been renamed nuc900, regarding - the ARM series product line, you can login the following - link address to know more. - - <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ - ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> - -config ARCH_TEGRA - bool "NVIDIA Tegra" - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select GENERIC_CLOCKEVENTS - select GENERIC_GPIO - select HAVE_CLK - select HAVE_SMP - select MIGHT_HAVE_CACHE_L2X0 - select NEED_MACH_IO_H if PCI - select ARCH_HAS_CPUFREQ - help - This enables support for NVIDIA Tegra based systems (Tegra APX, - Tegra 6xx and Tegra 2 series). - -config ARCH_PICOXCELL - bool "Picochip picoXcell" - select ARCH_REQUIRE_GPIOLIB - select ARM_PATCH_PHYS_VIRT - select ARM_VIC - select CPU_V6K - select DW_APB_TIMER - select GENERIC_CLOCKEVENTS - select GENERIC_GPIO - select HAVE_TCM - select NO_IOPORT - select SPARSE_IRQ - select USE_OF - help - This enables support for systems based on the Picochip picoXcell - family of Femtocell devices. The picoxcell support requires device tree - for all boards. - -config ARCH_PNX4008 - bool "Philips Nexperia PNX4008 Mobile" - select CPU_ARM926T - select CLKDEV_LOOKUP - select ARCH_USES_GETTIMEOFFSET - help - This enables support for Philips PNX4008 mobile platform. - -config ARCH_PXA - bool "PXA2xx/PXA3xx-based" - depends on MMU - select ARCH_MTD_XIP - select ARCH_HAS_CPUFREQ - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select ARCH_REQUIRE_GPIOLIB - select GENERIC_CLOCKEVENTS - select GPIO_PXA - select TICK_ONESHOT - select PLAT_PXA - select SPARSE_IRQ - select AUTO_ZRELADDR - select MULTI_IRQ_HANDLER - select ARM_CPU_SUSPEND if PM - select HAVE_IDE - help - Support for Intel/Marvell's PXA2xx/PXA3xx processor line. - -config ARCH_MSM - bool "Qualcomm MSM" - select HAVE_CLK - select GENERIC_CLOCKEVENTS - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - help - Support for Qualcomm MSM/QSD based systems. This runs on the - apps processor of the MSM/QSD and depends on a shared memory - interface to the modem processor which runs the baseband - stack and controls some vital subsystems - (clock and power control, etc). - -config ARCH_SHMOBILE - bool "Renesas SH-Mobile / R-Mobile" - select HAVE_CLK - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select HAVE_SMP - select GENERIC_CLOCKEVENTS - select MIGHT_HAVE_CACHE_L2X0 - select NO_IOPORT - select SPARSE_IRQ - select MULTI_IRQ_HANDLER - select PM_GENERIC_DOMAINS if PM - select NEED_MACH_MEMORY_H - help - Support for Renesas's SH-Mobile and R-Mobile ARM platforms. - -config ARCH_RPC - bool "RiscPC" - select ARCH_ACORN - select FIQ - select ARCH_MAY_HAVE_PC_FDC - select HAVE_PATA_PLATFORM - select ISA_DMA_API - select NO_IOPORT - select ARCH_SPARSEMEM_ENABLE - select ARCH_USES_GETTIMEOFFSET - select HAVE_IDE - select NEED_MACH_IO_H - select NEED_MACH_MEMORY_H - help - On the Acorn Risc-PC, Linux can support the internal IDE disk and - CD-ROM interface, serial and parallel port, and the floppy drive. - -config ARCH_SA1100 - bool "SA1100-based" - select CLKSRC_MMIO - select CPU_SA1100 - select ISA - select ARCH_SPARSEMEM_ENABLE - select ARCH_MTD_XIP - select ARCH_HAS_CPUFREQ - select CPU_FREQ - select GENERIC_CLOCKEVENTS - select CLKDEV_LOOKUP - select TICK_ONESHOT - select ARCH_REQUIRE_GPIOLIB - select HAVE_IDE - select NEED_MACH_MEMORY_H - select SPARSE_IRQ - help - Support for StrongARM 11x0 based boards. - -config ARCH_S3C24XX - bool "Samsung S3C24XX SoCs" - select GENERIC_GPIO - select ARCH_HAS_CPUFREQ - select HAVE_CLK - select CLKDEV_LOOKUP - select ARCH_USES_GETTIMEOFFSET - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C_RTC if RTC_CLASS - select HAVE_S3C2410_WATCHDOG if WATCHDOG - select NEED_MACH_IO_H - help - Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443 - and S3C2450 SoCs based systems, such as the Simtec Electronics BAST - (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the - Samsung SMDK2410 development board (and derivatives). - -config ARCH_S3C64XX - bool "Samsung S3C64XX" - select PLAT_SAMSUNG - select CPU_V6 - select ARM_VIC - select HAVE_CLK - select HAVE_TCM - select CLKDEV_LOOKUP - select NO_IOPORT - select ARCH_USES_GETTIMEOFFSET - select ARCH_HAS_CPUFREQ - select ARCH_REQUIRE_GPIOLIB - select SAMSUNG_CLKSRC - select SAMSUNG_IRQ_VIC_TIMER - select S3C_GPIO_TRACK - select S3C_DEV_NAND - select USB_ARCH_HAS_OHCI - select SAMSUNG_GPIOLIB_4BIT - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C2410_WATCHDOG if WATCHDOG - help - Samsung S3C64XX series based systems - -config ARCH_S5P64X0 - bool "Samsung S5P6440 S5P6450" - select CPU_V6 - select GENERIC_GPIO - select HAVE_CLK - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select HAVE_S3C2410_WATCHDOG if WATCHDOG - select GENERIC_CLOCKEVENTS - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C_RTC if RTC_CLASS - help - Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440, - SMDK6450. - -config ARCH_S5PC100 - bool "Samsung S5PC100" - select GENERIC_GPIO - select HAVE_CLK - select CLKDEV_LOOKUP - select CPU_V7 - select ARCH_USES_GETTIMEOFFSET - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C_RTC if RTC_CLASS - select HAVE_S3C2410_WATCHDOG if WATCHDOG - help - Samsung S5PC100 series based systems - -config ARCH_S5PV210 - bool "Samsung S5PV210/S5PC110" - select CPU_V7 - select ARCH_SPARSEMEM_ENABLE - select ARCH_HAS_HOLES_MEMORYMODEL - select GENERIC_GPIO - select HAVE_CLK - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select ARCH_HAS_CPUFREQ - select GENERIC_CLOCKEVENTS - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C_RTC if RTC_CLASS - select HAVE_S3C2410_WATCHDOG if WATCHDOG - select NEED_MACH_MEMORY_H - help - Samsung S5PV210/S5PC110 series based systems - -config ARCH_EXYNOS - bool "SAMSUNG EXYNOS" - select CPU_V7 - select ARCH_SPARSEMEM_ENABLE - select ARCH_HAS_HOLES_MEMORYMODEL - select GENERIC_GPIO - select HAVE_CLK - select CLKDEV_LOOKUP - select ARCH_HAS_CPUFREQ - select GENERIC_CLOCKEVENTS - select HAVE_S3C_RTC if RTC_CLASS - select HAVE_S3C2410_I2C if I2C - select HAVE_S3C2410_WATCHDOG if WATCHDOG - select NEED_MACH_MEMORY_H - help - Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5) - -config ARCH_SHARK - bool "Shark" - select CPU_SA110 - select ISA - select ISA_DMA - select ZONE_DMA - select PCI - select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_MEMORY_H - select NEED_MACH_IO_H - help - Support for the StrongARM based Digital DNARD machine, also known - as "Shark" (<http://www.shark-linux.de/shark.html>). - -config ARCH_U300 - bool "ST-Ericsson U300 Series" - depends on MMU - select CLKSRC_MMIO - select CPU_ARM926T - select HAVE_TCM - select ARM_AMBA - select ARM_PATCH_PHYS_VIRT - select ARM_VIC - select GENERIC_CLOCKEVENTS - select CLKDEV_LOOKUP - select HAVE_MACH_CLKDEV - select GENERIC_GPIO - select ARCH_REQUIRE_GPIOLIB - help - Support for ST-Ericsson U300 series mobile platforms. - -config ARCH_U8500 - bool "ST-Ericsson U8500 Series" - depends on MMU - select CPU_V7 - select ARM_AMBA - select GENERIC_CLOCKEVENTS - select CLKDEV_LOOKUP - select ARCH_REQUIRE_GPIOLIB - select ARCH_HAS_CPUFREQ - select HAVE_SMP - select MIGHT_HAVE_CACHE_L2X0 - help - Support for ST-Ericsson's Ux500 architecture - -config ARCH_NOMADIK - bool "STMicroelectronics Nomadik" - select ARM_AMBA - select ARM_VIC - select CPU_ARM926T - select CLKDEV_LOOKUP - select GENERIC_CLOCKEVENTS - select MIGHT_HAVE_CACHE_L2X0 - select ARCH_REQUIRE_GPIOLIB - help - Support for the Nomadik platform by ST-Ericsson - -config ARCH_DAVINCI - bool "TI DaVinci" - select GENERIC_CLOCKEVENTS - select ARCH_REQUIRE_GPIOLIB - select ZONE_DMA - select HAVE_IDE - select CLKDEV_LOOKUP - select GENERIC_ALLOCATOR - select GENERIC_IRQ_CHIP - select ARCH_HAS_HOLES_MEMORYMODEL - help - Support for TI's DaVinci platform. - -config ARCH_OMAP - bool "TI OMAP" - select HAVE_CLK - select ARCH_REQUIRE_GPIOLIB - select ARCH_HAS_CPUFREQ - select CLKSRC_MMIO - select GENERIC_CLOCKEVENTS - select ARCH_HAS_HOLES_MEMORYMODEL - help - Support for TI's OMAP platform (OMAP1/2/3/4). - -config PLAT_SPEAR - bool "ST SPEAr" - select ARM_AMBA - select ARCH_REQUIRE_GPIOLIB - select CLKDEV_LOOKUP - select CLKSRC_MMIO - select GENERIC_CLOCKEVENTS - select HAVE_CLK - help - Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). - -config ARCH_VT8500 - bool "VIA/WonderMedia 85xx" - select CPU_ARM926T - select GENERIC_GPIO - select ARCH_HAS_CPUFREQ - select GENERIC_CLOCKEVENTS - select ARCH_REQUIRE_GPIOLIB - select HAVE_PWM - help - Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip. - -config ARCH_ZYNQ - bool "Xilinx Zynq ARM Cortex A9 Platform" - select CPU_V7 - select GENERIC_CLOCKEVENTS - select CLKDEV_LOOKUP - select ARM_GIC - select ARM_AMBA - select ICST - select MIGHT_HAVE_CACHE_L2X0 - select USE_OF - help - Support for Xilinx Zynq ARM Cortex A9 Platform -endchoice - -# -# This is sorted alphabetically by mach-* pathname. However, plat-* -# Kconfigs may be included either alphabetically (according to the -# plat- suffix) or along side the corresponding mach-* source. -# -source "arch/arm/mach-wmt/Kconfig" - -source "arch/arm/mach-at91/Kconfig" - -source "arch/arm/mach-bcmring/Kconfig" - -source "arch/arm/mach-clps711x/Kconfig" - -source "arch/arm/mach-cns3xxx/Kconfig" - -source "arch/arm/mach-davinci/Kconfig" - -source "arch/arm/mach-dove/Kconfig" - -source "arch/arm/mach-ep93xx/Kconfig" - -source "arch/arm/mach-footbridge/Kconfig" - -source "arch/arm/mach-gemini/Kconfig" - -source "arch/arm/mach-h720x/Kconfig" - -source "arch/arm/mach-integrator/Kconfig" - -source "arch/arm/mach-iop32x/Kconfig" - -source "arch/arm/mach-iop33x/Kconfig" - -source "arch/arm/mach-iop13xx/Kconfig" - -source "arch/arm/mach-ixp4xx/Kconfig" - -source "arch/arm/mach-ixp2000/Kconfig" - -source "arch/arm/mach-ixp23xx/Kconfig" - -source "arch/arm/mach-kirkwood/Kconfig" - -source "arch/arm/mach-ks8695/Kconfig" - -source "arch/arm/mach-lpc32xx/Kconfig" - -source "arch/arm/mach-msm/Kconfig" - -source "arch/arm/mach-mv78xx0/Kconfig" - -source "arch/arm/plat-mxc/Kconfig" - -source "arch/arm/mach-mxs/Kconfig" - -source "arch/arm/mach-netx/Kconfig" - -source "arch/arm/mach-nomadik/Kconfig" -source "arch/arm/plat-nomadik/Kconfig" - -source "arch/arm/plat-omap/Kconfig" - -source "arch/arm/mach-omap1/Kconfig" - -source "arch/arm/mach-omap2/Kconfig" - -source "arch/arm/mach-orion5x/Kconfig" - -source "arch/arm/mach-pxa/Kconfig" -source "arch/arm/plat-pxa/Kconfig" - -source "arch/arm/mach-mmp/Kconfig" - -source "arch/arm/mach-realview/Kconfig" - -source "arch/arm/mach-sa1100/Kconfig" - -source "arch/arm/plat-samsung/Kconfig" -source "arch/arm/plat-s3c24xx/Kconfig" -source "arch/arm/plat-s5p/Kconfig" - -source "arch/arm/plat-spear/Kconfig" - -source "arch/arm/mach-s3c24xx/Kconfig" -if ARCH_S3C24XX -source "arch/arm/mach-s3c2412/Kconfig" -source "arch/arm/mach-s3c2440/Kconfig" -endif - -if ARCH_S3C64XX -source "arch/arm/mach-s3c64xx/Kconfig" -endif - -source "arch/arm/mach-s5p64x0/Kconfig" - -source "arch/arm/mach-s5pc100/Kconfig" - -source "arch/arm/mach-s5pv210/Kconfig" - -source "arch/arm/mach-exynos/Kconfig" - -source "arch/arm/mach-shmobile/Kconfig" - -source "arch/arm/mach-tegra/Kconfig" - -source "arch/arm/mach-u300/Kconfig" - -source "arch/arm/mach-ux500/Kconfig" - -source "arch/arm/mach-versatile/Kconfig" - -source "arch/arm/mach-vexpress/Kconfig" -source "arch/arm/plat-versatile/Kconfig" - -source "arch/arm/mach-vt8500/Kconfig" - -source "arch/arm/mach-w90x900/Kconfig" - -# Definitions to make life easier -config ARCH_ACORN - bool - -config PLAT_IOP - bool - select GENERIC_CLOCKEVENTS - -config PLAT_ORION - bool - select CLKSRC_MMIO - select GENERIC_IRQ_CHIP - -config PLAT_PXA - bool - -config PLAT_VERSATILE - bool - -config ARM_TIMER_SP804 - bool - select CLKSRC_MMIO - select HAVE_SCHED_CLOCK - -source arch/arm/mm/Kconfig - -config ARM_NR_BANKS - int - default 16 if ARCH_EP93XX - default 8 - -config IWMMXT - bool "Enable iWMMXt support" - depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 - default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP - help - Enable support for iWMMXt context switching at run time if - running on a CPU that supports it. - -config XSCALE_PMU - bool - depends on CPU_XSCALE - default y - -config CPU_HAS_PMU - depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \ - (!ARCH_OMAP3 || OMAP3_EMU) - default y - bool - -config MULTI_IRQ_HANDLER - bool - help - Allow each machine to specify it's own IRQ handler at run time. - -if !MMU -source "arch/arm/Kconfig-nommu" -endif - -config ARM_ERRATA_326103 - bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory" - depends on CPU_V6 - help - Executing a SWP instruction to read-only memory does not set bit 11 - of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to - treat the access as a read, preventing a COW from occurring and - causing the faulting task to livelock. - -config ARM_ERRATA_411920 - bool "ARM errata: Invalidation of the Instruction Cache operation can fail" - depends on CPU_V6 || CPU_V6K - help - Invalidation of the Instruction Cache operation can - fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. - It does not affect the MPCore. This option