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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/Kconfig
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--arch/arm/Kconfig2201
-rw-r--r--arch/arm/Kconfig-nommu64
-rw-r--r--arch/arm/Kconfig.debug1893
3 files changed, 4158 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
new file mode 100644
index 000000000..d89d013f5
--- /dev/null
+++ b/arch/arm/Kconfig
@@ -0,0 +1,2201 @@
+# SPDX-License-Identifier: GPL-2.0
+config ARM
+ bool
+ default y
+ select ARCH_CLOCKSOURCE_DATA
+ select ARCH_DISCARD_MEMBLOCK if !HAVE_ARCH_PFN_VALID && !KEXEC
+ select ARCH_HAS_DEBUG_VIRTUAL if MMU
+ select ARCH_HAS_DEVMEM_IS_ALLOWED
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_FORTIFY_SOURCE
+ select ARCH_HAS_KCOV
+ select ARCH_HAS_MEMBARRIER_SYNC_CORE
+ select ARCH_HAS_PTE_SPECIAL if ARM_LPAE
+ select ARCH_HAS_PHYS_TO_DMA
+ select ARCH_HAS_SET_MEMORY
+ select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL
+ select ARCH_HAS_STRICT_MODULE_RWX if MMU
+ select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ select ARCH_HAVE_CUSTOM_GPIO_H
+ select ARCH_HAS_GCOV_PROFILE_ALL
+ select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
+ select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
+ select ARCH_SUPPORTS_ATOMIC_RMW
+ select ARCH_USE_BUILTIN_BSWAP
+ select ARCH_USE_CMPXCHG_LOCKREF
+ select ARCH_WANT_IPC_PARSE_VERSION
+ select BUILDTIME_EXTABLE_SORT if MMU
+ select CLONE_BACKWARDS
+ select CPU_PM if (SUSPEND || CPU_IDLE)
+ select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select DMA_DIRECT_OPS if !MMU
+ select EDAC_SUPPORT
+ select EDAC_ATOMIC_SCRUB
+ select GENERIC_ALLOCATOR
+ select GENERIC_ARCH_TOPOLOGY if ARM_CPU_TOPOLOGY
+ select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
+ select GENERIC_CLOCKEVENTS_BROADCAST if SMP
+ select GENERIC_CPU_AUTOPROBE
+ select GENERIC_EARLY_IOREMAP
+ select GENERIC_IDLE_POLL_SETUP
+ select GENERIC_IRQ_PROBE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_IRQ_SHOW_LEVEL
+ select GENERIC_PCI_IOMAP
+ select GENERIC_SCHED_CLOCK
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_STRNCPY_FROM_USER
+ select GENERIC_STRNLEN_USER
+ select HANDLE_DOMAIN_IRQ
+ select HARDIRQS_SW_RESEND
+ select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
+ select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
+ select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
+ select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
+ select HAVE_ARCH_MMAP_RND_BITS if MMU
+ select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
+ select HAVE_ARCH_THREAD_STRUCT_WHITELIST
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_ARM_SMCCC if CPU_V7
+ select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
+ select HAVE_CONTEXT_TRACKING
+ select HAVE_C_RECORDMCOUNT
+ select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL
+ select HAVE_DMA_CONTIGUOUS if MMU
+ select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
+ select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
+ select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
+ select HAVE_EXIT_THREAD
+ select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
+ select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
+ select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+ select HAVE_FUTEX_CMPXCHG if FUTEX
+ select HAVE_GCC_PLUGINS
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
+ select HAVE_IDE if PCI || ISA || PCMCIA
+ select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZ4
+ select HAVE_KERNEL_LZMA
+ select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_XZ
+ select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
+ select HAVE_KRETPROBES if (HAVE_KPROBES)
+ select HAVE_MEMBLOCK
+ select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_NMI
+ select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
+ select HAVE_OPTPROBES if !THUMB2_KERNEL
+ select HAVE_PERF_EVENTS
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
+ select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_RSEQ
+ select HAVE_STACKPROTECTOR
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_UID16
+ select HAVE_VIRT_CPU_ACCOUNTING_GEN
+ select IRQ_FORCED_THREADING
+ select MODULES_USE_ELF_REL
+ select NEED_DMA_MAP_STATE
+ select NO_BOOTMEM
+ select OF_EARLY_FLATTREE if OF
+ select OF_RESERVED_MEM if OF
+ select OLD_SIGACTION
+ select OLD_SIGSUSPEND3
+ select PERF_USE_VMALLOC
+ select REFCOUNT_FULL
+ select RTC_LIB
+ select SYS_SUPPORTS_APM_EMULATION
+ # Above selects are sorted alphabetically; please add new ones
+ # according to that. Thanks.
+ 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
+ select ARCH_HAS_SG_CHAIN
+ bool
+
+config ARM_DMA_USE_IOMMU
+ bool
+ select ARM_HAS_SG_CHAIN
+ select NEED_SG_DMA_LENGTH
+
+if ARM_DMA_USE_IOMMU
+
+config ARM_DMA_IOMMU_ALIGNMENT
+ int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
+ range 4 9
+ default 8
+ help
+ DMA mapping framework by default aligns all buffers to the smallest
+ PAGE_SIZE order which is greater than or equal to the requested buffer
+ size. This works well for buffers up to a few hundreds kilobytes, but
+ for larger buffers it just a waste of address space. Drivers which has
+ relatively small addressing window (like 64Mib) might run out of
+ virtual space with just a few allocations.
+
+ With this parameter you can specify the maximum PAGE_SIZE order for
+ DMA IOMMU buffers. Larger buffers will be aligned only to this
+ specified order. The order is expressed as a power of two multiplied
+ by the PAGE_SIZE.
+
+endif
+
+config MIGHT_HAVE_PCI
+ bool
+
+config SYS_SUPPORTS_APM_EMULATION
+ bool
+
+config HAVE_TCM
+ bool
+ select GENERIC_ALLOCATOR
+
+config HAVE_PROC_CPU
+ bool
+
+config NO_IOPORT_MAP
+ 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 STACKTRACE_SUPPORT
+ bool
+ default y
+
+config LOCKDEP_SUPPORT
+ bool
+ default y
+
+config TRACE_IRQFLAGS_SUPPORT
+ bool
+ default !CPU_V7M
+
+config RWSEM_XCHGADD_ALGORITHM
+ bool
+ default y
+
+config ARCH_HAS_ILOG2_U32
+ bool
+
+config ARCH_HAS_ILOG2_U64
+ bool
+
+config ARCH_HAS_BANDGAP
+ bool
+
+config FIX_EARLYCON_MEM
+ def_bool y if MMU
+
+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 ARCH_SUPPORTS_UPROBES
+ 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 ARM_PATCH_PHYS_VIRT
+ bool "Patch physical to virtual translations at runtime" if EMBEDDED
+ default y
+ depends on !XIP_KERNEL && MMU
+ 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
+ default DRAM_BASE if !MMU
+ default 0x00000000 if ARCH_EBSA110 || \
+ ARCH_FOOTBRIDGE || \
+ ARCH_INTEGRATOR || \
+ ARCH_IOP13XX || \
+ ARCH_KS8695 || \
+ ARCH_REALVIEW
+ default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
+ default 0x20000000 if ARCH_S5PV210
+ default 0xc0000000 if ARCH_SA1100
+ 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
+
+config PGTABLE_LEVELS
+ int
+ default 3 if ARM_LPAE
+ default 2
+
+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'.
+
+config ARCH_MMAP_RND_BITS_MIN
+ default 8
+
+config ARCH_MMAP_RND_BITS_MAX
+ default 14 if PAGE_OFFSET=0x40000000
+ default 15 if PAGE_OFFSET=0x80000000
+ default 16
+
+#
+# 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 ARM_SINGLE_ARMV7M if !MMU
+ default ARCH_MULTIPLATFORM if MMU
+
+config ARCH_MULTIPLATFORM
+ bool "Allow multiple platforms to be selected"
+ depends on MMU
+ select ARM_HAS_SG_CHAIN
+ select ARM_PATCH_PHYS_VIRT
+ select AUTO_ZRELADDR
+ select TIMER_OF
+ select COMMON_CLK
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_MULTI_HANDLER
+ select MIGHT_HAVE_PCI
+ select PCI_DOMAINS if PCI
+ select SPARSE_IRQ
+ select USE_OF
+
+config ARM_SINGLE_ARMV7M
+ bool "ARMv7-M based platforms (Cortex-M0/M3/M4)"
+ depends on !MMU
+ select ARM_NVIC
+ select AUTO_ZRELADDR
+ select TIMER_OF
+ select COMMON_CLK
+ select CPU_V7M
+ select GENERIC_CLOCKEVENTS
+ select NO_IOPORT_MAP
+ select SPARSE_IRQ
+ select USE_OF
+
+config ARCH_EBSA110
+ bool "EBSA-110"
+ select ARCH_USES_GETTIMEOFFSET
+ select CPU_SA110
+ select ISA
+ select NEED_MACH_IO_H
+ select NEED_MACH_MEMORY_H
+ select NO_IOPORT_MAP
+ 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 ARCH_SPARSEMEM_ENABLE
+ select ARM_AMBA
+ imply ARM_PATCH_PHYS_VIRT
+ select ARM_VIC
+ select AUTO_ZRELADDR
+ select CLKDEV_LOOKUP
+ select CLKSRC_MMIO
+ select CPU_ARM920T
+ select GENERIC_CLOCKEVENTS
+ select GPIOLIB
+ 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 if !MMU
+ 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_NETX
+ bool "Hilscher NetX based"
+ select ARM_VIC
+ select CLKSRC_MMIO
+ select CPU_ARM926T
+ select GENERIC_CLOCKEVENTS
+ help
+ This enables support for systems based on the Hilscher NetX Soc
+
+config ARCH_IOP13XX
+ bool "IOP13xx-based"
+ depends on MMU
+ select CPU_XSC3
+ select NEED_MACH_MEMORY_H
+ select NEED_RET_TO_USER
+ select PCI
+ select PLAT_IOP
+ select VMSPLIT_1G
+ select SPARSE_IRQ
+ help
+ Support for Intel's IOP13XX (XScale) family of processors.
+
+config ARCH_IOP32X
+ bool "IOP32x-based"
+ depends on MMU
+ select CPU_XSCALE
+ select GPIO_IOP
+ select GPIOLIB
+ select NEED_RET_TO_USER
+ select PCI
+ select PLAT_IOP
+ 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 GPIO_IOP
+ select GPIOLIB
+ select NEED_RET_TO_USER
+ select PCI
+ select PLAT_IOP
+ help
+ Support for Intel's IOP33X (XScale) family of processors.
+
+config ARCH_IXP4XX
+ bool "IXP4xx-based"
+ depends on MMU
+ select ARCH_HAS_DMA_SET_COHERENT_MASK
+ select ARCH_SUPPORTS_BIG_ENDIAN
+ select CLKSRC_MMIO
+ select CPU_XSCALE
+ select DMABOUNCE if PCI
+ select GENERIC_CLOCKEVENTS
+ select GPIOLIB
+ select MIGHT_HAVE_PCI
+ select NEED_MACH_IO_H
+ select USB_EHCI_BIG_ENDIAN_DESC
+ select USB_EHCI_BIG_ENDIAN_MMIO
+ help
+ Support for Intel's IXP4XX (XScale) family of processors.
