select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_KEEP_MEMBLOCK
select ARCH_MIGHT_HAVE_PC_PARPORT
- select ARCH_NO_SG_CHAIN if !ARM_HAS_SG_CHAIN
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_WANT_LD_ORPHAN_WARN
select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
select BUILDTIME_TABLE_SORT if MMU
+ select COMMON_CLK if !(ARCH_RPC || ARCH_FOOTBRIDGE)
select CLONE_BACKWARDS
select CPU_PM if SUSPEND || CPU_IDLE
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select HAVE_OPTPROBES if !THUMB2_KERNEL
+ select HAVE_PCI if MMU
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select OF_EARLY_FLATTREE if OF
select OLD_SIGACTION
select OLD_SIGSUSPEND3
+ select PCI_DOMAINS_GENERIC if PCI
select PCI_SYSCALL if PCI
select PERF_USE_VMALLOC
select RTC_LIB
+ select SPARSE_IRQ if !(ARCH_FOOTBRIDGE || ARCH_RPC)
select SYS_SUPPORTS_APM_EMULATION
select THREAD_INFO_IN_TASK
+ select TIMER_OF if OF
select HAVE_ARCH_VMAP_STACK if MMU && ARM_HAS_GROUP_RELOCS
select TRACE_IRQFLAGS_SUPPORT if !CPU_V7M
+ select USE_OF if !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
# Above selects are sorted alphabetically; please add new ones
# according to that. Thanks.
help
which is usually sufficient, but not for allyesconfig, so we disable
this feature when doing compile testing.
-config ARM_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_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime" if EMBEDDED
default y
- depends on !XIP_KERNEL && MMU
+ depends on MMU
help
Patch phys-to-virt and virt-to-phys translation functions at
boot and module load time according to the position of the
config PHYS_OFFSET
hex "Physical address of main memory" if MMU
- depends on !ARM_PATCH_PHYS_VIRT
+ depends on !ARM_PATCH_PHYS_VIRT || !AUTO_ZRELADDR
default DRAM_BASE if !MMU
default 0x00000000 if ARCH_FOOTBRIDGE
default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
config ARM_SINGLE_ARMV7M
def_bool !MMU
select ARM_NVIC
- select AUTO_ZRELADDR
- select TIMER_OF
- select COMMON_CLK
select CPU_V7M
select NO_IOPORT_MAP
- select SPARSE_IRQ
- select USE_OF
config ARCH_MMAP_RND_BITS_MIN
default 8
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"
- depends on MMU
- default ARCH_MULTIPLATFORM
-
config ARCH_MULTIPLATFORM
- bool "Allow multiple platforms to be selected"
- select ARCH_FLATMEM_ENABLE
- select ARCH_SPARSEMEM_ENABLE
- select ARCH_SELECT_MEMORY_MODEL
- select ARM_HAS_SG_CHAIN
- select ARM_PATCH_PHYS_VIRT
- select AUTO_ZRELADDR
- select TIMER_OF
- select COMMON_CLK
- select HAVE_PCI
- select PCI_DOMAINS_GENERIC if PCI
- select SPARSE_IRQ
- select USE_OF
-
-config ARCH_FOOTBRIDGE
- bool "FootBridge"
- depends on CPU_LITTLE_ENDIAN
- depends on ATAGS
- select CPU_SA110
- select FOOTBRIDGE
- 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_RPC
- bool "RiscPC"
- depends on !CC_IS_CLANG && GCC_VERSION < 90100 && GCC_VERSION >= 60000
- depends on CPU_LITTLE_ENDIAN
- depends on ATAGS
- select ARCH_ACORN
- select ARCH_MAY_HAVE_PC_FDC
- select ARCH_SPARSEMEM_ENABLE
- select ARM_HAS_SG_CHAIN
- select CPU_SA110
- select FIQ
- select HAVE_PATA_PLATFORM
- select ISA_DMA_API
- select LEGACY_TIMER_TICK
- select NEED_MACH_IO_H
- select NEED_MACH_MEMORY_H
- select NO_IOPORT_MAP
+ bool "Require kernel to be portable to multiple machines" if EXPERT
+ depends on MMU && !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
+ default y
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.
