diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 216 |
1 files changed, 164 insertions, 52 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5cff165b7eb..93d595a7477 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -7,7 +7,7 @@ config ARM select HAVE_MEMBLOCK select RTC_LIB select SYS_SUPPORTS_APM_EMULATION - select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI) + select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI) select HAVE_OPROFILE if (HAVE_PERF_EVENTS) select HAVE_ARCH_KGDB select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL) @@ -24,7 +24,7 @@ config ARM 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_V7)) + select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)) select HAVE_C_RECORDMCOUNT select HAVE_GENERIC_HARDIRQS select HAVE_SPARSE_IRQ @@ -63,6 +63,10 @@ config GENERIC_CLOCKEVENTS_BROADCAST depends on GENERIC_CLOCKEVENTS default y if SMP +config KTIME_SCALAR + bool + default y + config HAVE_TCM bool select GENERIC_ALLOCATOR @@ -178,11 +182,6 @@ config FIQ config ARCH_MTD_XIP bool -config ARM_L1_CACHE_SHIFT_6 - bool - help - Setting ARM L1 cache line size to 64 Bytes. - config VECTORS_BASE hex default 0xffff0000 if MMU || CPU_HIGH_VECTOR @@ -191,6 +190,22 @@ config VECTORS_BASE help The base address of exception vectors. +config ARM_PATCH_PHYS_VIRT + bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on !XIP_KERNEL && MMU + depends on !ARCH_REALVIEW || !SPARSEMEM + help + Patch phys-to-virt translation functions at runtime according to + the position of the kernel in system memory. + + This can only be used with non-XIP with MMU kernels where + the base 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 + source "init/Kconfig" source "kernel/Kconfig.freezer" @@ -212,15 +227,6 @@ choice prompt "ARM system type" default ARCH_VERSATILE -config ARCH_AAEC2000 - bool "Agilent AAEC-2000 based" - select CPU_ARM920T - select ARM_AMBA - select HAVE_CLK - select ARCH_USES_GETTIMEOFFSET - help - This enables support for systems based on the Agilent AAEC-2000 - config ARCH_INTEGRATOR bool "ARM Ltd. Integrator family" select ARM_AMBA @@ -229,6 +235,7 @@ config ARCH_INTEGRATOR select ICST select GENERIC_CLOCKEVENTS select PLAT_VERSATILE + select PLAT_VERSATILE_FPGA_IRQ help Support for ARM's Integrator platform. @@ -236,11 +243,11 @@ config ARCH_REALVIEW bool "ARM Ltd. RealView family" select ARM_AMBA select CLKDEV_LOOKUP - select HAVE_SCHED_CLOCK 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 help @@ -251,11 +258,12 @@ config ARCH_VERSATILE select ARM_AMBA select ARM_VIC select CLKDEV_LOOKUP - select HAVE_SCHED_CLOCK 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. @@ -268,9 +276,10 @@ config ARCH_VEXPRESS select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_CLK - select HAVE_SCHED_CLOCK + select HAVE_PATA_PLATFORM select ICST select PLAT_VERSATILE + select PLAT_VERSATILE_CLCD help This enables support for the ARM Ltd Versatile Express boards. @@ -346,7 +355,7 @@ config ARCH_FOOTBRIDGE bool "FootBridge" select CPU_SA110 select FOOTBRIDGE - select ARCH_USES_GETTIMEOFFSET + select GENERIC_CLOCKEVENTS help Support for systems based on the DC21285 companion chip ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. @@ -457,6 +466,7 @@ config ARCH_IXP4XX config ARCH_DOVE bool "Marvell Dove" + select CPU_V6K select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS @@ -619,6 +629,7 @@ config ARCH_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 @@ -715,7 +726,8 @@ config ARCH_S5P64X0 select GENERIC_GPIO select HAVE_CLK select HAVE_S3C2410_WATCHDOG if WATCHDOG - select ARCH_USES_GETTIMEOFFSET + select GENERIC_CLOCKEVENTS + select HAVE_SCHED_CLOCK select HAVE_S3C2410_I2C if I2C select HAVE_S3C_RTC if RTC_CLASS help @@ -753,15 +765,16 @@ config ARCH_S5PV210 select HAVE_CLK select ARM_L1_CACHE_SHIFT_6 select ARCH_HAS_CPUFREQ - select ARCH_USES_GETTIMEOFFSET + select GENERIC_CLOCKEVENTS + select HAVE_SCHED_CLOCK select HAVE_S3C2410_I2C if I2C select HAVE_S3C_RTC if RTC_CLASS select HAVE_S3C2410_WATCHDOG if WATCHDOG help Samsung S5PV210/S5PC110 series based systems -config ARCH_S5PV310 - bool "Samsung S5PV310/S5PC210" +config ARCH_EXYNOS4 + bool "Samsung EXYNOS4" select CPU_V7 select ARCH_SPARSEMEM_ENABLE select GENERIC_GPIO @@ -772,7 +785,7 @@ config ARCH_S5PV310 select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG help - Samsung S5PV310 series based systems + Samsung EXYNOS4 series based systems config ARCH_SHARK bool "Shark" @@ -795,17 +808,6 @@ config ARCH_TCC_926 help Support for Telechips TCC ARM926-based systems. -config ARCH_LH7A40X - bool "Sharp LH7A40X" - select CPU_ARM922T - select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM - select ARCH_USES_GETTIMEOFFSET - help - Say Y here for systems based on one of the Sharp LH7A40X - System on a Chip processors. These CPUs include an ARM922T - core with a wide array of integrated devices for - hand-held and low-power applications. - config ARCH_U300 bool "ST-Ericsson U300 