+
+config ARCH_DOVE
+ bool "Marvell Dove"
+ select CPU_PJ4
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_MULTI_HANDLER
+ select GPIOLIB
+ select MIGHT_HAVE_PCI
+ select MVEBU_MBUS
+ select PINCTRL
+ select PINCTRL_DOVE
+ select PLAT_ORION_LEGACY
+ select SPARSE_IRQ
+ select PM_GENERIC_DOMAINS if PM
+ help
+ Support for the Marvell Dove SoC 88AP510
+
+config ARCH_KS8695
+ bool "Micrel/Kendin KS8695"
+ select CLKSRC_MMIO
+ select CPU_ARM922T
+ select GENERIC_CLOCKEVENTS
+ select GPIOLIB
+ 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 CLKDEV_LOOKUP
+ select CLKSRC_MMIO
+ select CPU_ARM926T
+ select GENERIC_CLOCKEVENTS
+ select GPIOLIB
+ 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_LPC32XX
+ bool "NXP LPC32XX"
+ select ARM_AMBA
+ select CLKDEV_LOOKUP
+ select CLKSRC_LPC32XX
+ select COMMON_CLK
+ select CPU_ARM926T
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_MULTI_HANDLER
+ select GPIOLIB
+ select SPARSE_IRQ
+ select USE_OF
+ help
+ Support for the NXP LPC32XX family of processors
+
+config ARCH_PXA
+ bool "PXA2xx/PXA3xx-based"
+ depends on MMU
+ select ARCH_MTD_XIP
+ select ARM_CPU_SUSPEND if PM
+ select AUTO_ZRELADDR
+ select COMMON_CLK
+ select CLKDEV_LOOKUP
+ select CLKSRC_PXA
+ select CLKSRC_MMIO
+ select TIMER_OF
+ select CPU_XSCALE if !CPU_XSC3
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_MULTI_HANDLER
+ select GPIO_PXA
+ select GPIOLIB
+ select HAVE_IDE
+ select IRQ_DOMAIN
+ select PLAT_PXA
+ select SPARSE_IRQ
+ help
+ Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
+
+config ARCH_RPC
+ bool "RiscPC"
+ depends on MMU
+ select ARCH_ACORN
+ select ARCH_MAY_HAVE_PC_FDC
+ select ARCH_SPARSEMEM_ENABLE
+ select ARCH_USES_GETTIMEOFFSET
+ select CPU_SA110
+ select FIQ
+ select HAVE_IDE
+ select HAVE_PATA_PLATFORM
+ select ISA_DMA_API
+ select NEED_MACH_IO_H
+ select NEED_MACH_MEMORY_H
+ select NO_IOPORT_MAP
+ 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 ARCH_MTD_XIP
+ select ARCH_SPARSEMEM_ENABLE
+ select CLKDEV_LOOKUP
+ select CLKSRC_MMIO
+ select CLKSRC_PXA
+ select TIMER_OF if OF
+ select CPU_FREQ
+ select CPU_SA1100
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_MULTI_HANDLER
+ select GPIOLIB
+ select HAVE_IDE
+ select IRQ_DOMAIN
+ select ISA
+ select NEED_MACH_MEMORY_H
+ select SPARSE_IRQ
+ help
+ Support for StrongARM 11x0 based boards.
+
+config ARCH_S3C24XX
+ bool "Samsung S3C24XX SoCs"
+ select ATAGS
+ select CLKDEV_LOOKUP
+ select CLKSRC_SAMSUNG_PWM
+ select GENERIC_CLOCKEVENTS
+ select GPIO_SAMSUNG
+ select GPIOLIB
+ select GENERIC_IRQ_MULTI_HANDLER
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
+ select HAVE_S3C_RTC if RTC_CLASS
+ select NEED_MACH_IO_H
+ select S3C2410_WATCHDOG
+ select SAMSUNG_ATAGS
+ select USE_OF
+ select WATCHDOG
+ 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_DAVINCI
+ bool "TI DaVinci"
+ select ARCH_HAS_HOLES_MEMORYMODEL
+ select COMMON_CLK
+ select CPU_ARM926T
+ select GENERIC_ALLOCATOR
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_CHIP
+ select GPIOLIB
+ select HAVE_IDE
+ select PM_GENERIC_DOMAINS if PM
+ select PM_GENERIC_DOMAINS_OF if PM && OF
+ select REGMAP_MMIO
+ select RESET_CONTROLLER
+ select USE_OF
+ select ZONE_DMA
+ help
+ Support for TI's DaVinci platform.
+
+config ARCH_OMAP1
+ bool "TI OMAP1"
+ depends on MMU
+ select ARCH_HAS_HOLES_MEMORYMODEL
+ select ARCH_OMAP
+ select CLKDEV_LOOKUP
+ select CLKSRC_MMIO
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_IRQ_CHIP
+ select GENERIC_IRQ_MULTI_HANDLER
+ select GPIOLIB
+ select HAVE_IDE
+ select IRQ_DOMAIN
+ select NEED_MACH_IO_H if PCCARD
+ select NEED_MACH_MEMORY_H
+ select SPARSE_IRQ
+ help
+ Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
+
+endchoice
+
+menu "Multiple platform selection"
+ depends on ARCH_MULTIPLATFORM
+
+comment "CPU Core family selection"
+
+config ARCH_MULTI_V4
+ bool "ARMv4 based platforms (FA526)"
+ depends on !ARCH_MULTI_V6_V7
+ select ARCH_MULTI_V4_V5
+ select CPU_FA526
+
+config ARCH_MULTI_V4T
+ bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
+ depends on !ARCH_MULTI_V6_V7
+ select ARCH_MULTI_V4_V5
+ select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
+ CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
+ CPU_ARM925T || CPU_ARM940T)
+
+config ARCH_MULTI_V5
+ bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
+ depends on !ARCH_MULTI_V6_V7
+ select ARCH_MULTI_V4_V5
+ select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
+ CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
+ CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
+
+config ARCH_MULTI_V4_V5
+ bool
+
+config ARCH_MULTI_V6
+ bool "ARMv6 based platforms (ARM11)"
+ select ARCH_MULTI_V6_V7
+ select CPU_V6K
+
+config ARCH_MULTI_V7
+ bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
+ default y
+ select ARCH_MULTI_V6_V7
+ select CPU_V7
+ select HAVE_SMP
+
+config ARCH_MULTI_V6_V7
+ bool
+ select MIGHT_HAVE_CACHE_L2X0
+
+config ARCH_MULTI_CPU_AUTO
+ def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
+ select ARCH_MULTI_V5
+
+endmenu
+
+config ARCH_VIRT
+ bool "Dummy Virtual Machine"
+ depends on ARCH_MULTI_V7
+ select ARM_AMBA
+ select ARM_GIC
+ select ARM_GIC_V2M if PCI
+ select ARM_GIC_V3
+ select ARM_GIC_V3_ITS if PCI
+ select ARM_PSCI
+ select HAVE_ARM_ARCH_TIMER
+
+#
+# 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-actions/Kconfig"
+
+source "arch/arm/mach-alpine/Kconfig"
+
+source "arch/arm/mach-artpec/Kconfig"
+
+source "arch/arm/mach-asm9260/Kconfig"
+
+source "arch/arm/mach-aspeed/Kconfig"
+
+source "arch/arm/mach-at91/Kconfig"
+
+source "arch/arm/mach-axxia/Kconfig"
+
+source "arch/arm/mach-bcm/Kconfig"
+
+source "arch/arm/mach-berlin/Kconfig"
+
+source "arch/arm/mach-clps711x/Kconfig"
+
+source "arch/arm/mach-cns3xxx/Kconfig"
+
+source "arch/arm/mach-davinci/Kconfig"
+
+source "arch/arm/mach-digicolor/Kconfig"
+
+source "arch/arm/mach-dove/Kconfig"
+
+source "arch/arm/mach-ep93xx/Kconfig"
+
+source "arch/arm/mach-exynos/Kconfig"
+source "arch/arm/plat-samsung/Kconfig"
+
+source "arch/arm/mach-footbridge/Kconfig"
+
+source "arch/arm/mach-gemini/Kconfig"
+
+source "arch/arm/mach-highbank/Kconfig"
+
+source "arch/arm/mach-hisi/Kconfig"
+
+source "arch/arm/mach-imx/Kconfig"
+
+source "arch/arm/mach-integrator/Kconfig"
+
+source "arch/arm/mach-iop13xx/Kconfig"
+
+source "arch/arm/mach-iop32x/Kconfig"
+
+source "arch/arm/mach-iop33x/Kconfig"
+
+source "arch/arm/mach-ixp4xx/Kconfig"
+
+source "arch/arm/mach-keystone/Kconfig"
+
+source "arch/arm/mach-ks8695/Kconfig"
+
+source "arch/arm/mach-mediatek/Kconfig"
+
+source "arch/arm/mach-meson/Kconfig"
+
+source "arch/arm/mach-mmp/Kconfig"
+
+source "arch/arm/mach-moxart/Kconfig"
+
+source "arch/arm/mach-mv78xx0/Kconfig"
+
+source "arch/arm/mach-mvebu/Kconfig"
+
+source "arch/arm/mach-mxs/Kconfig"
+
+source "arch/arm/mach-netx/Kconfig"
+
+source "arch/arm/mach-nomadik/Kconfig"
+
+source "arch/arm/mach-npcm/Kconfig"
+
+source "arch/arm/mach-nspire/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-oxnas/Kconfig"
+
+source "arch/arm/mach-picoxcell/Kconfig"
+
+source "arch/arm/mach-prima2/Kconfig"
+
+source "arch/arm/mach-pxa/Kconfig"
+source "arch/arm/plat-pxa/Kconfig"
+
+source "arch/arm/mach-qcom/Kconfig"
+
+source "arch/arm/mach-realview/Kconfig"
+
+source "arch/arm/mach-rockchip/Kconfig"
+
+source "arch/arm/mach-s3c24xx/Kconfig"
+
+source "arch/arm/mach-s3c64xx/Kconfig"
+
+source "arch/arm/mach-s5pv210/Kconfig"
+
+source "arch/arm/mach-sa1100/Kconfig"
+
+source "arch/arm/mach-shmobile/Kconfig"
+
+source "arch/arm/mach-socfpga/Kconfig"
+
+source "arch/arm/mach-spear/Kconfig"
+
+source "arch/arm/mach-sti/Kconfig"
+
+source "arch/arm/mach-stm32/Kconfig"
+
+source "arch/arm/mach-sunxi/Kconfig"
+
+source "arch/arm/mach-tango/Kconfig"
+
+source "arch/arm/mach-tegra/Kconfig"
+
+source "arch/arm/mach-u300/Kconfig"
+
+source "arch/arm/mach-uniphier/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"
+
+source "arch/arm/mach-zx/Kconfig"
+
+source "arch/arm/mach-zynq/Kconfig"
+
+# ARMv7-M architecture
+config ARCH_EFM32
+ bool "Energy Micro efm32"
+ depends on ARM_SINGLE_ARMV7M
+ select GPIOLIB
+ help
+ Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
+ processors.
+
+config ARCH_LPC18XX
+ bool "NXP LPC18xx/LPC43xx"
+ depends on ARM_SINGLE_ARMV7M
+ select ARCH_HAS_RESET_CONTROLLER
+ select ARM_AMBA
+ select CLKSRC_LPC32XX
+ select PINCTRL
+ help
+ Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4
+ high performance microcontrollers.
+
+config ARCH_MPS2
+ bool "ARM MPS2 platform"
+ depends on ARM_SINGLE_ARMV7M
+ select ARM_AMBA
+ select CLKSRC_MPS2
+ help
+ Support for Cortex-M Prototyping System (or V2M-MPS2) which comes
+ with a range of available cores like Cortex-M3/M4/M7.
+
+ Please, note that depends which Application Note is used memory map
+ for the platform may vary, so adjustment of RAM base might be needed.
+
+# Definitions to make life easier
+config ARCH_ACORN
+ bool
+
+config PLAT_IOP
+ bool
+ select GENERIC_CLOCKEVENTS
+
+config PLAT_ORION
+ bool
+ select CLKSRC_MMIO
+ select COMMON_CLK
+ select GENERIC_IRQ_CHIP
+ select IRQ_DOMAIN
+
+config PLAT_ORION_LEGACY
+ bool
+ select PLAT_ORION
+
+config PLAT_PXA
+ bool
+
+config PLAT_VERSATILE
+ bool
+
+source "arch/arm/firmware/Kconfig"
+
+source arch/arm/mm/Kconfig
+
+config IWMMXT
+ bool "Enable iWMMXt support"
+ depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
+ default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
+ help
+ Enable support for iWMMXt context switching at run time if
+ running on a CPU that supports it.
+
+if !MMU
+source "arch/arm/Kconfig-nommu"
+endif
+
+config PJ4B_ERRATA_4742
+ bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
+ depends on CPU_PJ4B && MACH_ARMADA_370
+ default y
+ help
+ When coming out of either a Wait for Interrupt (WFI) or a Wait for
+ Event (WFE) IDLE states, a specific timing sensitivity exists between
+ the retiring WFI/WFE instructions and the newly issued subsequent
+ instructions. This sensitivity can result in a CPU hang scenario.
+ Workaround:
+ The software must insert either a Data Synchronization Barrier (DSB)
+ or Data Memory Barrier (DMB) command immediately after the WFI/WFE
+ instruction
+
+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
+ r1p* 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
+ depends on !ARCH_MULTIPLATFORM
+ 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
+ depends on !ARCH_MULTIPLATFORM
+ 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
+ depends on !ARCH_MULTIPLATFORM
+ 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
+ depends on !ARCH_MULTIPLATFORM
+ 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 ARM_ERRATA_643719
+ bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
+ depends on CPU_V7 && SMP
+ default y
+ help
+ This option enables the workaround for the 643719 Cortex-A9 (prior to
+ r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
+ register returns zero when it should return one. The workaround
+ corrects this value, ensuring cache maintenance operations which use
+ it behave as intended and avoiding data corruption.
+
+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 ARM_ERRATA_743622
+ bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
+ depends on CPU_V7
+ depends on !ARCH_MULTIPLATFORM
+ 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
+ depends on !ARCH_MULTIPLATFORM
+ 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_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
+ 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 ARM_ERRATA_775420
+ bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 775420 Cortex-A9 (r2p2,
+ r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
+ operation aborts with MMU exception, it might cause the processor
+ to deadlock. This workaround puts DSB before executing ISB if
+ an abort may occur on cache maintenance.