+ In general, all Arm machines can be supported in a single
+ kernel image, covering either Armv4/v5 or Armv6/v7.
-config ARCH_SA1100
- bool "SA1100-based"
- depends on CPU_LITTLE_ENDIAN
- depends on ATAGS
- select ARCH_MTD_XIP
- select ARCH_SPARSEMEM_ENABLE
- select CLKSRC_MMIO
- select CLKSRC_PXA
- select TIMER_OF if OF
- select COMMON_CLK
- select CPU_FREQ
- select CPU_SA1100
- select GPIOLIB
- select IRQ_DOMAIN
- select ISA
- select NEED_MACH_MEMORY_H
- select SPARSE_IRQ
- help
- Support for StrongARM 11x0 based boards.
+ However, some configuration options require hardcoding machine
+ specific physical addresses or enable errata workarounds that may
+ break other machines.
-endchoice
+ Selecting N here allows using those options, including
+ DEBUG_UNCOMPRESS, XIP_KERNEL and ZBOOT_ROM. If unsure, say Y.
-menu "Multiple platform selection"
- depends on ARCH_MULTIPLATFORM
+menu "Platform selection"
+ depends on MMU
comment "CPU Core family selection"
config ARCH_MULTI_V4
- bool "ARMv4 based platforms (FA526)"
+ bool "ARMv4 based platforms (FA526, StrongARM)"
depends on !ARCH_MULTI_V6_V7
select ARCH_MULTI_V4_V5
- select CPU_FA526
+ select CPU_FA526 if !(CPU_SA110 || CPU_SA1100)
config ARCH_MULTI_V4T
bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
select ARM_GIC_V3
select ARM_PSCI
select HAVE_ARM_ARCH_TIMER
- select COMMON_CLK
help
Support for Airoha EN7523 SoCs
source "arch/arm/mach-realtek/Kconfig"
+source "arch/arm/mach-rpc/Kconfig"
+
source "arch/arm/mach-rockchip/Kconfig"
source "arch/arm/mach-s3c/Kconfig"
config PLAT_ORION
bool
select CLKSRC_MMIO
- select COMMON_CLK
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
(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 SMP_ON_UP
bool "Allow booting SMP kernel on uniprocessor systems"
- depends on SMP && !XIP_KERNEL && MMU
+ depends on SMP && MMU
default y
help
SMP kernels contain instructions which fail on non-SMP processors.
config ARM_PATCH_IDIV
bool "Runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()"
- depends on CPU_32v7 && !XIP_KERNEL
+ depends on CPU_32v7
default y
help
The ARM compiler inserts calls to __aeabi_idiv() and
at all). If in doubt say N.
config ARCH_SELECT_MEMORY_MODEL
- bool
+ def_bool y
config ARCH_FLATMEM_ENABLE
- bool
+ def_bool !(ARCH_RPC || ARCH_SA1100)
config ARCH_SPARSEMEM_ENABLE
- bool
+ def_bool !ARCH_FOOTBRIDGE
select SPARSEMEM_STATIC if SPARSEMEM
config HIGHMEM
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"
config XIP_KERNEL
bool "Kernel Execute-In-Place from ROM"
depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
+ depends on !ARM_PATCH_IDIV && !ARM_PATCH_PHYS_VIRT && !SMP_ON_UP
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
For more details see Documentation/admin-guide/kdump/kdump.rst
config AUTO_ZRELADDR
- bool "Auto calculation of the decompressed kernel image address"
+ bool "Auto calculation of the decompressed kernel image address" if !ARCH_MULTIPLATFORM
+ default !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
help
ZRELADDR is the physical address where the decompressed kernel
image will be placed. If AUTO_ZRELADDR is selected, the address
projects / linux-block.git / blobdiff