enables the ARM Ltd. - recommended workaround. - -config ARM_ERRATA_430973 - bool "ARM errata: Stale prediction on replaced interworking branch" - depends on CPU_V7 - help - This option enables the workaround for the 430973 Cortex-A8 - (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb - interworking branch is replaced with another code sequence at the - same virtual address, whether due to self-modifying code or virtual - to physical address re-mapping, Cortex-A8 does not recover from the - stale interworking branch prediction. This results in Cortex-A8 - executing the new code sequence in the incorrect ARM or Thumb state. - The workaround enables the BTB/BTAC operations by setting ACTLR.IBE - and also flushes the branch target cache at every context switch. - Note that setting specific bits in the ACTLR register may not be - available in non-secure mode. - -config ARM_ERRATA_458693 - bool "ARM errata: Processor deadlock when a false hazard is created" - depends on CPU_V7 - help - This option enables the workaround for the 458693 Cortex-A8 (r2p0) - erratum. For very specific sequences of memory operations, it is - possible for a hazard condition intended for a cache line to instead - be incorrectly associated with a different cache line. This false - hazard might then cause a processor deadlock. The workaround enables - the L1 caching of the NEON accesses and disables the PLD instruction - in the ACTLR register. Note that setting specific bits in the ACTLR - register may not be available in non-secure mode. - -config ARM_ERRATA_460075 - bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" - depends on CPU_V7 - help - This option enables the workaround for the 460075 Cortex-A8 (r2p0) - erratum. Any asynchronous access to the L2 cache may encounter a - situation in which recent store transactions to the L2 cache are lost - and overwritten with stale memory contents from external memory. The - workaround disables the write-allocate mode for the L2 cache via the - ACTLR register. Note that setting specific bits in the ACTLR register - may not be available in non-secure mode. - -config ARM_ERRATA_742230 - bool "ARM errata: DMB operation may be faulty" - depends on CPU_V7 && SMP - help - This option enables the workaround for the 742230 Cortex-A9 - (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction - between two write operations may not ensure the correct visibility - ordering of the two writes. This workaround sets a specific bit in - the diagnostic register of the Cortex-A9 which causes the DMB - instruction to behave as a DSB, ensuring the correct behaviour of - the two writes. - -config ARM_ERRATA_742231 - bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption" - depends on CPU_V7 && SMP - help - This option enables the workaround for the 742231 Cortex-A9 - (r2p0..r2p2) erratum. Under certain conditions, specific to the - Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode, - accessing some data located in the same cache line, may get corrupted - data due to bad handling of the address hazard when the line gets - replaced from one of the CPUs at the same time as another CPU is - accessing it. This workaround sets specific bits in the diagnostic - register of the Cortex-A9 which reduces the linefill issuing - capabilities of the processor. - -config PL310_ERRATA_588369 - bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines" - depends on CACHE_L2X0 - help - The PL310 L2 cache controller implements three types of Clean & - Invalidate maintenance operations: by Physical Address - (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). - They are architecturally defined to behave as the execution of a - clean operation followed immediately by an invalidate operation, - both performing to the same memory location. This functionality - is not correctly implemented in PL310 as clean lines are not - invalidated as a result of these operations. - -config ARM_ERRATA_720789 - bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" - depends on CPU_V7 - help - This option enables the workaround for the 720789 Cortex-A9 (prior to - r2p0) erratum. A faulty ASID can be sent to the other CPUs for the - broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS. - As a consequence of this erratum, some TLB entries which should be - invalidated are not, resulting in an incoherency in the system page - tables. The workaround changes the TLB flushing routines to invalidate - entries regardless of the ASID. - -config PL310_ERRATA_727915 - bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption" - depends on CACHE_L2X0 - help - PL310 implements the Clean & Invalidate by Way L2 cache maintenance - operation (offset 0x7FC). This operation runs in background so that - PL310 can handle normal accesses while it is in progress. Under very - rare circumstances, due to this erratum, write data can be lost when - PL310 treats a cacheable write transaction during a Clean & - Invalidate by Way operation. - -config ARM_ERRATA_743622 - bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption" - depends on CPU_V7 - help - This option enables the workaround for the 743622 Cortex-A9 - (r2p*) erratum. Under very rare conditions, a faulty - optimisation in the Cortex-A9 Store Buffer may lead to data - corruption. This workaround sets a specific bit in the diagnostic - register of the Cortex-A9 which disables the Store Buffer - optimisation, preventing the defect from occurring. This has no - visible impact on the overall performance or power consumption of the - processor. - -config ARM_ERRATA_751472 - bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation" - depends on CPU_V7 - help - This option enables the workaround for the 751472 Cortex-A9 (prior - to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the - completion of a following broadcasted operation if the second - operation is received by a CPU before the ICIALLUIS has completed, - potentially leading to corrupted entries in the cache or TLB. - -config PL310_ERRATA_753970 - bool "PL310 errata: cache sync operation may be faulty" - depends on CACHE_PL310 - help - This option enables the workaround for the 753970 PL310 (r3p0) erratum. - - Under some condition the effect of cache sync operation on - the store buffer still remains when the operation completes. - This means that the store buffer is always asked to drain and - this prevents it from merging any further writes. The workaround - is to replace the normal offset of cache sync operation (0x730) - by another offset targeting an unmapped PL310 register 