+
+config ARM_ERRATA_798181
+ bool "ARM errata: TLBI/DSB failure on Cortex-A15"
+ depends on CPU_V7 && SMP
+ help
+ On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
+ adequately shooting down all use of the old entries. This
+ option enables the Linux kernel workaround for this erratum
+ which sends an IPI to the CPUs that are running the same ASID
+ as the one being invalidated.
+
+config ARM_ERRATA_773022
+ bool "ARM errata: incorrect instructions may be executed from loop buffer"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 773022 Cortex-A15
+ (up to r0p4) erratum. In certain rare sequences of code, the
+ loop buffer may deliver incorrect instructions. This
+ workaround disables the loop buffer to avoid the erratum.
+
+config ARM_ERRATA_818325_852422
+ bool "ARM errata: A12: some seqs of opposed cond code instrs => deadlock or corruption"
+ depends on CPU_V7
+ help
+ This option enables the workaround for:
+ - Cortex-A12 818325: Execution of an UNPREDICTABLE STR or STM
+ instruction might deadlock. Fixed in r0p1.
+ - Cortex-A12 852422: Execution of a sequence of instructions might
+ lead to either a data corruption or a CPU deadlock. Not fixed in
+ any Cortex-A12 cores yet.
+ This workaround for all both errata involves setting bit[12] of the
+ Feature Register. This bit disables an optimisation applied to a
+ sequence of 2 instructions that use opposing condition codes.
+
+config ARM_ERRATA_821420
+ bool "ARM errata: A12: sequence of VMOV to core registers might lead to a dead lock"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 821420 Cortex-A12
+ (all revs) erratum. In very rare timing conditions, a sequence
+ of VMOV to Core registers instructions, for which the second
+ one is in the shadow of a branch or abort, can lead to a
+ deadlock when the VMOV instructions are issued out-of-order.
+
+config ARM_ERRATA_825619
+ bool "ARM errata: A12: DMB NSHST/ISHST mixed ... might cause deadlock"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 825619 Cortex-A12
+ (all revs) erratum. Within rare timing constraints, executing a
+ DMB NSHST or DMB ISHST instruction followed by a mix of Cacheable
+ and Device/Strongly-Ordered loads and stores might cause deadlock
+
+config ARM_ERRATA_852421
+ bool "ARM errata: A17: DMB ST might fail to create order between stores"
+ depends on CPU_V7
+ help
+ This option enables the workaround for the 852421 Cortex-A17
+ (r1p0, r1p1, r1p2) erratum. Under very rare timing conditions,
+ execution of a DMB ST instruction might fail to properly order
+ stores from GroupA and stores from GroupB.
+
+config ARM_ERRATA_852423
+ bool "ARM errata: A17: some seqs of opposed cond code instrs => deadlock or corruption"
+ depends on CPU_V7
+ help
+ This option enables the workaround for:
+ - Cortex-A17 852423: Execution of a sequence of instructions might
+ lead to either a data corruption or a CPU deadlock. Not fixed in
+ any Cortex-A17 cores yet.
+ This is identical to Cortex-A12 erratum 852422. It is a separate
+ config option from the A12 erratum due to the way errata are checked
+ for and handled.
+
+endmenu
+
+source "arch/arm/common/Kconfig"
+
+menu "Bus support"
+
+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 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 "Support for multiple PCI domains"
+ depends on PCI
+ help
+ Enable PCI domains kernel management. Say Y if your machine
+ has a PCI bus hierarchy that requires more than one PCI
+ domain (aka segment) to be correctly managed. Say N otherwise.
+
+ If you don't know what to do here, say N.
+
+config PCI_DOMAINS_GENERIC
+ def_bool PCI_DOMAINS
+
+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
+
+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"
+
+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 || ARM_MPU
+ select IRQ_WORK
+ help
+ This enables support for systems with more than one CPU. If you have
+ a system with only one CPU, say N. If you have a system with more
+ than one CPU, say Y.
+
+ If you say N here, the kernel will run on uni- 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,
+ uniprocessor machines. On a uniprocessor machine, the kernel
+ will run faster if you say N here.
+
+ See also <file:Documentation/x86/i386/IO-APIC.txt>,
+ <file:Documentation/lockup-watchdogs.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"
+ depends on SMP && !XIP_KERNEL && MMU
+ 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_ARCH_TIMER
+ bool "Architected timer support"
+ depends on CPU_V7
+ select ARM_ARCH_TIMER
+ select GENERIC_CLOCKEVENTS
+ help
+ This option enables support for the ARM architected timer
+
+config HAVE_ARM_TWD
+ bool
+ select TIMER_OF if OF
+ help
+ This options enables support for the ARM timer and watchdog unit
+
+config MCPM
+ bool "Multi-Cluster Power Management"
+ depends on CPU_V7 && SMP
+ help
+ This option provides the common power management infrastructure
+ for (multi-)cluster based systems, such as big.LITTLE based
+ systems.
+
+config MCPM_QUAD_CLUSTER
+ bool
+ depends on MCPM
+ help
+ To avoid wasting resources unnecessarily, MCPM only supports up
+ to 2 clusters by default.
+ Platforms with 3 or 4 clusters that use MCPM must select this
+ option to allow the additional clusters to be managed.
+
+config BIG_LITTLE
+ bool "big.LITTLE support (Experimental)"
+ depends on CPU_V7 && SMP
+ select MCPM
+ help
+ This option enables support selections for the big.LITTLE
+ system architecture.
+
+config BL_SWITCHER
+ bool "big.LITTLE switcher support"
+ depends on BIG_LITTLE && MCPM && HOTPLUG_CPU && ARM_GIC
+ select CPU_PM
+ help
+ The big.LITTLE "switcher" provides the core functionality to
+ transparently handle transition between a cluster of A15's
+ and a cluster of A7's in a big.LITTLE system.
+
+config BL_SWITCHER_DUMMY_IF
+ tristate "Simple big.LITTLE switcher user interface"
+ depends on BL_SWITCHER && DEBUG_KERNEL
+ help
+ This is a simple and dummy char dev interface to control
+ the big.LITTLE switcher core code. It is meant for
+ debugging purposes only.
+
+choice
+ prompt "Memory split"
+ depends on MMU
+ 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_3G_OPT
+ depends on !ARM_LPAE
+ bool "3G/1G user/kernel split (for full 1G low memory)"
+ config VMSPLIT_2G
+ bool "2G/2G user/kernel split"
+ config VMSPLIT_1G
+ bool "1G/3G user/kernel split"
+endchoice
+
+config PAGE_OFFSET
+ hex
+ default PHYS_OFFSET if !MMU
+ default 0x40000000 if VMSPLIT_1G
+ default 0x80000000 if VMSPLIT_2G
+ default 0xB0000000 if VMSPLIT_3G_OPT
+ 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"
+ depends on SMP
+ select GENERIC_IRQ_MIGRATION
+ help
+ Say Y here to experiment with turning CPUs off and on. CPUs
+ can be controlled through /sys/devices/system/cpu.
+
+config ARM_PSCI
+ bool "Support for the ARM Power State Coordination Interface (PSCI)"
+ depends on HAVE_ARM_SMCCC
+ select ARM_PSCI_FW
+ help
+ Say Y here if you want Linux to communicate with system firmware
+ implementing the PSCI specification for CPU-centric power
+ management operations described in ARM document number ARM DEN
+ 0022A ("Power State Coordination Interface System Software on
+ ARM processors").
+
+# The GPIO number here must be sorted by descending number. In case of
+# a multiplatform kernel, we just want the highest value required by the
+# selected platforms.
+config ARCH_NR_GPIO
+ int
+ default 2048 if ARCH_SOCFPGA
+ default 1024 if ARCH_BRCMSTB || ARCH_RENESAS || ARCH_TEGRA || \
+ ARCH_ZYNQ
+ default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
+ SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
+ default 416 if ARCH_SUNXI
+ default 392 if ARCH_U8500
+ default 352 if ARCH_VT8500
+ default 288 if ARCH_ROCKCHIP
+ default 264 if MACH_H4700
+ default 0
+ help
+ Maximum number of GPIOs in the system.
+
+ If unsure, leave the default value.
+
+config HZ_FIXED
+ int
+ default 200 if ARCH_EBSA110
+ default 128 if SOC_AT91RM9200
+ default 0
+
+choice
+ depends on HZ_FIXED = 0
+ prompt "Timer frequency"
+
+config HZ_100
+ bool "100 Hz"
+
+config HZ_200
+ bool "200 Hz"
+
+config HZ_250
+ bool "250 Hz"
+
+config HZ_300
+ bool "300 Hz"
+
+config HZ_500
+ bool "500 Hz"
+
+config HZ_1000
+ bool "1000 Hz"
+
+endchoice
+
+config HZ
+ int
+ default HZ_FIXED if HZ_FIXED != 0
+ default 100 if HZ_100
+ default 200 if HZ_200
+ default 250 if HZ_250
+ default 300 if HZ_300
+ default 500 if HZ_500
+ default 1000
+
+config SCHED_HRTICK
+ def_bool HIGH_RES_TIMERS
+
+config THUMB2_KERNEL
+ bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
+ depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
+ default y if CPU_THUMBONLY
+ select ARM_UNWIND
+ help
+ By enabling this option, the kernel will be compiled in
+ Thumb-2 mode.
+
+ 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_PATCH_IDIV
+ bool "Runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()"
+ depends on CPU_32v7 && !XIP_KERNEL
+ default y
+ help
+ The ARM compiler inserts calls to __aeabi_idiv() and
+ __aeabi_uidiv() when it needs to perform division on signed
+ and unsigned integers. Some v7 CPUs have support for the sdiv
+ and udiv instructions that can be used to implement those
+ functions.
+
+ Enabling this option allows the kernel to modify itself to
+ replace the first two instructions of these library functions
+ with the sdiv or udiv plus "bx lr" instructions when the CPU
+ it is running on supports them. Typically this will be faster
+ and less power intensive than running the original library
+ code to do integer division.
+
+config AEABI
+ bool "Use the ARM EABI to compile the kernel" if !CPU_V7 && \
+ !CPU_V7M && !CPU_V6 && !CPU_V6K && !CC_IS_CLANG
+ default CPU_V7 || CPU_V7M || CPU_V6 || CPU_V6K || CC_IS_CLANG
+ 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 && !THUMB2_KERNEL
+ 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.
+
+ The seccomp filter system will not be available when this is
+ selected, since there is no way yet to sensibly distinguish
+ between calling conventions during filtering.
+
+ 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 N.
+
+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 HAVE_GENERIC_GUP
+ def_bool y
+ depends on ARM_LPAE
+
+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" if EXPERT
+ depends on HIGHMEM
+ default y
+ help
+ The VM uses one page of physical memory for each page table.
+ For systems with a lot of processes, this can use a lot of
+ precious low memory, eventually leading to low memory being
+ consumed by page tables. Setting this option will allow
+ user-space 2nd level page tables to reside in high memory.
+
+config CPU_SW_DOMAIN_PAN
+ bool "Enable use of CPU domains to implement privileged no-access"
+ depends on MMU && !ARM_LPAE
+ default y
+ help
+ Increase kernel security by ensuring that normal kernel accesses
+ are unable to access userspace addresses. This can help prevent
+ use-after-free bugs becoming an exploitable privilege escalation
+ by ensuring that magic values (such as LIST_POISON) will always
+ fault when dereferenced.
+
+ CPUs with low-vector mappings use a best-efforts implementation.
+ Their lower 1MB needs to remain accessible for the vectors, but
+ the remainder of userspace will become appropriately inaccessible.
+
+config HW_PERF_EVENTS
+ def_bool y
+ depends on ARM_PMU
+
+config SYS_SUPPORTS_HUGETLBFS
+ def_bool y
+ depends on ARM_LPAE
+
+config HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ def_bool y
+ depends on ARM_LPAE
+
+config ARCH_WANT_GENERAL_HUGETLB
+ def_bool y
+
+config ARM_MODULE_PLTS
+ bool "Use PLTs to allow module memory to spill over into vmalloc area"
+ depends on MODULES
+ default y
+ help
+ Allocate PLTs when loading modules so that jumps and calls whose
+ targets are too far away for their relative offsets to be encoded
+ in the instructions themselves can be bounced via veneers in the
+ module's PLT. This allows modules to be allocated in the generic
+ vmalloc area after the dedicated module memory area has been
+ exhausted. The modules will use slightly more memory, but after
+ rounding up to page size, the actual memory footprint is usually
+ the same.
+
+ Disabling this is usually safe for small single-platform
+ configurations. If unsure, say y.
+
+config FORCE_MAX_ZONEORDER
+ int "Maximum zone order"
+ default "12" if SOC_AM33XX
+ default "9" if SA1111 || ARCH_EFM32
+ 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 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()"
+ depends on MMU
+ 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 PARAVIRT
+ bool "Enable paravirtualization code"
+ help
+ This changes the kernel so it can modify itself when it is run
+ under a hypervisor, potentially improving performance significantly
+ over full virtualization.
