select HAVE_GENERIC_HARDIRQS
select HAVE_SPARSE_IRQ
select GENERIC_IRQ_SHOW
+ select CPU_PM if (SUSPEND || CPU_IDLE)
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
The base address of exception vectors.
config ARM_PATCH_PHYS_VIRT
- bool "Patch physical to virtual translations at runtime"
+ bool "Patch physical to virtual translations at runtime" if EMBEDDED
+ default y
depends on !XIP_KERNEL && MMU
depends on !ARCH_REALVIEW || !SPARSEMEM
help
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, or theoretically 64K
- for the MSM machine class.
+ of physical memory is at a 16MB boundary.
-config ARM_PATCH_PHYS_VIRT_16BIT
- def_bool y
- depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
+ 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_MEMORY_H
+ bool
help
- This option extends the physical to virtual translation patching
- to allow physical memory down to a theoretical minimum of 64K
- boundaries.
+ 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"
+ depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
+ help
+ Please provide the physical address corresponding to the
+ location of main memory in your system.
source "init/Kconfig"
select GENERIC_CLOCKEVENTS
select PLAT_VERSATILE
select PLAT_VERSATILE_FPGA_IRQ
+ select NEED_MACH_MEMORY_H
help
Support for ARM's Integrator platform.
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.
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
select CLKDEV_LOOKUP
- select ARM_PATCH_PHYS_VIRT if MMU
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
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 CLKDEV_LOOKUP
+ select CPU_V7
+ select GENERIC_CLOCKEVENTS
+ select HAVE_ARM_SCU
+ 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.
select ISA
select NO_IOPORT
select ARCH_USES_GETTIMEOFFSET
+ 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
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_HOLES_MEMORYMODEL
select ARCH_USES_GETTIMEOFFSET
+ select NEED_MEMORY_H
help
This enables support for the Cirrus EP93xx series of CPUs.
select CPU_SA110
select FOOTBRIDGE
select GENERIC_CLOCKEVENTS
+ 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.
select CLKSRC_MMIO
select GENERIC_IRQ_CHIP
select HAVE_SCHED_CLOCK
+ select MULTI_IRQ_HANDLER
help
Support for Freescale MXC/iMX-based family of processors
select PCI
select ARCH_SUPPORTS_MSI
select VMSPLIT_1G
+ select NEED_MACH_MEMORY_H
help
Support for Intel's IOP13XX (XScale) family of processors.
select CPU_XSC3
select PCI
select ARCH_USES_GETTIMEOFFSET
+ select NEED_MACH_MEMORY_H
help
Support for Intel's IXP23xx (XScale) family of processors.
select CPU_XSCALE
select PCI
select ARCH_USES_GETTIMEOFFSET
+ select NEED_MACH_MEMORY_H
help
Support for Intel's IXP2400/2800 (XScale) family of processors.
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.
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.
select NO_IOPORT
select ARCH_SPARSEMEM_ENABLE
select ARCH_USES_GETTIMEOFFSET
+ 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.
select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select ARCH_REQUIRE_GPIOLIB
+ select NEED_MACH_MEMORY_H
help
Support for StrongARM 11x0 based boards.
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
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
Samsung EXYNOS4 series based systems
select ZONE_DMA
select PCI
select ARCH_USES_GETTIMEOFFSET
+ select NEED_MACH_MEMORY_H
help
Support for the StrongARM based Digital DNARD machine, also known
as "Shark" (<http://www.shark-linux.de/shark.html>).
select CLKDEV_LOOKUP
select HAVE_MACH_CLKDEV
select GENERIC_GPIO
+ select ARCH_REQUIRE_GPIOLIB
+ select NEED_MACH_MEMORY_H
help
Support for ST-Ericsson U300 series mobile platforms.
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.
+
endmenu
source "arch/arm/common/Kconfig"
depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
- ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
+ ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK
select USE_GENERIC_SMP_HELPERS
select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
help
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
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 ""
git.openpandora.org / pandora-kernel.git / blobdiff