0x740. - This has the same effect as the cache sync operation: store buffer - drain and waiting for all buffers empty. - -config ARM_ERRATA_754322 - bool "ARM errata: possible faulty MMU translations following an ASID switch" - depends on CPU_V7 - help - This option enables the workaround for the 754322 Cortex-A9 (r2p*, - r3p*) erratum. A speculative memory access may cause a page table walk - which starts prior to an ASID switch but completes afterwards. This - can populate the micro-TLB with a stale entry which may be hit with - the new ASID. This workaround places two dsb instructions in the mm - switching code so that no page table walks can cross the ASID switch. - -config ARM_ERRATA_754327 - bool "ARM errata: no automatic Store Buffer drain" - depends on CPU_V7 && SMP - help - This option enables the workaround for the 754327 Cortex-A9 (prior to - r2p0) erratum. The Store Buffer does not have any automatic draining - mechanism and therefore a livelock may occur if an external agent - continuously polls a memory location waiting to observe an update. - This workaround defines cpu_relax() as smp_mb(), preventing correctly - written polling loops from denying visibility of updates to memory. - -config ARM_ERRATA_364296 - bool "ARM errata: Possible cache data corruption with hit-under-miss enabled" - depends on CPU_V6 && !SMP - help - This options enables the workaround for the 364296 ARM1136 - r0p2 erratum (possible cache data corruption with - hit-under-miss enabled). It sets the undocumented bit 31 in - the auxiliary control register and the FI bit in the control - register, thus disabling hit-under-miss without putting the - processor into full low interrupt latency mode. ARM11MPCore - is not affected. - -config ARM_ERRATA_764369 - bool "ARM errata: Data cache line maintenance operation by MVA may not succeed" - depends on CPU_V7 && SMP - help - This option enables the workaround for erratum 764369 - affecting Cortex-A9 MPCore with two or more processors (all - current revisions). Under certain timing circumstances, a data - cache line maintenance operation by MVA targeting an Inner - Shareable memory region may fail to proceed up to either the - Point of Coherency or to the Point of Unification of the - system. This workaround adds a DSB instruction before the - relevant cache maintenance functions and sets a specific bit - in the diagnostic control register of the SCU. - -config PL310_ERRATA_769419 - bool "PL310 errata: no automatic Store Buffer drain" - depends on CACHE_L2X0 - help - On revisions of the PL310 prior to r3p2, the Store Buffer does - not automatically drain. This can cause normal, non-cacheable - writes to be retained when the memory system is idle, leading - to suboptimal I/O performance for drivers using coherent DMA. - This option adds a write barrier to the cpu_idle loop so that, - on systems with an outer cache, the store buffer is drained - explicitly. - -endmenu - -source "arch/arm/common/Kconfig" - -menu "Bus support" - -config ARM_AMBA - bool - -config ISA - bool - help - Find out whether you have ISA slots on your motherboard. ISA is the - name of a bus system, i.e. the way the CPU talks to the other stuff - inside your box. Other bus systems are PCI, EISA, MicroChannel - (MCA) or VESA. ISA is an older system, now being displaced by PCI; - newer boards don't support it. If you have ISA, say Y, otherwise N. - -# Select ISA DMA controller support -config ISA_DMA - bool - select ISA_DMA_API - -# Select ISA DMA interface -config ISA_DMA_API - bool - -config PCI - bool "PCI support" if ARCH_WMT || MIGHT_HAVE_PCI - help - Find out whether you have a PCI motherboard. PCI is the name of a - bus system, i.e. the way the CPU talks to the other stuff inside - your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or - VESA. If you have PCI, say Y, otherwise N. - -config PCI_DOMAINS - bool - depends on PCI - -config PCI_NANOENGINE - bool "BSE nanoEngine PCI support" - depends on SA1100_NANOENGINE - help - Enable PCI on the BSE nanoEngine board. - -config PCI_SYSCALL - def_bool PCI - -# Select the host bridge type -config PCI_HOST_VIA82C505 - bool - depends on PCI && ARCH_SHARK - default y - -config PCI_HOST_ITE8152 - bool - depends on PCI && MACH_ARMCORE - default y - select DMABOUNCE - -source "drivers/pci/Kconfig" - -source "drivers/pcmcia/Kconfig" - -endmenu - -menu "Kernel Features" - -source "kernel/time/Kconfig" - -config HAVE_SMP - bool - help - This option should be selected by machines which have an SMP- - capable CPU. - - The only effect of this option is to make the SMP-related - options available to the user for configuration. - -config SMP - bool "Symmetric Multi-Processing" - depends on CPU_V6K || CPU_V7 - depends on GENERIC_CLOCKEVENTS - depends on HAVE_SMP - depends on MMU - select USE_GENERIC_SMP_HELPERS - select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP - help - This enables support for systems with more than one CPU. If you have - a system with only one CPU, like most personal computers, say N. If - you have a system with more than one CPU, say Y. - - If you say N here, the kernel will run on single and multiprocessor - machines, but will use only one CPU of a multiprocessor machine. If - you say Y here, the kernel will run on many, but not all, single - processor machines. On a single processor machine, the kernel will - run faster if you say N here. - - See also <file:Documentation/x86/i386/IO-APIC.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at - <http://tldp.org/HOWTO/SMP-HOWTO.html>. - - If you don't know what to do here, say N. - -config SMP_ON_UP - bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)" - depends on EXPERIMENTAL - depends on SMP && !XIP_KERNEL - default y - help - SMP kernels contain instructions which fail on non-SMP processors. - Enabling this option allows the kernel to modify itself to make - these instructions safe. Disabling it allows about 1K of space - savings. - - If you don't know what to do here, say Y. - -config ARM_CPU_TOPOLOGY - bool "Support cpu topology definition" - depends on SMP && CPU_V7 - default y - help - Support ARM cpu topology definition. The MPIDR register defines - affinity between processors which is then used to describe the cpu - topology of an ARM System. - -config SCHED_MC - bool "Multi-core scheduler support" - depends on ARM_CPU_TOPOLOGY - help - Multi-core scheduler support improves the CPU scheduler's decision - making when dealing with multi-core CPU chips at a cost of slightly - increased overhead in some places. If unsure say N here. - -config SCHED_SMT - bool "SMT scheduler support" - depends on ARM_CPU_TOPOLOGY - help - Improves the CPU scheduler's decision making when dealing with - MultiThreading at a cost of slightly increased overhead in some - places. If unsure say N here. - -config HAVE_ARM_SCU - bool - help - This option enables support for the ARM system coherency unit - -config HAVE_ARM_TWD - bool - depends on SMP - select TICK_ONESHOT - help - This options enables support for the ARM timer and watchdog unit - -choice - prompt "Memory split" - default VMSPLIT_3G - help - Select the desired split between kernel and user memory. - - If you are not absolutely sure what you are doing, leave this - option alone! - - config VMSPLIT_3G - bool "3G/1G user/kernel split" - config VMSPLIT_2G - bool "2G/2G user/kernel split" - config VMSPLIT_1G - bool "1G/3G user/kernel split" -endchoice - -config PAGE_OFFSET - hex - default 0x40000000 if VMSPLIT_1G - default 0x80000000 if VMSPLIT_2G - default 0xC0000000 - -config NR_CPUS - int "Maximum number of CPUs (2-32)" - range 2 32 - depends on SMP - default "4" - -config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" - depends on SMP && HOTPLUG && EXPERIMENTAL - help - Say Y here to experiment with turning CPUs off and on. CPUs - can be controlled through /sys/devices/system/cpu. - -config LOCAL_TIMERS - bool "Use local timer interrupts" - depends on SMP - default y - select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT) - help - Enable support for local timers on SMP platforms, rather then the - legacy IPI broadcast method. Local timers allows the system - accounting to be spread across the timer interval, preventing a - "thundering herd" at every timer tick. - -config ARCH_NR_GPIO - int - default 1024 if ARCH_SHMOBILE || ARCH_TEGRA - default 355 if ARCH_U8500 - default 264 if MACH_H4700 - default 0 - help - Maximum number of GPIOs in the system. - - If unsure, leave the default value. - -source kernel/Kconfig.preempt - -config HZ - int - default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \ - ARCH_S5PV210 || ARCH_EXYNOS4 - default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER - default AT91_TIMER_HZ if ARCH_AT91 - default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE - default 300 if ARCH_WMT - default 100 - -config THUMB2_KERNEL - bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)" - depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL - select AEABI - select ARM_ASM_UNIFIED - select ARM_UNWIND - help - By enabling this option, the kernel will be compiled in - Thumb-2 mode. A compiler/assembler that understand the unified - ARM-Thumb syntax is needed. - - If unsure, say N. - -config THUMB2_AVOID_R_ARM_THM_JUMP11 - bool "Work around buggy Thumb-2 short branch relocations in gas" - depends on THUMB2_KERNEL && MODULES - default y - help - Various binutils versions can resolve Thumb-2 branches to - locally-defined, preemptible global symbols as short-range "b.n" - branch instructions. - - This is a problem, because there's no guarantee the final - destination of the symbol, or any candidate locations for a - trampoline, are within range of the branch. For this reason, the - kernel does not support fixing up the R_ARM_THM_JUMP11 (102) - relocation in modules at all, and it makes little sense to add - support. - - The symptom is that the kernel fails with an "unsupported - relocation" error when loading some modules. - - Until fixed tools are available, passing - -fno-optimize-sibling-calls to gcc should prevent gcc generating - code which hits this problem, at the cost of a bit of extra runtime - stack usage in some cases. - - The problem is described in more detail at: - https://bugs.launchpad.net/binutils-linaro/+bug/725126 - - Only Thumb-2 kernels are affected. - - Unless you are sure your tools don't have this problem, say Y. - -config ARM_ASM_UNIFIED - bool - -config AEABI - bool "Use the ARM EABI to compile the kernel" - help - This option allows for the kernel to be compiled using the latest - ARM ABI (aka EABI). This is only useful if you are using a user - space environment that is also compiled with EABI. - - Since there are major incompatibilities between the legacy ABI and - EABI, especially with regard to structure member alignment, this - option also changes the kernel syscall calling convention to - disambiguate both ABIs and allow for backward compatibility support - (selected with CONFIG_OABI_COMPAT). - - To use this you need GCC version 4.0.0 or later. - -config OABI_COMPAT - bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" - depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL - default y - help - This option preserves the old syscall interface along with the - new (ARM EABI) one. It also provides a compatibility layer to - intercept syscalls that have structure arguments which layout - in memory differs between the legacy ABI and the new ARM EABI - (only for non "thumb" binaries). This option adds a tiny - overhead to all syscalls and produces a slightly larger kernel. - If you know you'll be using only pure EABI user space then you - can say N here. If this option is not selected and you attempt - to execute a legacy ABI binary then the result will be - UNPREDICTABLE (in fact it can be predicted that it won't work - at all). If in doubt say Y. - -config ARCH_HAS_HOLES_MEMORYMODEL - bool - -config ARCH_SPARSEMEM_ENABLE - bool - -config ARCH_SPARSEMEM_DEFAULT - def_bool ARCH_SPARSEMEM_ENABLE - -config ARCH_SELECT_MEMORY_MODEL - def_bool ARCH_SPARSEMEM_ENABLE - -config HAVE_ARCH_PFN_VALID - def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM - -config HIGHMEM - bool "High Memory Support" - depends on MMU - help - The address space of ARM processors is only 4 Gigabytes large - and it has to accommodate user address space, kernel address - space as well as some memory mapped IO. That means that, if you - have a large amount of physical memory and/or IO, not all of the - memory can be "permanently mapped" by the kernel. The physical - memory that is not permanently mapped is called "high memory". - - Depending on the selected kernel/user memory split, minimum - vmalloc space and actual amount of RAM, you may not need this - option which should result in a slightly faster kernel. - - If unsure, say n. - -config HIGHPTE - bool "Allocate 2nd-level pagetables from highmem" - depends on HIGHMEM - -config HW_PERF_EVENTS - bool "Enable hardware performance counter support for perf events" - depends on PERF_EVENTS && CPU_HAS_PMU - default y - help - Enable hardware performance counter support for perf events. If - disabled, perf events will use software events only. - -source "mm/Kconfig" - -config FORCE_MAX_ZONEORDER - int "Maximum zone order" if ARCH_SHMOBILE - range 11 64 if ARCH_SHMOBILE - default "9" if SA1111 - default "11" - help - The kernel memory allocator divides physically contiguous memory - blocks into "zones", where each zone is a power of two number of - pages. This option selects the largest power of two that the kernel - keeps in the memory allocator. If you need to allocate very large - blocks of physically contiguous memory, then you may need to - increase this value. - - This config option is actually maximum order plus one. For example, - a value of 11 means that the largest free memory block is 2^10 pages. - -config LEDS - bool "Timer and CPU usage LEDs" - depends on ARCH_WMT || ARCH_CDB89712 || ARCH_EBSA110 || \ - ARCH_EBSA285 || ARCH_INTEGRATOR || \ - ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ - ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ - ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ - ARCH_AT91 || ARCH_DAVINCI || \ - ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW - help - If you say Y here, the LEDs on your machine will be used - to provide useful information about your current system status. - - If you are compiling a kernel for a NetWinder or EBSA-285, you will - be able to select which LEDs are active using the options below. If - you are compiling a kernel for the EBSA-110 or the LART however, the - red LED will simply flash regularly to indicate that the system is - still functional. It is safe to say Y here if you have a CATS - system, but the driver will do nothing. - -config LEDS_TIMER - bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ - OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ - || MACH_OMAP_PERSEUS2 - depends on LEDS - depends on !GENERIC_CLOCKEVENTS - default y if ARCH_WMT - help - If you say Y here, one of the system LEDs (the green one on the - NetWinder, the amber one on the EBSA285, or the red one on the LART) - will flash regularly to indicate that the system is still - operational. This is mainly useful to kernel hackers who are - debugging unstable kernels. - - The LART uses the same LED for both Timer LED and CPU usage LED - functions. You may choose to use both, but the Timer LED function - will overrule the CPU usage LED. - -config LEDS_CPU - bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ - !ARCH_OMAP) \ - || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ - || MACH_OMAP_PERSEUS2 - depends on LEDS - help - If you say Y here, the red LED will be used to give a good real - time indication of CPU usage, by lighting whenever the idle task - is not currently executing. - - The LART uses the same LED for both Timer LED and CPU usage LED - functions. You may choose to use both, but the Timer LED function - will overrule the CPU usage LED. - -config ALIGNMENT_TRAP - bool - depends on CPU_CP15_MMU - default y if !ARCH_EBSA110 - select HAVE_PROC_CPU if PROC_FS - help - ARM processors cannot fetch/store information which is not - naturally aligned on the bus, i.e., a 4 byte fetch must start at an - address divisible by 4. On 32-bit ARM processors, these non-aligned - fetch/store instructions will be emulated in software if you say - here, which has a severe performance impact. This is necessary for - correct operation of some network protocols. With an IP-only - configuration it is safe to say N, otherwise say Y. - -config UACCESS_WITH_MEMCPY - bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" - depends on MMU && EXPERIMENTAL - default y if CPU_FEROCEON - help - Implement faster copy_to_user and clear_user methods for CPU - cores where a 8-word STM instruction give significantly higher - memory write throughput than a sequence of individual 32bit stores. - - A possible side effect is a slight increase in scheduling latency - between threads sharing the same address space if they invoke - such copy operations with large buffers. - - However, if the CPU data cache is using a write-allocate mode, - this option is unlikely to provide any performance gain. - -config SECCOMP - bool - prompt "Enable seccomp to safely compute untrusted bytecode" - ---help--- - This kernel feature is useful for number crunching applications - that may need to compute untrusted bytecode during their - execution. By using pipes or other transports made available to - the process as file descriptors supporting the read/write - syscalls, it's possible to isolate those applications in - their own address space using seccomp. Once seccomp is - enabled via prctl(PR_SET_SECCOMP), it cannot be disabled - and the task is only allowed to execute a few safe syscalls - defined by each seccomp mode. - -config CC_STACKPROTECTOR - bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" - depends on EXPERIMENTAL - help - This option turns on the -fstack-protector GCC feature. This - feature puts, at the beginning of functions, a canary value on - the stack just before the return address, and validates - the value just before actually returning. Stack based buffer - overflows (that need to overwrite this return address) now also - overwrite the canary, which gets detected and the attack is then - neutralized via a kernel panic. - This feature requires gcc version 4.2 or above. - -config DEPRECATED_PARAM_STRUCT - bool "Provide old way to pass kernel parameters" - help - This was deprecated in 2001 and announced to live on for 5 years. - Some old boot loaders still use this way. - -config ARM_FLUSH_CONSOLE_ON_RESTART - bool "Force flush the console on restart" - help - If the console is locked while the system is rebooted, the messages - in the temporary logbuffer would not have propogated to all the - console drivers. This option forces the console lock to be - released if it failed to be acquired, which will cause all the - pending messages to be flushed. - -endmenu - -menu "Boot options" - -config USE_OF - bool "Flattened Device Tree support" - select OF - select OF_EARLY_FLATTREE - select IRQ_DOMAIN - help - Include support for flattened device tree machine descriptions. - -# Compressed boot loader in ROM. Yes, we really want to ask about -# TEXT and BSS so we preserve their values in the config files. -config ZBOOT_ROM_TEXT - hex "Compressed ROM boot loader base address" - default "0" - help - The physical address at which the ROM-able zImage is to be - placed in the target. Platforms which normally make use of - ROM-able zImage formats normally set this to a suitable - value in their defconfig file. - - If ZBOOT_ROM