+
+config PARAVIRT_TIME_ACCOUNTING
+ bool "Paravirtual steal time accounting"
+ select PARAVIRT
+ default n
+ help
+ Select this option to enable fine granularity task steal time
+ accounting. Time spent executing other tasks in parallel with
+ the current vCPU is discounted from the vCPU power. To account for
+ that, there can be a small performance impact.
+
+ If in doubt, say N here.
+
+config XEN_DOM0
+ def_bool y
+ depends on XEN
+
+config XEN
+ bool "Xen guest support on ARM"
+ depends on ARM && AEABI && OF
+ depends on CPU_V7 && !CPU_V6
+ depends on !GENERIC_ATOMIC64
+ depends on MMU
+ select ARCH_DMA_ADDR_T_64BIT
+ select ARM_PSCI
+ select SWIOTLB
+ select SWIOTLB_XEN
+ select PARAVIRT
+ help
+ Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
+
+endmenu
+
+menu "Boot options"
+
+config USE_OF
+ bool "Flattened Device Tree support"
+ select IRQ_DOMAIN
+ select OF
+ help
+ Include support for flattened device tree machine descriptions.
+
+config ATAGS
+ bool "Support for the traditional ATAGS boot data passing" if USE_OF
+ default y
+ help
+ This is the traditional way of passing data to the kernel at boot
+ time. If you are solely relying on the flattened device tree (or
+ the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
+ to remove ATAGS support from your kernel binary. If unsure,
+ leave this to y.
+
+config DEPRECATED_PARAM_STRUCT
+ bool "Provide old way to pass kernel parameters"
+ depends on ATAGS
+ help
+ This was deprecated in 2001 and announced to live on for 5 years.
+ Some old boot loaders still use this way.
+
+# 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
+ depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
+ help
+ Say Y here if you intend to execute your compressed kernel image
+ (zImage) directly from ROM or flash. If unsure, say N.
+
+config ARM_APPENDED_DTB
+ bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
+ depends on OF
+ 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.
+
+choice
+ prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
+ default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
+
+config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
+ bool "Use bootloader kernel arguments if available"
+ help
+ Uses the command-line options passed by the boot loader instead of
+ the device tree bootargs property. If the boot loader doesn't provide
+ any, the device tree bootargs property will be used.
+
+config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
+ bool "Extend with bootloader kernel arguments"
+ help
+ The command-line arguments provided by the boot loader will be
+ appended to the the device tree bootargs property.
+
+endchoice
+
+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
+ depends on ATAGS
+
+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 !ARM_LPAE && !ARCH_MULTIPLATFORM
+ 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 XIP_DEFLATED_DATA
+ bool "Store kernel .data section compressed in ROM"
+ depends on XIP_KERNEL
+ select ZLIB_INFLATE
+ help
+ Before the kernel is actually executed, its .data section has to be
+ copied to RAM from ROM. This option allows for storing that data
+ in compressed form and decompressed to RAM rather than merely being
+ copied, saving some precious ROM space. A possible drawback is a
+ slightly longer boot delay.
+
+config KEXEC
+ bool "Kexec system call (EXPERIMENTAL)"
+ depends on (!SMP || PM_SLEEP_SMP)
+ depends on MMU
+ select KEXEC_CORE
+ 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.
+
+config ATAGS_PROC
+ bool "Export atags in procfs"
+ depends on ATAGS && 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)"
+ 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"
+ 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.
+
+config EFI_STUB
+ bool
+
+config EFI
+ bool "UEFI runtime support"
+ depends on OF && !CPU_BIG_ENDIAN && MMU && AUTO_ZRELADDR && !XIP_KERNEL
+ select UCS2_STRING
+ select EFI_PARAMS_FROM_FDT
+ select EFI_STUB
+ select EFI_ARMSTUB
+ select EFI_RUNTIME_WRAPPERS
+ ---help---
+ This option provides support for runtime services provided
+ by UEFI firmware (such as non-volatile variables, realtime
+ clock, and platform reset). A UEFI stub is also provided to
+ allow the kernel to be booted as an EFI application. This
+ is only useful for kernels that may run on systems that have
+ UEFI firmware.
+
+config DMI
+ bool "Enable support for SMBIOS (DMI) tables"
+ depends on EFI
+ default y
+ help
+ This enables SMBIOS/DMI feature for systems.
+
+ This option is only useful on systems that have UEFI firmware.
+ However, even with this option, the resultant kernel should
+ continue to boot on existing non-UEFI platforms.
+
+ NOTE: This does *NOT* enable or encourage the use of DMI quirks,
+ i.e., the the practice of identifying the platform via DMI to
+ decide whether certain workarounds for buggy hardware and/or
+ firmware need to be enabled. This would require the DMI subsystem
+ to be enabled much earlier than we do on ARM, which is non-trivial.
+
+endmenu
+
+menu "CPU Power Management"
+
+source "drivers/cpufreq/Kconfig"
+
+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
+ ---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.
+
+config KERNEL_MODE_NEON
+ bool "Support for NEON in kernel mode"
+ depends on NEON && AEABI
+ help
+ Say Y to include support for NEON in kernel mode.
+
+endmenu
+
+menu "Power management options"
+
+source "kernel/power/Kconfig"
+
+config ARCH_SUSPEND_POSSIBLE
+ depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
+ CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
+ def_bool y
+
+config ARM_CPU_SUSPEND
+ def_bool PM_SLEEP || BL_SWITCHER || ARM_PSCI_FW
+ depends on ARCH_SUSPEND_POSSIBLE
+
+config ARCH_HIBERNATION_POSSIBLE
+ bool
+ depends on MMU
+ default y if ARCH_SUSPEND_POSSIBLE
+
+endmenu
+
+source "drivers/firmware/Kconfig"
+
+if CRYPTO
+source "arch/arm/crypto/Kconfig"
+endif
+
+source "arch/arm/kvm/Kconfig"
diff --git a/arch/arm/Kconfig-nommu b/arch/arm/Kconfig-nommu
new file mode 100644
index 000000000..1168a03c8
--- /dev/null
+++ b/arch/arm/Kconfig-nommu
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Kconfig for uClinux(non-paged MM) depend configurations
+# Hyok S. Choi <hyok.choi@samsung.com>
+#
+
+config SET_MEM_PARAM
+ bool "Set flash/sdram size and base addr"
+ help
+ Say Y to manually set the base addresses and sizes.
+ otherwise, the default values are assigned.
+
+config DRAM_BASE
+ hex '(S)DRAM Base Address' if SET_MEM_PARAM
+ default 0x00800000
+
+config DRAM_SIZE
+ hex '(S)DRAM SIZE' if SET_MEM_PARAM
+ default 0x00800000
+
+config FLASH_MEM_BASE
+ hex 'FLASH Base Address' if SET_MEM_PARAM
+ default 0x00400000
+
+config FLASH_SIZE
+ hex 'FLASH Size' if SET_MEM_PARAM
+ default 0x00400000
+
+config PROCESSOR_ID
+ hex 'Hard wire the processor ID'
+ default 0x00007700
+ depends on !(CPU_CP15 || CPU_V7M)
+ help
+ If processor has no CP15 register, this processor ID is
+ used instead of the auto-probing which utilizes the register.
+
+config REMAP_VECTORS_TO_RAM
+ bool 'Install vectors to the beginning of RAM'
+ help
+ The kernel needs to change the hardware exception vectors.
+ In nommu mode, the hardware exception vectors are normally
+ placed at address 0x00000000. However, this region may be
+ occupied by read-only memory depending on H/W design.
+
+ If the region contains read-write memory, say 'n' here.
+
+ If your CPU provides a remap facility which allows the exception
+ vectors to be mapped to writable memory, say 'n' here.
+
+ Otherwise, say 'y' here. In this case, the kernel will require
+ external support to redirect the hardware exception vectors to
+ the writable versions located at DRAM_BASE.
+
+config ARM_MPU
+ bool 'Use the ARM v7 PMSA Compliant MPU'
+ depends on CPU_V7 || CPU_V7M
+ default y if CPU_V7
+ help
+ Some ARM systems without an MMU have instead a Memory Protection
+ Unit (MPU) that defines the type and permissions for regions of
+ memory.
+
+ If your CPU has an MPU then you should choose 'y' here unless you
+ know that you do not want to use the MPU.
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
new file mode 100644
index 000000000..01c760929
--- /dev/null
+++ b/arch/arm/Kconfig.debug
@@ -0,0 +1,1893 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config ARM_PTDUMP_CORE
+ def_bool n
+
+config ARM_PTDUMP_DEBUGFS
+ bool "Export kernel pagetable layout to userspace via debugfs"
+ depends on DEBUG_KERNEL
+ depends on MMU
+ select ARM_PTDUMP_CORE
+ select DEBUG_FS
+ ---help---
+ Say Y here if you want to show the kernel pagetable layout in a
+ debugfs file. This information is only useful for kernel developers
+ who are working in architecture specific areas of the kernel.
+ It is probably not a good idea to enable this feature in a production
+ kernel.
+ If in doubt, say "N"
+
+config DEBUG_WX
+ bool "Warn on W+X mappings at boot"
+ depends on MMU
+ select ARM_PTDUMP_CORE
+ ---help---
+ Generate a warning if any W+X mappings are found at boot.
+
+ This is useful for discovering cases where the kernel is leaving
+ W+X mappings after applying NX, as such mappings are a security risk.
+
+ Look for a message in dmesg output like this:
+
+ arm/mm: Checked W+X mappings: passed, no W+X pages found.
+
+ or like this, if the check failed:
+
+ arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
+
+ Note that even if the check fails, your kernel is possibly
+ still fine, as W+X mappings are not a security hole in
+ themselves, what they do is that they make the exploitation
+ of other unfixed kernel bugs easier.
+
+ There is no runtime or memory usage effect of this option
+ once the kernel has booted up - it's a one time check.
+
+ If in doubt, say "Y".
+
+choice
+ prompt "Choose kernel unwinder"
+ default UNWINDER_ARM if AEABI && !FUNCTION_GRAPH_TRACER
+ default UNWINDER_FRAME_POINTER if !AEABI || FUNCTION_GRAPH_TRACER
+ help
+ This determines which method will be used for unwinding kernel stack
+ traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
+ livepatch, lockdep, and more.
+
+config UNWINDER_FRAME_POINTER
+ bool "Frame pointer unwinder"
+ depends on !THUMB2_KERNEL && !CC_IS_CLANG
+ select ARCH_WANT_FRAME_POINTERS
+ select FRAME_POINTER
+ help
+ This option enables the frame pointer unwinder for unwinding
+ kernel stack traces.
+
+config UNWINDER_ARM
+ bool "ARM EABI stack unwinder"
+ depends on AEABI
+ select ARM_UNWIND
+ help
+ This option enables stack unwinding support in the kernel
+ using the information automatically generated by the
+ compiler. The resulting kernel image is slightly bigger but
+ the performance is not affected. Currently, this feature
+ only works with EABI compilers.
+
+endchoice
+
+config ARM_UNWIND
+ bool
+
+config FRAME_POINTER
+ bool
+
+config OLD_MCOUNT
+ bool
+ depends on FUNCTION_TRACER && FRAME_POINTER
+ default y
+
+config DEBUG_USER
+ bool "Verbose user fault messages"
+ help
+ When a user program crashes due to an exception, the kernel can
+ print a brief message explaining what the problem was. This is
+ sometimes helpful for debugging but serves no purpose on a
+ production system. Most people should say N here.
+
+ In addition, you need to pass user_debug=N on the kernel command
+ line to enable this feature. N consists of the sum of:
+
+ 1 - undefined instruction events
+ 2 - system calls
+ 4 - invalid data aborts
+ 8 - SIGSEGV faults
+ 16 - SIGBUS faults
+
+# These options are only for real kernel hackers who want to get their hands dirty.
+config DEBUG_LL
+ bool "Kernel low-level debugging functions (read help!)"
+ depends on DEBUG_KERNEL
+ help
+ Say Y here to include definitions of printascii, printch, printhex
+ in the kernel. This is helpful if you are debugging code that
+ executes before the console is initialized.
+
+ Note that selecting this option will limit the kernel to a single
+ UART definition, as specified below. Attempting to boot the kernel
+ image on a different platform *will not work*, so this option should
+ not be enabled for kernels that are intended to be portable.
+
+choice
+ prompt "Kernel low-level debugging port"
+ depends on DEBUG_LL
+
+ config DEBUG_ALPINE_UART0
+ bool "Kernel low-level debugging messages via Alpine UART0"
+ depends on ARCH_ALPINE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Alpine based platforms.
+
+ config DEBUG_ASM9260_UART
+ bool "Kernel low-level debugging via asm9260 UART"
+ depends on MACH_ASM9260
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to an UART or USART port on asm9260 based
+ machines.