Series" depends on MMU @@ -875,6 +877,16 @@ config PLAT_SPEAR 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. endchoice # @@ -882,8 +894,6 @@ endchoice # Kconfigs may be included either alphabetically (according to the # plat- suffix) or along side the corresponding mach-* source. # -source "arch/arm/mach-aaec2000/Kconfig" - source "arch/arm/mach-at91/Kconfig" source "arch/arm/mach-bcmring/Kconfig" @@ -922,8 +932,6 @@ source "arch/arm/mach-kirkwood/Kconfig" source "arch/arm/mach-ks8695/Kconfig" -source "arch/arm/mach-lh7a40x/Kconfig" - source "arch/arm/mach-loki/Kconfig" source "arch/arm/mach-lpc32xx/Kconfig" @@ -991,7 +999,7 @@ source "arch/arm/mach-s5pc100/Kconfig" source "arch/arm/mach-s5pv210/Kconfig" -source "arch/arm/mach-s5pv310/Kconfig" +source "arch/arm/mach-exynos4/Kconfig" source "arch/arm/mach-shmobile/Kconfig" @@ -1006,6 +1014,9 @@ 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" @@ -1048,7 +1059,7 @@ config XSCALE_PMU default y config CPU_HAS_PMU - depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \ + depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \ (!ARCH_OMAP3 || OMAP3_EMU) default y bool @@ -1064,7 +1075,7 @@ endif config ARM_ERRATA_411920 bool "ARM errata: Invalidation of the Instruction Cache operation can fail" - depends on CPU_V6 + 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. @@ -1140,7 +1151,7 @@ config ARM_ERRATA_742231 config PL310_ERRATA_588369 bool "Clean & Invalidate maintenance operations do not invalidate clean lines" - depends on CACHE_L2X0 && ARCH_OMAP4 + depends on CACHE_L2X0 help The PL310 L2 cache controller implements three types of Clean & Invalidate maintenance operations: by Physical Address @@ -1149,8 +1160,7 @@ config PL310_ERRATA_588369 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. Note that this errata - uses Texas Instrument's secure monitor api. + invalidated as a result of these operations. config ARM_ERRATA_720789 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" @@ -1164,6 +1174,17 @@ config ARM_ERRATA_720789 tables. The workaround changes the TLB flushing routines to invalidate entries regardless of the ASID. +config PL310_ERRATA_727915 + bool "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 @@ -1177,6 +1198,53 @@ config ARM_ERRATA_743622 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 && SMP + 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 ARM_ERRATA_753970 + bool "ARM 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. + endmenu source "arch/arm/common/Kconfig" @@ -1250,10 +1318,11 @@ source "kernel/time/Kconfig" config SMP bool "Symmetric Multi-Processing (EXPERIMENTAL)" depends on EXPERIMENTAL + depends on CPU_V6K || CPU_V7 depends on GENERIC_CLOCKEVENTS depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \ MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \ - ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \ + ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \ ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE select USE_GENERIC_SMP_HELPERS select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP @@ -1341,7 +1410,7 @@ config LOCAL_TIMERS bool "Use local timer interrupts" depends on SMP default y - select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP + 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 @@ -1353,7 +1422,7 @@ source kernel/Kconfig.preempt config HZ int default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \ - ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310 + ARCH_S5P6442 || 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 @@ -1361,7 +1430,7 @@ config HZ config THUMB2_KERNEL bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)" - depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL + depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL select AEABI select ARM_ASM_UNIFIED help @@ -1371,6 +1440,37 @@ config THUMB2_KERNEL 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 @@ -1391,7 +1491,7 @@ config AEABI config OABI_COMPAT bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" - depends on AEABI && EXPERIMENTAL + depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL default y help This option preserves the old syscall interface along with the @@ -1619,6 +1719,18 @@ config ZBOOT_ROM Say Y here if you intend to execute your compressed kernel image (zImage) directly from ROM or flash. If unsure, say N. +config ZBOOT_ROM_MMCIF + bool "Include MMCIF loader in zImage (EXPERIMENTAL)" + depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL + help + Say Y here to include experimental MMCIF 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 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 using the + MMCIF hardware block. + config CMDLINE string "Default kernel command string" default "" @@ -1852,7 +1964,7 @@ config FPE_FASTFPE config VFP bool "VFP-format floating point maths" - depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON + 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. |