is not enabled, this has no effect. - -config ZBOOT_ROM_BSS - hex "Compressed ROM boot loader BSS address" - default "0" - help - The base address of an area of read/write memory in the target - for the ROM-able zImage which must be available while the - decompressor is running. It must be large enough to hold the - entire decompressed kernel plus an additional 128 KiB. - Platforms which normally make use of ROM-able zImage formats - normally set this to a suitable value in their defconfig file. - - If ZBOOT_ROM is not enabled, this has no effect. - -config ZBOOT_ROM - bool "Compressed boot loader in ROM/flash" - depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS - help - Say Y here if you intend to execute your compressed kernel image - (zImage) directly from ROM or flash. If unsure, say N. - -choice - prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)" - depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL - default ZBOOT_ROM_NONE - help - Include experimental SD/MMC loading code in the ROM-able zImage. - With this enabled it is possible to write the the ROM-able zImage - kernel image to an MMC or SD card and boot the kernel straight - from the reset vector. At reset the processor Mask ROM will load - the first part of the the ROM-able zImage which in turn loads the - rest the kernel image to RAM. - -config ZBOOT_ROM_NONE - bool "No SD/MMC loader in zImage (EXPERIMENTAL)" - help - Do not load image from SD or MMC - -config ZBOOT_ROM_MMCIF - bool "Include MMCIF loader in zImage (EXPERIMENTAL)" - help - Load image from MMCIF hardware block. - -config ZBOOT_ROM_SH_MOBILE_SDHI - bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)" - help - Load image from SDHI hardware block - -endchoice - -config ARM_APPENDED_DTB - bool "Use appended device tree blob to zImage (EXPERIMENTAL)" - depends on OF && !ZBOOT_ROM && EXPERIMENTAL - help - With this option, the boot code will look for a device tree binary - (DTB) appended to zImage - (e.g. cat zImage <filename>.dtb > zImage_w_dtb). - - This is meant as a backward compatibility convenience for those - systems with a bootloader that can't be upgraded to accommodate - the documented boot protocol using a device tree. - - Beware that there is very little in terms of protection against - this option being confused by leftover garbage in memory that might - look like a DTB header after a reboot if no actual DTB is appended - to zImage. Do not leave this option active in a production kernel - if you don't intend to always append a DTB. Proper passing of the - location into r2 of a bootloader provided DTB is always preferable - to this option. - -config ARM_ATAG_DTB_COMPAT - bool "Supplement the appended DTB with traditional ATAG information" - depends on ARM_APPENDED_DTB - help - Some old bootloaders can't be updated to a DTB capable one, yet - they provide ATAGs with memory configuration, the ramdisk address, - the kernel cmdline string, etc. Such information is dynamically - provided by the bootloader and can't always be stored in a static - DTB. To allow a device tree enabled kernel to be used with such - bootloaders, this option allows zImage to extract the information - from the ATAG list and store it at run time into the appended DTB. - -config CMDLINE - string "Default kernel command string" - default "" - help - On some architectures (EBSA110 and CATS), there is currently no way - for the boot loader to pass arguments to the kernel. For these - architectures, you should supply some command-line options at build - time by entering them here. As a minimum, you should specify the - memory size and the root device (e.g., mem=64M root=/dev/nfs). - -choice - prompt "Kernel command line type" if CMDLINE != "" - default CMDLINE_FROM_BOOTLOADER - -config CMDLINE_FROM_BOOTLOADER - bool "Use bootloader kernel arguments if available" - help - Uses the command-line options passed by the boot loader. If - the boot loader doesn't provide any, the default kernel command - string provided in CMDLINE will be used. - -config CMDLINE_EXTEND - bool "Extend bootloader kernel arguments" - help - The command-line arguments provided by the boot loader will be - appended to the default kernel command string. - -config CMDLINE_FORCE - bool "Always use the default kernel command string" - help - Always use the default kernel command string, even if the boot - loader passes other arguments to the kernel. - This is useful if you cannot or don't want to change the - command-line options your boot loader passes to the kernel. -endchoice - -config XIP_KERNEL - bool "Kernel Execute-In-Place from ROM" - depends on !ZBOOT_ROM && !ARM_LPAE - help - Execute-In-Place allows the kernel to run from non-volatile storage - directly addressable by the CPU, such as NOR flash. This saves RAM - space since the text section of the kernel is not loaded from flash - to RAM. Read-write sections, such as the data section and stack, - are still copied to RAM. The XIP kernel is not compressed since - it has to run directly from flash, so it will take more space to - store it. The flash address used to link the kernel object files, - and for storing it, is configuration dependent. Therefore, if you - say Y here, you must know the proper physical address where to - store the kernel image depending on your own flash memory usage. - - Also note that the make target becomes "make xipImage" rather than - "make zImage" or "make Image". The final kernel binary to put in - ROM memory will be arch/arm/boot/xipImage. - - If unsure, say N. - -config XIP_PHYS_ADDR - hex "XIP Kernel Physical Location" - depends on XIP_KERNEL - default "0x00080000" - help - This is the physical address in your flash memory the kernel will - be linked for and stored to. This address is dependent on your - own flash usage. - -config KEXEC - bool "Kexec system call (EXPERIMENTAL)" - depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU) - help - kexec is a system call that implements the ability to shutdown your - current kernel, and to start another kernel. It is like a reboot - but it is independent of the system firmware. And like a reboot - you can start any kernel with it, not just Linux. - - It is an ongoing process to be certain the hardware in a machine - is properly shutdown, so do not be surprised if this code does not - initially work for you. It may help to enable device hotplugging - support. - -config ATAGS_PROC - bool "Export atags in procfs" - depends on KEXEC - default y - help - Should the atags used to boot the kernel be exported in an "atags" - file in procfs. Useful with