+
+ DEBUG_UART_PHYS | DEBUG_UART_VIRT
+
+ 0x80000000 | 0xf0000000 | UART0
+ 0x80004000 | 0xf0004000 | UART1
+ 0x80008000 | 0xf0008000 | UART2
+ 0x8000c000 | 0xf000c000 | UART3
+ 0x80010000 | 0xf0010000 | UART4
+ 0x80014000 | 0xf0014000 | UART5
+ 0x80018000 | 0xf0018000 | UART6
+ 0x8001c000 | 0xf001c000 | UART7
+ 0x80020000 | 0xf0020000 | UART8
+ 0x80024000 | 0xf0024000 | UART9
+
+ config DEBUG_AT91_RM9200_DBGU
+ bool "Kernel low-level debugging on AT91RM9200, AT91SAM9 DBGU"
+ select DEBUG_AT91_UART
+ depends on SOC_AT91RM9200 || SOC_AT91SAM9
+ help
+ Say Y here if you want kernel low-level debugging support
+ on the DBGU port of:
+ at91rm9200, at91sam9260, at91sam9g20, at91sam9261,
+ at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5
+
+ config DEBUG_AT91_SAM9263_DBGU
+ bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU"
+ select DEBUG_AT91_UART
+ depends on SOC_AT91SAM9 || SOC_SAMA5D3
+ help
+ Say Y here if you want kernel low-level debugging support
+ on the DBGU port of:
+ at91sam9263, at91sam9g45, at91sam9m10,
+ sama5d3
+
+ config DEBUG_AT91_SAMA5D2_UART1
+ bool "Kernel low-level debugging on SAMA5D2 UART1"
+ select DEBUG_AT91_UART
+ depends on SOC_SAMA5D2
+ help
+ Say Y here if you want kernel low-level debugging support
+ on the UART1 port of sama5d2.
+
+ config DEBUG_AT91_SAMA5D4_USART3
+ bool "Kernel low-level debugging on SAMA5D4 USART3"
+ select DEBUG_AT91_UART
+ depends on SOC_SAMA5D4
+ help
+ Say Y here if you want kernel low-level debugging support
+ on the USART3 port of sama5d4.
+
+ config DEBUG_AT91_SAMV7_USART1
+ bool "Kernel low-level debugging via SAMV7 USART1"
+ select DEBUG_AT91_UART
+ depends on SOC_SAMV7
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the USART1 port on SAMV7 based
+ machines.
+
+ config DEBUG_BCM2835
+ bool "Kernel low-level debugging on BCM2835 PL011 UART"
+ depends on ARCH_BCM2835 && ARCH_MULTI_V6
+ select DEBUG_UART_PL01X
+
+ config DEBUG_BCM2836
+ bool "Kernel low-level debugging on BCM2836 PL011 UART"
+ depends on ARCH_BCM2835 && ARCH_MULTI_V7
+ select DEBUG_UART_PL01X
+
+ config DEBUG_BCM_5301X
+ bool "Kernel low-level debugging on BCM5301X/NSP UART1"
+ depends on ARCH_BCM_5301X || ARCH_BCM_NSP
+ select DEBUG_UART_8250
+
+ config DEBUG_BCM_HR2
+ bool "Kernel low-level debugging on Hurricane 2 UART2"
+ depends on ARCH_BCM_HR2
+ select DEBUG_UART_8250
+
+ config DEBUG_BCM_IPROC_UART3
+ bool "Kernel low-level debugging on BCM IPROC UART3"
+ depends on ARCH_BCM_CYGNUS
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the third serial port on these devices.
+
+ config DEBUG_BCM_KONA_UART
+ bool "Kernel low-level debugging messages via BCM KONA UART"
+ depends on ARCH_BCM_MOBILE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Broadcom SoC platforms.
+ This low level debug works for Broadcom
+ mobile SoCs in the Kona family of chips (e.g. bcm28155,
+ bcm11351, etc...)
+
+ config DEBUG_BCM63XX_UART
+ bool "Kernel low-level debugging on BCM63XX UART"
+ depends on ARCH_BCM_63XX
+
+ config DEBUG_BERLIN_UART
+ bool "Marvell Berlin SoC Debug UART"
+ depends on ARCH_BERLIN
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Marvell Berlin SoC based platforms.
+
+ config DEBUG_BRCMSTB_UART
+ bool "Use BRCMSTB UART for low-level debug"
+ depends on ARCH_BRCMSTB
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the first serial port on these devices. The
+ UART physical and virtual address is automatically provided
+ based on the chip identification register value.
+
+ If you have a Broadcom STB chip and would like early print
+ messages to appear over the UART, select this option.
+
+ config DEBUG_CLPS711X_UART1
+ bool "Kernel low-level debugging messages via UART1"
+ depends on ARCH_CLPS711X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the first serial port on these devices.
+
+ config DEBUG_CLPS711X_UART2
+ bool "Kernel low-level debugging messages via UART2"
+ depends on ARCH_CLPS711X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the second serial port on these devices.
+
+ config DEBUG_CNS3XXX
+ bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
+ depends on ARCH_CNS3XXX
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the CNS3xxx UART0.
+
+ config DEBUG_DAVINCI_DA8XX_UART1
+ bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
+ depends on ARCH_DAVINCI_DA8XX
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART1 serial port on DaVinci DA8XX devices.
+
+ config DEBUG_DAVINCI_DA8XX_UART2
+ bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
+ depends on ARCH_DAVINCI_DA8XX
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART2 serial port on DaVinci DA8XX devices.
+
+ config DEBUG_DAVINCI_DMx_UART0
+ bool "Kernel low-level debugging on DaVinci DMx using UART0"
+ depends on ARCH_DAVINCI_DMx
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART0 serial port on DaVinci DMx devices.
+
+ config DEBUG_DC21285_PORT
+ bool "Kernel low-level debugging messages via footbridge serial port"
+ depends on FOOTBRIDGE
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the serial port in the DC21285 (Footbridge).
+
+ config DEBUG_DIGICOLOR_UA0
+ bool "Kernel low-level debugging messages via Digicolor UA0"
+ depends on ARCH_DIGICOLOR
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the UA0 serial port in the CX92755.
+
+ config DEBUG_EP93XX
+ bool "Kernel low-level debugging messages via ep93xx UART"
+ depends on ARCH_EP93XX
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Cirrus Logic EP93xx based platforms.
+
+ config DEBUG_FOOTBRIDGE_COM1
+ bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
+ depends on FOOTBRIDGE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the 8250 at PCI COM1.
+
+ config DEBUG_GEMINI
+ bool "Kernel low-level debugging messages via Cortina Systems Gemini UART"
+ depends on ARCH_GEMINI
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Cortina Gemini based platforms.
+
+ config DEBUG_HI3620_UART
+ bool "Hisilicon HI3620 Debug UART"
+ depends on ARCH_HI3xxx
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on HI3620 UART.
+
+ config DEBUG_HIGHBANK_UART
+ bool "Kernel low-level debugging messages via Highbank UART"
+ depends on ARCH_HIGHBANK
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the UART on Highbank based devices.
+
+ config DEBUG_HIP01_UART
+ bool "Hisilicon Hip01 Debug UART"
+ depends on ARCH_HIP01
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on HIP01 UART.
+
+ config DEBUG_HIP04_UART
+ bool "Hisilicon HiP04 Debug UART"
+ depends on ARCH_HIP04
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on HIP04 UART.
+
+ config DEBUG_HIX5HD2_UART
+ bool "Hisilicon Hix5hd2 Debug UART"
+ depends on ARCH_HIX5HD2
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Hix5hd2 UART.
+
+ config DEBUG_IMX1_UART
+ bool "i.MX1 Debug UART"
+ depends on SOC_IMX1
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX1.
+
+ config DEBUG_IMX23_UART
+ bool "i.MX23 Debug UART"
+ depends on SOC_IMX23
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX23.
+
+ config DEBUG_IMX25_UART
+ bool "i.MX25 Debug UART"
+ depends on SOC_IMX25
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX25.
+
+ config DEBUG_IMX21_IMX27_UART
+ bool "i.MX21 and i.MX27 Debug UART"
+ depends on SOC_IMX21 || SOC_IMX27
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX21 or i.MX27.
+
+ config DEBUG_IMX28_UART
+ bool "i.MX28 Debug UART"
+ depends on SOC_IMX28
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX28.
+
+ config DEBUG_IMX31_UART
+ bool "i.MX31 Debug UART"
+ depends on SOC_IMX31
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX31.
+
+ config DEBUG_IMX35_UART
+ bool "i.MX35 Debug UART"
+ depends on SOC_IMX35
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX35.
+
+ config DEBUG_IMX50_UART
+ bool "i.MX50 Debug UART"
+ depends on SOC_IMX50
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX50.
+
+ config DEBUG_IMX51_UART
+ bool "i.MX51 Debug UART"
+ depends on SOC_IMX51
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX51.
+
+ config DEBUG_IMX53_UART
+ bool "i.MX53 Debug UART"
+ depends on SOC_IMX53
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX53.
+
+ config DEBUG_IMX6Q_UART
+ bool "i.MX6Q/DL Debug UART"
+ depends on SOC_IMX6Q
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX6Q/DL.
+
+ config DEBUG_IMX6SL_UART
+ bool "i.MX6SL Debug UART"
+ depends on SOC_IMX6SL
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX6SL.
+
+ config DEBUG_IMX6SX_UART
+ bool "i.MX6SX Debug UART"
+ depends on SOC_IMX6SX
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX6SX.
+
+ config DEBUG_IMX6UL_UART
+ bool "i.MX6UL Debug UART"
+ depends on SOC_IMX6UL
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX6UL.
+
+ config DEBUG_IMX7D_UART
+ bool "i.MX7D Debug UART"
+ depends on SOC_IMX7D
+ help
+ Say Y here if you want kernel low-level debugging support
+ on i.MX7D.
+
+ config DEBUG_INTEGRATOR
+ bool "Kernel low-level debugging messages via ARM Integrator UART"
+ depends on ARCH_INTEGRATOR
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on ARM Integrator platforms.
+
+ config DEBUG_KEYSTONE_UART0
+ bool "Kernel low-level debugging on KEYSTONE2 using UART0"
+ depends on ARCH_KEYSTONE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART0 serial port on KEYSTONE2 devices.
+
+ config DEBUG_KEYSTONE_UART1
+ bool "Kernel low-level debugging on KEYSTONE2 using UART1"
+ depends on ARCH_KEYSTONE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART1 serial port on KEYSTONE2 devices.
+
+ config DEBUG_KS8695_UART
+ bool "KS8695 Debug UART"
+ depends on ARCH_KS8695
+ help
+ Say Y here if you want kernel low-level debugging support
+ on KS8695.
+
+ config DEBUG_LPC18XX_UART0
+ bool "Kernel low-level debugging via LPC18xx/43xx UART0"
+ depends on ARCH_LPC18XX
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on NXP LPC18xx/43xx UART0.
+
+ config DEBUG_LPC32XX
+ bool "Kernel low-level debugging messages via NXP LPC32xx UART"
+ depends on ARCH_LPC32XX
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on NXP LPC32xx based platforms.
+
+ config DEBUG_MESON_UARTAO
+ bool "Kernel low-level debugging via Meson6 UARTAO"
+ depends on ARCH_MESON
+ help
+ Say Y here if you want kernel low-lever debugging support
+ on Amlogic Meson6 based platforms on the UARTAO.
+
+ config DEBUG_MMP_UART2
+ bool "Kernel low-level debugging message via MMP UART2"
+ depends on ARCH_MMP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MMP UART2.
+
+ config DEBUG_MMP_UART3
+ bool "Kernel low-level debugging message via MMP UART3"
+ depends on ARCH_MMP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MMP UART3.
+
+ config DEBUG_MVEBU_UART0
+ bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)"
+ depends on ARCH_MVEBU
+ depends on ARCH_MVEBU && CPU_V7
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MVEBU based platforms on UART0.
+
+ This option should be used with the old bootloaders
+ that left the internal registers mapped at
+ 0xd0000000. As of today, this is the case on
+ platforms such as the Globalscale Mirabox or the
+ Plathome OpenBlocks AX3, when using the original
+ bootloader.
+
+ This option will not work on older Marvell platforms
+ (Kirkwood, Dove, MV78xx0, Orion5x), which should pick
+ the "new bootloader" variant.
+
+ If the wrong DEBUG_MVEBU_UART* option is selected,
+ when u-boot hands over to the kernel, the system
+ silently crashes, with no serial output at all.
+
+ config DEBUG_MVEBU_UART0_ALTERNATE
+ bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)"
+ depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MVEBU based platforms on UART0. (Armada XP, Armada 3xx,
+ Kirkwood, Dove, MV78xx0, Orion5x).
+
+
+ This option should be used with the new bootloaders
+ that remap the internal registers at 0xf1000000.
+
+ If the wrong DEBUG_MVEBU_UART* option is selected,
+ when u-boot hands over to the kernel, the system
+ silently crashes, with no serial output at all.
+
+ config DEBUG_MVEBU_UART1_ALTERNATE
+ bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
+ depends on ARCH_MVEBU
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MVEBU based platforms on UART1. (Armada XP, Armada 3xx,
+ Kirkwood, Dove, MV78xx0, Orion5x).
+
+ This option should be used with the new bootloaders
+ that remap the internal registers at 0xf1000000.
+ All of the older (pre Armada XP/370) platforms also use
+ this address, regardless of the boot loader version.
+
+ If the wrong DEBUG_MVEBU_UART* option is selected,
+ when u-boot hands over to the kernel, the system
+ silently crashes, with no serial output at all.
+
+ config DEBUG_MT6589_UART0
+ bool "Mediatek mt6589 UART0"
+ depends on ARCH_MEDIATEK
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ for Mediatek mt6589 based platforms on UART0.
+
+ config DEBUG_MT8127_UART0
+ bool "Mediatek mt8127/mt6592 UART0"
+ depends on ARCH_MEDIATEK
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ for Mediatek mt8127 based platforms on UART0.
+
+ config DEBUG_MT8135_UART3
+ bool "Mediatek mt8135 UART3"
+ depends on ARCH_MEDIATEK
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ for Mediatek mt8135 based platforms on UART3.
+
+ config DEBUG_NETX_UART
+ bool "Kernel low-level debugging messages via NetX UART"
+ depends on ARCH_NETX
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Hilscher NetX based platforms.
+
+ config DEBUG_NOMADIK_UART
+ bool "Kernel low-level debugging messages via NOMADIK UART"
+ depends on ARCH_NOMADIK
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on NOMADIK based platforms.
+
+ config DEBUG_NSPIRE_CLASSIC_UART
+ bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
+ depends on ARCH_NSPIRE
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on TI-NSPIRE classic models.
+
+ config DEBUG_NSPIRE_CX_UART
+ bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
+ depends on ARCH_NSPIRE
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on TI-NSPIRE CX models.
+
+ config DEBUG_OMAP1UART1
+ bool "Kernel low-level debugging via OMAP1 UART1"
+ depends on ARCH_OMAP1
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP1 based platforms (except OMAP730) on the UART1.
+
+ config DEBUG_OMAP1UART2
+ bool "Kernel low-level debugging via OMAP1 UART2"
+ depends on ARCH_OMAP1
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP1 based platforms (except OMAP730) on the UART2.
+
+ config DEBUG_OMAP1UART3
+ bool "Kernel low-level debugging via OMAP1 UART3"
+ depends on ARCH_OMAP1
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP1 based platforms (except OMAP730) on the UART3.
+
+ config DEBUG_OMAP2UART1
+ bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+ help
+ This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
+ omap3 torpedo and 3530 lv som.
+
+ config DEBUG_OMAP2UART2
+ bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_OMAP2UART3
+ bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_OMAP3UART3
+ bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+ help
+ This covers at least cm_t3x, beagle, crane, devkit8000,
+ igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
+ and 3517evm.
+
+ config DEBUG_OMAP4UART3
+ bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_OMAP3UART4
+ bool "Kernel low-level debugging messages via OMAP36XX UART4"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_OMAP4UART4
+ bool "Kernel low-level debugging messages via OMAP4/5 UART4"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_OMAP7XXUART1
+ bool "Kernel low-level debugging via OMAP730 UART1"
+ depends on ARCH_OMAP730
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP730 based platforms on the UART1.
+
+ config DEBUG_OMAP7XXUART2
+ bool "Kernel low-level debugging via OMAP730 UART2"
+ depends on ARCH_OMAP730
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP730 based platforms on the UART2.
+
+ config DEBUG_OMAP7XXUART3
+ bool "Kernel low-level debugging via OMAP730 UART3"
+ depends on ARCH_OMAP730
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on OMAP730 based platforms on the UART3.
+
+ config DEBUG_TI81XXUART1
+ bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_TI81XXUART2
+ bool "Kernel low-level debugging messages via TI81XX UART2"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_TI81XXUART3
+ bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_AM33XXUART1
+ bool "Kernel low-level debugging messages via AM33XX UART1"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_UART_8250
+
+ config DEBUG_ZOOM_UART
+ bool "Kernel low-level debugging messages via Zoom2/3 UART"
+ depends on ARCH_OMAP2PLUS
+ select DEBUG_OMAP2PLUS_UART
+
+ config DEBUG_PICOXCELL_UART
+ depends on ARCH_PICOXCELL
+ bool "Use PicoXcell UART for low-level debug"
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on PicoXcell based platforms.
+
+ config DEBUG_PXA_UART1
+ depends on ARCH_PXA
+ bool "Use PXA UART1 for low-level debug"
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on PXA UART1.
+
+ config DEBUG_QCOM_UARTDM
+ bool "Kernel low-level debugging messages via QCOM UARTDM"
+ depends on ARCH_QCOM
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the serial port on Qualcomm devices.
+
+ ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
+ APQ8064 0x16640000 0xf0040000
+ APQ8084 0xf995e000 0xfa75e000
+ IPQ4019 0x078af000 0xf78af000
+ MSM8X60 0x19c40000 0xf0040000
+ MSM8960 0x16440000 0xf0040000
+ MSM8974 0xf991e000 0xfa71e000
+
+ Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration
+ options based on your needs.
+
+ config DEBUG_REALVIEW_STD_PORT
+ bool "RealView Default UART"
+ depends on ARCH_REALVIEW
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the serial port on RealView EB, PB11MP, PBA8
+ and PBX platforms.
+
+ config DEBUG_REALVIEW_PB1176_PORT
+ bool "RealView PB1176 UART"
+ depends on MACH_REALVIEW_PB1176
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the standard serial port on the RealView
+ PB1176 platform.
+
+ config DEBUG_RV1108_UART0
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
+ config DEBUG_RV1108_UART1
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
+ config DEBUG_RV1108_UART2
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
+ config DEBUG_RK29_UART0
+ bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK29_UART1
+ bool "Kernel low-level debugging messages via Rockchip RK29 UART1"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK29_UART2
+ bool "Kernel low-level debugging messages via Rockchip RK29 UART2"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK3X_UART0
+ bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK3X_UART1
+ bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK3X_UART2
+ bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK3X_UART3
+ bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip based platforms.
+
+ config DEBUG_RK32_UART2
+ bool "Kernel low-level debugging messages via Rockchip RK32 UART2"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RK32xx based platforms.
+
+ config DEBUG_R7S72100_SCIF2
+ bool "Kernel low-level debugging messages via SCIF2 on R7S72100"
+ depends on ARCH_R7S72100
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF2 on Renesas RZ/A1H (R7S72100).
+
+ config DEBUG_RCAR_GEN1_SCIF0
+ bool "Kernel low-level debugging messages via SCIF0 on R8A7778"
+ depends on ARCH_R8A7778
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF0 on Renesas R-Car M1A (R8A7778).
+
+ config DEBUG_RCAR_GEN1_SCIF2
+ bool "Kernel low-level debugging messages via SCIF2 on R8A7779"
+ depends on ARCH_R8A7779
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF2 on Renesas R-Car H1 (R8A7779).
+
+ config DEBUG_RCAR_GEN2_SCIF0
+ bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
+ depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \
+ ARCH_R8A7792 || ARCH_R8A7793
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790),
+ M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
+
+ config DEBUG_RCAR_GEN2_SCIF1
+ bool "Kernel low-level debugging messages via SCIF1 on R8A77470"
+ depends on ARCH_R8A77470
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF1 on Renesas RZ/G1C (R8A77470).
+
+ config DEBUG_RCAR_GEN2_SCIF2
+ bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
+ depends on ARCH_R8A7794
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF2 on Renesas R-Car E2 (R8A7794).
+
+ config DEBUG_RCAR_GEN2_SCIF4
+ bool "Kernel low-level debugging messages via SCIF4 on R8A7745"
+ depends on ARCH_R8A7745
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIF4 on Renesas RZ/G1E (R8A7745).
+
+ config DEBUG_RMOBILE_SCIFA0
+ bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4"
+ depends on ARCH_R8A73A4
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
+
+ config DEBUG_RMOBILE_SCIFA1
+ bool "Kernel low-level debugging messages via SCIFA1 on R8A7740"
+ depends on ARCH_R8A7740
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
+
+ config DEBUG_RMOBILE_SCIFA4
+ bool "Kernel low-level debugging messages via SCIFA4 on SH73A0"
+ depends on ARCH_SH73A0
+ help
+ Say Y here if you want kernel low-level debugging support
+ via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
+
+ config DEBUG_S3C_UART0
+ depends on PLAT_SAMSUNG
+ select DEBUG_EXYNOS_UART if ARCH_EXYNOS
+ select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+ select DEBUG_S3C64XX_UART if ARCH_S3C64XX
+ select DEBUG_S5PV210_UART if ARCH_S5PV210
+ bool "Use Samsung S3C UART 0 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 0. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C_UART1
+ depends on PLAT_SAMSUNG
+ select DEBUG_EXYNOS_UART if ARCH_EXYNOS
+ select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+ select DEBUG_S3C64XX_UART if ARCH_S3C64XX
+ select DEBUG_S5PV210_UART if ARCH_S5PV210
+ bool "Use Samsung S3C UART 1 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 1. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C_UART2
+ depends on PLAT_SAMSUNG
+ select DEBUG_EXYNOS_UART if ARCH_EXYNOS
+ select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+ select DEBUG_S3C64XX_UART if ARCH_S3C64XX
+ select DEBUG_S5PV210_UART if ARCH_S5PV210
+ bool "Use Samsung S3C UART 2 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 2. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C_UART3
+ depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
+ select DEBUG_EXYNOS_UART if ARCH_EXYNOS
+ select DEBUG_S3C64XX_UART if ARCH_S3C64XX
+ select DEBUG_S5PV210_UART if ARCH_S5PV210
+ bool "Use Samsung S3C UART 3 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 3. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C2410_UART0
+ depends on ARCH_S3C24XX
+ select DEBUG_S3C2410_UART
+ bool "Use S3C2410/S3C2412 UART 0 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 0. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C2410_UART1
+ depends on ARCH_S3C24XX
+ select DEBUG_S3C2410_UART
+ bool "Use S3C2410/S3C2412 UART 1 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 1. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_S3C2410_UART2
+ depends on ARCH_S3C24XX
+ select DEBUG_S3C2410_UART
+ bool "Use S3C2410/S3C2412 UART 2 for low-level debug"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART 2. The port must have been initialised
+ by the boot-loader before use.
+
+ config DEBUG_SA1100
+ depends on ARCH_SA1100
+ bool "Use SA1100 UARTs for low-level debug"
+ help
+ Say Y here if you want kernel low-level debugging support
+ on SA-11x0 UART ports. The kernel will check for the first
+ enabled UART in a sequence 3-1-2.
+
+ config DEBUG_SOCFPGA_UART0
+ depends on ARCH_SOCFPGA
+ bool "Use SOCFPGA UART0 for low-level debug"
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
+
+ config DEBUG_SOCFPGA_ARRIA10_UART1
+ depends on ARCH_SOCFPGA
+ bool "Use SOCFPGA Arria10 UART1 for low-level debug"
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on SOCFPGA(Arria 10) based platforms.
+
+ config DEBUG_SOCFPGA_CYCLONE5_UART1
+ depends on ARCH_SOCFPGA
+ bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug"
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
+
+ config DEBUG_SUN9I_UART0
+ bool "Kernel low-level debugging messages via sun9i UART0"
+ depends on MACH_SUN9I
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Allwinner A80 based platforms on the UART0.
+
+ config DEBUG_SUNXI_UART0
+ bool "Kernel low-level debugging messages via sunXi UART0"
+ depends on ARCH_SUNXI
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Allwinner A1X based platforms on the UART0.
+
+ config DEBUG_SUNXI_UART1
+ bool "Kernel low-level debugging messages via sunXi UART1"
+ depends on ARCH_SUNXI
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Allwinner A1X based platforms on the UART1.
+
+ config DEBUG_SUNXI_R_UART
+ bool "Kernel low-level debugging messages via sunXi R_UART"
+ depends on MACH_SUN6I || MACH_SUN8I
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Allwinner A31/A23 based platforms on the R_UART.
+
+ config DEBUG_SIRFPRIMA2_UART1
+ bool "Kernel low-level debugging messages via SiRFprimaII UART1"
+ depends on ARCH_PRIMA2
+ select DEBUG_SIRFSOC_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart1 port on SiRFprimaII devices.
+
+ config DEBUG_SIRFATLAS7_UART0
+ bool "Kernel low-level debugging messages via SiRFatlas7 UART0"
+ depends on ARCH_ATLAS7
+ select DEBUG_SIRFSOC_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart0 port on SiRFATLAS7 devices.The uart0
+ is used on SiRFATLAS7 as a extra debug port.sometimes an extra
+ debug port can be very useful.