kexec. - -config CRASH_DUMP - bool "Build kdump crash kernel (EXPERIMENTAL)" - depends on EXPERIMENTAL - help - Generate crash dump after being started by kexec. This should - be normally only set in special crash dump kernels which are - loaded in the main kernel with kexec-tools into a specially - reserved region and then later executed after a crash by - kdump/kexec. The crash dump kernel must be compiled to a - memory address not used by the main kernel - - For more details see Documentation/kdump/kdump.txt - -config AUTO_ZRELADDR - bool "Auto calculation of the decompressed kernel image address" - depends on !ZBOOT_ROM && !ARCH_U300 - help - ZRELADDR is the physical address where the decompressed kernel - image will be placed. If AUTO_ZRELADDR is selected, the address - will be determined at run-time by masking the current IP with - 0xf8000000. This assumes the zImage being placed in the first 128MB - from start of memory. - -endmenu - -menu "CPU Power Management" - -if ARCH_HAS_CPUFREQ - -source "drivers/cpufreq/Kconfig" - -config CPU_FREQ_IMX - tristate "CPUfreq driver for i.MX CPUs" - depends on ARCH_MXC && CPU_FREQ - help - This enables the CPUfreq driver for i.MX CPUs. - -config CPU_FREQ_SA1100 - bool - -config CPU_FREQ_SA1110 - bool - -config CPU_FREQ_INTEGRATOR - tristate "CPUfreq driver for ARM Integrator CPUs" - depends on ARCH_INTEGRATOR && CPU_FREQ - default y - help - This enables the CPUfreq driver for ARM Integrator CPUs. - - For details, take a look at <file:Documentation/cpu-freq>. - - If in doubt, say Y. - -config CPU_FREQ_PXA - bool - depends on CPU_FREQ && ARCH_PXA && PXA25x - default y - select CPU_FREQ_TABLE - select CPU_FREQ_DEFAULT_GOV_USERSPACE - -config CPU_FREQ_S3C - bool - help - Internal configuration node for common cpufreq on Samsung SoC - -config CPU_FREQ_S3C24XX - bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" - depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL - select CPU_FREQ_S3C - help - This enables the CPUfreq driver for the Samsung S3C24XX family - of CPUs. - - For details, take a look at <file:Documentation/cpu-freq>. - - If in doubt, say N. - -config CPU_FREQ_S3C24XX_PLL - bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)" - depends on CPU_FREQ_S3C24XX && EXPERIMENTAL - help - Compile in support for changing the PLL frequency from the - S3C24XX series CPUfreq driver. The PLL takes time to settle - after a frequency change, so by default it is not enabled. - - This also means that the PLL tables for the selected CPU(s) will - be built which may increase the size of the kernel image. - -config CPU_FREQ_S3C24XX_DEBUG - bool "Debug CPUfreq Samsung driver core" - depends on CPU_FREQ_S3C24XX - help - Enable s3c_freq_dbg for the Samsung S3C CPUfreq core - -config CPU_FREQ_S3C24XX_IODEBUG - bool "Debug CPUfreq Samsung driver IO timing" - depends on CPU_FREQ_S3C24XX - help - Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core - -config CPU_FREQ_S3C24XX_DEBUGFS - bool "Export debugfs for CPUFreq" - depends on CPU_FREQ_S3C24XX && DEBUG_FS - help - Export status information via debugfs. - -endif - -source "drivers/cpuidle/Kconfig" - -endmenu - -menu "Floating point emulation" - -comment "At least one emulation must be selected" - -config FPE_NWFPE - bool "NWFPE math emulation" - depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL - ---help--- - Say Y to include the NWFPE floating point emulator in the kernel. - This is necessary to run most binaries. Linux does not currently - support floating point hardware so you need to say Y here even if - your machine has an FPA or floating point co-processor podule. - - You may say N here if you are going to load the Acorn FPEmulator - early in the bootup. - -config FPE_NWFPE_XP - bool "Support extended precision" - depends on FPE_NWFPE - help - Say Y to include 80-bit support in the kernel floating-point - emulator. Otherwise, only 32 and 64-bit support is compiled in. - Note that gcc does not generate 80-bit operations by default, - so in most cases this option only enlarges the size of the - floating point emulator without any good reason. - - You almost surely want to say N here. - -config FPE_FASTFPE - bool "FastFPE math emulation (EXPERIMENTAL)" - depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL - ---help--- - Say Y here to include the FAST floating point emulator in the kernel. - This is an experimental much faster emulator which now also has full - precision for the mantissa. It does not support any exceptions. - It is very simple, and approximately 3-6 times faster than NWFPE. - - It should be sufficient for most programs. It may be not suitable - for scientific calculations, but you have to check this for yourself. - If you do not feel you need a faster FP emulation you should better - choose NWFPE. - -config VFP - bool "VFP-format floating point maths" - depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON - help - Say Y to include VFP support code in the kernel. This is needed - if your hardware includes a VFP unit. - - Please see <file:Documentation/arm/VFP/release-notes.txt> for - release notes and additional status information. - - Say N if your target does not have VFP hardware. - -config VFPv3 - bool - depends on VFP - default y if CPU_V7 - -config NEON - bool "Advanced SIMD (NEON) Extension support" - depends on VFPv3 && CPU_V7 - help - Say Y to include support code for NEON, the ARMv7 Advanced SIMD - Extension. - -endmenu - -menu "Userspace binary formats" - -source "fs/Kconfig.binfmt" - -config ARTHUR - tristate "RISC OS personality" - depends on !AEABI - help - Say Y here to include the kernel code necessary if you want to run - Acorn RISC OS/Arthur binaries under Linux. This code is still very - experimental; if this sounds frightening, say N and sleep in peace. - You can also say M here to compile this support as a module (which - will be called arthur). - -endmenu - -menu "Power management options" - -source "kernel/power/Kconfig" - -config ARCH_SUSPEND_POSSIBLE - depends on !ARCH_S5PC100 - depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \ - CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE - def_bool y - -config ARM_CPU_SUSPEND - def_bool PM_SLEEP - -config ARCH_HIBERNATION_POSSIBLE - bool - depends on MMU - default y if CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V6K || CPU_V7 - help - Support for Suspend to Disk. - -source "kernel/power/Kconfig" - -endmenu - -source "net/Kconfig" - -source "drivers/Kconfig" - -source "fs/Kconfig" - -source "arch/arm/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" |