+
+ config DEBUG_SIRFATLAS7_UART1
+ bool "Kernel low-level debugging messages via SiRFatlas7 UART1"
+ depends on ARCH_ATLAS7
+ select DEBUG_SIRFSOC_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart1 port on SiRFATLAS7 devices.
+
+ config DEBUG_SPEAR3XX
+ bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART"
+ depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on ST SPEAr based platforms.
+
+ config DEBUG_SPEAR13XX
+ bool "Kernel low-level debugging messages via ST SPEAr 13xx UART"
+ depends on ARCH_SPEAR13XX
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on ST SPEAr13xx based platforms.
+
+ config STIH41X_DEBUG_ASC2
+ bool "Use StiH415/416 ASC2 UART for low-level debug"
+ depends on ARCH_STI
+ select DEBUG_STI_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on STiH415/416 based platforms like b2000, which has
+ default UART wired up to ASC2.
+
+ If unsure, say N.
+
+ config STIH41X_DEBUG_SBC_ASC1
+ bool "Use StiH415/416 SBC ASC1 UART for low-level debug"
+ depends on ARCH_STI
+ select DEBUG_STI_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on STiH415/416 based platforms like b2020. which has
+ default UART wired up to SBC ASC1.
+
+ If unsure, say N.
+
+ config TEGRA_DEBUG_UART_AUTO_ODMDATA
+ bool "Kernel low-level debugging messages via Tegra UART via ODMDATA"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Automatically determines which UART to use for low-level
+ debug based on the ODMDATA value. This value is part of
+ the BCT, and is written to the boot memory device using
+ nvflash, or other flashing tool. When bits 19:18 are 3,
+ then bits 17:15 indicate which UART to use; 0/1/2/3/4
+ are UART A/B/C/D/E.
+
+ config TEGRA_DEBUG_UARTA
+ bool "Kernel low-level debugging messages via Tegra UART A"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Tegra based platforms.
+
+ config TEGRA_DEBUG_UARTB
+ bool "Kernel low-level debugging messages via Tegra UART B"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Tegra based platforms.
+
+ config TEGRA_DEBUG_UARTC
+ bool "Kernel low-level debugging messages via Tegra UART C"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Tegra based platforms.
+
+ config TEGRA_DEBUG_UARTD
+ bool "Kernel low-level debugging messages via Tegra UART D"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Tegra based platforms.
+
+ config TEGRA_DEBUG_UARTE
+ bool "Kernel low-level debugging messages via Tegra UART E"
+ depends on ARCH_TEGRA
+ select DEBUG_TEGRA_UART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Tegra based platforms.
+
+ config DEBUG_U300_UART
+ bool "Kernel low-level debugging messages via U300 UART0"
+ depends on ARCH_U300
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the uart port on U300 devices.
+
+ config DEBUG_UX500_UART
+ depends on ARCH_U8500
+ bool "Use Ux500 UART for low-level debug"
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Ux500 based platforms.
+
+ config DEBUG_VERSATILE
+ bool "Kernel low-level debugging messages via ARM Versatile UART"
+ depends on ARCH_VERSATILE
+ select DEBUG_UART_PL01X
+ help
+ Say Y here if you want kernel low-level debugging support
+ on ARM Versatile platforms.
+
+ config DEBUG_VEXPRESS_UART0_DETECT
+ bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
+ depends on ARCH_VEXPRESS && CPU_CP15_MMU
+ help
+ This option enables a simple heuristic which tries to determine
+ the motherboard's memory map variant (original or RS1) and then
+ choose the relevant UART0 base address.
+
+ Note that this will only work with standard A-class core tiles,
+ and may fail with non-standard SMM or custom software models.
+
+ config DEBUG_VEXPRESS_UART0_CA9
+ bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
+ depends on ARCH_VEXPRESS
+ select DEBUG_UART_PL01X
+ help
+ This option selects UART0 at 0x10009000. Except for custom models,
+ this applies only to the V2P-CA9 tile.
+
+ config DEBUG_VEXPRESS_UART0_RS1
+ bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
+ depends on ARCH_VEXPRESS
+ select DEBUG_UART_PL01X
+ help
+ This option selects UART0 at 0x1c090000. This applies to most
+ of the tiles using the RS1 memory map, including all new A-class
+ core tiles, FPGA-based SMMs and software models.
+
+ config DEBUG_VEXPRESS_UART0_CRX
+ bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
+ depends on ARCH_VEXPRESS && !MMU
+ select DEBUG_UART_PL01X
+ help
+ This option selects UART0 at 0xb0090000. This is appropriate for
+ Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
+
+ config DEBUG_VF_UART
+ bool "Vybrid UART"
+ depends on SOC_VF610
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Vybrid based platforms.
+
+ config DEBUG_VT8500_UART0
+ bool "Use UART0 on VIA/Wondermedia SoCs"
+ depends on ARCH_VT8500
+ help
+ This option selects UART0 on VIA/Wondermedia System-on-a-chip
+ devices, including VT8500, WM8505, WM8650 and WM8850.
+
+ config DEBUG_ZTE_ZX
+ bool "Use ZTE ZX UART"
+ select DEBUG_UART_PL01X
+ depends on ARCH_ZX
+ help
+ Say Y here if you are enabling ZTE ZX296702 SOC and need
+ debug uart support.
+
+ This option is preferred over the platform specific
+ options; the platform specific options are deprecated
+ and will be soon removed.
+
+ config DEBUG_ZYNQ_UART0
+ bool "Kernel low-level debugging on Xilinx Zynq using UART0"
+ depends on ARCH_ZYNQ
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART0 on the Zynq platform.
+
+ config DEBUG_ZYNQ_UART1
+ bool "Kernel low-level debugging on Xilinx Zynq using UART1"
+ depends on ARCH_ZYNQ
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to UART1 on the Zynq platform.
+
+ If you have a ZC702 board and want early boot messages to
+ appear on the USB serial adaptor, select this option.
+
+ config DEBUG_ICEDCC
+ bool "Kernel low-level debugging via EmbeddedICE DCC channel"
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the EmbeddedICE macrocell's DCC channel using
+ co-processor 14. This is known to work on the ARM9 style ICE
+ channel and on the XScale with the PEEDI.
+
+ Note that the system will appear to hang during boot if there
+ is nothing connected to read from the DCC.
+
+ config DEBUG_SEMIHOSTING
+ bool "Kernel low-level debug output via semihosting I/O"
+ help
+ Semihosting enables code running on an ARM target to use
+ the I/O facilities on a host debugger/emulator through a
+ simple SVC call. The host debugger or emulator must have
+ semihosting enabled for the special svc call to be trapped
+ otherwise the kernel will crash.
+
+ This is known to work with OpenOCD, as well as
+ ARM's Fast Models, or any other controlling environment
+ that implements semihosting.
+
+ For more details about semihosting, please see
+ chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
+
+ config DEBUG_LL_UART_8250
+ bool "Kernel low-level debugging via 8250 UART"
+ help
+ Say Y here if you wish the debug print routes to direct
+ their output to an 8250 UART. You can use this option
+ to provide the parameters for the 8250 UART rather than
+ selecting one of the platform specific options above if
+ you know the parameters for the port.
+
+ This option is preferred over the platform specific
+ options; the platform specific options are deprecated
+ and will be soon removed.
+
+ config DEBUG_LL_UART_EFM32
+ bool "Kernel low-level debugging via efm32 UART"
+ depends on ARCH_EFM32
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to an UART or USART port on efm32 based
+ machines. Use the following addresses for DEBUG_UART_PHYS:
+
+ 0x4000c000 | USART0
+ 0x4000c400 | USART1
+ 0x4000c800 | USART2
+ 0x4000e000 | UART0
+ 0x4000e400 | UART1
+
+ config DEBUG_LL_UART_PL01X
+ bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
+ help
+ Say Y here if you wish the debug print routes to direct
+ their output to a PL01x Primecell UART. You can use
+ this option to provide the parameters for the UART
+ rather than selecting one of the platform specific
+ options above if you know the parameters for the port.
+
+ This option is preferred over the platform specific
+ options; the platform specific options are deprecated
+ and will be soon removed.
+
+endchoice
+
+config DEBUG_AT91_UART
+ bool
+ depends on ARCH_AT91
+
+config DEBUG_EXYNOS_UART
+ bool
+
+config DEBUG_S3C2410_UART
+ bool
+ select DEBUG_S3C24XX_UART
+
+config DEBUG_S3C24XX_UART
+ bool
+
+config DEBUG_S3C64XX_UART
+ bool
+
+config DEBUG_S5PV210_UART
+ bool
+
+config DEBUG_OMAP2PLUS_UART
+ bool
+ depends on ARCH_OMAP2PLUS
+
+config DEBUG_IMX_UART_PORT
+ int "i.MX Debug UART Port Selection"
+ depends on DEBUG_IMX1_UART || \
+ DEBUG_IMX25_UART || \
+ DEBUG_IMX21_IMX27_UART || \
+ DEBUG_IMX31_UART || \
+ DEBUG_IMX35_UART || \
+ DEBUG_IMX50_UART || \
+ DEBUG_IMX51_UART || \
+ DEBUG_IMX53_UART || \
+ DEBUG_IMX6Q_UART || \
+ DEBUG_IMX6SL_UART || \
+ DEBUG_IMX6SX_UART || \
+ DEBUG_IMX6UL_UART || \
+ DEBUG_IMX7D_UART
+ default 1
+ help
+ Choose UART port on which kernel low-level debug messages
+ should be output.
+
+config DEBUG_VF_UART_PORT
+ int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART
+ default 1
+ range 0 3
+ depends on SOC_VF610
+ help
+ Choose UART port on which kernel low-level debug messages
+ should be output.
+
+config DEBUG_TEGRA_UART
+ bool
+ depends on ARCH_TEGRA
+
+config DEBUG_STI_UART
+ bool
+ depends on ARCH_STI
+
+config DEBUG_SIRFSOC_UART
+ bool
+ depends on ARCH_SIRF
+
+config DEBUG_LL_INCLUDE
+ string
+ default "debug/sa1100.S" if DEBUG_SA1100
+ default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP
+ default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default "debug/at91.S" if DEBUG_AT91_UART
+ default "debug/asm9260.S" if DEBUG_ASM9260_UART
+ default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2
+ default "debug/dc21285.S" if DEBUG_DC21285_PORT
+ default "debug/meson.S" if DEBUG_MESON_UARTAO
+ default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
+ default "debug/exynos.S" if DEBUG_EXYNOS_UART
+ default "debug/efm32.S" if DEBUG_LL_UART_EFM32
+ default "debug/icedcc.S" if DEBUG_ICEDCC
+ default "debug/imx.S" if DEBUG_IMX1_UART || \
+ DEBUG_IMX25_UART || \
+ DEBUG_IMX21_IMX27_UART || \
+ DEBUG_IMX31_UART || \
+ DEBUG_IMX35_UART || \
+ DEBUG_IMX50_UART || \
+ DEBUG_IMX51_UART || \
+ DEBUG_IMX53_UART ||\
+ DEBUG_IMX6Q_UART || \
+ DEBUG_IMX6SL_UART || \
+ DEBUG_IMX6SX_UART || \
+ DEBUG_IMX6UL_UART || \
+ DEBUG_IMX7D_UART
+ default "debug/ks8695.S" if DEBUG_KS8695_UART
+ default "debug/msm.S" if DEBUG_QCOM_UARTDM
+ default "debug/netx.S" if DEBUG_NETX_UART
+ default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
+ default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2
+ default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4
+ default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
+ default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
+ default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
+ default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
+ default "debug/s5pv210.S" if DEBUG_S5PV210_UART
+ default "debug/sirf.S" if DEBUG_SIRFSOC_UART
+ default "debug/sti.S" if DEBUG_STI_UART
+ default "debug/tegra.S" if DEBUG_TEGRA_UART
+ default "debug/ux500.S" if DEBUG_UX500_UART
+ default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
+ default "debug/vf.S" if DEBUG_VF_UART
+ default "debug/vt8500.S" if DEBUG_VT8500_UART0
+ default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
+ default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
+ default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
+ default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART
+ default "mach/debug-macro.S"
+
+# Compatibility options for PL01x
+config DEBUG_UART_PL01X
+ bool
+
+# Compatibility options for 8250
+config DEBUG_UART_8250
+ def_bool ARCH_EBSA110 || \
+ ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
+ ARCH_RPC
+
+config DEBUG_UART_PHYS
+ hex "Physical base address of debug UART"
+ default 0x00100a00 if DEBUG_NETX_UART
+ default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
+ default 0x01c28000 if DEBUG_SUNXI_UART0
+ default 0x01c28400 if DEBUG_SUNXI_UART1
+ default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1
+ default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2
+ default 0x01f02800 if DEBUG_SUNXI_R_UART
+ default 0x02530c00 if DEBUG_KEYSTONE_UART0
+ default 0x02531000 if DEBUG_KEYSTONE_UART1
+ default 0x03010fe0 if ARCH_RPC
+ default 0x07000000 if DEBUG_SUN9I_UART0
+ default 0x09405000 if DEBUG_ZTE_ZX
+ default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \
+ DEBUG_VEXPRESS_UART0_CA9
+ default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT
+ default 0x10124000 if DEBUG_RK3X_UART0
+ default 0x10126000 if DEBUG_RK3X_UART1
+ default 0x101f1000 if DEBUG_VERSATILE
+ default 0x101fb000 if DEBUG_NOMADIK_UART
+ default 0x10210000 if DEBUG_RV1108_UART2
+ default 0x10220000 if DEBUG_RV1108_UART1
+ default 0x10230000 if DEBUG_RV1108_UART0
+ default 0x11002000 if DEBUG_MT8127_UART0
+ default 0x11006000 if DEBUG_MT6589_UART0
+ default 0x11009000 if DEBUG_MT8135_UART3
+ default 0x16000000 if DEBUG_INTEGRATOR
+ default 0x18000300 if DEBUG_BCM_5301X
+ default 0x18000400 if DEBUG_BCM_HR2
+ default 0x18010000 if DEBUG_SIRFATLAS7_UART0
+ default 0x18020000 if DEBUG_SIRFATLAS7_UART1
+ default 0x18023000 if DEBUG_BCM_IPROC_UART3
+ default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
+ default 0x20001000 if DEBUG_HIP01_UART
+ default 0x20060000 if DEBUG_RK29_UART0
+ default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
+ default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
+ default 0x20201000 if DEBUG_BCM2835
+ default 0x3e000000 if DEBUG_BCM_KONA_UART
+ default 0x3f201000 if DEBUG_BCM2836
+ default 0x4000e400 if DEBUG_LL_UART_EFM32
+ default 0x40028000 if DEBUG_AT91_SAMV7_USART1
+ default 0x40081000 if DEBUG_LPC18XX_UART0
+ default 0x40090000 if DEBUG_LPC32XX
+ default 0x40100000 if DEBUG_PXA_UART1
+ default 0x42000000 if DEBUG_GEMINI
+ default 0x44e09000 if DEBUG_AM33XXUART1
+ default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
+ default 0x48022000 if DEBUG_TI81XXUART2
+ default 0x48024000 if DEBUG_TI81XXUART3
+ default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
+ DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
+ default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
+ DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
+ default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
+ default 0x49020000 if DEBUG_OMAP3UART3
+ default 0x49042000 if DEBUG_OMAP3UART4
+ default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
+ DEBUG_S3C2410_UART0)
+ default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
+ DEBUG_S3C2410_UART1)
+ default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
+ DEBUG_S3C2410_UART2)
+ default 0x78000000 if DEBUG_CNS3XXX
+ default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
+ default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
+ default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
+ default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
+ default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
+ default 0x80010000 if DEBUG_ASM9260_UART
+ default 0x80070000 if DEBUG_IMX23_UART
+ default 0x80074000 if DEBUG_IMX28_UART
+ default 0x80230000 if DEBUG_PICOXCELL_UART
+ default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX
+ default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
+ default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1
+ default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX
+ default 0xc0013000 if DEBUG_U300_UART
+ default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
+ default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
+ default 0xd0000000 if DEBUG_SPEAR3XX
+ default 0xd0012000 if DEBUG_MVEBU_UART0
+ default 0xc81004c0 if DEBUG_MESON_UARTAO
+ default 0xd4017000 if DEBUG_MMP_UART2
+ default 0xd4018000 if DEBUG_MMP_UART3
+ default 0xe0000000 if DEBUG_SPEAR13XX
+ default 0xe4007000 if DEBUG_HIP04_UART
+ default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
+ default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
+ default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4
+ default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2
+ default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0
+ default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
+ default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
+ default 0xe8008000 if DEBUG_R7S72100_SCIF2
+ default 0xf0000be0 if ARCH_EBSA110
+ default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
+ default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
+ default 0xf7fc9000 if DEBUG_BERLIN_UART
+ default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
+ default 0xf8b00000 if DEBUG_HIX5HD2_UART
+ default 0xf991e000 if DEBUG_QCOM_UARTDM
+ default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3
+ default 0xfcb00000 if DEBUG_HI3620_UART
+ default 0xfd883000 if DEBUG_ALPINE_UART0
+ default 0xfe800000 if ARCH_IOP32X
+ default 0xff690000 if DEBUG_RK32_UART2
+ default 0xffc02000 if DEBUG_SOCFPGA_UART0
+ default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1
+ default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
+ default 0xffd82340 if ARCH_IOP13XX
+ default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
+ default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
+ default 0xfff36000 if DEBUG_HIGHBANK_UART
+ default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
+ default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
+ default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
+ default 0xfffe8600 if DEBUG_BCM63XX_UART
+ default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU
+ default 0xfffff200 if DEBUG_AT91_RM9200_DBGU
+ default 0xfffff700 if ARCH_IOP33X
+ depends on ARCH_EP93XX || \
+ DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
+ DEBUG_LL_UART_EFM32 || \
+ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
+ DEBUG_NETX_UART || \
+ DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
+ DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
+ DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \
+ DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \
+ DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
+ DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
+ DEBUG_S3C64XX_UART || \
+ DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
+ DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
+ DEBUG_AT91_UART
+
+config DEBUG_UART_VIRT
+ hex "Virtual base address of debug UART"
+ default 0xc881f000 if DEBUG_RV1108_UART2
+ default 0xc8821000 if DEBUG_RV1108_UART1
+ default 0xc8912000 if DEBUG_RV1108_UART0
+ default 0xe0000a00 if DEBUG_NETX_UART
+ default 0xe0010fe0 if ARCH_RPC
+ default 0xf0000be0 if ARCH_EBSA110
+ default 0xf0010000 if DEBUG_ASM9260_UART
+ default 0xf01fb000 if DEBUG_NOMADIK_UART
+ default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
+ default 0xf1000300 if DEBUG_BCM_5301X
+ default 0xf1000400 if DEBUG_BCM_HR2
+ default 0xf1002000 if DEBUG_MT8127_UART0
+ default 0xf1006000 if DEBUG_MT6589_UART0
+ default 0xf1009000 if DEBUG_MT8135_UART3
+ default 0xf1023000 if DEBUG_BCM_IPROC_UART3
+ default 0xf11f1000 if DEBUG_VERSATILE
+ default 0xf1600000 if DEBUG_INTEGRATOR
+ default 0xf1c28000 if DEBUG_SUNXI_UART0
+ default 0xf1c28400 if DEBUG_SUNXI_UART1
+ default 0xf1f02800 if DEBUG_SUNXI_R_UART
+ default 0xf31004c0 if DEBUG_MESON_UARTAO
+ default 0xf4090000 if DEBUG_LPC32XX
+ default 0xf4200000 if DEBUG_GEMINI
+ default 0xf6200000 if DEBUG_PXA_UART1
+ default 0xf7000000 if DEBUG_SUN9I_UART0
+ default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
+ default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
+ DEBUG_S3C2410_UART0)
+ default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
+ default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
+ default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
+ default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
+ DEBUG_S3C2410_UART1)
+ default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
+ DEBUG_S3C2410_UART2)
+ default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
+ default 0xf7fc9000 if DEBUG_BERLIN_UART
+ default 0xf8007000 if DEBUG_HIP04_UART
+ default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9
+ default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
+ default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
+ default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
+ default 0xf9e09000 if DEBUG_AM33XXUART1
+ default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
+ default 0xfa022000 if DEBUG_TI81XXUART2
+ default 0xfa024000 if DEBUG_TI81XXUART3
+ default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
+ DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
+ default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
+ DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
+ default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
+ default 0xfa71e000 if DEBUG_QCOM_UARTDM
+ default 0xfb002000 if DEBUG_CNS3XXX
+ default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
+ default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
+ default 0xfb020000 if DEBUG_OMAP3UART3
+ default 0xfb042000 if DEBUG_OMAP3UART4
+ default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
+ default 0xfc705000 if DEBUG_ZTE_ZX
+ default 0xfcfe8600 if DEBUG_BCM63XX_UART
+ default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
+ default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
+ default 0xfd883000 if DEBUG_ALPINE_UART0
+ default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
+ default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
+ default 0xfe017000 if DEBUG_MMP_UART2
+ default 0xfe018000 if DEBUG_MMP_UART3
+ default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART
+ default 0xfe230000 if DEBUG_PICOXCELL_UART
+ default 0xfe300000 if DEBUG_BCM_KONA_UART
+ default 0xfe800000 if ARCH_IOP32X
+ default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART
+ default 0xfeb24000 if DEBUG_RK3X_UART0
+ default 0xfeb26000 if DEBUG_RK3X_UART1
+ default 0xfeb30c00 if DEBUG_KEYSTONE_UART0
+ default 0xfeb31000 if DEBUG_KEYSTONE_UART1
+ default 0xfec02000 if DEBUG_SOCFPGA_UART0
+ default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1
+ default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1
+ default 0xfec12000 if (DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE) && ARCH_MVEBU
+ default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
+ default 0xfec10000 if DEBUG_SIRFATLAS7_UART0
+ default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
+ default 0xfec20000 if DEBUG_SIRFATLAS7_UART1
+ default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1
+ default 0xfec90000 if DEBUG_RK32_UART2
+ default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
+ default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2
+ default 0xfed60000 if DEBUG_RK29_UART0
+ default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
+ default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
+ default 0xfedc0000 if DEBUG_EP93XX
+ default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1
+ default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART
+ default 0xfee82340 if ARCH_IOP13XX
+ default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
+ default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
+ default 0xfef36000 if DEBUG_HIGHBANK_UART
+ default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
+ default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
+ default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
+ default 0xfefff700 if ARCH_IOP33X
+ default 0xff003000 if DEBUG_U300_UART
+ default 0xffd01000 if DEBUG_HIP01_UART
+ default DEBUG_UART_PHYS if !MMU
+ depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
+ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
+ DEBUG_NETX_UART || \
+ DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
+ DEBUG_S3C64XX_UART || \
+ DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
+ DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
+ DEBUG_AT91_UART
+
+config DEBUG_UART_8250_SHIFT
+ int "Register offset shift for the 8250 debug UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default 0 if DEBUG_FOOTBRIDGE_COM1 || ARCH_IOP32X || DEBUG_BCM_5301X || \
+ DEBUG_BCM_HR2 || DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || \
+ DEBUG_OMAP7XXUART3
+ default 2
+
+config DEBUG_UART_8250_WORD
+ bool "Use 32-bit accesses for 8250 UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ depends on DEBUG_UART_8250_SHIFT >= 2
+ default y if DEBUG_PICOXCELL_UART || \
+ DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \
+ DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \
+ DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \
+ DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
+ DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
+ DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
+
+config DEBUG_UART_8250_PALMCHIP
+ bool "8250 UART is Palmchip BK-310x"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ help
+ Palmchip provides a UART implementation compatible with 16550
+ except for having a different register layout. Say Y here if
+ the debug UART is of this type.
+
+config DEBUG_UART_8250_FLOW_CONTROL
+ bool "Enable flow control for 8250 UART"
+ depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
+ default y if ARCH_EBSA110 || DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC
+
+config DEBUG_UNCOMPRESS
+ bool "Enable decompressor debugging via DEBUG_LL output"
+ depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
+ depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
+ (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
+ !DEBUG_BRCMSTB_UART
+ help
+ This option influences the normal decompressor output for
+ multiplatform kernels. Normally, multiplatform kernels disable
+ decompressor output because it is not possible to know where to
+ send the decompressor output.
+
+ When this option is set, the selected DEBUG_LL output method
+ will be re-used for normal decompressor output on multiplatform
+ kernels.
+
+
+config UNCOMPRESS_INCLUDE
+ string
+ default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
+ PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
+ default "mach/uncompress.h"
+
+config EARLY_PRINTK
+ bool "Early printk"
+ depends on DEBUG_LL
+ help
+ Say Y here if you want to have an early console using the
+ kernel low-level debugging functions. Add earlyprintk to your
+ kernel parameters to enable this console.
+
+config ARM_KPROBES_TEST
+ tristate "Kprobes test module"
+ depends on KPROBES && MODULES
+ help
+ Perform tests of kprobes API and instruction set simulation.
+
+config PID_IN_CONTEXTIDR
+ bool "Write the current PID to the CONTEXTIDR register"
+ depends on CPU_COPY_V6
+ help
+ Enabling this option causes the kernel to write the current PID to
+ the PROCID field of the CONTEXTIDR register, at the expense of some
+ additional instructions during context switch. Say Y here only if you
+ are planning to use hardware trace tools with this kernel.
+
+source "drivers/hwtracing/coresight/Kconfig"